Küenle KFUtronic Series User manual

Küenle Antriebssysteme GmbH & Co. KG
Saarstraße 41-43 - 71282 Hemmingen - Telefon [phone]
Fax [phone] - www.kueenle.de - [email protected]
Instruction Manual
Frequency Inverter
(incl. Control Unit MMI)
(incl. Extension Profibus)
Series KFUtronic
400 V - 0,55 bis 22 kW
230 V - 0,55 bis 1,5 kW
KN 6400.2003

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Table of contents
1Important information .......................................................................... 5
1.1 Notes on the documentation ......................................................................................5
1.1.1 Other applicable documents................................................................................5
1.1.2 Storing the documentation ..................................................................................5
1.1.3 Symbols...............................................................................................................5
1.2 Qualified staff.............................................................................................................6
1.3 CE-marking ................................................................................................................6
1.4 Safety instructions ......................................................................................................6
1.4.1 General informations ...........................................................................................6
1.4.2 Transport & storage.............................................................................................7
1.4.3 Commissioning....................................................................................................8
1.4.4 Operation............................................................................................................8
1.4.5 Repairs ................................................................................................................9
1.4.6 Disassembly & disposal........................................................................................9
1.5 Proper Use ...............................................................................................................10
1.6 Responsibility............................................................................................................10
2General description............................................................................. 11
2.1 Scope of delivery ......................................................................................................11
3Technical data .................................................................................... 12
3.1 Overview of installation sizes....................................................................................12
3.2 General data.............................................................................................................13
3.3 Specification of interfaces .........................................................................................15
4Installation ......................................................................................... 16
4.1 Safety instructions during installation ........................................................................16
4.2 Installation requirements...........................................................................................16
4.2.1 Suitable ambient conditions............................................................................... 16
4.2.2 Suitable installation location for the motor integrated drive control ....................17
4.2.3 Basic connection versions...................................................................................17
4.2.4 Short circuit and ground protection ...................................................................18
4.2.5 Wiring instructions ............................................................................................18
4.2.6 Preventing electromagnetic interferences...........................................................19
4.3 Installing the drive control integrated in the motor....................................................19
4.3.1 Mechanical installation ......................................................................................19
4.3.2 Power connection..............................................................................................21
4.3.3 Connections for brake resistor ...........................................................................21
4.3.4 Control connections ..........................................................................................22
4.3.5 Terminal connection diagram.............................................................................24

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4.4 Installing the wall-mounted drive control ..................................................................25
4.4.1 Suitable installation location for wall mounting .................................................. 25
4.4.2 Mechanical Installation ......................................................................................26
4.4.3 Power connection..............................................................................................28
4.4.4 Brake copper .....................................................................................................28
4.4.5 Control connections ..........................................................................................28
5Commissioning................................................................................... 29
5.1 Safety instructions during commissioning.................................................................. 29
5.2 Communication........................................................................................................29
5.3 Block diagram...........................................................................................................30
5.4 Start-up steps ...........................................................................................................31
6Parameter .......................................................................................... 32
6.1 Safety instructions for dealing with parametern.........................................................32
6.2 General information on parameters...........................................................................32
6.2.1 Explanation of operating modes ........................................................................32
6.2.2 Structure of the parameter tables.......................................................................36
6.3 Application parameters .............................................................................................37
6.3.1 Basic parameters................................................................................................ 37
6.3.2 Preset speed mode ............................................................................................42
6.3.3 Motorized potentiometer...................................................................................43
6.3.4 PID process controller........................................................................................44
6.3.5 Analogue inputs ................................................................................................46
6.3.6 Digital inputs..................................................................................................... 48
6.3.7 Analogue output ...............................................................................................48
6.3.8 Digital outputs................................................................................................... 50
6.3.9 Relay.................................................................................................................51
6.3.10 External fault .....................................................................................................53
6.3.11 Motor current limit ............................................................................................54
6.3.12 Stall detection.................................................................................................... 55
6.4 Performance parameters...........................................................................................56
6.4.1 Motor data........................................................................................................ 56
6.4.2 I²T..................................................................................................................... 58
6.4.3 Switching frequency ..........................................................................................59
6.4.4 Controller data ..................................................................................................59
6.4.5 Squared characteristic........................................................................................ 61
6.4.6 Synchronous motor controller data .................................................................... 62
7Error detection and troubleshooting .................................................... 63
7.1 List of the LED flash codes for error recognition ........................................................63
7.2 List of errors and system errors .................................................................................64

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8Optional accessories ........................................................................... 67
8.1 Adapter plates ..........................................................................................................67
8.1.1 Motor-adapter plates ........................................................................................67
8.1.2 Motor adapter plates (specific) ..........................................................................69
8.1.3 Wall adapter plates (standard) ........................................................................... 69
8.2 MMI manual control unit..........................................................................................71
8.3 PC communication cable ..........................................................................................71
9Guidelines, Norms and Standards ........................................................ 72
9.1 EMV limit classes ......................................................................................................72
9.2 Classification acc. to IEC/EN 61800-3 .......................................................................72
9.3 Standards and guidelines ..........................................................................................73

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1Important information
This chapter contains important information on the safe handling of the product and on the op-
erating manual.
1.1 Notes on the documentation
The following notes are a directory for the overall documentation.
We assume no liability for any damage resulting from the non-observance of this manual.
Provide this manual to the operator of the system so that it will be available when required.
1.1.1 Other applicable documents
This refers to all manuals that describe how to operate the drive control system, and any other
manuals for equipment parts in use (i. e. the motor)
1.1.2 Storing the documentation
Store this manual and all other applicable documents safely so they will be available when re-
quired.
1.1.3 Symbols
DANGER!
Note on safety: Non-observance will result in death or serious injury.
WARNING!
Note on safety: Non-observance can lead to death or serious injury.
ATTENTION!
Non-observance can result in material being damaged and can affect the function of the drive
control.
Supplemental information on operating the drive control.
Action: This symbol indicates that you have to perform an action. The required actions are
described step by step.
This symbol indicates the result of an action.

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1.2 Qualified staff
In the context of this operating manual and the notes relating to the product itself, qualified
staff refers to electronic specialists that are familiar with the installation, assembly, start-up and
operation of the drive control and with the dangers involved, and whose specialist training and
knowledge of relevant standards and regulations provide them with the necessary abilities.
1.3 CE-marking
With the CE marking, we as the manufacturer of the device confirm that the drive control meets
the basic requirements of the following guidelines
– Directive on Electromagnetic Compatibility (Directive 2004/108/EC of the Council)
– Low Voltage Directive (Directive 2006/95/EC of the Council))
You will find the declaration of conformity at the end of this manual.
1.4 Safety instructions
The following warnings, precautionary measures and comments are provided for your safety
and serve to prevent damage to the drive control and the components connected to it. This
chapter contains warnings and notes that are generally applicable when handling drive controls.
They are separated into general information, transport & storage, start-u
p
, o
p
eration, re
p
air and
dismantling & disposal.
Specific warnings and comments that apply to specific activities are placed at the start of the
appropriate chapters and are repeated and enhanced at different critical points within these
chapters.
Please read this information carefully, as it is provided for your personal safety and will also sup-
port a longer life for the drive control and the connected devices.
1.4.1 General informations
WARNING!
This drive control contains dangerous voltage and controls revolving mechanical
p
arts that
may be dangerous.
Disregarding warnings or non-compliance with the notes in this manual can result in death, se-
rious injury or serious damage to property.
Only appropriately trained persons may perform work on this drive control.
These persons must be familiar with all safety instructions and all measures relating to
installation, operation and maintenance that are contained in this manual.
Proper and safe operation of the drive control requires proper transport, installation,
operation and maintenance.
WARNING!
Danger of fire or electric shock.
Improper use, changes and the use of spare parts and accessories not sold or recommended by
the manufacturer of the drive control can cause fire, electric shock and injury.
The cooling elements in the drive control and motor can reach temperatures above 70 °C.
Ensure that there is sufficient distance from neighbouring components during installation.
Allow sufficient cooling time before working on the drive control or the motor. If neces-
sary, protection should be installed against accidental contact.

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ATTENTION!
The drive control can only be operated safely if the required environmental conditions listed in
the “Suitable environmental conditions” chapter are fulfilled.
ATTENTION!
This operating manual must be accessible near the device and available to all users.
ATTENTION!
Please read these safety instructions and warnings before installation and start-up; this also ap-
plies to all warning signs attached to the device. Make sure that the warning signs are legible
and replace missing or damaged signs.
1.4.2 Transport & storage
ATTENTION!
Risk of damaging the drive control.
If the notes are not observed, the drive control could be damaged and destroyed during subse-
quent start-up.
Proper and safe operation of the drive control requires proper storage, set-up and assem-
bly as well as careful operation and maintenance.
The drive control must be protected from mechanical jolts and vibrations during transport
and storage. Protection from impermissible temperatures (see technical data) must also be
guaranteed.

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1.4.3 Commissioning
WARNING!
Danger of injury through electric shock.
Non-observance of warnings can result in serious injury or damage.
Only hard-wired network connections are permitted. The device must be grounded (DIN
EN 61140; VDE 0140-1).
Fre
q
uency converters of the INVEOR series can contain contact currents (leakage currents)
> 3.5 mA. According to chapter 4.3.5.5.2 of DIN EN 61800-5-1, a reinforced protective
ground wire (at least 10 mm2Cu or 16 mm2Al) must be used.
If three-
p
hase fre
q
uency converters are in use, it is not
p
ermitted to use standard ty
p
e A FI
protection switches, or RCDs (residual current-operated protective devices) to
p
rotect from
direct or indirect contact. According to DIN VDE 0160, section 5.5.2 and EN 50178, sec-
tion 5.2.11.1, the FI protection switch must be universal current sensitive (RCD type B).
The following terminals can lead to dangerous currents even when the motor is not run-
ning:
oSupply terminals X1: L1, L2, L3
oMotor connection terminals X2: U, V, W
oConnecting terminals X6, X7: Relay contacts for relays 1 and 2
If different voltages are in use (e.g. +24 V/230 V), crossing cable runs are never
p
ermitted.
The operator must also ensure compliance with the applicable regulations (e.g. double or
strengthened insulation acc. to DIN EN 61800-5-1).
The drive control contains components susceptible to electrical discharge. These compo-
nents can be destroyed through improper handling; therefore, precautionary measures
against electrostatic charges must be taken when work is performed on these components.
1.4.4 Operation
WARNING!
Danger of injury due to electric shocks or restarting motors.
Non-observance of warnings can result in serious injury or damage.
Observe the following instructions during operation:
oThe drive control works with high voltages.
oWhen electrical devices are operated, some parts of them are always subject to dan-
gerous voltage.
oEmergency off equipment according to DIN EN 60204-1; VDE 0113-1:2007-06 has to
be functional in all operating modes of the control device. Resetting the emergency
stop equipment may not result in uncontrolled or undefined restarting.
oIn order to ensure safe disconnection from the mains, the mains cable has to be all-
pole disconnected from the drive control.
oCertain parameter settings can result in the drive control restarting automatically after
the supply voltage has failed.

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ATTENTION!
Risk of damaging the drive control.
If the notes are not observed, the drive control could be damaged and destroyed during subse-
quent start-up.
Observe the following instructions during operation:
oThe motor parameters, especially the l2T settings, have to be configured properly to
provide proper motor overload protection.
oThe drive control contains internal motor overload protection. See P0610 (level 3) and
P0335. I2T is ON by default. Motor overload protection can also be ensured via an ex-
ternal PTC.
oThe drive control may not be used as “Emergency-off equipment” (see DIN EN 60204-
1; VDE 0113-1:2007-06).
Drive controls are maintenance-free if operated properly. If the air contains dust, the cooling
fins of the motor and drive control have to be cleaned regularly.
1.4.5 Repairs
ATTENTION!
Risk of damaging the drive control.
If the notes are not observed, the drive control could be damaged and destroyed during subse-
quent start-up.
Repairs of the drive control may only be performed by your KFU-tronic suppliers service.
WARNING!
Danger of injury through electric shock.
Non-observance of warnings can result in serious injury or damage.
When the drive control is disconnected from the mains voltage, parts and connections of
the device subject to current may not be touched immediately in case the condensers are
still charged.
1.4.6 Disassembly & disposal
Screw and snap-on connections are easy to release and allow the drive control to be
dismantled into its individual parts. These parts can be sorted for recycling.
Please comply with local regulations during disposal.
Components with electronic parts may not be placed in normal household waste.
They have to be collected separately with old electric and electronic equipment
in accordance with applicable legislation.

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1.5 Proper Use
If the device is installed in a machine, converters may not be started up (i.e. intended operation
may not begin) until it has been determined that the machine complies with the regulations in
EC Directive 2006/42/EC (machine directive); DIN EN 60204-1; VDE 0113-1:2007-06 must be
observed.
Start-up (i.e. beginning intended operation) is only permitted if the EMV Directive
(2004/108/EC) is complied with.
The harmonised standards of series DIN EN 50178; VDE 0160:1998-04 have to be applied for
this drive control along with DIN EN 60439-1; VDE 0660-500:2005-01.
This drive control may not be operated in areas where there is a danger of explosion.
Repairs may only be performed by authorised repair bodies. Independent and unauthorised in-
tervention can result in death, injury and damage. The warranty provided by KOSTAL will be in-
validated in this case.
External mechanical loads such as stepping on the housing are not permitted.
Using drive units in equipment that is not fixed is considered as an exceptional
environmental condition and is only permitted if allowed by the standards and
guidelines applicable on site.
1.6 Responsibility
As a basic principle, electronic devices are not fail-proof. The operator and/or the contractor set-
ting up the machine or system is responsible for ensuring that the drive is moved to a safe state
if the device fails.
Section “Electrical equipment of machines” in DIN EN 60204-1; VDE 0113-1:2007-06, “Safety
of machinery” describes the safety requirements for electric control units. These are
p
rovided fo
r
the safety of persons and machines, and in order to retain the functional capability of the ma-
chine or system; they have to be observed.
The function of an emergency-off feature does not have to result in the power supply for the
drive being switched off. In order to prevent danger, it can be useful to keep individual drives in
operation or initiate specific safety procedures. The performance of emergency-off measures is
evaluated by means of a risk assessment for the machine or system and its electrical equipment,
and is determined with a selection of the circuit category according to DIN EN 13849 “Safety of
machinery – Safety-related parts of control systems”.

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2General description
The inverter KFU-tronic is a device for the speed control of three-phase asynchronous motors.
The drive control can be integrated in the motor (with the standard adapter plate) or close to
the motor (with the wall installation adapter plate).
The permitted ambient temperatures specified under Technical data refer to operation at nomi-
nal load. In many cases of application, higher temperatures may be permitted after a detailed
technical analysis. These have to be approved by your supplier for KFU-tronic for each individual
case.
2.1 Scope of delivery
Compare your product to the scope of delivery described below.
1
2
3
4
7
6
5
8
1 Drive control (variant) 5 Adapter plate with connection terminal
2 Poly bag with fastening bolts 6 Poly bag with connection material for
3 Cable screw connections terminal block
4 Operation manual 7 seal (not part of the scope of delivery)
8 Motor (not part of the scope of delivery)
Note: Communication boards are only mounted by factory and can not be mounted subse
q
uen
t
in the field.

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3Technical data
3.1 Overview of installation sizes
The drive controls are available in the following performance classes and under the specified in-
stallation size names.
Installation size A B C D
Recommended
motor power (kW)
0,55 / 0,75 /
1,1 / 1,5 2,2 /3,0 / 4,0 5,5 / 7,5 11,0 / 15,0 / 18,5 / 22,0
Dimensions
(L x B x H in mm) 233 x 153 x 120 270 x 189 x 133 307 x 223 x 181 414 x 294 x 238
L
H
B

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3.2 General data
Installations size A B
Rated motor power
[kW] / 4-pole motor 0,55 0,75 1,1 1,5 2,2 3,0 4,0
Ambient temperature
[°C] -25 (non condensing) to +50 (without derating) *
Mains voltage [V] 3~ 200 -10% … 480 +10%
Mains frequency [Hz] 47 to 63
Network configura-
tions TN/TT
Mains current [A] 1,4 1,9 2,6 3,3 4,6 6,2 7,9
rated current, eff.
[INat 8 kHz/400 V] 1,7 2,3 3,1 4,0 5,6 7,5 9,5
Min. brake resistance
[] 100 50
Max. current eff 150 % of th rated current for 60 sec
Switching frequency
[kHz] 4, 8, 16, (factory setting 8)
Rotating field
frequency [Hz] 0 - 400
Protective functions Undervoltage, Overvoltage, I2t restriction, short circuit,
motor –inverter temperature, anti-tilt protection, stall protection
Process control PID controller, free configuration
Dimensions
[L x W x H in mm] 233 x 153 x 120 270 x 189 x 133
Weight incl. adapter
plate [kg] 3,9 5,0
Protection type IP65
EMV approvals acc. to DIN EN 61800-3, class C2
* in terms of the UL 508C standard, please see chapter 9.4!
(technical changes reserved)

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Installations size C
Rated motor power
[kW] / 4-pole motor 5,5 7,5 11 15 18,5 22
Ambient temperature
[°C] -25 (non condensing) to +50 (without derating) *
Mains voltage [V] 3~ 200 -10% … 480 +10%
Mains frequency [Hz] 47 to 63
Network configurations TN/TT
Mains current [A] 10,8 14,8 23,3 28,3 33,3 39,9
rated current, eff.
[INat 8 kHz/400 V] 13,0 17,8 28,0 34,0 40,0 48,0
Min. brake resistance
[] 50 50
Max. current eff 150 % des rated current for 60 sec
Switching frequency
[kHz] 4, 8, 16, (factory setting 8)
Rotating field
frequency [Hz] 0 - 400
Protective functions Undervoltage, Overvoltage, I2t restriction, short circuit,
motor –inverter temperature, anti-tilt protection, stall protection
Process control PID controller, free configuration
Dimensions
[L x W x H in mm] 270 x 189 x 133 307x233x181
Weight incl. adapter
plate [kg] 5,0 8,7
Protection type 65
EMV approvals acc. to DIN EN 61800-3, class C2
* in terms of the UL 508C standard, please see chapter 9.4!
(technical changes reserved)

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3.3 Specification of interfaces
Designation Function
Digital inputs 1–4 - Switching level low < 5 V / high > 15 V
- Imax (at 24 V) = 3 mA
- Rin = 8.6 kOhm
Analogue inputs 1, 2 - In +/- 10 V or 0–20 mA
- In 2–10 V or 4–20 mA
- Resolution 10 Bit
- Rin = 10 kOhm
Digital outputs 1, 2 - Short-circuit proof
- Imax = 20 mA
Relays 1, 2 1 changeover contact (NO/NC)
maximum switching power *:
- at ohmic load (cos ••= 1): 5 A at ~230 V or = 30 V
- under inductive load (cos ••= 0.4 and L/R = 7 ms): 2 A at ~230 V
or
= 30 V
Maximum reaction time: 7 ms ± 0.5 ms
Electric life: 100,000 switching cycles
Analogue output 1
(current)
- Short-circuit proof
- Iout = 0.20 mA
- burden = 500 ohm
Analogue output 1
(voltage)
- Short-circuit proof
- Uout = 0..10 V
-lmax = 10 mA
Power supply 24 V - Auxiliary voltage U = 24V DC
- short-circuit proof
- Imax = 100 mA
- external feeding of 24 V possible
Power supply 10 V - Auxiliary voltage U = 10 V DC
- short-circuit proof
- Imax = 30 mA
* in terms of the UL 508C standard, the maximum allowed is 2 A!

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4Installation
4.1 Safety instructions during installation
WARNING!
Installation may be performed only be appropriately qualified employees who are trained
in the set-up, installation, start-up and operation of the product. Work performed on the
drive control by unqualified staff and non-observance of warnings can result in serious in-
jury or damage.
The device must be grounded in accordance with DIN EN 61140; VDE 0140, NEC and
other relevant standards. Mains connections must be hardwired.

4.2 Installation requirements
4.2.1 Suitable ambient conditions
Altitude of the installation
site:
up to 1,000 m above sea level / over 1,000 m with reduced per-
formance (1% per 100 m) (max. 2,000 m)
Ambient temperature: -25 °C to +50 °C (different ambient temperatures may be possi-
ble in individual cases)
Relative humidity: ≤96%, condensation not permitted
Resistance to vibration
and shock:
acc. to FN 942 017 part 4; 5.3.3.3 Combined test 2;
5...200 Hz for sinusoidal oscillation
Electromagnetic
compatibility:
Immune to interference acc. to DIN EN 61800-3
Cooling: Surface cooling:
installation sizes A to C: free convection;
installation size C: optionally with integrated fan
installation size D: with integrated fans
Make certain that the housing type (protection type) is suitable for the operating environ-
ment:
oEnsure that the seal between the motor and the adapter plate is inserted correctly.
oAll unused cable screw connections have to be sealed.
oCheck that the cover of the drive control is closed and bolted down tightly.
Although the drive control can, in principle, be subse
q
uently
p
ainted, the user must nevertheless
check the material compatibility of the paint that is to be used. A failure to comply with this can
eventually result in the loss of the protection class (particularly in respect of seals and fibre-optic
elements). The standard colour is black (RAL 9005).
Disassembling the circuit boards (even for the purpose of painting the housing sections) renders
the warranty void!
Mounting points and sealing surfaces must be kept free of paint for purposes of EMC and
earthing!

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4.2.2 Suitable installation location for the motor integrated drive control
Stellen Sie sicher, dass der Motor mit motorintegriertem Antriebsregler nur in den im nach-
folgenden Bild gezeigten Ausrichtungen montiert und betrieben wird.
4.2.3 Basic connection versions
Star or triangle connection for drive controls integrated in the motor
ATTENTION!
Risk of damaging the drive control.
The correct phase sequence must be observed when the drive control is connected, as the mo-
tor could otherwise be overloaded.
Ensure that the phase sequence is correct when connecting the motor.
The supplied assembly material can be used to connect core end sleeves and cable shoes. Fig. 4
shows the different connection options.

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18
Unused open cable ends in the motor terminal box must be insulated.
If a PTC or Klixxon is used, the electric jumper fitted on the connection terminal for the
PTC in the delivery state has to be removed.
The cross-section of the supply line has to be designed according to the transfer category and
the maximum permitted current.
The contractor starting up the device must ensure the power line protection.
4.2.4 Short circuit and ground protection
The drive control contains an internal short circuit and ground protection.
4.2.5 Wiring instructions
The control connections of the application card are located inside the drive control.
The configuration can vary, depending on the version.
Terminals: Plug terminal clamp with activation button
(slot screwdriver, max. width 2.5 mm)
Connection cross-section: 0.5 to 1.5 mm2, single-wire, AWG 20 to AWG 14
Connection cross-section: 0.75 to 1.5 mm2, fine-wired, AWG 18 to AWG 14
Connection cross-section: 0.5 to 1.0 mm2, fine-wired, (core end sleeves with and
without plastic collar)
Length of stripped insulation: 9 to 10 mm
The terminals for the mains cable are located inside the drive control. The KFU-tronic also has
the option of being equipped with terminals for connecting a brake resistor.
The configuration can vary, depending on the version.
Core end sleeves with plastic collars and lugs are recommended.
Terminals: Spring force connection
(slot screwdriver, max. width 2.5 mm)
Connection cross-section: 0.2 to 10 mm2, rigid, 0.2 to 6 mm2, flexible
Connection cross-section: 0.25 to 6 mm2
(core end sleeves without plastic collar)
Connection cross-section: 0.25 to 4 mm2
(core end sleeves with plastic collar)
Connection cross-section: 0.25 to 1.5 mm2 for 2 conductors of the same cross-section
(twin-core end sleeves with plastic collar)
Conductor cross-section: AWG 24 to AWG 8
Length of stripped insulation: 15 mm

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19
4.2.6 Preventing electromagnetic interferences
Screened lines should be used for control circuits where possible. The screening should be ap-
plied to the line end with special care without laying the leads across longer stretches without
screening.
Screening for analogue target values should only be applied on one side of the drive control.
In principle, control lines should always be laid as far away from power-conducting lines; it may
be necessary to use separate ducts. If lines do cross, they should do so at an angle of 90°.
Upstream circuit elements, such as protector switches and brake coils, or circuit elements that
are operated via the outputs of the drive control have to be interference-suppressed. RC circuits
are suitable as a.c. voltage protector switches, while free-wheeling diodes or varistors are usually
used as dc voltage protector switches. These interference suppression devices are attached di-
rectly to the protector switch coils. Power supply for a mechanical brake may not be carried in
the same cable.
Power connections between the drive control and the motor should always be screened or rein-
forced, and the screening has to have large-scale grounding at both ends. The use of EMV cable
screw connections is recommended. These are not part of the scope of delivery.
Wiring suitable for EMV must be ensured.
4.3 Installing the drive control integrated in the motor
4.3.1 Mechanical installation
Proceed as follows when mechanically installing the drive control:
1. Open the standard motor connection box.
2. Disconnect the wires from the connection terminals. Memorise or write down
the connection sequence.
3. Remove the motor terminal block if necessary.
4. Remove the fastening screws of the connection housing and remove it.
Make sure that the seal is not damaged.
Assembly sequence: Connection box – adapter plate
4
1
2
2
3