LAFERT HP Combi Flow User Manual

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USER MANUAL

VARIABLE FREQUENCY DRIVE

0.55 to 22 kW | 0.75 to 30 HP

Three-phase 200-240 V

0.55 to 37 kW | 0.75 to 50 HP

Three-phase 380-480 V

0.55 to 37 kW | 0.75 to 50 HP

Three-phase 500-600 V

PACKAGE RANGE:

Table of Contents

Summary of Contents for LAFERT HP Combi Flow

Page 1 VARIABLE FREQUENCY DRIVE PACKAGE RANGE: 0.55 to 22 kW | 0.75 to 30 HP Three-phase 200-240 V 0.55 to 37 kW | 0.75 to 50 HP Three-phase 380-480 V 0.55 to 37 kW | 0.75 to 50 HP Three-phase 500-600 V USER MANUAL...
Page 2: Table Of Contents
5.8. Keypad Shortcuts ......2 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 3 P0-28. User Guide Revision 3.11 Lafert Group adopts a policy of continuous improvement and whilst every effort has been made to provide accurate and up to date information, the information contained in this User Guide should be used for guidance purposes only and does not form the part of any contract.
Page 4: Introduction
Ensure that all terminals are tightened to the appropriate torque setting. control circuits. Do not attempt to carry out any repair of the HP Combi Flow. In the case of suspected fault or malfunction, contact the Lafert Group Technical Department for further assistance.
Page 5: General Information And Ratings
I: 1 1kW L: 22kW O: 45kW F: 4.0kW 2.2. Product Rating Label Location All HP Combi Flow models carry a rating label, which can be located as follows: IP55 Models IP66 Models On right hand side when viewed from the front.
Page 6: Understanding The Rating Label
The product rating label provides the following information. IP55 Label IP66 Label Model Code Variable Frequency Drive IP55 / NEMA 12 Enclosure Type and IP Rating Variable Frequency Drive Indoor Use only www.lafert.com XCF3-52J-F0NMXX / NEMA 4X XCF3-34J-F0EMXX Input 200 – 240V 50/60Hz 36.4A IE2% Firmware Version 7.5kW /...
Page 7 2.4.3. Low Harmonic Variants The majority of the HP Combi Flow product range is based on a low harmonic solution using film capacitor technology to achieve compliance with EN 61000-3-12 without the need for any additional equipment. This standard specifies limits for harmonic currents for equipment connected to public low-voltage systems with input current >...
Page 8: Mechanical Installation
3. Mechanical Installation 3.1. General  T he HP Combi Flow should be mounted in a vertical position only, on a flat, flame resistant, vibration free mounting using the integral mounting holes.  D o not mount flammable material close to the HP Combi Flow.
Page 9: Mechanical Dimensions And Weight
9.25 10.63 20.47 6.89 50.7 Mounting Bolts Tightening Torques Frame Size Metric Frame Size Required Torque 5/16 Control Terminals 0.5 Nm 4.5 lb-in 4 Nm 35.5 lb-in Power Terminals www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 9...
Page 10 Frame Size Required Torque All Sizes Control Terminals 2, 3 & 4 0.5 Nm 4.5 lb-in 2 & 3 0.8 Nm 7 lb-in Power Terminals 2 Nm 19 lb-in 10 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 11: Guidelines For Mounting (Ip55 Units)
Typical drive heat losses are approximately 2% of the operating load power. The above dimensions are for guidance only, the operating ambient temperature of the drive MUST be maintained within the specified limits or allowed derating at all times. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 11...
Page 12: Guidelines For Mounting (Ip66 Units)
 F or conduit installations the conduit entry holes require standard opening to the required sizes specified per the NEC.  N ot intended for installation using rigid conduit system. 12 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 13: Installing The Ip66 Sun Shade
Install the HP Combi Flow following the instructions in the User the drive to allow sufficient space for installation of the IP66 Sun Guide. Place the IP66 Sun Shade over the HP Combi Flow and Shade. slide down until it slots on top of the heat sink, then fix in place using the mounting holes.
Page 14: Removing The Terminal Cover
Ensure any panel ventilation fans and air filters are clean and provide the correct required air flow.  C hecks should also be made on all electrical connections, ensuring screw terminals are correctly torqued; and that power cables have no signs of heat damage. 14 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 15: Ip66 (Nema 4X) Lock Off
On the switched models the mains switch-disconnector can be locked in the ‘Off’ position using a 20mm standard shackle padlock (not supplied). IP66 / NEMA 4X Unit Lock Off www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 15...
Page 16: Electrical Installation
A hazard of personal injury and/or equipment damage exists if codes are ignored during installation. This HP Combi Flow contains high voltage capacitors that take time to discharge after removal of the main supply. Before working on the drive, ensure isolation of the main supply from line inputs. Wait ten (10) minutes for the capacitors to discharge to safe voltage levels.
Page 17: Protective Earth (Pe) Connection
External EMC Filter (optional) Additional information in section 4.5. on page 19 Built-in mains switch-disconnector L1/L L2/N L3 HP Combi Flow Switched Ensure there is at least 30 seconds between each power-on! External Output Filter (optional)  Output Choke (load reactor)  dV/dT filter...
Page 18: Incoming Power Connection
4.2.4. Ground Fault Monitoring As with all inverters, a leakage current to earth can exist. The HP Combi Flow is designed to produce the minimum possible leakage current whilst complying with worldwide standards. The level of current is affected by motor cable length and type, the effective switching frequency, the earth connections used and the type of RFI filter installed.
Page 19: Emc Compliant Installation
 D ata in brackets shows permissible cable length with additional external EMC filter.  T he 500 – 600V drives are not equipped with the internal EMC filter and are intended for use on second environment only. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 19...
Page 20 4.4.4. Wiring Precautions Connect the HP Combi Flow according to section 4.6. Control Terminal Wiring, ensuring that motor terminal box connections are correct. It is essential to ensure that the motor is connected in accordance with the voltage at which it will be operated. For more information, refer to section 4.5.
Page 21: Hps Motor Connection
AC motor.  T he motor earth must be connected to one of the HP Combi Flow earth terminals.  M aximum permitted motor cable length is defined in section 4.4. EMC Compliant Installation on page 19.
Page 22: Control Terminal Wiring
Analog Outputs: 0 – 10 Volt / 4-20mA (20mA max) SAFE TORQUE OFF input: Logic High = 18-30 Vdc (Also refer to section 4. 1 0. Safe Torque Off on page 26) 22 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 23: Control Terminal Connections
0-10 V 10-0 V -10-10 V 0/4-20 mA 20-4 mA 2-wire or Loop Powered Transducer 3-wire Transducer 24 V DC 24 V DC Sensor Sensor 0/4-20 mA 0/4-20 mA www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 23...
Page 24: Motor Thermal Overload Protection
4.8.1. Internal Thermal Overload Protection HP Combi Flow has internal motor overload protection (current limit) set at 150% of FLC. This level may be adjusted using P4-07. The drive has an in-built motor thermal overload function; this is in the form of an “I.t-trP” trip after delivering >100% of the value set in P1-08 for a sustained period of time (e.g.
Page 25: Ip66 Switched Version Integrated Control Switch And Potentiometer Wiring
4.9. IP66 Switched Version Integrated Control Switch and Potentiometer Wiring HP Combi Flow is optionally available with an integrated mains switch-disconnector and front mounted control switch and potentiometer. This allows the drive to be operated directly from the front control panel, whilst also providing for options such as Hand / Auto or Local / Remote Control etc.
Page 26: Safe Torque Off
When using permanent magnet motors and in the unlikely event of multiple output power devices failing then the motor could effectively rotate the motor shaft by 180/p degrees (Where p denotes number of motor pole pairs). 26 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 27 Fault Code Code Number Description Corrective Action A fault has been detected within either of the Refer to the Lafert Group “Sto-F” internal channels of the “STO” circuit. Technical Department 4.10.5. “STO” Function response time The total response time is the time from a safety related event occurring to the components (sum of) within the system responding and becoming safe.
Page 28 'Auto-0'. This means that when the drive is ready to run (STO active and drive healthy), it will only start when it sees a rising edge on the run command. 28 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 29 (Minimum once per year), furthermore the function should be integrity tested following any safety system modifications or maintenance work. If drive fault messages are observed refer to section 12. 1 . Fault Messages for further guidance. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 29...
Page 30: Keypad And Display Operation
15kW 400V 3Ph English English Hold down the Start Use the Up and Down Press the Navigate and Up keys for >1s arrows to select a button to select. language. 30 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 31: Additional Display Messages
6.9kW Switching frequency is The incoming mains The user programmable reduced, due to high heatsink power supply has been maintenance reminder time temperature. disconnected or is missing. has elapsed. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 31...
Page 32: Changing Parameters
5.6. Resetting the Drive Following a Trip HP Combi Flow has many protection features, designed to protect both the drive and motor from accidental damage. When any of these protection features are activated, the drive will trip, and display a fault message. The fault messages are listed in section 12. 1 .
Page 33: Selecting Between Hand And Auto Control
The parameter will be set to the menu, press the Up and Down keys the selected parameter group will value, press the Up and Down lowest possible value. simultaneously. be selected. keys simultaneously. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 33...
Page 34 Stop and parameter selection keys simultaneously. press will move and down keys. Navigate will return the menu. another digit to the cursor to the right most left. digit. 34 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 35: Commissioning
6.1.2. Minimum and Maximum Frequencies / Speeds HP Combi Flow units are factory set to operate the motor from zero up to base speed (50 or 60Hz output). In general, this operating range is suitable for a wide range of requirements, however in some cases it may be desired to adjust these limits, e.g. where the maximum speed of a fan or pump may provide excessive flow, or where operation below a certain speed is never required.
Page 36: Parameters
 Group 0 – Monitoring and Diagnostic Parameters (Read Only). When the HP Combi Flow is reset to factory defaults, or is in its factory supplied state, only Group 1 Parameters can be accessed. In order to allow access to parameters from the higher level groups, P1-14 must be set to the same value as P2-40 (Default setting = 101).
Page 37 By the selected Fieldbus (Group 5 Parameters) – Excludes BACnet (see option 6). Slave Mode The drive acts as a Slave to a connected HP Combi Flow operating in Master Mode. BACNet MS/TP Mode Drive communicates / responds as a slave within a BACnet network.
Page 38: Control Terminal Functions
10 to allow selection between two independent digital references using digital input 2. Digital preset reference 1 and 2 are set in P3-06 and P3-15 respectively. “Motor thermistor trip” connection is via analog input 2 and is configured by parameter P2-33 (t-t). NOTE 38 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 39: Extended Parameters
Defines the width of the skip frequency band. The width of the skip frequency band is defined by:  Lower limit = P2-09 - P2-10/2  Upper limit = P2-09 + P2-10/2 All skip frequency bands defined for forward speeds are mirrored for negative speeds. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 39...
Page 40 P2-11 Analog Output 1 Function Digital Output Mode. Logic 1 = +24V DC Drive running Logic 1 when the HP Combi Flow is enabled (Running). Drive healthy Logic 1 When no Fault condition exists on the drive. At speed Logic 1 when the output frequency matches the setpoint frequency.
Page 41 15 : Low & high current warning. Logic 1 when the load monitoring has been enabled using P8-06 to P8-08 and a high load or low load condition has been detected – usually used to signal pump blockage or burst pipe. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 41...
Page 42 This parameter defines the time period, whereby if the drive operates at the frequency / speed set in P3-14 (Standby speed threshold) for greater than the set time period, the HP Combi Flow output will be disabled, and the display will show t. The function is disabled if P2-27 = 0.0.
Page 43  - = 0 to 20mA Signal. t - = 4 to 20mA Signal, the HP Combi Flow will trip and show the fault code -F if the signal level falls below 3mA.  - = 4 to 20mA Signal, the HP Combi Flow will ramp to preset speed 4 (P2-04) if the signal level falls below 3mA.
Page 44: Parameter Group 3 - Pid Control
0 : Reserved. 1 : Coast to stop. The HP Combi Flow will immediately disable the output to the motor, allowing the load to coast or free wheel. When using this setting with high inertia loads, the Spin Start function (P2-26) may need to be enabled.
Page 45 This can be useful in situations where the system has been operating in steady state and sudden closing and then re-opening of valves can cause an overshoot of pressure followed by an undershoot which could trigger the “Pr-Lo” trip unnecessarily. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 45...
Page 46: Parameter Group 4 - High Performance Motor Control
P5-01 Drive Fieldbus Address Sets the Fieldbus address for the HP Combi Flow. When using Modbus RTU, this parameter sets the Node Address. Refer to section 10.2. Modbus RTU Communications for further information. Please note that if a higher Modbus address than 63 is required, P5-16 can be used – see P5-16 for further information.
Page 47 Seconds Sets the watchdog time period for the communications channel. If a valid telegram is not received by the HP Combi Flow within this time period, the drive will assume a loss of communications has occurred and react as selected below (P5-07).
Page 48: Advanced Parameters
0.0% P6-28 P0-80 Display Index 0 - 200 P6-29 User Default Parameters No Function Save user parameters Clear user parameters P6-30 Level 3 (Advanced) Access Code 0 – 9999 48 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 49: Parameter Group 8 - Application Function Specific Parameters
Pump Clean Function Ramp Time 6000 Seconds Independent ramp rate used only for the pump automatic cleaning function (see P8-03) when the motor is Accelerated as part of the cleaning cycle. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 49...
Page 50 Care must be taken when setting P8-13 to ensure that drive and DOL contactors are not switched in circuit simultaneously. Both Mechanical and Electrical interlocking of drive and DOL contactors to regional standards are recommended in configuring the Bypass function. 50 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 51: Fire Mode
If Fire Mode speed is set (<>0) in P8-10, when fire mode is activated, the drive will enter Fire Mode and run at the speed set in P8-10 and will ignore all other terminals with the exception of the STO. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 51...
Page 52: Parameter Group 9 - User Inputs And Output Programming
Relay 3,4,5 Function Healthy : Tripped : Running Function block program - digital P9-42 Clean Trigger Source (edge) P9-43 Bypass Mode Trigger Source P9-44 PID Second Digital Ref Select 52 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 53: Parameter Group 0 - Monitoring Parameters (Read Only)
Displays the motor magnetising Current, providing an auto tune has been successfully completed. P0-16 DC Bus Voltage Ripple Volts Displays the level of ripple present on the DC Bus Voltage. This parameter is used by the HP Combi Flow for various internal protection and monitoring functions. P0-17 Motor Stator Resistance (Rs) Ohms Displays the measured motor stator resistance, providing an auto tune has been successfully completed.
Page 54 Two entry display: First display shows hours. Second display shows minutes and seconds. Displays the amount of time in hours and minutes that the HP Combi Flow has operated for during its lifetime with an ambient temperature in excess of 80°C. This parameter is used by the HP Combi Flow for various internal protection and monitoring functions.
Page 55 Modbus RTU / BACnet MSTP Fault Counter This parameter is incremented every time an error occurs on the Modbus RTU communication link. This information can be used for diagnostic purposes. www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 55...
Page 56: Serial Communications
10.1. RS-485 Communications HP Combi Flow has an RJ45 connector located within the wiring enclosure of the drive. This connector allows the user to set up a drive network via a wired connection. The connector contains two independent RS485 connections, one for Lafert Group’s Optibus Protocol and one for Modbus RTU / BACnet MSTP.
Page 57: Rs-485 Communications
10.2.1. Modbus Telegram Structure The HP Combi Flow supports Master / Slave Modbus RTU communications, using the 03 Read Multiple Holding Registers and 06 Write Single Holding Register commands and 16 Write Multiple Holding Registers (Supported for registers 1 – 4 only). Many Master devices treat the first Register address as Register 0;...
Page 58 Read Value of P1-01 = 500, therefore this is 50.0Hz. For further details on communicating with the HP Combi Flow using Modbus RTU, please refer to the Lafert Group Technical Department. 58 | HPI Combi Flow User Guide | Version 3.11...
Page 59: Bacnet Mstp
10.3.1. Overview HP Combi Flow provides an interface for direct connection to a BACnet MSTP network. Connection is made via the RJ45 connection port, see section 10. 1 . RS-485 Communications for terminal assignment and section 10. 1 . 1 . RS-485 Communications Electrical Connections for wiring requirements.
Page 60 User specified relay output 5 status CLOSED/OPEN * This function only works if the relay output can be controlled by user value (Refer to the HP Combi Flow Parameter List for further details) 60 | HPI Combi Flow User Guide | Version 3.11...
Page 61  WHO-IS (Reply with I-AM, and I-AM will also be broadcasted on power up and reset)  WHO-HAS (Reply with I-HAVE)  Read Property  Write Property  Device Communication Control  Reinitialize Device www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 61...
Page 62 Event State × × Out-of-Service × × Units × Priority Array ×* ×* Relinquish Default ×* ×* Polarity × Active Text × Inactive Text × * For commandable values only 62 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 63  MS/TP slave (Clause 9), baud rate(s):  Point-To-Point, EIA 232 (Clause 10), baud rate(s):  Point-To-Point, modem, (Clause 10), baud rate(s):  LonTalk, (Clause 1 1), medium:  BACnet/ZigBee (ANNEX O)  Other: www.lafert.com Version 3.11 | HPI Combi Flow User Guide | 63...
Page 64  ISO 10646 (UCS-2)  ISO 10646 (UCS-4)  JIS X 0208 If this product is a communication gateway, describe the types of non-BACnet equipment/networks(s) that the gateway supports. 64 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 65: Technical Data
The following tables provide the output current rating information for the various HP Combi Flow models. Lafert Group always recommend that selection of the correct HP Combi Flow is based upon the motor full load current at the incoming supply voltage.
Page 66 Fuse or MCB Maximum Cable Size Rated Output Maximum Motor Size Current (Type B) Current Cable Length Non UL AWG/kcmil 0.75 4. 1 1 1.4 20.5 25.3 18.5 35.2 42.2 66 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 67 The rise time and peak voltage can affect the service life of the motor. Lafert Group recommend using an output choke for motor cable lengths of 50m or more to ensure good motor service life.
Page 68: 1.6. Additional Information For Ul Compliance
11.6. Additional Information for UL Compliance HP Combi Flow is designed to meet the UL requirements. For an up to date list of UL compliant products, please refer to UL listing NMMS.E334189. In order to ensure full compliance, the following must be fully observed.
Page 69: 1.8. Derating Information
11.7.2. IP55 Models These models require disassembly in order to disconnect the EMC filter. Disconnection should be carried out only by Lafert Group Approved Service Partners. 11.8. Derating Information Derating of the drive maximum continuous output current capacity is require when:  Operating at ambient temperature in excess of 40°C / 104°F (IP55 &...
Page 70: Troubleshooting
S- Optibus serial Communications Communications lost with PC or remote keypad. Check the cables and comms fault Fault connections to external devices. 70 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com...
Page 71 The reference signal on Analog Input 1 or 2 (Terminals 6 or 10) has dropped of range Lost below the minimum threshold of 3mA when signal format is set to 4-20mA. Check the signal source and wiring to the HP Combi Flow terminals. t-E M/C processor Internal memory Parameters not saved, factory defaults are reloaded.
Page 72: Resetting A Fault
32 seconds delay before reset is possible Subsequent Trips 64 seconds delay before reset is possible Ñ82-HEMAN-LFT_V3.11>Ó 82-HEMAN-LFT_V3. 1 1 Lafert S.p.A. J.F. Kennedy, 43 30027 San Donà di Piave - Venezia, Italy Phone +39 0421 229 61 1 Fax +39 0421 222 90 www.lafert.com...