Hitachi SJ700-2 Series Service Manual
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Hitachi SJ700-2 Series Service Manual

Hitachi SJ700-2 Series Service Manual

Hitachi inverter service manual
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HITACHI INVERTER
SJ700-2 SERIES

SERVICE MANUAL

After reading this manual, keep it handy for future reference.
NTS204X

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Summary of Contents for Hitachi SJ700-2 Series

  • Page 1: Service Manual

    HITACHI INVERTER SJ700-2 SERIES SERVICE MANUAL After reading this manual, keep it handy for future reference. NTS204X...
  • Page 2 Revision History Revision content Date of issue Manual code First edition Octover 2007 NTS204X - The current edition of this Instruction Manual also includes some corrections of simple misprints, missing letters, misdescriptions and certain added explanations other than those listed in the above Revision History table.

  • Page 3: Table Of Contents

    Table of contents Chapter 1 Investigation of the inverter Spesification label(Model name,manufacturing number:MFG) ················································1 - 1 1.1.1 Model name, ················································································································1 - 1 1.1.2 MFG number················································································································1 - 1 Precautions for Data Setting·····································································································1 - 2 1.2.1 Monitor Mode···············································································································1 - 2 1.2.2 Function Mode·············································································································1 - 3 1.2.3 Extended Function Mode ····························································································1 - 4 Code display system and key operations ·················································································1 - 20...
  • Page 4 Appendix Circuit Diagram····························································································································6 - 1 Internal block diagram ·················································································································6 - 2 Structure figure ····························································································································6 - 15...

  • Page 5: Chapter 1 Investigation Of The Inverter

    Model: SJ700-150HFF2 kW/(HP): 15/(20) Input/Entree: 50Hz,60Hz 50Hz,60Hz Output/Sortie: 0 -400Hz MFGNo. 77AAT12345 A 001 Hitachi Industrial Equipment Systems Co.,Ltd. Figure 1-2 Contents of the specifications label 2:type2 F:with EMC filter F:with digital operator L:3Ø200V class H:3Ø400V class Applicable motor(150:15kW) Serial No.(001-999) Year of production(7:2007) Production No.

  • Page 6: Precautions For Data Setting

    1.2 Precautions for Data Setting The default display mode limits the screens (parameters) that can be displayed on the monitor. To enable the display of all parameters, specify "00" (full display) for the function code display restriction (b037). To enable the parameters to be changed while the inverter is operating, specify "10" for the software lock mode selection (b031).

  • Page 7: Function Mode

    Code Function name d025 User monitor 0 d026 User monitor 1 d027 User monitor 2 d028 Pulse counter d029 Position setting monitor d030 Position feedback monitor d080 Trip Counter Trip monitoring 1 d081 Trip monitoring 2 d082 Trip monitoring 3 d083 Trip monitoring 4 d084...

  • Page 8: Extended Function Mode

    1.2.3 Extended Function Mode Code Function name Frequency source setting 00 (keypad potentiometer) (*1), 01 (control circuit terminal block), 02 (digital A001 operator), 03 (RS485), 04 (option 1), 05 (option 2), 06 (pulse-string input), 07 (easy sequence), 10 (operation function result) Run command source setting 01 (control circuit terminal block), 02 (digital operator), 03 (RS485), 04 (option A002...
  • Page 9 Code Function name A041 Torque boost method selection 00 (manual torque boost), 01 (automatic torque boost) Torque boost method selection, A241 00 (manual torque boost), 01 (automatic torque boost) 2nd motor A042 Manual torque boost value 0.0 to 20.0 (%) Manual torque boost value, 2nd A242 0.0 to 20.0 (%)
  • Page 10 Code Function name A081 AVR function select 00 (always on), 01 (always off), 02 (off during deceleration) 200 V class: 200, 215, 220, 230, 240 (V) A082 AVR voltage select 400 V class: 380, 400, 415, 440, 460, 480 (V) A085 Operation mode selection 00 (normal operation), 01 (energy-saving operation), 02 (fuzzy operation)
  • Page 11 Code Function name 00 (tripping), 01 (starting with 0 Hz), 02 (starting with matching frequency), 03 b001 Selection of restart mode (tripping after deceleration and stopping with matching frequency), 04 (restarting with active matching frequency) Allowable under-voltage power b002 0.3 to 25.0 (s) failure time b003 Retry wait time before motor restart 0.3 to 100.0 (s)
  • Page 12 Code Function name b034 Run/power-on warning time 0. to 9999. (0 to 99990), 1000 to 6553 (10000 to 655300) (hr) 00 (enabling both forward and reverse rotations), 01 (enabling only b035 Rotational direction restriction forward rotation), 02 (enabling only reverse rotation) 0 (minimum reduced voltage start time) to 255 (maximum reduced voltage b036 Reduced voltage start selection...
  • Page 13 Code Function name Cumulative input power data b078 Clearance by setting "01" and pressing the STR key clearance Cumulative input power display b079 1. to 1000. gain setting b082 Start frequency adjustment 0.10 to 9.99 (Hz) b083 Carrier frequency setting 0.5 to 15.0 (kHz) (subject to derating) Initialization mode (parameters or 00 (clearing the trip history), 01 (initializing the data),...
  • Page 14 Code Function name 01 (RV: Reverse RUN), 02 (CF1: Multispeed 1 setting), 03 (CF2: Multispeed 2 C001 Terminal [1] function (*2) setting), 04 (CF3: Multispeed 3 setting), 05 (CF4: Multispeed 4 setting), 06 (JG: Jogging), 07 (DB: external DC braking), 08 (SET: Set 2nd motor data), 09 (2CH: C002 Terminal [2] function 2-stage acceleration/deceleration), 11 (FRS: free-run stop), 12 (EXT: external trip),...
  • Page 15 Code Function name C021 Terminal [11] function 00 (RUN: running), 01 (FA1: constant-speed reached), 02 (FA2: set frequency overreached), 03 (OL: overload notice advance signal (1)), 04 C022 Terminal [12] function (OD: output deviation for PID control), 05 (AL: alarm signal), 06 (FA3: set C023 Terminal [13] function frequency reached), 07 (OTQ: over-torque), 08 (IP: instantaneous power...
  • Page 16 Code Function name Low-current indication signal 00 (output during acceleration/deceleration and constant-speed operation), C038 output mode selection 01 (output only during constant-speed operation) Low-current indication signal C039 0.0 to 2.00 x "rated current" (A) detection level 00 (output during acceleration/deceleration and constant-speed operation), C040 Overload signal output mode 01 (output only during constant-speed operation)
  • Page 17 Code Function name C111 Overload setting (2) 0.0 to 2.00 x "rated current" (A) C121 [O] input zero calibration 0. to 9999., 1000 to 6553 (10000 to 65530) C122 [OI] input zero calibration 0. to 9999., 1000 to 6553 (10000 to 65530) C123 [O2] input zero calibration 0.
  • Page 18 00 (disabling auto-tuning), 01 (auto-tuning without rotation), 02 (auto-tuning H001 Auto-tuning Setting with rotation) 00 (Hitachi standard data), 01 (auto-tuned data), H002 Motor data selection, 1st motor 02 (auto-tuned data [with online auto-tuning function]) 00 (Hitachi standard data), 01 (auto-tuned data),...
  • Page 19 Code Function name H050 PI proportional gain for 1st motor 0.0 to 999.9, 1000. H250 PI proportional gain for 2nd motor 0.0 to 999.9, 1000. H051 PI integral gain for 1st motor 0.0 to 999.9, 1000. H251 PI integral gain for 2nd motor 0.0 to 999.9, 1000.
  • Page 20 Code Function name Operation mode on expansion card P001 00 (tripping), 01 (continuing operation) 1 error Operation mode on expansion card P002 00 (tripping), 01 (continuing operation) 2 error Encoder pulse-per-revolution P011 128. to 9999., 1000 to 6553(10000 to 65535) (pulses) (PPR) setting P012 Control pulse setting...
  • Page 21 Code Function name Position setting range reverse side to forward side P060 Multistage position setting 0 (upper 4 digits including “-“) Position setting range reverse side to forward side P061 Multistage position setting 1 (upper 4 digits including “-“) Position setting range reverse side to forward side P062 Multistage position setting 2 (upper 4 digits including “-“)
  • Page 22 Code Function name Easy sequence user parameter U P116 0. to 9999., 1000 to 6553 (10000 to 65535) (16) Easy sequence user parameter U P117 0. to 9999., 1000 to 6553 (10000 to 65535) (17) Easy sequence user parameter U P118 0.
  • Page 23 Code Function name U001 User-selected function 1 no/d001 to P131 U002 User-selected function 2 no/d001 to P131 U003 User-selected function 3 no/d001 to P131 U004 User-selected function 4 no/d001 to P131 U005 User-selected function 5 no/d001 to P131 U006 User-selected function 6 no/d001 to P131 U007 User-selected function 7...

  • Page 24: Code Display System And Key Operations

    1.3 Code display system and key operations This section describes typical examples of digital operator operation (in basic and full display modes) and an example of special digital operator operation in extended function mode U. The initial display on the monitor screen after power-on depends on the setting of function "b038". For details, see Section 4.2.81, "Initial-screen selection,"...

  • Page 25: Example Of Operation In Basic Display Mode("B037"="04"[Factory Setting])

    1.3.1 Example of operation in basic display mode ("b037" = "04" [factory setting]) - Only basic parameters can be displayed in basic display mode. (All parameters in monitor mode, four parameters in function mode, or 20 parameters in extended function mode) - Other parameters are not displayed.
  • Page 26 Key operation and transition of the codes on display Pressing the key respectively scrolls up or down the code displayed in code display mode or increases or decreases the numerical data displayed in data display mode. Press the key until the desired code or numerical data is shown. To scroll codes or increase/decrease numerical data faster, press and hold the key.

  • Page 27: Example Of Operation In Full Display Mode("B037"="00"[Factory Setting])

    1.3.2 Example of operation in full display mode ("b037" = "00") All parameters can be displayed in full display mode. The display sequence of parameters matches their sequence shown in Chapter 8, "List of Data Settings." Key operation and transition of codes on display (in monitor or data on display (in monitor function mode)

  • Page 28: Code/Data Display And Key Operator In Extended Function Mode U

    1.3.3 Code/data display and key operation in extended function mode U The extended function mode U differs in operation from other extended function modes because the extended function mode U is used to register (or automatically record) other extended-function codes as user-specified U parameters.

  • Page 29: Chapter 2 Troubleshooting

    2. Troubleshooting 2.1 Inverter trip contents,remedy,advise Name Description If the motor is constrained or suddenly accelerated or decelerated, a high current will flow in the inverter and the inverter may fail. To avoid this problem, the inverter shuts off its output and displays the error code deceleration shown on the right when it...
  • Page 30 Name Description If the inverter input voltage drops, the control circuit of the inverter cannot function normally. Therefore, the inverter shuts off its output when the input voltage falls below a specified level. Undervoltage The inverter will trip if the DC voltage across the P and N terminals exceeds about 175 VDC (in case of the 200 V class models) or about 345 VDC (in case...
  • Page 31 Name Description Gate array If an error occurs in the communication communica- between the internal CPU and gate tion error array, the inverter will trip. When the phase loss input protection has been enabled (b006 = 01), the Phase loss inverter will trip to avoid damage if an input phase loss input is detected.
  • Page 32 Name Description The inverter detects errors in the option board mounted in the optional slot 2. For details, refer to the instruction Option 2 manual for the mounted option board. error If the input voltage falls, the inverter will shut off its output, display the code shown on the right, and wait for the recovery of the input voltage.

  • Page 33: Option Board Error Codes

    2.2 Option boards error codes When an option board is mounted in the optional port 1 (located near the operator connector), the error code display format is "E6*. " (on the digital operator) or "OP1-*" (on the remote operator). When it is mounted in the optional port 2 (located near the control circuit terminal block), the error code display format is "E7*.

  • Page 34: Error Indications By Protective Functions With The Digital Option Board (Sj-Dg) Mounted

    2.2.2 Error indications by protective functions with the digital option board (SJ-DG) mounted Name If timeout occurs during the communication between the inverter and digital option board, the SJ-DG error inverter will shut off its output and display the error code shown on the right.

  • Page 35: Error Indications By Protective Functions With The Devicenet Option Board (Sj-Dn) Mounted

    2.2.3Error indications by protective functions with the DeviceNet option board (SJ-DN) mounted Name Description If the disconnection due to the Bus-Off signal or timeout occurs during the DeviceNet operation using DeviceNet commands, communicatio the inverter will shut off its output and n error display the error code shown on the right.

  • Page 36: Error Indications By Protective Functions With The Easy Sequence Function Used

    2.2.4 Error indications by protective functions with the easy sequence function used Name - The inverter will display the error code shown on the right if an invalid instruction is found in a downloaded program. (*1) Invalid instruction - The inverter will display the error code if the PRG terminal is turned on when no program has been loaded.

  • Page 37: Trip Conditions Monitoring

    2.3 Trip conditions monitoring These digits indicate a trip factor. See Section 5.1.1. 2) Output frequency (Hz) at tripping 3) Output current (A) at tripping 4) DC voltage (V) across P and N terminals at tripping 5) Accumulated time (h) for which the inverter has been running before tripping 6) Accumulated time for which the inverter power has been on before tripping...

  • Page 38: Warning Codes

    2.4 Warning Codes The following table lists the warning codes and the contents of parameter readjustments: Warning code 001/ 201 Frequency upper limit setting (A061/A261) 002/ 202 Frequency lower limit setting (A062/A262) 004/ 204/ 304 Base frequency setting (A003/A203/A303) (*1) Output frequency setting (F001), multispeed 0 005/ 205/ 305 (A202/A220/A320) (*2)

  • Page 39: Initialization Setting

    2.5 Initialization setting The initialization function allows you to initialize the adjusted settings on the inverter to restore the factory settings. You can also clear the trip history data alone. The settings of initialization are described below. The settings of "P100" to "P131", running-time data, and power-on time data cannot be cleared. Item Function code Initialization mode...

  • Page 41: Chapter 3 Debug Mode

    3. Debug Mode Specifying "01" (ON) for the debugging-mode selection function (C091) displays the functions described below. Note: The debugging-mode selection function (C091) is not displayed when the factory settings are applied. To enable the display of said function, specify "00" (ALL) for the display selection function (b037). 3.1 Monitor Modes Function name Monitoring of control frequency...

  • Page 42: Function Modes

    3.2 Function Modes Function name Function for factory adjustment Region code for inverter Capacity code for inverter Voltage class code for inverter Inverter mode 3.3 How To Reference the Data Area (d105) Corresponding to Trip History In the data area you can directly reference the factors (determined by the gate array) of the past six trips. Do not change the value set as "C172".

  • Page 43: Inverter Setting

    3.4 Inverter Setting The logic board is common to all inverter models. If you change the inverter capacity or voltage class, you must also adjust the relevant settings of the logic board to those of the inverter. 3.4.1 Setting procedure (1) Prepare for power-on.

  • Page 44: Confirming The Completion Of Initialization

    3.4.2 Confirming the completion of initialization (1)Confirm the voltage class setting. (Confirming method) Display code "A082" on the monitor, press the FUNC key, and then confirm that data shown in the table below is displayed on the monitor. Note: Initialization switches the display mode of the digital operator to basic mode. Therefore, display code "b037" on the monitor before confirmation, and then select "00".

  • Page 45: Control Power Supply

    4.The check of control power supply voltage and a control signal 4.1 Control power supply Item PV5 +5V power supply PV12 +12V power supply Nv12 -12V power supply PV24 +24V power supply 4.2 Control signal Signal Measurement place J1 connector 32pin-L J1 connector 31pin-L J1 connector 30pin-L TRIP...

  • Page 47: Chapter 5 Maintenance And Inspection

    Check those inverter sections and parts which are accessible only while the inverter is stopped and which should be inspected regularly. When you intend to carry out a periodic inspection, contact your local Hitachi Distributor. During a periodic inspection, perform the following: 1) Check that the cooling system is normal.

  • Page 48: Daily And Periodic Inspections

    5.2 Daily and Periodic Inspections Part to Inspection item Detail of inspection inspect General Environment Check the ambient temperature, humidity, and dust. Whole inverter Check for abnormal vibrations and noise. Power supply Check that the main circuit voltage voltage is normal. Main General check (1) Check the ground resistance...

  • Page 49: Ground Resistance Test With A Megger

    5.3 Ground Resistance Test with a Megger When testing an external circuit with a megger, disconnect all the external circuit cables from the inverter to prevent it from being exposed to the test voltage. Use a tester (in high-resistance range mode) for a conduction test on the control circuit. Do not use a megger or buzzer for that purpose.

  • Page 50: Method Of Checking The Inverter And Converter Circuits

    5.5 Method of Checking the Inverter and Converter Circuits You can check the quality of the inverter and converter circuits by using a tester. (Preparation) 1) Remove the external power supply cables from terminals R, T, and T, the motor cables from terminals U, V, and W, and the regenerative braking resistor cables from terminals P and RB.

  • Page 51: Replacing Parts

    5.6 Replacing Parts The inverter consists of many parts and it functions normally only when all the parts operate normally. The table below lists the parts that may be subject to changes in characteristics and malfunctions after long-time use, even normally, over a specified number of years. Each part should be replaced at specified intervals to prevent inverter faults and changes in inverter characteristics.
  • Page 52 3) Removing the sheet-metal-case type of cooling-fan unit <1> Remove the terminal block cover and front cover. <2> Make sure that the Charge lamp goes off. <3> Remove the screws at the top. <4> Lift the cooling-fan mounting plate to remove it from the inverter. <5>...
  • Page 53 2) Mounting the molded-case type of smoothing capacitors (note)This feature to remove the smoothing capacitor easily is not available for the mold case type(up to 11Kw) <1> Place the capacitor unit on the capacitor mounting plate. <2> Fit both edges of the capacitor mounting plate into the guide grooves in the inverter casing, and then insert the plate into the inverter.

  • Page 54: Inverter Replacement

    (3) Smoothing capacitors (on PCB) Smoothing capacitors on PCB is recommended to be replaced after 10 years of usage under standard installation, which is the same as main Smoothing capacitors. If abnormality is found by visual inspection and/or if the control power supply is not activated after the power ON, the capacitors are required to be replaced.
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