LAFERT HP Combi Flow User manual

THREE-PHASE MOTORS
SINGLE-PHASE MOTORS
BRAKE MOTORS
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 37kW | 0.75 to 50 HP
Three-phase 500-600 V
USER MANUAL

2| HPI Combi Flow User Guide | Version 3.11 www.lafert.com
1. Introduction .............................. 4
1.1. Important Safety Information
.................... 4
2. General Information and Ratings
........... 5
2.1. Identifying the Drive by Model Number
.......... 5
2.2. Product Rating Label Location
................... 5
2.3. Understanding the Rating Label
................. 6
2.4. Drive Model Numbers
......................... 6
3. Mechanical Installation
.................... 8
3.1. General
...................................... 8
3.2. Before Installation
............................. 8
3.3. UL Compliant Installation
....................... 8
3.4. Installation Following a Period of Storage
........ 8
3.5. Mechanical Dimensions and Weight
............ 9
3.6. Guidelines for Mounting (IP55 Units)
............ 11
3.7. Guidelines for Mounting (IP66 Units)
............. 12
3.8. Gland Plate
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.9. Installing the IP66 Sun Shade
................... 13
3.10. Removing the Terminal Cover
................... 14
3.11. Routine Maintenance
.......................... 14
3.12. IP66 (NEMA 4X) Lock Off
..................... 15
4. Electrical Installation
....................... 16
4.1. Connection Diagram
........................... 16
4.2. Protective Earth (PE) Connection
................. 17
4.3. Incoming Power Connection
.................... 18
4.4. EMC Compliant Installation
.................... 19
4.5. HPS Motor Connection
........................ 21
4.6. Control Terminal Wiring
........................ 22
4.7. Control Terminal Connections
................... 23
4.8. Motor Thermal Overload Protection
............. 24
4.9. IP66 Switched Version Integrated Control Switch
and Potentiometer Wiring
..........................
25
4.10. Safe Torque Off
.............................. 26
5. Keypad and Display Operation .............. 30
5.1. Keypad and Display Layout
..................... 30
5.2. Selecting the Language on the TFT Display
....... 30
5.3. Additional Display Messages
................... 31
5.4. Changing Parameters
.......................... 32
5.5. Parameter User Reset
.......................... 32
5.6. Resetting the Drive Following a Trip
.............. 32
5.7. Selecting Between Hand and Auto Control
....... 33
5.8. Keypad Shortcuts
.............................. 33
6. Commissioning
................................... 35
6.1. General................................................. 35
7. Parameters........................................ 36
7.1. Parameter Set Overview
.................................. 36
7.2. Parameter Group 1 – Basic Parameters ...................... 36
8. Control Terminal Functions........................... 38
8.1. Digital Input Configuration Parameter P1-13
................ 38
9. Extended Parameters
.............................. 39
9.1. Parameter Group 2 – Extended parameters ................... 39
9.2. Parameter Group 3 – PID Control........................... 44
9.3. Parameter Group 4 – High Performance Motor Control ........ 46
9.4. Parameter Group 5 – Communication Parameters ............. 46
9.5. Advanced Parameters ..................................... 48
9.6. Parameter Group 8 – Application Function Specific Parameters .. 49
9.7. Fire Mode ............................................... 51
9.8. Parameter Group 9 – User Inputs and Output Programming ..... 52
9.9. Parameter Group 0 – Monitoring Parameters (Read Only) ...... 53
10. Serial Communications.......................... 56
10.1. RS-485 Communications
................................ 56
10.2. Modbus RTU Communications ............................ 57
10.3. BACnet MSTP .......................................... 59
11. Technical Data ................................. 65
11.1. Environmental ........................................... 65
11.2. Input Power Supply Requirements........................... 65
11.3. Input Voltage Ranges ..................................... 65
11.4. Phase Imbalance ........................................ 65
11.5. Output Power and Current ratings .......................... 65
11.6. Additional Information for UL Compliance ................... 68
11.7. Internal EMC Filter and Varistors – Disconnection Procedure .... 68
11.8. Derating Information ..................................... 69
12. Troubleshooting ............................... 70
12.1. Fault Messages.......................................... 70
12.2. Resetting a Fault ......................................... 72

Version 3.11 | HPI Combi Flow User Guide | 3www.lafert.com
Declaration of Conformity
Lafert Group hereby states that the HP Combi Flow product range conforms to the relevant safety provisions of the following council directives:
2014/30/EU (EMC) and 2014/35/EU (LVD)
Design and manufacture is in accordance with the following harmonised European standards:
EN 61800-5-1:2007:A11:2021 Adjustable speed electrical power drive systems. Safety requirements. Electrical, thermal and energy.
EN 61800-3:2018 Adjustable speed electrical power drive systems. EMC requirements and specific test methods.
EN61000-3-12:2021
Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >
16 A and <= 75 A per phase.
Three phase 200V and three phase 400V HP Combi Flow products comply with IEC 61000-3-12 with respect
to the THC without the need for Line Reactors, provided that the short-circuit power SSC is greater than or equal to
SSC (min) at the interface point between the user's supply and the public system. It is the responsibility of the installer
or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the
equipment is connected only to a supply with a short-circuit power SSC greater than or equal to SSC (min) calculated as:
SSC (min) =320 × Vrated × Irated
Where Vrated is the drive rated voltage (phase to phase) and Irated is the drive rated current (per phase)
EN 55011:2007 Limits and Methods of measurement of radio disturbance characteristics of industrial, scientific and medical (ISM)
radio-frequency equipment (EMC).
EN60529: 992 Specifications for degrees of protection provided by enclosures.
Safe Torque OFF (“STO”) Function
HP Combi Flow incorporates a hardware STO (Safe Torque Off) Function, designed in accordance with the standards listed below.
Standard Classification Independent Approval
EN 61800-5-2:2016 Type 2
*TUV
EN ISO 13849-1:2015 PL “d”
EN 61508 (Part 1 to 7):2010 SIL 2
EN60204-1:2018 Uncontrolled Stop “Category 0”
EN 62061:2005/A2:2015 SIL CL 2
Electromagnetic Compatibility
All HP Combi Flows are designed with high standards of EMC in mind. All versions intended for use within the European Union are fitted with an
internal EMC filter. This EMC filter is designed to reduce the conducted emissions back into the supply via the power cables for compliance with
harmonised European standards.
It is the responsibility of the installer to ensure that the equipment or system into which the product is incorporated complies with the EMC legislation
of the country of use. Within the European Union, equipment into which this product is incorporated must comply with the EMC Directive 2014/30/
EU. This User Guide provides guidance to ensure that the applicable standards may be achieved.
Copyright Lafert Group © 2021
All rights reserved. No part of this User Guide may be reproduced or transmitted in any form or by any means, electrical or mechanical including
photocopying, recording or by any information storage or retrieval system without permission in writing from the publisher.
2 Year Warranty: All Lafert Group HP Combi Flow units carry a 2 year warranty against manufacturing defects from the date of
manufacture. The manufacturer accepts no liability for any damage caused during or resulting from transport, receipt of delivery, installation
or commissioning. The manufacturer also accepts no liability for damage or consequences resulting from inappropriate, negligent or incorrect
installation, incorrect adjustment of the operating parameters of the drive, incorrect matching of the drive to the motor, incorrect installation,
unacceptable dust, moisture, corrosive substances, excessive vibration or ambient temperatures outside of the design specification.
This user guide is the “original instructions” document. All non-English versions are translations of the “original instructions”.
The contents of this User Guide are believed to be correct at the time of printing. In the interest of a commitment to a policy of continuous improvement,
the manufacturer reserves the right to change the specification of the product or its performance or the contents of the User Guide without notice.
This User Guide is for use with version 2.50 Firmware. The firmware version can be viewed in
parameter 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.
When installing the drive on any power supply where the phase-ground voltage may exceed the phase-phase voltage (typically IT
supply networks or Marine vessels) it is essential that the internal EMC filter ground and surge protection varistor ground (where fitted) are
disconnected. If in doubt, refer to your Sales Partner for further information.
This manual is intended as a guide for proper installation. Lafert Group cannot assume responsibility for the compliance or the non-
compliance to any code, national, local or otherwise, for the proper installation of this drive or associated equipment. 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.
Failure to observe this precaution could result in severe bodily injury or loss of life.
Only qualified electrical personnel familiar with the construction and operation of this equipment and the hazards involved should
install, adjust, operate, or service this equipment. Read and understand this manual and other applicable manuals in their entirety before
proceeding. Failure to observe this precaution could result in severe bodily injury or loss of life.

4| HPI Combi Flow User Guide | Version 3.11 www.lafert.com
1. Introduction
1.1. Important Safety Information
Please read the IMPORTANT SAFETY INFORMATION below, and all Warning and Caution information elsewhere.
Danger: Indicates a risk of electric shock, which,
if not avoided, could result in damage to the
equipment and possible injury or death.
This variable speed drive product (HP Combi Flow) is
intended for professional incorporation into complete
equipment or systems as part of a fixed installation. If
installed incorrectly it may present a safety hazard. The
HP Combi Flow uses high voltages and currents, carries a
high level of stored electrical energy, and is used to control
mechanical plant that may cause injury. Close attention
is required to system design and electrical installation to
avoid hazards in either normal operation or in the event
of equipment malfunction. Only qualified electricians are
allowed to install and maintain this product.
System design, installation, commissioning and
maintenance must be carried out only by personnel who
have the necessary training and experience. They must
carefully read this safety information and the instructions in
this Guide and follow all information regarding transport,
storage, installation and use of the HP Combi Flow,
including the specified environmental limitations.
Do not perform any flash test or voltage withstand test
on the HP Combi Flow. Any electrical measurements
required should be carried out with the HP Combi Flow
disconnected. Internal surge arrestors are fitted, intended
to protect against damage due to mains borne spikes,
which will result in the product failing the flash test.
Electric shock hazard! Disconnect and ISOLATE the HP
Combi Flow before attempting any work on it. High
voltages are present at the terminals and within the drive
for up to 10 minutes after disconnection of the electrical
supply. Always ensure by using a suitable multimeter that
no voltage is present on any drive power terminals prior to
commencing any work.
Where supply to the drive is through a plug and socket
connector, do not disconnect until 10 minutes have elapsed
after turning off the supply.
Ensure correct earthing connections and cable selection as
per defined by local legislation or codes. The drive may
have a leakage current of greater than 3.5mA; furthermore
the earth cable must be sufficient to carry the maximum
supply fault current which normally will be limited by the
fuses or MCB. Suitably rated fuses or MCB should be
fitted in the mains supply to the drive, according to any
local legislation or codes.
Do not carry out any work on the drive control cables
whilst power is applied to the drive or to the external
control circuits.
Danger: Indicates a potentially hazardous situation
other than electrical, which if not avoided, could
result in damage to property.
Within the European Union, all machinery in which this product is
used must comply with Directive 98/37/EC, Safety of Machinery.
In particular, the machine manufacturer is responsible for providing
a main switch and ensuring the electrical equipment complies with
EN60204-1.
The level of integrity offered by the HP Combi Flow control input
functions – for example stop/start, forward/reverse and maximum
speed, is not sufficient for use in safety-critical applications without
independent channels of protection. All applications where
malfunction could cause injury or loss of life must be subject to a risk
assessment and further protection provided where needed.
The driven motor can start at power up if the enable input signal is
present.
The STOP function does not remove potentially lethal high
voltages. ISOLATE the drive and wait 10 minutes before starting
any work on it. Never carry out any work on the Drive, Motor or
Motor cable whilst the input power is still applied.
Do not activate the automatic fault reset function on any systems
whereby this may cause a potentially dangerous situation.
IP55 drives can be installed in a pollution degree 2 environment.
IP66 outdoor drives can be installed in a pollution degree 4
environment.
HP Combi Flows are intended for indoor use only, useless
specifically stated as being suitable for installation outdoors and
installed in accordance with the Manufacturers guidelines.
When mounting the drive, ensure that sufficient cooling is provided.
Do not carry out drilling operations with the drive in place, dust
and swarf from drilling may lead to damage.
The entry of conductive or flammable foreign bodies should be
prevented. Flammable material should not be placed close to
the drive.
Relative humidity must be less than 95% (non-condensing).
Ensure that the supply voltage, frequency and 3 Phase Voltage
corresponds to the rating of the HP Combi Flow.
Never connect the mains power supply to the Output terminals U, V, W.
Do not install any type of automatic switchgear between the drive
and the motor. This may cause the drive protection to activate,
resulting in a trip and loss of operation.
Wherever control cabling is close to power cabling, maintain a
minimum separation of 100 mm and arrange crossings at 90 degrees.
Ensure that all terminals are tightened to the appropriate torque setting.
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.
1
Introduction

Version 3.11 | HPI Combi Flow User Guide | 5www.lafert.com
2. General Information and Ratings
2.1. Identifying the Drive by Model Number
Each drive can be identified by its model number, shown below. The model number is on the shipping label and the drive nameplate.
The model number includes the drive and factory fitted options.
X C F 3 - 2 4 B - F 0 A M X X
Drive Cable Entry
X: N/A
Product
C: Combi
Lid Option
X: N/A
Family
F:Flow
Display
M: TFT
Generation
3
IP Version
A: IP66 Non-Switched
E:
IP66 With Disconnector
N: IP55 Non-Switched
Size
2, 3, 4, 5
Voltage
2: 3x200V
4: 3x400V
6: 3x600V
Brake
0: No Brake Chopper
Power
B:0.75kW
C: 1.5kW
D: 2.2kW
F: 4.0kW
G: 5.5kW
H: 7.5kW
I: 11kW
J: 15kW
K: 18.5kW
L: 22kW
M: 30kW
N: 37kW
O: 45kW
EMC Filter
0: Non-Filtered
F: Filtered
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.
On the top surface.
2
General Information and Ratings

6| HPI Combi Flow User Guide | Version 3.11 www.lafert.com
2.3. Understanding the Rating Label
The product rating label provides the following information.
Key IP55 Label IP66 Label
1Model Code
Serial No.: 11111111111
Variable Frequency Drive
S/W : V3.09
13042021
XCF3-52J-F0NMXX
Input 200 – 240V 50/60Hz 3Ph 36.4A IE2%
Output 0 – Vin 0-500Hz 3Ph 30.0A 2
7.5kW /
10HP
IP55 / NEMA 12 Indoor Use only
Max Amb, 40° C
Made in the UK
SCCR: For rating
and protection
refer to User Guide
CAUTION
www.lafert.com
2
5
1
6
3
4
www.lafert.com
Further information
available from
ODV-3-340300-3F1E-MN
11111111111
16/09/2021
129061
ECO IP66E
OD,S3,380-480V,3Ph,15kW,30A,TF
T
380-480V +/-10%
ECO IP66E
OD,S3,380-480V,3Ph,15kW,30A,TFT
11111111111
Serial No.:
Variable Frequency Drive
CAUTION
X
CF3-34J-F0EMXX
16 09 2021
11111111111 S/W: 999.00
Power down for 10 minutes
before removing cover
Output
Input 380-480 3 33.0
30.0
15
30-500Hz
50/60Hz
40
kW
A
HP
V
Read User Guide before
installation or servicing
Risk of Electric Shock
Max Amb °C
20
SCCR: For rating and protection refer to User Guide
Ph
Ph
A
IE2%
2.7
0-Vin
AVERTISSMENT
Une tension dangereuse peut
être presentée jusq'u a 10 mins
après avoir coupé l'alimentation
Risque du choc électrique
Made in the UK
66IP / NEMA 4X
Listed 2AD0
E334189
Ind.Cont.Eq.
2
5
1
6
3
4
2Enclosure Type and IP Rating
3Firmware Version
4Serial Number
5Technical Data – Supply
Voltage
6Technical Data – Maximum
continuous output current
2.4. Drive Model Numbers
2.4.1. IP66 Outdoor Rated Enclosed Units
200 – 240 Volt, 3 Phase Input
Non-Switched With Disconnect Frame kW HP Amps Low Harmonic
XCF3-22B-F0AMXX XCF3-22B-F0EMXX 2 0.75 1 4.3 Yes
XCF3-22C-F0AMXX XCF3-22C-F0EMXX 2 1.5 2 7 Yes
XCF3-22D-F0AMXX XCF3-22D-F0EMXX 2 2.2 3 10.5 Yes
XCF3-32F-F0AMXX XCF3-32F-F0EMXX 3 4 5 18 Yes
XCF3-32G-F0AMXX XCF3-32G-F0EMXX 3 5.5 7. 5 24 Yes
XCF3-32H-F0AMXX XCF3-32H-F0EMXX 3 7. 5 10 30 Yes
XCF3-42I-F0AMXX XCF3-42I-F0EMXX 4 11 15 46 Yes
380 – 480 Volt, 3 Phase Input
Non-Switched With Disconnect Frame kW HP Amps Low Harmonic
XCF3-24B-F0AMXX XCF3-24B-F0EMXX 2 0.75 1 2.2 Yes
XCF3-24C-F0AMXX XCF3-24C-F0EMXX 2 1.5 24 .1 Yes
XCF3-24D-F0AMXX XCF3-24D-F0EMXX 2 2.2 3 5.8 Yes
XCF3-24F-F0AMXX XCF3-24F-F0EMXX 2 4 5 9.5 Yes
XCF3-24G-F0AMXX XCF3-24G-F0EMXX 2A 5.5 7. 5 14 Yes
XCF3-34H-F0AMXX XCF3-34H-F0EMXX 3 7. 5 10 18 Yes
XCF3-34I-F0AMXX XCF3-34I-F0EMXX 3 11 15 24 Yes
XCF3-34J-F0AMXX XCF3-34J-F0EMXX 3 15 20 30 Yes
XCF3-44K-F0AMXX XCF3-44K-F0EMXX 4 18.5 25 39 Yes
XCF3-44L-F0AMXX XCF3-44L-F0EMXX 4 22 30 46 Yes
2
General Information and Ratings

Version 3.11 | HPI Combi Flow User Guide | 7www.lafert.com
500 – 600 Volt, 3 Phase Input
Non-Switched With Disconnect Frame kW HP Amps Low Harmonic
XCF3-26B-00AMXX XCF3-26B-00EMXX 2 0.75 12.1 No
XCF3-26C-00AMXX XCF3-26C-00EMXX 2 1.5 23.1 No
XCF3-26D-00AMXX XCF3-26D-00EMXX 2 2.2 3 4 .1 No
XCF3-26F-00AMXX XCF3-26F-00EMXX 2 4 5 6.5 No
XCF3-26G-00AMXX XCF3-26G-00EMXX 2 5.5 7. 5 9 No
XCF3-36H-00AMXX XCF3-36H-00EMXX 3 7. 5 10 12 No
XCF3-36I-00AMXX XCF3-36I-00EMXX 3 11 15 17 No
XCF3-36J-00AMXX XCF3-36J-00EMXX 3 15 20 22 No
XCF3-46K-00AMXX XCF3-46K-00EMXX 4 18.5 25 28 No
XCF3-46L-00AMXX XCF3-46L-00EMXX 4 22 30 34 No
XCF3-46M-00AMXX XCF3-46M-00EMXX 4 30 40 43 No
2.4.2. IP55 Enclosed Units
200 – 240 Volt, 3 Phase Input
Model Code Frame kW HP Amps Low Harmonic
XCF3-52J-F0NMXX 5 15 20 61 Yes
XCF3-52K-F0NMXX 5 18.5 25 72 Yes
XCF3-52L-F0NMXX 5 22 30 90 Yes
380 – 480 Volt, 3 Phase Input
Model Code Frame kW HP Amps Low Harmonic
XCF3-54M-F0NMXX 5 30 40 61 Yes
XCF3-54N-F0NMXX 5 37 50 72 Yes
XCF3-54O-F0NMXX 5 45 60 90 Yes
500 – 600 Volt, 3 Phase Input
Model Code Frame kW HP Amps Low Harmonic
XCF3-56N-00NMXX 5 37 50 54 No
XCF3-56O-00NMXX 5 45 60 65 No
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 > 16A and <= 75A per phase. It is important to understand
which models from the product range are of the low harmonic technology which is detailed below.
The HP Combi Flow three phase 200V (200-240V) input and three phase 400V (380-480V) input drives frame sizes 2 up to and
including frame size 5 are a lower harmonic drive using film capacitor technology. Please refer to the product rating tables in section
2.4. Drive Model Numbers for confirmation.
In short, this means that the low harmonic drives do not require an input choke and should not have one installed – drives outside of
the above frame sizes and supply voltage / number of phases, are of standard electrolytic capacitor design and could benefit from
the use of input chokes if further harmonic reduction is required.
2
General Information and Ratings

8| HPI Combi Flow User Guide | Version 3.11 www.lafert.com
3. Mechanical Installation
3.1. General
 The HP Combi Flow should be mounted in a vertical position only, on a flat, flame resistant, vibration free mounting using the
integral mounting holes.
 Do not mount flammable material close to the HP Combi Flow.
 Ensure that the minimum cooling air gaps, as detailed in sections 3.7. Guidelines for Mounting (IP66 Units) on page 12 and
3.6. Guidelines for Mounting (IP55 Units) on page 11 are left clear.
 Ensure that the ambient temperature range does not exceed the permissible limits for the HP Combi Flow given in section
11.1. Environmental.
 Provide suitable clean, moisture and contaminant free cooling air sufficient to fulfil the cooling requirements of the HP Combi Flow.
3.2. Before Installation
 Carefully unpack the HP Combi Flow and check for any signs of damage. Notify the shipper immediately if any exist.
 Check the drive rating label to ensure it is of the correct type and power requirements for the application.
 To prevent accidental damage always store the HP Combi Flow in its original box until required. Storage should be clean and dry
and within the temperature range –40°C to +60°C.
3.3. UL Compliant Installation
Note the following for UL-compliant installation:
For an up to date list of UL compliant products, please refer to UL listing NMMS.E334189.
The drive can be operated within an ambient temperature range as stated in section 11.1. Environmental on page 65.
UL Listed ring terminals / lugs must be used for all bus bar and grounding connections.
Refer to section 11.6. Additional Information for UL Compliance on page 68.
3.4. Installation Following a Period of Storage
Where the drive has been stored for some time prior to installation,
or has remained without the main power supply present for an
extended period of time, it is necessary to reform the DC capacitors
within the drive according to the following table before operation.
For drives which have not been connected to the main power supply
for a period of more than 2 years, this requires a reduced mains
voltage mains voltage to be applied for a time period, and gradually
increased prior to operating the drive. The voltage levels relative to
the drive rated voltage, and the time periods for which they must be
applied are shown in the following table. Following completion of the
procedure, the drive may be operated as normal.
NOTE This is only valid for non low harmonic version - see section
2.4.3. Low Harmonic Variants on page 7.
100%
75%
50%
25%
T1 T2 T3 T4
Storage Period
/Power-OFF
Period
Initial
Input
Voltage
Level
Time
Period T1
Secondary
Input
Voltage
Level
Time
Period T2
Third
Input
Voltage
Level
Time
Period T3
Final
Input
Voltage
Level
Time
Period T4
Up to 1 Year 100% N/A
1 – 2 Years 100% 1 Hour N/A
2 – 3 Years 25% 30 Minutes 50% 30 Minutes 75% 30 Minutes 100% 30 Minutes
More than 3 Years 25% 2 Hours 50% 2 Hours 75% 2 Hours 100% 2 Hours
3
Mechanical Installation

Version 3.11 | HPI Combi Flow User Guide | 9www.lafert.com
3.5. Mechanical Dimensions and Weight
3.5.1. IP55 Units
C
B
E
D
Drive Size A B C D E Weight
mm in mm in mm in mm in mm in kg Ib
5540 21.26 235 9.25 270 10.63 520 20.47 175 6.89 23 50.7
Mounting Bolts Tightening Torques
Frame Size Metric UNF Frame Size Required Torque
5 M8 5/16 Control Terminals All 0.5 Nm 4.5 lb-in
Power Terminals 5 4 Nm 35.5 lb-in
3
Mechanical Installation

10 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
3.5.2. IP66 Units
C
F
Drive Size A B C D E F Weight
mm in mm in mm in mm in mm in mm in kg Ib
2257 10 .12 18 8 7.40 182 7.16 200 7. 87 178 7.00 172 6.77 5.5 12 .1
2A 257 10 .12 18 8 7.40 211 8.31 200 7. 87 178 7.00 19 6 7. 72
3310 12.20 211 8.31 235 9.25 252
9.92 197 7. 75 225 8.86 8.5 18 . 7
4 360 14 .17 240 9.45 271 10.67 300 11 . 81 227 8.94 260 10.24 9.5 20.9
NOTE
Measurement C is only valid for the version with the disconnect.
Frame size 2A is shown for the 5.5kW Frame size 2 as this requires a deeper heatsink with a fan.
Mounting Bolts Tightening Torques
Frame Size Metric UNF Frame Size Required Torque
All Sizes M4 #8 Control Terminals 2, 3 & 4 0.5 Nm 4.5 lb-in
Power Terminals 2 & 3 0.8 Nm 7 lb-in
4 2 Nm 19 lb-in
3
Mechanical Installation

Version 3.11 | HPI Combi Flow User Guide | 11www.lafert.com
3.6. Guidelines for Mounting (IP55 Units)
 Before mounting the drive, ensure that the chosen location meets the environmental condition requirements for the drive shown in
section 11.1. Environmental on page 65.
 The drive must be mounted vertically, on a suitable flat surface.
 The minimum mounting clearances as shown in the table below must be observed.
 The mounting site and chosen mountings should be sufficient to support the weight of the drives.
 IP55 units do not require mounting inside an electrical control cabinet; however they may be if desired.
 Using the drive as a template, or the dimensions shown above, mark the locations required for drilling
Suitable cable glands to maintain the IP protection of the drive are required. Gland sizes should be selected based on the number
and size of the required connection cables. Drives are supplied with a plain, undrilled gland plate to allow the correct hole sizes to
be cut as required. Remove the gland plate from the drive prior to drilling.
Drive Size X –Above & Below Y –Either Side
mm in mm in
5 (IP55) 200 7. 9 10 0.394
NOTE
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.
3
Mechanical Installation

12 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
3.7. Guidelines for Mounting (IP66 Units)
 Before mounting the drive, ensure that the chosen
location meets the environmental condition
requirements for the drive shown in section
11.1. Environmental on page 65.
 The drive must be mounted vertically, on a suitable
flat surface.
 The minimum mounting clearances as shown in the
table below must be observed.
 The mounting site and chosen mountings should be
sufficient to support the weight of the drives.
 Using the drive as a template, or the dimensions
shown above, mark the locations required for drilling.
 Suitable cable glands to maintain the ingress protection
of the drive are required. Gland holes for power and
motor cables are pre-moulded into the drive enclosure,
recommended gland sizes are shown below. Gland
holes for control cables may be cut as required.
 The mounting location should be free from vibration.
 Do not mount the drive in any area with excessive humidity, corrosive airborne chemicals or potentially dangerous dust particles.
 Avoid mounting close to high heat sources.
 The drive must not be mounted in direct sunlight. If necessary, install a suitable shade cover.
 The mounting location must be free from frost.
 Do not restrict the flow of air through the drive heatsink. The drive generates heat which must be naturally allowed to dissipate.
Correct air clearance around the drive must be observed.
 If the location is subject to wide ambient temperature and air pressure variation, install a suitable pressure compensation valve in
the drive gland plate.
NOTE If the drive has been in storage for a period longer than 2 years, the DC link capacitors must be reformed.
Drive Size X Above & Below Y Either Side
mm in mm in
2 200 7. 87 10 0.39
3 200 7. 87 10 0.39
4 200 7. 87 10 0.39
NOTE Above are guidelines only and the operating ambient temperature of the drive MUST be
maintained within the limits shown in section 11.1. Environmental at all times.
3.8. Gland Plate
The use of a suitable gland system is required to maintain the appropriate IP / NEMA rating. The gland plate has pre moulded cable
entry holes for power and motor connections suitable for use with glands as shown in the following table. Where additional holes are
required, these can be drilled to suitable size. Please take care when drilling to avoid leaving any particles within the product.
Recommended cable gland types and hole sizes IP66 / NEMA 4X Gland Plate
Power & Motor Cables
Drive Size Hole Size Recommended
PG Gland
Alternative
Metric gland
Size 2 & 3 27 PG21 M25
Size 4 37 PG29 -
 UL rated ingress protection ("Type" ) is only met when cables are installed
using a UL recognized bushing or fitting for a flexible-conduit system
which meets the required level of protection ("Type").
 For conduit installations the conduit entry holes require standard opening
to the required sizes specified per the NEC.
 Not intended for installation using rigid conduit system.
3
Mechanical Installation

Version 3.11 | HPI Combi Flow User Guide | 13www.lafert.com
3.9. Installing the IP66 Sun Shade
An IP66 Sun Shade should always be fitted (in accordance with these instructions) where the product is installed outdoors, and there
is a possibility for the display of the drive to come into the path of direct sunlight or where there is possibility of snow, ice, or other
particles accumulating on the top of the drive.
Recommended clearance before installation
Ensure you have at least 30mm either side and 100mm above
the drive to allow sufficient space for installation of the IP66 Sun
Shade.
30mm 30mm
100mm
Installing the IP66 Sun Shade
I
nstall the HP Combi Flow following the instructions in the User
Guide. Place the IP66 Sun Shade over the HP Combi Flow and
slide down until it slots on top of the heat sink, then fix in place
using the mounting holes.
A H
D
C
E
F
G
B
Drive
Size
A B C D E F G H Hole Size Weight
mm in mm in mm in mm in mm in mm in mm in mm in mm in Kg Ib
2275.5 10.85 13 9. 7 5.5 259.6 10.22 247.4 9. 74 140.0 5. 51 69.7 2 . 74 48.9 1.93 285.0 11 . 2 4.8 0 .19 1.5 3.3
3 & 4 340.7 13 . 41 16 9. 7 6.68 324.7 12 . 78 307.3 12 .1 180.0 7.09 99.6 3.92 48.9 1.93 355.0 14.0 4.8 0 .19 2.5 5.5
3
Mechanical Installation

14 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
3.10. Removing the Terminal Cover
3.10.1. IP66 Frame Sizes 2 & 33.10.2. IP66 Frame Size 4
Terminal Cover Release Screws
Using a suitable flat blade screwdriver,
rotate retaining screws indicated by
arrows until the screw slot is vertical.
3.10.3. IP55 Frame Size 5
3.11. Routine Maintenance
The drive should be included within the scheduled maintenance program so that the installation maintains a suitable operating
environment, this should include:
 
Ambient temperature is at or below that set out in the section 11.1. Environmental on page 65, with any relevant derating applied.
Heat sink fans (where fitted) freely rotating and are dust free.
If the drive is mounted within an enclosure:
o Ensure this is free from dust and condensation.
o Ensure sufficient ventilation of clean cooling air is provided.
o Ensure any panel ventilation fans and air filters are clean and provide the correct required air flow.
 Checks should also be made on all electrical connections, ensuring screw terminals are correctly torqued; and that power cables
have no signs of heat damage.
3
Mechanical Installation

Version 3.11 | HPI Combi Flow User Guide | 15www.lafert.com
3.12. IP66 (NEMA 4X) Lock Off
Mains switch-disconnector 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
3
Mechanical Installation

16 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
4. Electrical Installation
4.1. Connection Diagram
All power terminal locations are marked directly on the product.
4.1.1. Electrical Power Connections
L1/L L2/N L3
L1/L L2/N L3
Mains (1 or 3 phase)
U V W
HP Combi Flow Non-Switched
PE
PE
WI
VI
UI
M
Incoming Power Connection
Additional information in section 4.3. on page 18
Protective Earth PE Connection
Additional information in section 4.2. on page 18
Isolator/Disconnect
Ensure there is at least 30 seconds between each power-on!
Fuses/Circuit Breaker
Additional information in section 4.5.3. on page 20
External Line Reactor
Device must not be used with Low Harmonic Drives!
External EMC Filter (optional)
Additional information in section 4.5. on page 19
External Output Filter (optional)
Output Choke (load reactor)
dV/dT filter
Sinewave filter
Shielded Motor Cable with PE Connection
Additional information in section 4.6. on page 22
NOTE Enclosed drives are not suitable for rigid conduit system connection.
This manual is intended as a guide for proper installation. Lafert Group cannot assume responsibility for the compliance
or the non-compliance to any code, national, local or otherwise, for the proper installation of this drive or associated
equipment. 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. Failure to observe this precaution could result in severe bodily injury or loss of life.
Only qualified electrical personnel familiar with the construction and operation of this equipment and the hazards involved
should install, adjust, operate, or service this equipment. Read and understand this manual and other applicable manuals
in their entirety before proceeding. Failure to observe this precaution could result in severe bodily injury or loss of life.
4
Electrical Installation

Version 3.11 | HPI Combi Flow User Guide | 17www.lafert.com
4.1.2. Electrical Power Connections – IP66 (NEMA 4X) Switched Models
L1/L L2/N L3
L1/L L2/N L3
Mains (1 or 3 phase)
U V W
HP Combi Flow Switched
PE
BR
DC
+
PE
WI
VI
UI
M
DC
-
Incoming Power Connection
Additional information in section 4.3. on page 18
Protective Earth PE Connection
Additional information in section 4.2. on page 18
Fuses/Circuit Breaker
Additional information in section 4.5.3. on page 20
External Line Reactor
Device must not be used with Low Harmonic Drives!
External EMC Filter (optional)
Additional information in section 4.5. on page 19
Built-in mains switch-disconnector
Ensure there is at least 30 seconds
between each power-on!
External Output Filter (optional)
Output Choke (load reactor)
dV/dT filter
Sinewave filter
Brake Resistor with Thermal Overload Protection
Additional information in section 4.9. on page 24
Shielded Motor Cable with PE Connection
Additional information in section 4.6. on page 22
4
Electrical Installation

18 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
4.2. Protective Earth (PE) Connection
4.2.1. Grounding Guidelines
Adequate safety earthing must be provided in accordance with local wiring rules and codes of practice. The ground terminal of each
HP Combi Flow should be connected back to the common safety earth bar to maintain touch potentials within safe limits. The ground
terminal of each HP Combi Flow should be individually connected DIRECTLY to the site ground bus bar (through the EMC filter if
installed). HP Combi Flow ground connections should not loop from one drive to another, or to, or from any other equipment. Ground
impedance must conform to local industrial safety regulations and/or electrical codes.
To meet UL regulations, UL approved ring crimp terminals should be used for all ground wiring connections.
The integrity of all ground connections should be checked periodically.
4.2.2. Protective Earth Conductor
The Cross sectional area of the PE Conductor must be at least equal to that of the incoming supply conductors.
4.2.3. Motor Ground
The driven motor must be locally connected to a suitable ground location to maintain touch potentials within safe limits. In addition, the
motor ground must be connected to one of the ground terminals on the drive.
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. If an ELCB (Earth Leakage Circuit Breaker) is to be
used, the following conditions apply:
A Type B Device must be used.
Individual device should be used for each HP Combi Flow.
The device must be suitable for protecting equipment with a DC component in the leakage current.
The device should not be sensitive to high frequency leakage current.
4.2.5. Shield Termination (Cable Screen)
The safety ground terminal provides a grounding point for the motor cable shield. The motor cable shield connected to this terminal
(drive end) should also be connected to the motor frame (motor end). Use a shield terminating or EMI clamp to connect the shield to
the safety ground terminal, refer to section 4.4. EMC Compliant Installation on page 19.
4.3. Incoming Power Connection
 Power should be connected to the L1 and L2 terminals for single phase drives, L1, L2 and L3 for three phase drives. Phase
sequence is not important.
 For compliance with CE and C Tick EMC requirements, a symmetrical shielded cable is recommended.
 A fixed installation is required according to IEC61800-5-1.
 For units without an internal isolator / disconnect, a suitable disconnecting device should be installed between the HP Combi
Flow and the AC Power Source. The disconnecting device must conform to the local safety code / regulations (e.g. within Europe,
EN60204-1, Safety of machinery).
 The cables should be dimensioned according to any local codes or regulations.

Suitable fuses to provide wiring protection of the input power cable should be installed in the incoming supply line, according to the
data in section 11.5. Output Power and Current ratings. The fuses must comply with any local codes or regulations in place. In general,
type gG (IEC 60269) or UL type J, T or CC fuses are suitable; however in some cases type aR fuses may be required. The operating
time of the fuses must be below 0.5 seconds.
 Where allowed by local regulations, suitably dimensioned type B MCB circuit breakers of equivalent rating may be utilised in
place of fuses, providing that the clearing capacity is sufficient for the installation.
 When the power supply is removed from the drive, a minimum of 30 seconds should be allowed before re-applying the power.
A minimum of 10 minutes should be allowed before removing the terminal covers or connection.
 The maximum permissible short circuit current at the HP Combi Flow Power terminals as defined in IEC60439-1 is 100kA.
4
Electrical Installation

Version 3.11 | HPI Combi Flow User Guide | 19www.lafert.com
4.4. EMC Compliant Installation
4.4.1. Recommended Installation for EMC Compliance
Control cables
Twisted-Pair shielded
cables for analog
control and motor
feedback signals.
Cable shield exposed
and 360° clamped to
grounded metal plate or PE
bar. All other 360° bonding
methods are acceptable.
Motor cable
3-phase and PE shielded cable.
Maintain shield as far as
possible along the cable
Control cablesMains - supply
Mounting plate
with conductive
surface
≥ 100mm
Fuse /
MCB
L1 L2 L3
L1
L2
L3
PE
L1 L3 EMCL2/N UVW
I0I0I I0I0I
U V W PE
For Best-Practice use
360° bonding EMC
cable gland shielded
to motor chassis.
1 2 3 4 5 6 7 8 9 10 11 12 13
4.4.2. Recommended Cable Types by EMC Category
Number of
Input Phases
Rated Supply
Voltage Frame Size IP rating Maximum Motor Cable Length to Achieve
C1 1, 2, 5, 6, 8 C2 3, 5, 6, 8 C3 4, 7, 8
3 400 2, 3, 4 IP66 1 5 25
5 IP55 1 5 25
NOTE
 Data in brackets shows permissible cable length with additional external EMC filter.
 The 500 – 600V drives are not equipped with the internal EMC filter and are intended for use on second environment only.
4
Electrical Installation

20 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
General
1Compliance with category C1 conducted emissions only is achieved.
Supply Cable
2A screened (shielded) cable suitable for fixed installation with the relevant mains voltage in use. Braided or twisted type screened
cable where the screen covers at least 85% of the cable surface area, designed with low impedance to HF signals. Installation
of a standard cable within a suitable steel or copper tube is also acceptable - in this case, ensure that metal tube is adequately
grounded.
3A cable suitable for fixed installation with relevant mains voltage with a concentric protection wire. Installation of a standard cable
within a suitable steel or copper tube is also acceptable.
4A cable suitable for fixed installation with relevant mains voltage. A shielded type cable is not necessary.
Motor Cable
5A screened (shielded) cable suitable for fixed installation with the relevant voltage in use. Braided or twisted type screened
cable where the screen covers at least 85% of the cable surface area, designed with low impedance to HF signals. Installation
of a standard cable within a suitable steel or copper tube is also acceptable – in this case, ensure that metal tube is adequately
grounded.
6The cable shield should be terminated at the motor end using an EMC type gland allowing connection to the motor body through
the largest possible surface area. The shield must also be terminated at the drive end, as close as practically possible to the drive
output terminals. Where drives are mounted in a steel control panel enclosure, the cable screen may be terminated directly to the
control panel backplate using a suitable EMC clamp or gland fitted as close to the drive as possible. The drive earth terminal must
also be connected directly to this point, using a suitable cable which provides low impedance to high frequency currents. For IP55
and IP66 drives, connect the motor cable shield to the gland plate or internal ground clamp.
7A cable suitable for fixed installation with relevant voltage with a concentric protection wire. Installation of a standard cable within
a suitable steel or copper tube is also acceptable.
Control Cable
8A shielded cable with low impedance shield. Twisted pair cable is recommended for analog signals.
4.4.3. Recommended Cable Connections
IP55 IP66
L1 L2 L3 U V W
Shield Drain
Wire
L1 L3
EMC
L2/N
U V W
I0I0I I0I0I
+-
BR
Shield Drain
Wire
1 2 3 4 5 6 7 8 9 10 11 12 13
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. HPS Motor Connection.
It is recommended that the power cabling should be 4-core PVC-insulated screened cable, laid in accordance with local industrial
regulations and codes of practice.
4
Electrical Installation