Page 1 HF-320α Series Single phase input 200V class 0.2~2.2kW Three phase input 200V class 0.2~7.5kW Three phase input 400V class 0.4~7.5kW NOT IC E 1. Make s ure that this operating and maintenance manual is delivered to the end user of inverter unit. 2.
Page 2 S afety precaution Introduction C ontents R ead firs t C onnection equipment Operations B as ic HF -320 α operations B as ic parameters E xtended parameters Applied operations Monitoring the operation s tatus T aking meas ures to s atis fy the C E directive P eripheral devices T able of parameters...
Page 3 Safety precautions The items described in these instructions and on the inverter itself are very important so that you can use the in- verter safely prevent injury to yourself and other people around you as well as prevent damage to property in the area.
Page 4 General Operation Danger See item • Never disassemble, modify or repair. This can result in electric shock, fire and injury. For repairs, call your sales agency. Disassembly prohibited • Never remove the front cover when power is on or open door if enclosed in a cabinet. The unit contains many high voltage parts and contact with them will result in electric shock.
Page 5 Transportation & installation Danger See item • Do not install or operate the inverter if it is damaged or any component is missing. 1.4.4 This can result in electric shock or fire. Please consult your local sales agency for repairs. Call your local sales agency for repairs.
Page 6 Danger See item • Electrical construction work must be done by a qualified expert. Connection of input power by someone who does not have that expert knowledge may re- sult in fire or electric shock. • Connect output terminals (motor side) correctly. If the phase sequence is incorrect, the motor will operate in reverse and that may result in injury.
Page 7 Warning See item • Observe all permissible operating ranges of motors and mechanical equipment. (Refer to the motor's instruction manual.) Not observing these ranges may result in injury. Prohibited When sequence for restart after a momentary failure is selected (inverter) Warning See item •...
Page 8 Disposal Warning See item • If you throw away the inverter, have it done by a specialist in industry waste disposal(*). If you throw away the inverter by yourself, this can result in explosion of capacitor or pro- duce noxious gases, resulting in injury. (*) Persons who specialize in the processing of waste and known as "industrial waste prod- uct collectors and transporters"...
Page 9: Introduction
II. Introduction Thank you for your purchase of the Sumitomo "HF-320α” inverter. Please be informed that CPU version will be frequently upgraded. ■ Features 1. Built-in noise filter All models in both the 200V and 400V series have a noise filter inside.
Page 10: Table Of Contents
  Contents Safety precautions................................. 1 Introduction..................................7 1. Read first ..................................A-1 Check product purchase............................ A-1 Contents of the product ............................. A-3 Names and functions............................A-4 Notes on the application ............................ A-16 2. Connection equipment..............................B-1 Cautions on wiring ............................. B-1 Standard connections ............................
Page 11 Terminal function selection..........................F-7 Basic parameters 2 ............................F-15 Frequency priority selection ..........................F-16 Operation frequency............................F-23 DC braking .................................F-24 Auto-stop in case of lower-limit frequency continuous operation ...............F-27 Jog run mode ..............................F-28 6.10 Jump frequency-jumping resonant frequencies ....................F-30 6.11 Preset-speed operation frequencies ........................F-31 6.12 PWM carrier frequency ............................F-31 6.13...
Page 12 12. Specifications................................. L-1 12.1 Models and their standard specifications......................L-1 12.2 Outside dimensions and mass........................... L-4 13. Before making a service call - Trip information and remedies ..................M-1 13.1 Trip causes/warnings and remedies ........................M-1 13.2 Restoring the inverter from a trip ........................M-6 13.3 If the motor does not run while no trip message is displayed ................
Page 13: Read First
1. Read first Check product purchase Before using the product you have purchased, check to make sure that it is exactly what you ordered. Warning Use an inverter that conforms to the specifications of power supply and three-phase induction mo- tor being used.
Page 14: Contents Of The Product
Contents of the product Here is explained the type and form written on the label. Type Form − ＨＦ３２１２Ａ２０ Application motor Model Input(AC) voltage...
Page 15: Names And Functions
Names and functions 1.3.1 Outside view Percent(%) lamp RUN lamp Lights when an ON command is issued but Lights when a numeric no frequency signal is sent out. It binks value is displayed in %. when operation is started. PRG lamp Hertz(Hz) lamp Lights when the inverter Lights when a numeric...
Page 16 Unlock position mark The front panel is unlocked when the dot on the locking screw is on this (upper) side. Charge lamp Indicates that high voltage is still Front panel locking screw present within the inverter. Do not open the terminal board cover The inverter came with this while this is lit.
Page 17 Top warning label Note1) Control cable port Cooling fin Communication connector hole Main circuit Ventilation slit cable port Name plate [Bottom] [Right side] Note 1) Remove this seal when install it where the ambient temperature will rise above 40°C. Example of the label 40˚C 50mm...
Page 18 1.3.2 Main circuit and control circuit terminal boards 1) Main circuit terminal board When using lug connector, cover the lug connector with insulated tube, or use the insulated lug connec- tor. Screw size tightening torque M3.5 screw 0.9N m 7.1lb in M4 screw 1.3N m 10.7lb in...
Page 19 HF3212-1A5 ∼ 3A7 M3.5 screw (1A5 only) M4 screw (2A2,3A7) P(+) N(-) Shorting-bar Grounding terminal (M5 screw) Screw hole of EMC plate Note 1 HF321S-A20 ∼ A75 Grounding capacitor M3.5 screw disconnecting switch P(+) N(-) Shorting-bar Grounding terminal (M5 screw) Screw hole of EMC plate Note 1 Note 1: EMC plate is optional.
Page 20 HF321S-1A5,2A2 Grounding capacitor disconnecting switch M4 screw P(+) N(-) Shorting-bar Grounding terminal (M5 screw) Screw hole of EMC plate Note 1 HF3214-A40 ∼ 3A7 Grounding capacitor disconnecting switch M4 screw N(-) P(+) Shorting-bar Grounding terminal Screw hole of EMC plate (M5 screw) Note 1 Note 1: EMC plate is optional.
Page 21 HF3212-5A5, 7A5 HF3214-5A5, 7A5 Grounding capacitor disconnecting tap M4 screw (HF3214 only) M5 screw N(-) P(+) Shorting-bar Grounding terminal Screw hole of EMC plate (M5 screw) Note 1 Note 1: EMC plate is optional.
Page 22 HF3212-011, 015 HF3214-011, 015 Grounding capacitor disconnecting tap M4 screw (HF3214 only) M6 screw PR N(-) P(+) Shorting-bar Grounding terminal Screw hole of EMC plate (M5 screw) Note 1 In case of the lug connector, cover the lug connector with insulated tube, or use the insulated lug con- nector.
Page 23 2) Grounding capacitor disconnecting switch and taps Warning The grounding capacitor disconnecting tap is provided with a protection cover. To avoid shock hazards, always attach the cover after connecting or disconnecting the capacitor to or from the tap. Mandatory Every single-phase 200V/three-phase 400V model has a built-in high-attenuation noise filter, which is grounded through a capacitor.
Page 24 5.5kW or more : Tap To disconnect the capacitor from the grounding, connect the lug terminal to this tap. To connect the capacitor from the grounding, connect the lug terminal to this tap. (Factory default setting) A-12...
Page 25 3) Control circuit terminal board The control circuit terminal board is common to all equipment. DRV OM FRQ COM P24V FRQ VRF PCS DFL DFM DFH M3 screw V side VRF VRF2 (0.5N・m) I side RR RST COM Optional connector (RJ45) Wire size Factory default settings of slide switches...
Page 26 1.3.3 How to open the front (terminal board) cover To wire the terminal board, remove the front lower cover in line with the steps given below. Turn the locking screw on the right Pull the front panel toward you side of the front panel 90° and swing it open to the left.
Page 27: Notes On The Application
Notes on the application 1.4.1 Motors When the HF-320α and the motor are used in conjunction, pay attention to the following items. Warning Use an inverter that conforms to the specifications of power supply and three-phase induction motor be- ing used. If the inverter being used does not conform to those specifications, not only will the three-phase Mandatory induction motor not rotate correctly, but it may cause serious accidents through overheating and fire.
Page 28 Low loads and low inertia loads The motor may demonstrate instability such as abnormal vibrations or overcurrent trips at light loads of 50 % or under of the load percentage, or when the load's inertia moment is extremely small. If that hap- pens reduce the carrier frequency.
Page 29 In circuit configuration 1, the brake is turned on and off through MC2 and MC3. If the circuit is config- ured in some other way, the overcurrent trip may be activated because of the locked rotor current when the brake goes into operation. Circuit configuration 2 uses low-speed signal RY to turn on and off the brake.
Page 30 Power factor improving capacitor Power factor improving capacitors cannot be installed on the output side of the inverter. When a motor is run that has a power factor improving capacitor attached to it, remove the capacitors. This can cause inverter malfunction trips and capacitor destruction. Inverter Remove the power factor improving capacitor and surge absorber...
Page 31 ■ Disposal If an inverter is no longer usable, dispose of it as industrial waste. 1.4.3 What to do about the leak current Warning Current may leak through the inverter's input/output wires because of insufficient electrostatic capacity on the motor with bad effects on peripheral equipment.
Page 32 (2) Affects of leak current across lines Thermal relays Inverter Power supply Leak current path across wires Thermal relays The high frequency component of current leaking into electrostatic capacity between inverter out- put wires will increase the effective current values and make externally connected thermal relays operate improperly.
Page 33 CT and ammeter If a CT and ammeter are connected externally to detect inverter output current, the leak current's high frequency component may destroy the ammeter. If the wires are more than 50 meters long, it will be easy for the high frequency component to pass through the externally connected CT and be superim- posed on and burn the ammeter with models having motors of low rated current (several A(ampere) or less), especially the 400V class low capacity (3.7kW or less) models, because the leak current will in- crease in proportion to the motor's rated current.
Page 34 Warning • Avoid operation in any location where there is direct spraying of the following solvents or other chemi- cals. The plastic parts may be damaged to a certain degree depending on their shape, and there is a possibility of the plastic covers coming off and the plastic units being dropped. If the chemical or sol- Prohibited vent is anything other than those shown below, please contact us in advance.
Page 35 Operation cannot be stopped immediately by the inverter alone, thus risking an accident or injury. • All options used must be those specified by Sumitomo. The use of any other option may result in an accident.
Page 36 Do not install in any location where there is high humidity or high temperatures and where there are large amounts of dust, metallic fragments and oil mist. If you are going to install the equipment in any area that presents a potential problem, please consult with Sumitomo before doing so. A-24...
Page 37 ■ Calorific values of the inverter and the required ventilation About 5% of the rated power of the inverter will be lost as a result of conversion from AC to DC or from DC to AC. In order to suppress the rise in temperature inside the cabinet when this loss becomes heat loss, the in- terior of the cabinet must be ventilated and cooled.
Page 38 ■ Installing more than one unit in a cabinet If you are installing two or more inverters in one cabinet, pay attention to the following. • When using inverters where the ambient temperature will rise above 40°C, leave a space of 5 cm or more between them and remove the caution label from the top of each inverter, or operate each inverter at a current lower than the rated one.
Page 39: Connection Equipment
2. Connection equipment Danger • Never disassemble, modify or repair. This can result in electric shock, fire and injury. For repairs, call your sales agency. Disassembly prohibited • Don't stick your fingers into openings such as cable wiring hole and cooling fan covers. This can result in electric shock or other injury.
Page 40 Danger • Ground must be connected securely. If the ground is not securely connected, it could lead to electric shock or fire when a malfunction or cur- rent leak occurs. Be Grounded Warning • Do not attach devices with built-in capacitors (such as noise filters or surge absorber) to the output (motor side) terminal.
Page 41: Standard Connections
Standard connections Danger • Do not connect input power to the output (motor side) terminals (U/T1, V/T2, W/T3). Connecting input power to the output could destroy the inverter or cause a fire. • Do not insert a resistor between DC terminals (between P(+) and N(-), or between P1 and N(-)). Prohibited It could cause a fire.
Page 42 2.2.1 Standard connection diagram 1 This diagram shows a standard wiring of the main circuit. Standard connection diagram-sink (common:COM) DC reactor(DCL) Braking resister (option) *2 (option) N(-) P(+) Motor Main circuit power supply MCCB R/L1 U/T1 200V class: three-phase 200-240V S/L2 V/T2 -50/60Hz...
Page 43 2.2.2 Standard connection diagram 2 Standard connection diagram-source (common:P24V) DC reactor (DCL) Braking resister (option) *2 (option) N(-) P(+) Motor Main circuit power supply MCCB R/L1 U/T1 200V class: three-phase 200-240V -50/60Hz S/L2 V/T2 Noise Main circuit 400V class: three-phase 380-500V T/L3 W/T3 filter...
Page 44: Description Of Terminals
Description of terminals 2.3.1 Main circuit terminals This diagram shows an example of wiring of the main circuit. Use options if necessary. ■ Power supply and motor connections Power supply HF-320α Power lines are Motor lines are Motor connected to R.,S., and T. connected to U.,V., and W.
Page 45 ■ Main circuit Terminal symbol Terminal function Grounding terminal for connecting inverter. There are 3 terminals in total. 2 terminals in the terminal board, 1 terminal in the cooling fin. 200V class: single-phase 200~240V-50/60Hz three-phase 200~240V-50/60Hz R/L1,S/L2,T/L3 400V class: three-phase 380~500V-50/60Hz * Single-phase input: R/L1 and S/L2 terminals Connect to a (three-phase induction) motor.
Page 46 2.3.2 Control circuit terminals (sink logic) The control circuit terminal board is common to all equipment. DRV OM FRQ COM P24V FRQ VRF PCS DFL DFM DFH M3 screw V side VRF VRF2 (0.5N・m) I side RR RST COM Optional connector (RJ45) Wire size Factory default settings of slide switches...
Page 47 Terminal Electrical Input/output Function Inverter internal circuits symbol specifications Shorting across FR-COM causes forward rotation; open causes slow- Input down and stop. (When ST is always Shorting across RR-COM causes reverse rotation; open causes slow- Input down and stop. (When ST is always No voltage contact input 24Vdc-5mA or less...
Page 48 Terminal Electrical Input/output Function Inverter internal circuits symbol specifications Multifunction programmable analog input. Standard default setting: 0~10Vdc input and 0~60Hz frequency 10Vdc By changing parameter setting, this termi- VRF2 Input (internal imped- VRF2 nal can also be used as a multifunction ance: 30kΩ) programmable contact input terminal.
Page 49 Terminal Electrical Input/output Function Inverter internal circuits symbol specifications Multifunction programmable relay contact 250Vac-1A output. Contact ratings: 250 Vac- (cosφ=1) 1A(cosφ=1), 30Vdc-0.5A, 250Vac- : at resistance load Output 30Vdc-0.5A 0.5A(cosφ=0.4). 250Vac-0.5A Multifunction output terminals to which two different functions can be assigned. (cosφ=0.4) B-11...
Page 50 ■ Sink logic/source logic (When the inverter's internal power supply is used) Current flowing out turns control input terminals on. These are called sink logic terminals. The general used method in Europe is source logic in which current flowing into the input terminal turns it Sink logic terminals and source logic terminals are sometimes referred to as minus common terminals and positive common terminals, respectively.
Page 51 ■ Sink logic/source logic (When an external power supply is used) The PCS terminal is used to connect to an external power supply or to insulate a terminal from other input or output terminals. As for input terminals, turn the SW1 slide switch to the PCS position. ＜Examples of connections when an external power supply is used＞...
Page 52 ■ Logic switching/Voltage-current output switching (slide switch) Logic switching Use SW1 to switch between logics. Switch between logics before wiring to the inverter and without supplying power. If switching between sink, source and PCS is done when power is turned on after switching or when the inverter is supplied with power, the inverter might become damaged.
Page 53: Operations
3. Operations Danger • Do not touch inverter terminals when electrical power is going to the inverter even if the motor is stopped. Touching the inverter terminals while power is connected to it may result in electric shock. • Do not touch switches when the hands are wet and do not try to clean the inverter with a damp cloth. Prohibited Such practices may result in electric shock.
Page 54: Simplified Operation Of The Hf-320Α
Simplified Operation of the HF-320α The procedures for setting operation frequency and the methods of operation can be selected from the following. : (1) Start and stop using the operation panel keys Start / Stop (2) Run and stop from the operation panel : (1) Setting using the potentiometer on the inverter Setting the frequency main unit...
Page 55 3.1.1 How to start and stop [Example of a  setting procedure] Key operated LED display Operation Displays the operation frequency (operation stopped).  (When standard monitor display selection = [Operation frequency])  Displays the first basic parameter [History ()]. ...
Page 56 3.1.2 How to set the frequency [Example of a  setting procedure] Key operated LED display Operation Displays the operation frequency (operation stopped).  (When standard monitor display selection = [Operation frequency])  Displays the first basic parameter [History ()]. ...
Page 57 ■ Example of operating a run from the panel Key operated LED display Operation Displays the operation frequency.  (When standard monitor display selection = [Operation frequency])  Set the operation frequency. Press the STR key to save the operation frequency.  and the ⇔...
Page 58 (3) Setting the frequency using the operation panel (= or ) ■ Frequency setting Setting the frequency using external potentiometer ★Potentiometer Setting frequency using the potentiometer (1-10kΩ, 1/4W) For more detailed information on adjustments, see 6.5. : Setting frequency VRF2 60Hz using potentiometer Frequency...
Page 59: How To Operate Hf-320Α
How to operate the HF-320α Overview of how to operate the inverter with simple examples. Setting the operation frequency using built-in potentiometer and run- Ex.1 ning and stopping using the operation panel. Wiring P(+) N(-) Motor MCCB R/L1 U/T1 S/L2 V/T2 Noise Main circuit...
Page 60 Setting the operation frequency using the operation panel and run- Ex.2 ning and stopping using the operation panel. Wiring P(+) N(-) Motor MCCB R/L1 U/T1 S/L2 V/T2 Noise Main circuit filter W/T3 T/L3 Braking circuit Parameter setting Title Function Programmed value ...
Page 61 Setting the operation frequency using built-in potentiometer and run- Ex.3 ning and stopping using external signals. Wiring P(+) N(-) Motor MCCB R/L1 U/T1 S/L2 V/T2 Noise Main circuit filter T/L3 W/T3 Braking Run forward circuit signal backward signal Common Parameter setting Title Function Programmed value...
Page 62 Operation frequency setting, running and stopping using external Ex.4 signals. Wiring P(+) N(-) Motor MCCB R/L1 U/T1 S/L2 V/T2 Noise Main circuit T/L3 W/T3 filter Run forward signal Braking circuit Run backward signal Common Current signal: 4∼20mA VRF2 Voltage signal: 0∼10V External potentiometer (Otherwise, input voltage signal (0~10V) between the terminals VRF-COM.) Parameter setting...
Page 63: Basic Hf-320Α Operations
4. Basic HF-320 operations The HF-320 has the following three monitor modes. : The standard inverter mode. This mode is enabled when Standard monitor mode inverter power goes on. This mode is for monitoring the output frequency and setting the frequency designated value.
Page 64 : This mode allows you to jog the motor by controlling the Panel jog mode operation from the operation panel. This mode is hidden by default. To use the panel jog mode, set the parameter  to. Here is the sequence in which modes change each time you press the key.
Page 65: How To Set Parameters
Standard monitor mode How to set parameters The standard default parameters are programmed before the unit is shipped from the factory. Parameters can be divided into 4 major categories. Select the parameter to be changed or to be searched and retrieved. : The basic parameters that must be programmed be- Basic parameters fore the first use.
Page 66 Basic parameters 4.1.1 How to set the basic parameters All of the basic parameters can be set by the same step procedures. [Steps in key entry for basic parameters] * Parameters were factory-set by default Switches to the setting monitor mode. before shipment.
Page 67 4.1.2 How to set extended parameters The HF-320 has extended parameters to allow you to make full use of its functions. All extended parameters are expressed with  and three digits. Basic parameters ～  Press the ▲ key or the ▼ key to Press the MON key once and use the ▲▼...
Page 68 ■ Example of parameter setting Steps in setting are as follows (Example of changing the dynamic braking selection  from 0 to 1.) Key operated LED display Operation Displays the operation frequency (operation stopped). (When standard monitor display selection = [Operation ....
Page 69 Key operated LED display Operation Press the STR key to enable the user parameter automatic edit  function.  Searches for parameters that are different in value from the standard default setting and displays those parameters. Press the STR key or （）...
Page 70 ■ How to use the history function Key operated LED display Operation Displays the operation frequency (operation stopped).  (When standard monitor display selection = [Operation frequency])  The first basic parameter “” (history function) is displayed.  The parameter that was set or changed last is displayed. ...
Page 71 4.1.5 Parameters that cannot be changed while running For reasons of safety, the following parameters have been set up so that they cannot be reprogrammed while the inverter is running. Stop operation (“0.0” or “off” is displayed) before changing parameter settings. [Basic parameters] ...
Page 72 4.1.6 Returning all parameters to standard default setting Setting the standard default setting parameter =, all parameters can be returned to the those factory default settings. Note: For more details on the standard default setting parameter , see 5.6. Notes on operation •...
Page 73: Basic Parameters
5. Basic parameters Before you operate the inverter, the parameters that you must first program are the basic parameters. Setting acceleration/deceleration time  ：Automatic acceleration/deceleration  ：Acceleration time 1  ：Deceleration time 1 • Function 1) For acceleration time 1  programs the time that it takes for the inverter output frequency to go from 0Hz to maximum frequency .
Page 74 [Parameter setting] Title Function Adjustment range Default setting 0: Disabled (manual)  Automatic acceleration/deceleration 1: Automatic 2: Automatic (only at acceleration) ✩ When automatically setting acceleration/deceleration time, always change the acceleration/deceleration time so that it conforms with the load. The acceleration/deceleration time changes constantly with load fluctuations.
Page 75: Increasing Starting Torque
[Parameter setting] Title Function Adjustment range Default setting  Acceleration time 1 0.0-3200 sec. 10.0  Deceleration time 1 0.0-3200 sec. 10.0 Note: When the acceleration/deceleration time is set at 0.0 seconds, the inverter speed increases or reduces speed within 0.05 seconds. ✩...
Page 76 [Setting methods] Key operated LED display Operation Displays the operation frequency. (Perform during operation stopped.) .  (When standard monitor display selection  is set to  [Op- eration frequency])  The first basic parameter “” (history function) is displayed. key to change the parameter to ...
Page 77 [Setting methods] Key operated LED display Operation Displays the operation frequency. (Perform during operation stopped.) .  (When standard monitor display selection  is set to  [Op- eration frequency])  The first basic parameter “” (history function) is displayed. Press the △...
Page 78 If sensorless vector control cannot be programmed..First read the precautions about vector control in 5.11, 8. 1) If the desired torque cannot be obtained ⇒ see 6.17,2 2) If auto-tuning error “” appears ⇒ see 6.17,3 ■ (automatic torque boost) and  (V/F control mode selection 1) Automatic torque boost is the parameter for setting V/F control mode selection 1 () and auto- tuning () together.
Page 79: Specifying An Operation Mode, Using Parameters
Specifying an operation mode, using parameters  : Automatic function setting • Function Automatically programs all parameters (parameters described below) related to the functions by selecting the inverter's operating method. The major functions can be programmed simply. [Parameter setting] Title Function Adjustment range Default setting...
Page 80: Selection Of Operation Mode
3-wire operation (=) Can be operated by a momentary push-button. HD (operation holding) is assigned to the terminal DFH. A self- holding of operations is made in the inverter by connecting the stop switch (b-contact) to the DFH terminal and connecting the running switch (a-contact) to the FR terminal or the RR terminal.
Page 81 * There are two types of function: the function that conforms to commands selected by , and the function that conforms only to commands from the terminal board. See the table of input terminal function selection in Chapter 11. * When priority is given to commands from a linked computer or terminal board, they have priority over the set- ting of .
Page 82: Meter Setting And Adjustment
✩ To make changes in the command mode selection  and the frequency setting mode selection 1 , first stop the inverter temporarily. (Can be changed while in operation when  is set to .) ■ Preset-speed operation : Set to  (Terminal board). : Valid in all setting values.
Page 83 ■ Resolution All FRQ terminals have a maximum of 1/256. ■ Example of 4-20mA programmed output (for details, see 6.20.2) =1, =0 =1, =20 (mA) (mA)       100% 100% Note) Note that, if fmsl is set to 7 (torque), data will be updated at intervals of more than 40 ms. ■...
Page 84 [Example of how to adjustment the FRQ terminal frequency meter] Use the meter's adjustment screw to pre-adjust zero-point. Key operated LED display Operation Displays the operation frequency. .  (When standard monitor display selection  is set to  [Operation frequency]) ...
Page 85: Standard Default Setting
Standard default setting  : Default setting • Function, Allows setting of all parameters to the standard default setting, etc. at one time. Note that , , ,  and  will not be reset to their factory default settings. Title Function Adjustment range...
Page 86: Forward/Reverse Run Selection (Operation Panel Operation
Cumulative fan operation time record clear ( = ) Setting  to  resets the cumulative operation time to the initial value (zero). Set this parameter when replacing the cooling fan, and so on. Forward/reverse run selection (Operation panel operation) ...
Page 87: Maximum Frequency
Maximum frequency : Maximum frequency • Function 1) Programs the range of frequencies output by the inverter (maximum output values). 2) This frequency is used as the reference for acceleration/deceleration time. Output frequency When =80Hz ・This function determines the value (Hz) 80Hz in line with the ratings of the motor...
Page 88: Base Frequency
■ Parameter setting Factory default Title Function Adjustment range setting 0.5 -  (Hz)  Upper limit frequency 60.0 0.0 -  (Hz)  Lower limit frequency 5.10 Base frequency  : Base frequency 1  : Base frequency voltage 1 •...
Page 89: Selecting Control Mode
5.11 Selecting control mode  : V/F control mode selection • Function With HF-320 , the V/F controls shown below can be selected. V/F constant Variable torque Automatic torque boost control *1 Sensorless vector control *1 Automatic energy saving *1 Dynamic automatic energy-saving (for fans and pumps) "Automatic torque boost": ...
Page 90 Warning: When setting the V/F control mode selection 1 parameter () to any number between  and , be sure to set at least the following parameters.  (Motor rated current): See the motor's nameplate.  (No-load current of motor): Refer to the motor test report. ...
Page 91 ★ Motor constant must be set If the motor you are using is a 4P Sumitomo AF motor and if it has the same capacity as the inverter, there is basically no need to set the motor constant. In any other case, be sure to set the parameters  to ...
Page 92 ★ Motor constant must be set If the motor you are using is a 4P Sumitomo AF motor and if it has the same capacity as the inverter, there is basically no need to set the motor constant. In any other case, be sure to set the parameters  to ...
Page 93 ★ Motor constant must be set If the motor you are using is a 4P Sumitomo AF motor and if it has the same capacity as the inverter, there is no need to set the motor constant. In any other case, be sure to set the parameters  to  prop- erly.
Page 94: Manual Torque Boost - Increasing Torque Boost At Low Speeds
5.12 Manual torque boost - increasing torque boost at low speeds  : Torque boost 1 • Function If torque is inadequate at low speeds, increase torque by raising the torque boost rate with this parameter. Base frequency voltage  ...
Page 95 ■ Parameter setting Title Function Adjustment range Default setting Motor electronic thermal pro-  10 - 100（%） tection level 1 Setting Overload Overload value protection stall × Standard × × motor Electronic-thermal protection  × characteristic selection × AF motor (inverter ×...
Page 96 ■ Setting of electronic thermal protection characteristics selection  Setting value Overload protection Overload stall  ×   × ×  × : valid, × : invalid ■ Setting of motor electronic thermal protection level 1  If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor is smaller than the rated current of the inverter, adjust the electronic thermal protection level 1 ...
Page 97 [Using a AF motor (motor for use with inverter)] ■ Setting of electronic thermal protection characteristics selection  Setting value Overload protection Overload stall  ×   × ×  × : valid, × : invalid AF motors (motors designed for use with inverters) can be used in frequency ranges lower than those for standard motors, but their cooling efficiency decreases at frequencies below 6Hz.
Page 98: Preset-Speed Operation (Speeds In 15 Steps
2) Inverter over load characteristics Set to protect the inverter unit. Cannot be changed or turned off by parameter setting. To prevent the inverter overload trip function () from being activated too easily, lower the stall preven- tion level () or increase the acceleration time () or deceleration time (). Inverter overload Time [sec] 100% = inverter rated output current...
Page 99 Preset-speed frequency setting Set the speed (frequency) of the number of steps necessary. Setting from speed 1 to speed 7 Title Funtion Adjustment range Setting value Preset-speed operation frequencies See Chapter 11, -  - (Hz) Setting from speed 8 to speed 15 Title Function Adjustment range...
Page 100 [Example of a connection diagram] (SW1 set to sink logic) Forward FR (Forward run) Reverse RR (Reverse run) Common Preset-speed 1 (DFL) Preset-speed 2 (DFM) Preset-speed 3 (DFH) Preset-speed 4 (DFHH) Using other speed commands with preset-speed command Command mode selection 0: Terminal board 1: Operation panel ...
Page 101 Output frequency  [Hz]       Time [sec] FR-COM DFL-COM DFM-COM DFH-COM Example of 7-step speed operation E-29...
Page 102: Extended Parameters
6. Extended parameters Extended parameters are provided for sophisticated operation, fine adjustment and other special purposes. Modify parameter settings as required. See Section 11, Table of extended parameters. Input/output parameters 6.1.1 Low-speed signal  : Low-speed signal output frequency • Function When the output frequency exceeds the setting of ...
Page 103 An example of the connection of the open collector DRV terminal An example of the connection of the relay output terminals...
Page 104 6.1.2 Output of designated frequency reach signal  : Speed reach detection band • Function When the output frequency becomes equal to the setting by designated frequency ±, an ON or OFF signal is generated. ■ Parameter setting of designated frequency and detection band Title Function Adjustment range...
Page 105 6.1.3 Output of set frequency speed reach signal  : Speed reach setting frequency  : Speed reach detection band • Function When the output frequency becomes equal to the frequency set by ±, an ON or OFF signal is generated. ■...
Page 106: Input Signal Selection
Input signal selection 6.2.1 Priority selection (both FR-COM, RR-COM are ON)  : Priority selection (both FR-COM, RR-COM are ON) • Function This parameter allows you to select the direction in which the motor runs when a forward run (FR) command and a reverse run (RR) command are entered simultaneously.
Page 107 [ =  (Reverse)]: If an FR command and an RR command are entered simultaneously, the motor will run in the reverse direction. Output frequency [Hz] Set frequency Forward run Time [s] Reverse run Set frequency Run forward signal Run backward signal 6.2.2 Changing the functions of VRF and VRF2 terminals ...
Page 108: Terminal Function Selection
Terminal function selection 6.3.1 Keeping an input terminal function always active (ON)  : Always-active function selection • Function This parameter specifies an input terminal function that is always to be kept active (ON). (Only one function selectable) ■ Parameter setting Title Function Adjustment range...
Page 109 Note that the setting 52 (forced operation) can be enabled only when the inverter is so configured at the factory. For more information, contact your local Sumitomo dealer. The functions of the VRF2 and VRF terminals can be selected between analog input and contact input by changing parameter settings .
Page 110 ■ Connection method 1) A-contact input Inv erter Sink s ett ing A-c ontac t s witc h Input terminal * This function is ac tiv ated when the input terminal and COM (c ommon) are s hort- c ircuited. Us e this func tion to s pec ify forward/rev ers e run or a pres et-speed operation.
Page 111 3) Sink logic/source logic input Sink logic/source logic (input/output terminal logic) switching is possible. For more details, see 2.3.2. 6.3.3 Modifying output terminal functions  : Output terminal selection 1A (RY-RC)  : Output terminal selection 2A (DRV-OM)  : Output terminal selection 3 (FA, FB, FC) ...
Page 112 (1) Assigning one function to an output terminal Terminal Title Function Adjustment range Default setting symbol  RY - RC Output terminal selection 1A 254 (Always OFF)  0-255 DRV - OM Output terminal selection 2A 14 (Run) (See section 11.) Output terminal selection 3 ...
Page 113 ☆ Only one function can be assigned to terminals FA-FB-FC at a time. (3) Assigning two functions to a group of terminals A signal is sent out when either of the two functions assigned is activated. Terminal Function Title Adjustment range Default setting symbol ...
Page 114 ■ Setting of output terminal function Terminal Title Function Adjustment range Default setting symbol  RY-RC Output terminal selection 1A 254 (Always OFF)  DRV-OM Output terminal selection 2A 14 (Run)  0-255 FL (A,B,C) Output terminal selection 3 10 (Failure FL) (See Section 11) 255 (Always ...
Page 115 6.3.4 Comparing the frequency command values  : Frequency command agreement detection range  : Frequency setting mode selection 1  : Frequency setting mode selection 2 • Function If the frequency command value specified using  (or ) almost agrees with the frequency command value from the VA terminal with an accuracy of ±...
Page 116: Basic Parameters 2
Basic parameters 2 6.4.1 Switching motor characteristics via terminal input  : Base frequency 2  : Base frequency voltage 2  : Torque boost 2  : Motor electronic-thermal protection level 2  : Stall prevention level 2 • Function Use the above parameters to switch the operation of two motors with a single inverter and to select motor V/F characteristics (two types) according to the particular needs or operation mode.
Page 117: Frequency Priority Selection
■ Setting of switching terminals The terminal for switching to motor 2 needs to be set, since this function is not assigned under the default setting. Assign this function to an idle terminal. The parameters to be switched depend on the particular identification number of the input terminal selection function.
Page 118 ■ Parameter setting Title Function Adjustment range Default setting 0: Built-in potentiometer 1: VRF 2: VRF2 3: Operation panel  Frequency setting mode selection 1 4: Serial communication 5: UP/DOWN from external contact 6: VRF + VRF2 (Override) 0:  ( Switchable to  by the input terminal) ...
Page 119 6.5.2 Setting frequency command characteristics  : VRF input point 1 setting  : VRF input point 1 frequency  : VRF input point 2 setting  : VRF input point 2 frequency  : VRF2 input point 1 setting ...
Page 120 ■ Parameter setting Title Function Adjustment range Default setting  VRF input point 1 setting 0-100 (%)  VRF input point 1 frequency 0.0-500.0 (Hz)  VRF input point 2 setting 0-100 (%)  VRF input point 2 frequency 0.0-500.0 (Hz) 60.0 ...
Page 121 6.5.3 Setting of frequency with the input from an external contact  : External contact input - UP response time  : External contact input - Up frequency steps  : External contact input - DOWN response time  : External contact input - DOWN frequency steps ...
Page 122 <<Sample sequence diagram 1: Adjustment with continuous signals>> RUN command Incrementing (UP) signal Decrementing (DOWN) signal Set frequency clearing signal Upper limit frequency Gradient　/ Gradient　/ Designated frequency (Hz) Lower limit frequency Frequency 0Hz The dotted lines represent effective output frequencies. ■...
Page 123 <<Sample sequence diagram 2: Adjustment with pulse signals>> ■ If two signals are impressed simultaneously • If a clear single and an up or down signal are impressed simultaneously, priority will be given to the clear signal. • If up and down signals are impressed simultaneously, The frequency will change at the specified up or down rate.
Page 124: Operation Frequency
■ Minimum unit of frequency adjustment If  (Frequency free unit magnification) is set to 1.00, the output frequency can be adjusted in steps of 0.11Hz. Operation frequency 6.6.1 Starting frequency  : Starting frequency setting • Function The frequency set with  is put out as soon as operation is started. Use the ...
Page 125: Dc Braking
6.6.2 Run/stop control with frequency setting signals  : Operation starting frequency  : Operation starting frequency hysteresis • Function The Run/stop of operation can be controlled simply with frequency setting signals. [Parameter setting] Title Function Adjustment range Default setting ...
Page 126 Output frequenc y [Hz] Set frequency DC braking DC brak ing starting frequency    Time [s] Output current [ A] DC brak ing current    DC brak ing time    Operation signal (FR-COM) Note: During DC braking, the overload protection sensitivity of the inverter increases. The DC braking current may be adjusted automatically to prevent tripping.
Page 127 LED displ ay Output fr equency [Hz] “  ” is displayed.  “  ” is displayed. Set fr equency   DC injection braking st art frequency Time [s] Output c urrent [A]  Operati on si gnal (FR-COM) Operati on s tandby signal (ST-COM) Note1: About the same motor shaft fixing control can be exercised by entering a DC braking command from external contacts.
Page 128: Auto-Stop In Case Of Lower-Limit Frequency Continuous Operation
Auto-stop in case of lower-limit frequency continuous operation 6.8.1 Auto-stop in case of lower-limit frequency continuous operation  : Auto-stop in case of lower-limit frequency continuous operation • Function If operation is carried out continuously at a frequency below the lower-limit frequency () for the period of time set with , the inverter will automatically slow down the motor to a stop.
Page 129: Jog Run Mode
Jog run mode  : Jog run frequency  : Jog run stopping pattern  : Panel jog run mode • Function Use the jog run parameters to operate the motor in jog mode. Input of a jog run signal fenerates a jog run frequency output at once, irrespective of the designated acceleration time.
Page 130 <Examples of jog run> RST-COM (JOG) ON + FR-COM ON: Forward jog run RST-COM (JOG) ON + RR-COM ON: Reverse jog run ( Normal operation frequency signal input + FR-COM ON: Forward run, Normal operation frequency signal input + RR-COM ON: Reverse run ) Set frequenc y Forward Rev ers e...
Page 131: Jump Frequency-Jumping Resonant Frequencies
6.10 Jump frequency - jumping resonant frequencies  : Jump frequency 1  : Jumping width 1  : Jump frequency 2  : Jumping width 2  : Jump frequency 3  : Jumping width 3 • Function Resonance due to the natural frequency of the mechanical system can be avoided by jumping the resonant frequency during operation.
Page 132: Preset-Speed Operation Frequencies
6.11 Preset-speed operation frequencies 6.11.1 Preset-speed operation frequency 8 to 15  -  : Preset-speed operation frequency 8 to 15 See Section 5.14 for details. 6.11.2 Fire-speed control  : Preset-speed operation frequency 15 (fire-speed) • Function Fire-speed control is used when operating the motor at the specified frequency in case of an emergency. If fire-speed control is assigned to the terminal board selection parameter and a fire-speed control signal is given, the motor will be operated at the frequency specified with ...
Page 133 [Parameter setting] Title Function Adjustment range Default setting  PWM carrier frequency 2.0-16.0 (kHz) (*)  Random mode 0: Disabled, 1: Enabled 0: Carrier frequency not reduced automatically 1: Carrier frequency reduced automatically Carrier frequency control mode 2: Carrier frequency not reduced ...
Page 134: Trip-Less Intensification
Default setting of PWM carrier frequency is 4kHz. Rated output current of rating label display at 4kHz. If  is set to  or , however, the carrier frequency will decrease automatically with increase in current in order to secure the rated current at frequencies of 4 kHz or less. If ...
Page 135 1) Auto-restart after momentary power failure (Auto-restart function) Input voltage Motor speed FR-COM ★ Setting  to , (): This function operates after power has been restored following detection of an undervoltage by the main circuits and control power. 2) Restarting motor during coasting (Motor speed search function) Motor speed FR-COM ST-COM...
Page 136 3) DC braking during restart When  is set to , a motor speed search is performed each time operation is started. This function is useful especially when the motor is not operated by the inverter but it is running because of external force.
Page 137 6.13.2 Regenerative power ride-through control/Deceleration stop  : Regenerative power ride-through control/Deceleration stop • Function 1) Regenerative power ride-through control continues the operation of the motor by utilizing motor regenerative energy in the event of momentary power failure. 2) Slowdown stop in the event of momentary power failure: If a momentary power failure occurs dur- ing operation, the inverter stops forcibly.
Page 138 6.13.3 Retry function  : Retry selection (Selecting the number of times) Caution • Do not go near the motor in alarm-stop status when the retry function is selected. The motor may suddenly restart, which could result in injury. • Take measures for safety, e.g. attach a cover to the motor, to prevent accidents if the motor suddenly Mandatory restarts.
Page 139 ★ Protective operation detection relay signals (FA, FB, FC terminal signals) are not sent during use of the retry function. (Default setting) ★ To allow a signal to be sent to the protective action detection relay (FA, B and C terminals) even during the retry process, assign the function 36 or 37 to .
Page 140 [Parameter setting] Title Function Adjustment range Default setting 0: Dynamic braking disabled  Dynamic braking selection 1: Dynamic braking enabled, over-load protection enabled According to  Dynamic braking resistance 1-1000 (Ω) model Dynamic braking resistor (See Section  0.01-30.00 (kW) capacity 11, K-14) 1) Connecting an external braking resistor (optional)
Page 141 Note 1: The data in Rating above refer to the resultant resistance capacities (watts) and resultant resistance values (Ω). The numeric values inside parentheses refer to the internal compositions of resistors. Note 2: Braking resistors for frequent regenerative braking are optionally available. For more information, contact your Sumitomo dealer. F-40...
Page 142 3) Minimum resistances of connectable braking resistors The minimum allowable resistance values of the externally connectable braking resistors are listed in the table below. Do not connect braking resistors with smaller resultant resistances than the listed minimum allowable resistance values. Inverter rated [200V Class] [400V Class]...
Page 143 [Parameter setting] Title Function Adjustment range Default setting 0: Enabled 1: Prohibited Overvoltage limit operation 2: Enabled (forced quick  (Slowdown stop mode selection) deceleration) 3: Enabled (dynamic quick deceleration) 200V models: 134%  Overvoltage limit operation level 100-150% 400V models: 140% ☆...
Page 144 ☆ If  is set to "" or "", the output voltage will change in proportion to the input voltage. ☆ Even if the base frequency voltage ( parameter ) is set above the input voltage, the output voltage will not exceed the input voltage. ☆...
Page 145: Drooping Control
6.13.7 Canceling the operation command  : Reverse-run prohibition • Function This function prevents the motor from running in the forward or reverse direction when it receives the wrong operation signal. [Parameter setting] Title Function Adjustment range Default setting 0: Forward/reverse run permitted ...
Page 146: Braking Setting Functions
• When the torque current is above the specified dead zone torque current, the frequency is reduced (during operation) or increased (during DC braking). • The drooping function is activated above the torque current set with . • The amount of drooping varies depending on the amount of torque current. The difference of the frequency after drooping can be calculated as follows.
Page 147 [Parameter setting] Title Function Adjustment range Default setting  PID control wait time 0-2400 [sec]  PID control 0: Disabled, 1: Enabled  Proportional gain 0.01-100.0 0.30  Integral gain 0.01-100.0 0.20  Differential (D) gain 0.00-2.55 0.00 1) External connection 2) Types of PID control interfaces Process quantity input data (frequency) and feedback input data can be combined as follows for the PID control of the HF-320α:...
Page 148 3) Setting PID control Set "" in the extended parameter  (PID control) Set parameters (acceleration time), and  (deceleration time) to their minimum values (0.1 sec.). To limit the output frequency, set parameters  (upper limit frequency) and  (lower limit frequency).
Page 149  (I-gain adjustment parameter) This parameter adjusts the integral gain level during PID control. Any deviations remaining unremoved during proportional action are cleared to zero (residual deviation offset function). A larger I-gain adjustment value reduces residual deviations. Too large an adjustment value, however, results in an unstable event such as hunting.
Page 150 5) Adjusting analog command voltages To use external analog setting (VRF2) or feedback input (VRF), perform voltage-scaling adjustments as required. See Section 6.5.2 for further details. If the feedback input data is too small, voltage-scaling adjustment data can also be used for gain adjustment. Example of VRF2 terminal setting Example of VRF terminal setting Example of VRF terminal setting...
Page 151: Setting Motor Constants
The following three methods are available to set motor constants (for automatic torque boosting, however, two methods are available): In case you use the Sumitomo 4-terminal AF motor in the same capacity as the inverter, auto-tuning is not necessary.
Page 152 [Selection 1: Setting by automatic torque boost] This is the easiest of the available methods. It conducts vector control and auto-tuning at the same time. Set the automatic torque boost  to  (Automatic torque boost + auto-tuning) Set the automatic torque boost  to  (Sensorless vector control + auto-tuning).
Page 153 ☆ Precautions on auto-tuning (1) Conduct auto-tuning only after the motor has been connected and operation completely stopped. If auto-tuning is conducted immediately after operation stops, the presence of a residual voltage may result in abnormal tuning. (2) Voltage is applied to the motor during tuning even though it barely rotates. During tuning, “”...
Page 154 Title Function Adjustment range Default setting Depends on  Motor adjustment factor 0-200 the capacity Motor electronic thermal  10-100 (%) protection level 1 Setting procedure Adjust the following parameters: : Select " " to set the motor constant independently using the - parameters. : Set the compensation gain for the slipping of the motor.
Page 155: Acceleration/Deceleration Patterns 2 And 3
1 parameter () properly accord- ing to the motor capacity. : No need to adjust (Do not change the setting, unless otherwise instructed by Sumitomo technical staff )  : If the rated capacity of the motor is one size smaller than that of the inverter, lower the thermal protective level according to the rated current of the motor.
Page 156 Linear acceleration/deceleration A general acceleration/ Output frequency [Hz] deceleration pattern. This pattern can usually be Maximum fre- quency used.  Time [s]   S-pattern acceleration/deceleration 1 Select this pattern to Output frequency [Hz] accelerate/decelerate the Maximum frequency motor rapidly to a high-speed ...
Page 157 6.18.2 Selecting an acceleration/deceleration pattern  : Acceleration time 2  : Deceleration time 2  : Acceleration/deceleration 2 pattern : Selecting an acceleration/deceleration pattern  : Acceleration/deceleration 1 and 2 switching frequency  : Acceleration time 3  : Deceleration time 3 ...
Page 158 Selection using parameters Output frequency [Hz]    Time [s] ＝   ＝   ＝ Acceleration/deceleration time 1 is initially set as the default. Acceleration/deceleration time 2 and 3 can be selected by changing the setting of the . Enabled if =...
Page 159 (1) Acceleration at the gradient corre- (4) Deceleration at the gradient corre- sponding to acceleration time  sponding to deceleration time  (2) Acceleration at the gradient corre- (5) Deceleration at the gradient corre- sponding to acceleration time  sponding to deceleration time  (3) Acceleration at the gradient corre- (6) Deceleration at the gradient corre- sponding to acceleration time ...
Page 160 ■ How to set parameters a) Operating method: Terminal input Set the operation control mode selection  to . b) Use the DFM and DFH terminals for switching. (Instead, other terminals may be used.) DFM: Acceleration/deceleration switching signal 1 DFH: Acceleration/deceleration switching signal 2 Title Function Adjustment range...
Page 161: Protection Functions
6.19 Protection functions 6.19.1 Setting motor electronic thermal protection  : Motor electronic thermal protection level 1  : Motor 150%-overload time limit • Function This parameter allows selection of the appropriate electronic thermal protection characteristics according to the particular rating and characteristics of the motor. ■...
Page 162 [Display during operation of the stall prevention] During an  alarm status, (that is , when there is a current flow in excess of the stall prevention level), the output frequency changes. At the same time, to the left of this value, "" is displayed flashing on and off.
Page 163 6.19.4 Emergency stop : Emergency stop  : Emergency DC braking time • Function These parameters allow you to specify how to stop operation using an external control device when an external trip occurs. When operation is stopped, the trip  and the FL relay also are activated. When setting ...
Page 164 6.19.5 Output phase failure detection  : Output phase failure detection mode selection • Function This parameter detects inverter output Phase failure. If the Phase failure status persists for one second or more, the tripping function and the FL relay will be activated. At the same time, a trip information ...
Page 165 6.19.6 Input phase failure detection  : Input phase failure detection mode selection • Function This parameter detects inverter input Phase failure. If the abnormal voltage status of main circuit capacitor persists for few minutes or more, the tripping function and the FL relay will be activated. Therefore, input phase failures cannot always be detected.
Page 166 6.19.7 Control mode for small current  : Small current trip/alarm selection  : Small current detection current  : Small current detection time • Function The f610 parameter allows the inverter to be tripped if a current smaller than the -specified value flows for more than the -specified time.
Page 167 6.19.8 Detection of output short-circuit  : Detection of output short-circuit during start-up • Function This parameter detects inverter output short-circuit. It can be usually detected in the length of the standard pulse. When operating low-impedance motor such as high-speed motor, however, the short- time pulse should be selected.
Page 168 6.19.9 Over-torque trip  : Over-torque trip/alarm selection  : Over-torque detection level  : Over-torque detection time  : Over-torque detection level hysteresis • Function Use the  parameter to trip the inverter or to output the alarm if a torque currrent exceeding the -specified level flows for more than the -specified time.
Page 169 <Example of operation> 1) Output terminal function: 12 (OT) Over-torque detection = (Alarm only) Over-torque signal output less than    － Torque current (%) Time [sec] When  =  (tripping), the inverter will trip if over-torque lasts for the period of time set with .
Page 170 6.19.10 Cumulative operation time alarm setting  : Cumulative operation time alarm setting • Function This parameter allows you to set the inverter so that it will put out an alarm signal after a lapse of the cumulative operation time set with . "0.1"...
Page 171 6.19.12 Undervoltage trip  : Undervoltage trip/alarm selection • Function This parameter is used for selecting the control mode when an undervoltage is detected. Trip information is displayed as "". =: The inverter is stopped. However, it is not tripped (Failure signal FL not activated). The inverter is stopped when the voltage does not exceed 60 % or less of its rating.
Page 172 6.19.13 Trip at VRF low level input mode  : Trip at VRF low level input mode • Function The inverter will trip if the VRF value remains below the specified value for about 0.3 seconds. In such a case, "" is displayed. =0: Disabled ..
Page 173: Adjustment Parameters
6.20 Adjustment parameters 6.20.1 Pulse train output for meters  : Logic output/pulse train output selection (DRV-OM)  : Pulse train output function selection (DRV-OM)  : Maximum nembers of pulse train • Function Pulse trains can be sent out through the DRV-OM output terminals. To do so, it is necessary to select a pulse output mode and specify the number of pulses.
Page 174 6.20.2 Calibration of analog outputs  : Inclination characteristic of analog output  : Bias of analog output • Function Output signals from FRQ terminals are analog voltage signals. Their standard setting range is from 0 to 7.5Vdc. Using the FRQ slide switch in the inverter, you can switch to 0-20mA output. Also, using these parameters, you can calibrate the output to 4-20mAdc or 20-4mAdc.
Page 175: Operation Panel Parameter
6.21 Operation panel parameter 6.21.1 Prohibition of key operations and parameter settings  : Prohibition of change of parameter setting  : Prohibition of panel operation (FC)  : Prohibition of panel operation (RUN/STOP keys)  : Prohibition of panel emergency stop operation ...
Page 176 6.21.2 Changing the display unit to A/V/min  :Current/voltage display mode • Function These parameters are used to change the unit of monitor display. % ⇔ A (ampere)/V (volt) ■ Example of setting During the operation of the VFS11-2037PM (rated current: 17.5A) at the rated load (100% load), units are displayed as follows: 1) Display in percentage terms 2) Display in amperes/volts...
Page 177 6.21.3 Displaying the rotational speed of the motor or the line speed  : Frequency free unit magnification  : Inclination characteristic of free unit display  : Bias of free unit display • Function The frequency or any other item displayed on the monitor can be converted freely into the rotational speed of the motor, the operating speed of the load, and so on.
Page 178 Title Function Adjustment range Default setting 0.00: Free unit display disabled (display of Frequency free unit  frequency) 0.00 magnification 0.01-200.0 Inclination 0: Negative inclination (downward slope)  characteristic of free 1: Positive inclination (upward slope) unit display Bias of free unit ...
Page 179 6.21.4 Changing the steps in which the value displayed changes  : Free step 1 (pressing a panel key once)  : Free step 2 (panel display) • Function These parameters are used to specify steps in which the command value or standard monitor output frequency displayed on the panel changes each time you press the up or down key to set a fre- quency on the operation panel.
Page 180 ■ Example of setting 2 When =1.00 (Hz), and =1: key, the frequency setting  changes in steps of 1Hz: 0→ 1 → 2 → ... → 60 ▲ Each time you press the (Hz) and also the value displayed on the operation panel changes in steps of 1. Use these settings to hide decimal fractions and also the value displayed on the operation panel changes in steps of 1.
Page 181 6.21.6 Canceling the operation command  : Canceling of operation command when standby terminal (ST) is turned • Function When the standby (ST) terminal is turned off during panel operation, the inverter will restart operation if the ST terminal is turned back on. Using this parameter, you can also set the inverter so that, even if the ST is turned back on, it will not restart operation until you press the RUN key.
Page 182: Communication Function (Common Serial
6.22 Communication function (Common serial) 6.22.1 Setting of common function  : Data transfer speed  : Parity  : Inverter number  : Communication error trip time  : Communication waiting time  : Inter-drive communication  : Point # 1 setting ...
Page 183 Refer to the COMMUNICATIONS EQUIPMENT USER'S MANUAL (under preparation) details. • Function Function The HF-320α Series allows a data communication network to be constructed for exchanging data between a host computer or controller (referred to collectively as the computer) and the inverter by connecting an optional RS232C or RS485 communication conversion unit.
Page 184 Title Function Adjustment range Default setting 0: Slave inverter (0 Hz command issued in case the master in- verter fails) 1: Slave inverter (Operation con- tinued in case the master in- Setting of master and slave verter fails) inverters  2: Slave inverter (Emergency stop for communications between tripping in case the master in-...
Page 185 6.22.2 Using the RS232C/RS485 ■ Setting the communication functions Setting commands and frequencies by communications has priority over sending commands from the operation panel or the terminal board. Command/frequency setting by communications can therefore be enabled, irrespective of the setting in the command mode () or the frequency setting mode (). When inverters are connected to each others, however, in order for slave inverters to recognize frequency signals from the master inverter as frequency commands, the frequency setting mode selection 1 parameter () provided for each slave inverter needs to be set to 4 (serial communications).
Page 186 ■ Example of connection for RS485-communication <Example of connection> Host computer Option HF-320 α HF-320 α HF-320 α HF-320 α <Independent communication> Perform computer-inverter connection as follows to send operation frequency commands from the host computer to inverter No. 3: ～...
Page 187: Parameters For Options
6.23 Parameters for options  : Parameter for option 1  : Parameter for option 2  : Parameter for option 3  : Parameter for option 4  : Parameter for option 5 These parameters can be used only when specific optional parts are installed. Do not use these parameters unless such parts are installed.
Page 188: Applied Operation
7. Applied operation Setting the operation frequency Applied operation can be performed by selecting the inverter frequency setting. To make settings for applied op- eration, use the basic parameter  (selection of frequency setting mode 1), and the extended parameters ...
Page 189 (3) External potentiometer setting (4) Input voltage setting (0 to 10 Vdc) VRF2 VRF2 Voltage signal STOP STOP RESET RESET :  :  :  :  Use the parameters  to  for this Use the parameters  to  for this setting.
Page 190 (7) Preset-speed (8) Voltage/current switching DFL (FCHG) Current signal VRF2 VRF2 STOP Voltage signal STOP RESET RESET :  (Terminal board) :  (Automatic switching)  to : 1-7-speed run :  (Forced switching of FCHG)  to : 8-15-speed run : ...
Page 191 (11) Switching between analog setting and preset (12) Switching between analog setting and terminal speed setting setting from the operation panel RST (FCHG) Voltage/current Voltage/current signal signal VRF2 VRF2 Voltage STOP Voltage STOP RESET RESET signal signal :  (VRF) or  (VRF2) : ...
Page 192: Setting The Operation Mode
Setting the operation mode Applied operation can be performed by selecting the operation mode. To set the operation mode, use the basic parameter  (command mode selection) and the input terminal selection parameter. Operation panel operation Terminal board operation VRF2 VRF2 STOP STOP...
Page 193 (3) Three-wire operation (one-touch operation) You can carry out operation by simply pressing the ON/OFF button. Note 1 : To carry out three-wire operation, set  to  (ST) and  to  (terminal board). Select one input terminal, and set to HD (operation holding).
Page 194 　 Output frequency Operation Forward run frequency command Operation frequency Reverse run command Powered Note 3 Note 2 Operation from an external input device Switching from an external input device to the ter- minal board DFL (SC/LC) VRF2 VRF2 STOP STOP RESET RESET...
Page 195 Switching from the operation panel to the terminal board DFM (CMTP) VRF2 STOP RESET : : (Allocation of CMTP) To switch to terminal board operation, use the external CMTP input.
Page 196: Monitoring The Operation Status
8. Monitoring the operation status Status monitor mode 8.1.1 Status monitor under normal conditions In this mode, you can monitor the operation status of the inverter. To display the operation status during normal operation: Press the key twice. Setting procedure (eg. operation at 60Hz) Communi- Item displayed Description...
Page 197 (Continued) Communi- Item displayed Description operated display cation No. The ON/OFF status of each of the control signal input terminals (FR, RR, RST, DFL, DFM, DFH, VRF2 and VRF) is displayed in bits.  ON:   OFF:   Input terminal FE06 Note 4...
Page 198 (Continued) Communi- Item displayed Description operated display cation No.  ⇔ Note 7 Past trip 4 FE13 Past trip 4 (displayed alternately) The ON/OFF status of each of the cooling fan, cir- cuit board capacitor, main circuit capacitor or life alarm of cumulative operation time is displayed in bits.
Page 199 8.1.2 Display of detailed information on a past trip Details on a past trip (of trips 1 to 4) can be displayed, as shown in the table below, by pressing the when the trip record is selected in the status monitor mode. Unlike the "Display of detailed trip information at the occurrence of a trip"...
Page 200 Note 1: Press the key to change items displayed in the status monitor mode. Note 2: You can switch between % and A (ampere)/V (volt), using the parameter  (current/voltage unit selection). Note 3: The input (DC) voltage displayed is 1 2 times as large as the rectified d.c. input voltage. Note 4: The number of bars displayed varies depending on the setting of ...
Page 201: Display Of Trip Information
Display of trip information 8.2.1 Trip code display If the inverter trips, an error code is displayed to suggest the cause. Since trip records are retained, information on each trip can be displayed anytime in the status monitor mode. ■ Display of trip information Failure Error code Description...
Page 202 (Continued) Failure Error code Description code  0025 Overcurrent flowing in element during acceleration  0026 Overcurrent flowing in element during deceleration  0027 Overcurrent flowing in element during constant-speed operation  0054 Auto-tuning error  0029 Inverter type error ...
Page 203 (Continued) Communi- Item displayed Description operated display cation No. The torque at the occurrence of a trip (%) is  Torque FE18 displayed. The torque current (%/A) at the occurrence of a  Torque current FE20 trip is displayed. The inverter load factor (%) at the occurrence of a ...
Page 204 (Continued) Communi- Item displayed Description operated display cation No. The integrated amount of power (kWh) supplied to Integral input  FE76 the inverter is displayed. power (0.01=1kWh, 1.00=100kWh) The integrated amount of power (kWh) supplied Integral output  FE77 from the inverter is displayed. power (0.01=1kWh, 1.00=100kWh) The inverter rated current (A) at the occurrence of...
Page 205 If  = 0: The bar representing DRV-OM is displayed. If  = 1: The bar representing DRV-OM is not displayed. Note 6: The integrated amounts of input and output power will be reset to zero, if you press and hold down the key for 3 seconds or more when power is off or when the input terminal function CKWH (input ter- minal function: 51) is turned on or displayed.
Page 206: Taking Measures To Satisfy The Ce Directive
The CE mark must be put on every final product that includes an inverter(s) and a motor(s). The HF-320α series of inverters complies with the EMC directive if an EMI filter recommended by Sumitomo is connected to it and wir- ing is carried out correctly.
Page 207 Table 1 EMC standards Product stan- Category Subcategory Test standard and level dards Radiation noise CISPR/B/276/DC Class A Group 1 Emission Transmission noise CISPR/B/276/DC Class A Group 1 Static discharge IEC61000-4-2 Radioactive radio-frequency mag- IEC61000-4-3 netic contactor field IEC 61800-3 First transient burst IEC61000-4-4 Immunity...
Page 208 Table 2 Combinations of inverter and EMI filter Three-phase 200V class Combination of inverter and filter Inverter Transmission noise Transmission noise CISPR/B/276/DC Class A Group 1 EN55011 Class B Group 1 Applicable filters Applicable filters (Length of motor connecting cable: (Length of motor connecting cable: Max.
Page 209 Install the inverter and the filter on the same metal plate. It is more effective in limiting the radiation noise to install the inverter in a sealed steel cabinet. Using wires as thick and short as possible, earth the metal plate and the control panel securely with a distance kept between the earth cable and the power cable.
Page 210 9.1.3 About the low-voltage directive The low-voltage directive provides for the safety of machines and systems. The HF-320α series of inverters are CE-marked in accordance with the standard EN 50178 specified by the low-voltage directive, and can therefore be installed in machines or systems and imported without problem to European countries. Applicable standard: EN50178 Electronic equipment for use in power installations Electronic equipment for use in power installations...
Page 211: Peripheral Devices
10. Peripheral devices Danger • When using switchgear for the inverter, it must be installed in a cabinet. Failure to do so can lead to risk of electric shock and can result in death or serious injury. Mandatory • Connect earth cables securely. Failure to do so can lead to risk of electric shock or fire in case of a failure or short-circuit or electric leak.
Page 212 ■ Selection of wiring devices Non-fuse circuit breaker Earth leakage breaker Magnetic contactor Capacity of (MCCB) Note 3) (ECLB) (MC) applicable made by Mitsubishi Elec. made by Mitsubishi Elec. made by Fuji Elec. Voltage class Inverter model motor Rated Type Rated Type Type...
Page 213: Installation Of A Magnetic Contactor
10.2 Installation of a magnetic contactor If using the inverter without installing a magnetic contactor (MC) in the primary circuit, use an MCCB (with a power cutoff device) to open the primary circuit when the inverter protective circuit is activated. If using a braking resistor or braking resistor unit, install a magnetic contactor (MC) or non-fuse circuit breaker with a power cutoff device to the power supply of the inverter, so that the power circuit opens when the failure de- tection relay (FL) in the inverter or the external overload relay is activated.
Page 214: Installation Of An Overload Relay
() and appropriate to the motor used should be installed between the inverter and the motor. • When using a motor with a current rating different to that of the corresponding Sumitomo general- purpose motor • When operating a single motor with an output smaller than that of the applicable standard motor or more than one motor simultaneously.
Page 215: Optional External Devices
10.4 Optional external devices The following external devices are optionally available for the HF-320α series of inverters. MCCB (1) Input AC reactor (3) LC noise filter (4) Zero-phase reactor (2) DC reactor HF-320α (6) Braking resistor PR (4) Zero-phase reactor Motor...
Page 216 Optional external devices Device Function and purpose Input AC reactor Used to improve the input power factor, reduce the harmonics, and suppress external surge on the inverter power source side. Install when the power capacity is 200 kVA or more and 10 times or more than the inverter capacity or when a distorted wave generation source such as a thyristor unit or a large-capacity inverter is connected in the same distribution system.
Page 217 Device Function and purpose Copy unit Note 1) Use this unit for batch read, batch copy, and batch writing of setting parameters. (Model: OS-33) Remote operator Note 1) Extended operation panel kit provided with LED indication section, RUN/STOP key, UP/DOWN key, Monitor key, and Enter key. (Model: OS-32) Internal RS485 This unit allows you to connect a personal computer to multiple inverters for data transfer.
Page 218: Table Of Parameters And Data
11. Table of parameters and data 11.1 User parameters Minimum set- ting unit User Refer- Title Function Unit Adjustment range Default setting Panel/Comm setting ence unication -  Operation fre- 0.1/0.01 quency of opera- tion panel 11.2 Basic parameters • Four automatic functions or basic parameters Minimum Communication setting unit...
Page 219 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0005 Meter selection 0: Output frequency 1: Output current 2: Set frequency 3: DC voltage 4: Output voltage command value 5: Input power 6: Output power 7: Torque 8: Torque current...
Page 220 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0015 V/F control mode 0: V/F constant 5.11 selection 1 1: Variable torque 2: Automatic torque boost control 3: Sensorless vector control 4: Automatic energy-saving 5: Dynamic automatic energy-saving (for fans and pumps) 6: (Use is impossible)l...
Page 221: Extended Parameters
11.3 Extended parameters • Input/output parameters Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0100 Low-speed signal 0.1/0.01 0.0- 6.1.1 output frequency  0101 Speed reach 0.1/0.01 0.0- 6.1.3 setting frequency ...
Page 222 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference setting setting Panel/Commun ication 0:  and   0139 Output terminal 6.3.3 ...
Page 223 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0210 VRF2 input point 1 0-100 6.5.2 setting  0211 VRF2 input point 1 0.1/0.01 0.0-500.0 frequency  0212 VRF2 input point 2 0-100 setting ...
Page 224 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0273 Jumping width 2 0.1/0.01 0.0-30.0  0274 Jump frequency 3 0.1/0.01 0.0- 6.10  0275 Jumping width 3 0.1/0.01 0.0-30.0 -  0287 Preset-speed 60.0...
Page 225 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0307 Supply voltage 0: Supply voltage uncorrected, output 6.13.6 correction voltage limited (limitation of 1: Supply voltage corrected, output output voltage) voltage limited 2: Supply voltage uncorrected, output voltage unlimited 3: Supply voltage corrected, output...
Page 226 • Torque boost parameters Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0400 Auto-tuning 6.17 0: Auto-tuning disabled 1: Initialization of  (reset to 0) 2: Auto-tuning enabled (after execution: 0) ...
Page 227 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0507 S-pattern upper- 0-50 6.18 limit adjustment amount  0510 Acceleration time 0.1/0.1 0.0-3200 10.0  0511 Deceleration time 0.1/0.1 0.0-3200 10.0  0512 Accelera- 0: Linear...
Page 228 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0619 Over-torque 0-100 6.19.9 detection level hysteresis  0621 Cumulative 0.1/0.1 0.0-999.9 6.19.10 operation time Time (=10 hours) alarm setting  0626 Over-voltage stall 100-150 6.13.5 protection level...
Page 229 • Operation panel parameters Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0700 Prohibition of 0: Permitted 6.21.1 change of 1: Prohibited parameter settings  0701 Unit selection 0: % 6.21.2 1: A (ampere)/V (volt) ...
Page 230 • Communication parameters Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0800 Communication 0: 1200bps 6.22 band speed 1: 2400bps 2: 4800bps 3: 9600bps 4: 19200bps  0801 Parity 0: NON (No parity) 1: EVEN (Even parity) 2: ODD (Odd parity) ...
Page 231 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0892 Parameter for op- 0-65535 6.23 tion 3  0893 Parameter for op- 0-65535 6.23 tion 4  0894 Parameter for op- 0-65535 tion 5 ...
Page 232 ■ Table of input terminal functions 1 Function Code Function Action No function is assigned Disabled Standby terminal ON: Ready for operation, OFF: Coast stop (gate off) Forward run command ON: Forward run OFF: Slowdown stop Reverse run command ON: Reverse run OFF: Slowdown stop Jog run mode ON: Jog run, OFF: Jog run canceled Acceleration/deceleration 2 pattern selection...
Page 233 ■ Table of input terminal functions 2 Function Code Function Action FR+DFH+ Combination of forward run, preset-speed ON: Simultaneous input from FR, DFH and AD2 command 3 and acceleration/deceleration 2 RR+DFH+ Combination of reverse run, preset-speed ON: Simultaneous input from RR, DFH and AD2 command 3 and acceleration/deceleration 2 FR+DFHH+ Combination of forward run, preset-speed...
Page 234 ■ Table of input terminal functions 3 Function Code Function Action Inversion of ST (coasting) ON: Coast stop (gate off) OFF: Ready for operation RSTN Inversion of RES ON: Acceptance of reset command OFF→ ON: Trip reset FR+ST Combination of forward run and standby ON: Simultaneous input from FR and ST RR+ST Combination of reverse run and standby...
Page 235 ■ Table of output terminal functions 2 Function Code Function Action Over-torque detection ON: Torque current is equal to or larger than  set value and longer than  set time. OFF: The torque current is equal to or less than (...
Page 236 ■ Table of output terminal functions 3 Function Code Function Action FCVRF2N Inversion of frequency VRF2 selection Inversion of FCVRF2 Fault signal (put out also at the time of a retry) ON: When inverter trips or retries OFF: When inverter does not trip or retry FLRN Inversion of failure signal (put out also at the time Inversion of FLR...
Page 237 ■ Order of precedence of combined functions XX: Impossible combination, X: Invalid, + : Valid under some conditions, O: Valid, @: Priority 6/9 10 11 50 13 14 15 46 48 41 43 49 38 39 40 52 53 Function No. / Function Standby @ @ @ @ @ O O @ O...
Page 238: Specifications
12. Specifications 12.1 Models and their standard specifications ■ Standard specifications (11kW and 15kW models are under development now) Item Specification Input voltage 3-phase 200V Applicable motor (kW) 0.75 Type HF3212- Form Capacity (kVA) Note 1) Rated output/current 11.0 17.5 27.5 (A) Note 2) (1.5)
Page 239 ■ Common specification Item Specification Control system Sinusoidal PWM control Rated output voltage Adjustable within the range of 50 to 600V by correcting the supply voltage (not adjustable above the input voltage) Output frequency range 0.5 to 500.0Hz, default setting: 0.5 to 80Hz, maximum frequency: 30 to 500Hz Minimum setting steps of 0.1Hz: operation panel setting, 0.2Hz: analog input (when the max.
Page 240 <Continued> Item Specification Protective function Stall prevention, current limitation, over-current, output short circuit, over-voltage, over-voltage limitation, undervolt- age, ground fault, power supply phase failure, output phase failure, overload protection by electronic thermal func- tion, armature over-current at start-up, load side over-current at start-up, over-torque, undercurrent, overheating, cumulative operation time, life alarm, emergency stop, braking resistor over-current/overload, various pre-alarms Electronic thermal charac- Switching between standard motor and constant-torque AF motor, switching between motors 1 and 2, setting of...
Page 241: Outside Dimensions And Mass
12.2 Outside dimensions and mass ■ Outside dimensions and mass Applicable motor Dimensions (mm) Approx. weight Voltage class Inverter type Drawing (kW) (kg) HF321S-A20 HF321S-A40 121.5 1-phase 200V 0.75 HF321S-A75 HF321S-1A5 HF321S-2A2 HF3212-A20 HF3212-A40 121.5 0.75 HF3212-A75 HF3212-1A5 HF3212-2A2 3-phase 200V HF3212-3A7 HF3212-5A5 HF3212-7A5...
Page 242 ■ Outline drawing...
Page 244: Before Making A Service Call - Trip Information And Remedies
13. Before making a service call - Trip information and remedies 13.1 Trip causes/warnings and remedies When a problem arises, diagnose it in accordance with the following table. If it is found that replacement of parts is required or the problem cannot be solved by any remedy described in the table, contact your dealer.
Page 245 (Continued) Error code Failure code Problem Possible causes Remedies  • The imput voltage fluctuates abnormally. • Insert a suitable input reactor. 000A Overvoltage during acceleration (1) The power supply has a capacity of 200kVA or more. (2) A power factor improvement capacitor is opened or closed.
Page 246 (Continued) Error code Failure code Problem Possible causes Remedies  • An external thermal trip is input. • Check the external thermal input. 002E External thermal trip  • During automatic operation or remote op- • Reset the inverter. 0011 Emergency stop eration, a stop command is entered from the operation panel or a remote input de-...
Page 247 [Alarm information] Each message in the table is displayed to give a warning but does not cause the inverter to trip. Error code Problem Possible causes Remedies  • The ST-COM circuit is opened. • Close the ST-COM circuit. ST terminal OFF ...
Page 248 [Prealarm display] Same as  (overcurrent)  Overcurrent alarm Same as  (overvoltage)  Overvoltage alarm Same as  and  (overload)  Overload alarm Same as  (overheat)  Overheat alarm If two or more problems arise simultaneously, one of the following alarms appears and blinks. , , ...
Page 249: Restoring The Inverter From A Trip
13.2 Restoring the inverter from a trip Do not reset the inverter when tripped because of a failure or error before eliminating the cause. Resetting the tripped inverter before eliminating the problem causes it to trip again. The inverter can be restored from a trip by any of the following operations: (1) By turning off the power (Keep the inverter off until the LED turns off.) Note) Refer to 6.15.3 (inverter trip retention selection ) for details.
Page 250: If The Motor Does Not Run While No Trip Message Is Displayed
13.3 If the motor does not run while no trip message is displayed ... If the motor does not run while no trip message is displayed, follow these steps to track down the cause. YES: The motor does not run. NO : Is the 7-segment LED Check the power supply and the MCCB.
Page 251: How To Determine The Causes Of Other Problems
13.4 How to determine the causes of other problems The following table provides a listing of other problems, their possible causes and remedies. Problems Causes and remedies • The motor runs in the Invert the phases of the output terminals U, V and W. •...
Page 252 How to cope with parameter setting-related problems • If you forget parameters You can search for all reset parameters and change their settings. which have been reset Refer to 4.1.3 for details. • If you want to return all You can return all parameters which have been reset to their default settings. reset parameters to their Refer to 4.1.6 for details.
Page 253: Inspection And Maintenance
14. Inspection and maintenance Danger • The equipment must be inspected every day. If the equipment is not inspected and maintained, errors and malfunctions may not be discovered which could lead to accidents. • Before inspection, perform the following steps. (1) Shut off all input power to the inverter.
Page 254: Periodical Inspection
■ Check points 1. Something unusual in the installation environment 2. Something unusual in the cooling system 3. Unusual vibration or noise 4. Overheating or discoloration 5. Unusual odor 6. Unusual motor vibration, noise or overheating 7. Adhesion or accumulation of foreign substances (conductive substances) 14.2 Periodical inspection Make a periodical inspection at intervals of 3 or 6 months depending on the operating conditions.
Page 255 (Note) Before an insulation test, always disconnect all cables from the main circuit terminal board and test the inverter separately from other equipment.. R/L 1 S/L 2 T/L 3 U/T 1 V/T 2 W/T 3 500V (megger) 7. Never test the inverter for pressure. A pressure test may cause damage to its components. 8.
Page 256: Making A Call For Servicing
<Criteria for appearance check> • Absence of liquid leak • Safety valve in the depressed position • Measurement of electrostatic capacitance and insulation resistance Note: When it becomes necessary to replace expendable parts, contact your nearest branch office or sales office.
Page 257: Keeping The Inverter In Storage
14.4 Keeping the inverter in storage Take the following precautions when keeping the inverter in storage temporarily or for a long period of time. Store the inverter in a well-ventilated place away from heat, damp, dust and metal powder. If the printed circuit board in your inverter has an anti-static cover (black cover), do not leave it detached from the circuit board during storage.
Page 258: Warranty
15. Warranty Warranty policy on inverter Warranty The warranty period is 18 months from date of shipment or 12 months after initial opera- period tion, whichever comes first. In the event that any problem or damage to the Product arises during the “Warranty Pe- riod”...
Page 259: Disposal Of The Inverter
16. Disposal of the inverter Warning • When disposing the inverter, have it done by a specialist in industry waste disposal(*). Disposing the inverter by yourself may result in explosion of capacitor or produce noxious gases, resulting in injury. (*) Persons who specialize in the processing of waste and known as "industrial waste product collectors and transporters"...