Danfoss VLT AQUA Drive FC 202 User manual

ENGINEERING TOMORROW
Operating Guide
VLT®AQUA Drive FC 202
0.25–90 kW
vlt-drives.danfoss.com

Contents
1 Introduction 4
1.1 Purpose of the Operating Guide 4
1.2 Additional Resources 4
1.3 Manual and Software Version 4
1.4 Product Overview 4
1.5 Approvals and Certications 8
1.6 Disposal 8
2 Safety 9
2.1 Safety Symbols 9
2.2 Qualied Personnel 9
2.3 Safety Precautions 9
3 Mechanical Installation 11
3.1 Unpacking 11
3.2 Installation Environments 11
3.3 Mounting 12
4 Electrical Installation 14
4.1 Safety Instructions 14
4.2 EMC-compliant Installation 14
4.3 Grounding 14
4.4 Wiring Schematic 16
4.5 Access 18
4.6 Motor Connection 18
4.7 AC Mains Connection 19
4.8 Control Wiring 19
4.8.1 Control Terminal Types 19
4.8.2 Wiring to Control Terminals 21
4.8.3 Enabling Motor Operation (Terminal 27) 21
4.8.4 Voltage/Current Input Selection (Switches) 22
4.8.5 RS485 Serial Communication 22
4.9 Installation Check List 23
5 Commissioning 24
5.1 Safety Instructions 24
5.2 Applying Power 24
5.3 Local Control Panel Operation 24
5.3.1 Graphic Local Control Panel Layout 24
5.3.2 Parameter Settings 26
Contents Operating Guide
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5.3.3 Uploading/Downloading Data to/from the LCP 26
5.3.4 Changing Parameter Settings 26
5.3.5 Restoring Default Settings 26
5.4 Basic Programming 27
5.4.1 Commissioning with SmartStart 27
5.4.2 Commissioning via [Main Menu] 27
5.4.3 Asynchronous Motor Set-up 28
5.4.4 PM Motor Setup in VVC+28
5.4.5 SynRM Motor Set-up with VVC+29
5.4.6 Automatic Energy Optimization (AEO) 30
5.4.7 Automatic Motor Adaptation (AMA) 30
5.5 Checking Motor Rotation 31
5.6 Local-control Test 31
5.7 System Start-up 31
6 Application Set-up Examples 32
7 Maintenance, Diagnostics, and Troubleshooting 36
7.1 Maintenance and Service 36
7.2 Status Messages 36
7.3 Warning and Alarm Types 38
7.4 List of Warnings and Alarms 39
7.5 Troubleshooting 46
8 Specications 49
8.1 Electrical Data 49
8.1.1 Mains Supply 1x200–240 V AC 49
8.1.2 Mains Supply 3x200–240 V AC 50
8.1.3 Mains Supply 1x380–480 V AC 52
8.1.4 Mains Supply 3x380–480 V AC 53
8.1.5 Mains Supply 3x525–600 V AC 57
8.1.6 Mains Supply 3x525–690 V AC 61
8.2 Mains Supply 64
8.3 Motor Output and Motor Data 64
8.4 Ambient Conditions 65
8.5 Cable Specications 65
8.6 Control Input/Output and Control Data 65
8.7 Connection Tightening Torques 68
8.8 Fuses and Circuit Breakers 69
8.9 Power Ratings, Weight, and Dimensions 76
9 Appendix 78
Contents VLT®AQUA Drive FC 202
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9.1 Symbols, Abbreviations, and Conventions 78
9.2 Parameter Menu Structure 78
Index 84
Contents Operating Guide
MG20MD02 Danfoss A/S © 10/2016 All rights reserved. 3

1 Introduction
1.1 Purpose of the Operating Guide
This operating guide provides information for safe instal-
lation and commissioning of the frequency converter.
The operating guide is intended for use by qualied
personnel.
Read and follow the instructions to use the frequency
converter safely and professionally, and pay particular
attention to the safety instructions and general warnings.
Always keep this operating guide available with the
frequency converter.
VLT®is a registered trademark.
1.2 Additional Resources
Other resources are available to understand advanced
frequency converter functions and programming.
•The VLT
®
AQUA Drive FC 202 Programming Guide
provides greater detail on working with
parameters and many application examples.
•The VLT
®
AQUA Drive FC 202 Design Guide
provides detailed information about capabilities
and functionality to design motor control
systems.
•Instructions for operation with optional
equipment.
Supplementary publications and manuals are available
from Danfoss. See www.vlt-drives.danfoss.com/Support/
Technical-Documentation/ for listings.
1.3 Manual and Software Version
This manual is regularly reviewed and updated. All
suggestions for improvement are welcome.
Table 1.1 shows the manual version and the corresponding
software version.
Edition Remarks Software
version
MG20MDxx The parameter list is updated to
reect software version 2.6x. Editorial
update.
2.6x
Table 1.1 Manual and Software Version
1.4 Product Overview
1.4.1 Intended Use
The frequency converter is an electronic motor controller
intended for:
•Regulation of motor speed in response to system
feedback or to remote commands from external
controllers. A power drive system consists of the
frequency converter, the motor, and equipment
driven by the motor.
•System and motor status surveillance.
Depending on conguration, the frequency converter can
be used in standalone applications or form part of a larger
appliance or installation.
The frequency converter is allowed for use in residential,
industrial, and commercial environments in accordance
with local laws, standards, and emission limits as described
in the design guide.
Single-phase frequency converters (S2 and S4) installed
in the EU
The following limitations apply:
•Units with an input current below 16 A and an
input power above 1 kW (1.5 hp) are only
intended for professional use in trades,
professions, or industries and not for sale to the
general public.
•Designated application areas are public pools,
public water supplies, agriculture, commercial
buildings, and industries. All other single-phase
units are only intended for use in private low-
voltage systems interfacing with public supply
only at a medium or high-voltage level.
•Operators of private systems must ensure that
the EMC environment complies with IEC
610000-3-6 and/or the contractual agreements.
NOTICE
In a residential environment, this product can cause
radio interference, in which case supplementary
mitigation measures may be required.
Foreseeable misuse
Do not use the frequency converter in applications, which
are non-compliant with specied operating conditions and
environments. Ensure compliance with the conditions
specied in chapter 8 Specications.
Introduction VLT®AQUA Drive FC 202
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1.4.2 Features
The VLT®AQUA Drive FC 202 is designed for water and
wastewater applications. The range of standard and
optional features includes:
•Cascade control.
•Dry run detection.
•End-of-curve detection.
•SmartStart.
•Motor alternation.
•Deragging.
•2-step ramps.
•Flow conrmation.
•Check valve protection.
•Safe Torque O.
•Low ow detection.
•Pre/post lubrication.
•Pipe ll mode.
•Sleep mode.
•Real-time clock.
•User-congurable info texts.
•Warnings and alarms.
•Password protection.
•Overload protection.
•Smart logic control.
•Dual power rating (high/normal overload).
Introduction Operating Guide
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11

1.4.3 Exploded Views
1
23
4
5
6
7
8
9
10
11
12
13
14
8
15
16
17
18
130BB492.11
1 Local control panel (LCP) 10 Motor output terminals 96 (U), 97 (V), 98 (W)
2 RS485 eldbus connector (+68, -69) 11 Relay 2 (01, 02, 03)
3 Analog I/O connector 12 Relay 1 (04, 05, 06)
4 LCP input plug 13 Brake (-81, +82) and load sharing (-88, +89) terminals
5 Analog switches (A53), (A54) 14 Mains input terminals 91 (L1), 92 (L2), 93 (L3)
6 Cable shield connector 15 USB connector
7 Ground termination plate 16 Fieldbus terminal switch
8 Grounding clamp (PE) 17 Digital I/O and 24 V supply
9 Shielded cable grounding clamp and strain relief 18 Cover
Illustration 1.1 Exploded View Enclosure Size A, IP20
Introduction VLT®AQUA Drive FC 202
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1
2
3
4
5
6
7
8
9
10
11
12 13
16
17
18
19
14
15
FAN MOUNTING
QDF-30
DC- DC+
Removejumper to activate Safe Stop
Max.24 Volt !
12 13 18 19 27 29 32 33 20 37
06 05 04 03 02 01
130BB493.11
61 68 69
39 42 50 53 54 55
1 Local control panel (LCP) 11 Relay 2 (04, 05, 06)
2 Cover 12 Lifting ring
3 RS485 eldbus connector 13 Mounting slot
4 Digital I/O and 24 V supply 14 Grounding clamp (PE)
5 Analog I/O connector 15 Cable shield connector
6 Cable shield connector 16 Brake terminal (-81, +82)
7 USB connector 17 Load sharing terminal (DC bus) (-88, +89)
8 Fieldbus terminal switch 18 Motor output terminals 96 (U), 97 (V), 98 (W)
9 Analog switches (A53), (A54) 19 Mains input terminals 91 (L1), 92 (L2), 93 (L3)
10 Relay 1 (01, 02, 03) – –
Illustration 1.2 Exploded View Enclosure Sizes B and C, IP55 and IP66
Introduction Operating Guide
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11

Illustration 1.3 is a block diagram of the internal
components of the frequency converter.
Area Title Functions
1 Mains input •3-phase AC mains supply to the
frequency converter.
2Rectier
•The rectier bridge converts the
AC input to DC current to supply
inverter power.
3 DC bus •The intermediate DC bus circuit
handles the DC current.
4 DC reactors
•Filter the intermediate DC circuit
voltage.
•Prove mains transient protection.
•Reduce RMS current.
•Raise the power factor reected
back to the line.
•Reduce harmonics on the AC
input.
5 Capacitor bank
•Stores the DC power.
•Provides ride-through protection
for short power losses.
6 Inverter
•Converts the DC into a controlled
PWM AC waveform for a
controlled variable output to the
motor.
7 Output to motor •Regulated 3-phase output power
to the motor.
8 Control circuitry
•Input power, internal processing,
output, and motor current are
monitored to provide ecient
operation and control.
•User interface and external
commands are monitored and
performed.
•Status output and control can be
provided.
Illustration 1.3 Frequency Converter Block Diagram
1.4.4 Enclosure Sizes and Power Ratings
For enclosure sizes and power ratings of the frequency
converters, refer to chapter 8.9 Power Ratings, Weight, and
Dimensions.
1.5 Approvals and Certications
Table 1.2 Approvals and Certications
More approvals and certications are available. Contact the
local Danfoss partner. Frequency converters of enclosure
size T7 (525–690 V) are UL certied for only 525–600 V.
The frequency converter complies with UL 508C thermal
memory retention requirements. For more information,
refer to the section Motor Thermal Protection in the
product-specic design guide.
For compliance with the European Agreement concerning
International Carriage of Dangerous Goods by Inland
Waterways (ADN), refer to ADN-compliant Installation in the
product-specic design guide.
1.6 Disposal
Do not dispose of equipment containing
electrical components together with
domestic waste.
Collect it separately in accordance with
local and currently valid legislation.
Introduction VLT®AQUA Drive FC 202
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11

2 Safety
2.1 Safety Symbols
The following symbols are used in this guide:
WARNING
Indicates a potentially hazardous situation that could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that could
result in minor or moderate injury. It can also be used to
alert against unsafe practices.
NOTICE
Indicates important information, including situations that
can result in damage to equipment or property.
2.2 Qualied Personnel
Correct and reliable transport, storage, installation,
operation, and maintenance are required for the trouble-
free and safe operation of the frequency converter. Only
qualied personnel are allowed to install and operate this
equipment.
Qualied personnel are dened as trained sta, who are
authorized to install, commission, and maintain equipment,
systems, and circuits in accordance with pertinent laws and
regulations. Also, the qualied personnel must be familiar
with the instructions and safety measures described in this
manual.
2.3 Safety Precautions
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualied personnel can result in death or serious
injury.
•Only qualied personnel must perform instal-
lation, start-up, and maintenance.
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor may start at any
time. Unintended start during programming, service, or
repair work can result in death, serious injury, or
property damage. The motor can start via an external
switch, a eldbus command, an input reference signal
from the LCP, or after a cleared fault condition.
To prevent unintended motor start:
•Disconnect the frequency converter from the
mains.
•Press [O/Reset] on the LCP before
programming parameters.
•Completely wire and assemble the frequency
converter, motor, and any driven equipment
before connecting the frequency converter to
AC mains, DC supply, or load sharing.
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors,
which can remain charged even when the frequency
converter is not powered. High voltage can be present
even when the warning LED indicator lights are o.
Failure to wait the specied time after power has been
removed before performing service or repair work can
result in death or serious injury.
•Stop the motor.
•Disconnect AC mains and remote DC-link power
supplies, including battery back-ups, UPS, and
DC-link connections to other frequency
converters.
•Disconnect or lock PM motor.
•Wait for the capacitors to discharge fully. The
minimum duration of waiting time is specied
in Table 2.1.
•Before performing any service or repair work,
use an appropriate voltage measuring device to
make sure that the capacitors are fully
discharged.
Safety Operating Guide
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22

Voltage [V]
Minimum waiting time (minutes)
4 7 15
200–240 0.25–3.7 kW
(0.34–5 hp)
– 5.5–45 kW
(7.5–60 hp)
380–480 0.37–7.5 kW
(0.5–10 hp)
– 11–90 kW
(15–121 hp)
525–600 0.75–7.5 kW
(1–10 hp)
– 11–90 kW
(15–121 hp)
525–690 – 1.1–7.5 kW
(1.5–10 hp)
11–90 kW
(15–121 hp)
Table 2.1 Discharge Time
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly can result in death or
serious injury.
•Ensure the correct grounding of the equipment
by a certied electrical installer.
WARNING
EQUIPMENT HAZARD
Contact with rotating shafts and electrical equipment
can result in death or serious injury.
•Ensure that only trained and qualied personnel
perform installation, start-up, and maintenance.
•Ensure that electrical work conforms to national
and local electrical codes.
•Follow the procedures in this guide.
WARNING
UNINTENDED MOTOR ROTATION
WINDMILLING
Unintended rotation of permanent magnet motors
creates voltage and can charge the unit, resulting in
death, serious injury, or equipment damage.
•Ensure that permanent magnet motors are
blocked to prevent unintended rotation.
CAUTION
INTERNAL FAILURE HAZARD
An internal failure in the frequency converter can result
in serious injury when the frequency converter is not
properly closed.
•Ensure that all safety covers are in place and
securely fastened before applying power.
Safety VLT®AQUA Drive FC 202
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3 Mechanical Installation
3.1 Unpacking
3.1.1 Items Supplied
Items supplied may vary according to product congu-
ration.
•Make sure the items supplied and the information
on the nameplate correspond to the order conr-
mation.
•Check the packaging and the frequency converter
visually for damage caused by inappropriate
handling during shipment. File any claim for
damage with the carrier. Retain damaged parts
for clarication.
130BD666.10
CHASSIS/ IP20 Tamb.45 C/113 F
V LT
MADE IN
DENMARK
R
P/N: 131F6653 S/N: 038010G502
45kW(400V) / 60HP(460V)
IN: 3x380-480V 50/60Hz 82/73A
OUT: 3x0-Vin 0-590Hz 90/80A
o
CAUTION:
See manual for special condition/mains fuse
voir manual de conditions speclales/fusibles
WARNING:
Stored charge, wait 15 min.
Charge residuelle, attendez 15 min.
* 1 3 1
F
6 6 5 3 0 3 8 0 1 0 G 5 0 2 *
`
AQUA Drive
www.danfoss.com
T/C: FC-202P45KT4E20H1XGXXXXSXXXXAXBXCXXXXDX
Listed 76X1 E134261 Ind. Contr. Eq.
o
`
1
2
4
5
6
78
9
10
3
1 Type code
2 Ordering number
3 Serial number
4 Power rating
5Input voltage, frequency, and current (at low/high
voltages)
6Output voltage, frequency, and current (at low/high
voltages)
7 Enclosure type and IP rating
8 Maximum ambient temperature
9Certications
10 Discharge time (Warning)
Illustration 3.1 Product Nameplate (Example)
NOTICE
Do not remove the nameplate from the frequency
converter. Removing the nameplate voids the warranty.
3.1.2 Storage
Ensure that the requirements for storage are fullled. Refer
to chapter 8.4 Ambient Conditions for further details.
3.2 Installation Environments
NOTICE
In environments with airborne liquids, particles, or
corrosive gases, ensure that the IP/type rating of the
equipment matches the installation environment. Failure
to meet requirements for ambient conditions can reduce
the lifetime of the frequency converter. Ensure that
requirements for air humidity, temperature, and altitude
are met.
Vibration and shock
The frequency converter complies with requirements for
units mounted on the walls and oors of production
premises, and in panels bolted to walls or oors.
For detailed ambient conditions specications, refer to
chapter 8.4 Ambient Conditions.
Mechanical Installation Operating Guide
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33

3.3 Mounting
NOTICE
Improper mounting can result in overheating and
reduced performance.
Cooling
•Ensure that top and bottom clearance for air
cooling is provided. See Illustration 3.2 for
clearance requirements.
a
a
130BD528.10
Enclosure A2–A5 B1–B4 C1, C3 C2, C4
a [mm (in)] 100 (3.9) 200 (7.9) 200 (7.9) 225 (8.9)
Illustration 3.2 Top and Bottom Cooling Clearance
Lifting
•To determine a safe lifting method, check the
weight of the unit, see chapter 8.9 Power Ratings,
Weight, and Dimensions.
•Ensure that the lifting device is suitable for the
task.
•If necessary, plan for a hoist, crane, or forklift with
the appropriate rating to move the unit.
•For lifting, use the hoist rings on the unit, when
provided.
Mounting
1. Ensure that the strength of the mounting location
supports the unit weight. The frequency
converter allows side-by-side installation.
2. Locate the unit as near to the motor as possible.
Keep the motor cables as short as possible.
3. Mount the unit vertically to a solid at surface or
to the optional backplate to provide cooling
airow.
4. Use the slotted mounting holes on the unit for
wall mounting, when provided.
Mounting with backplate and railings
130BD504.10
Illustration 3.3 Proper Mounting with Backplate
NOTICE
A backplate is required when mounted on railings.
C
a
b
130BA648.12
f
e
B
A
a
d
e
b
c
Illustration 3.4 Top and Bottom Mounting Holes (See
chapter 8.9 Power Ratings, Weight, and Dimensions)
Mechanical Installation VLT®AQUA Drive FC 202
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a
e
f
130BA715.12
Illustration 3.5 Top and Bottom Mounting Holes (B4, C3, and
C4)
Mechanical Installation Operating Guide
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33

4 Electrical Installation
4.1 Safety Instructions
See chapter 2 Safety for general safety instructions.
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run
together can charge equipment capacitors, even with the
equipment turned o and locked out. Failure to run
output motor cables separately or to use shielded cables
could result in death or serious injury.
•Run output motor cables separately, or
•Use shielded cables.
CAUTION
SHOCK HAZARD
The frequency converter can cause a DC current in the
PE conductor. Failure to follow the recommendation may
lead to the RCD not providing the intended protection.
•When a residual current-operated protective
device (RCD) is used for protection against
electrical shock, only an RCD of Type B is
allowed on the supply side.
Overcurrent protection
•Extra protective equipment, such as short-circuit
protection or motor thermal protection between
frequency converter and motor, is required for
applications with multiple motors.
•Input fusing is required to provide short circuit
and overcurrent protection. If not factory-
supplied, the installer must provide fuses. See
maximum fuse ratings in chapter 8.8 Fuses and
Circuit Breakers.
Wire type and ratings
•All wiring must comply with local and national
regulations regarding cross-section and ambient
temperature requirements.
•Power connection wire recommendation:
Minimum 75 °C (167 °F) rated copper wire.
See chapter 8.1 Electrical Data and chapter 8.5 Cable Speci-
cations for recommended wire sizes and types.
4.2 EMC-compliant Installation
To obtain an EMC-compliant installation, follow the
instructions provided in chapter 4.3 Grounding,
chapter 4.4 Wiring Schematic, chapter 4.6 Motor Connection,
and chapter 4.8 Control Wiring.
4.3 Grounding
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly could result in death or
serious injury.
•Ensure the correct grounding of the equipment
by a certied electrical installer.
For electrical safety
•Ground the frequency converter in accordance
with applicable standards and directives.
•Use a dedicated ground wire for input power,
motor power, and control wiring.
•Do not ground 1 frequency converter to another
in a daisy-chain fashion (see Illustration 4.1).
•Keep the ground wire connections as short as
possible.
•Follow motor manufacturer wiring requirements.
•Minimum cable cross-section: 10 mm2(7 AWG).
Separately terminate 2 ground wires, both
complying with the dimension requirements.
130BC500.10
FC 1
FC 1
FC 2
FC 2
FC 3
FC 3
PE
PE
Illustration 4.1 Grounding Principle
Electrical Installation VLT®AQUA Drive FC 202
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44

For EMC-compliant installation
•Establish electrical contact between the cable
shield and the frequency converter enclosure by
using metal cable glands or by using the clamps
provided on the equipment (see chapter 4.6 Motor
Connection).
•Use high-strand wire to reduce burst transient.
•Do not use pigtails.
NOTICE
POTENTIAL EQUALIZATION
Risk of burst transient when the ground potential
between the frequency converter and the control system
is dierent. Install equalizing cables between the system
components. Recommended cable cross-section: 16 mm2
(6 AWG).
Electrical Installation Operating Guide
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44

4.4 Wiring Schematic
130BD552.12
3-phase
power
input
DC bus Switch Mode
Power Supply
Motor
Analog Output
Interface
relay1
relay2
ON=Terminated
OFF=Open
Brake
resistor
91 (L1)
92 (L2)
93 (L3)
PE
88 (-)
89 (+)
50 (+10 V OUT)
53 (A IN)
54 (A IN)
55 (COM A IN)
0/4-20 mA
12 (+24 V OUT)
13 (+24 V OUT)
37 (D IN)
18 (D IN)
20 (COM D IN)
10 V DC
15 mA 200 mA
+ - + -
(U) 96
(V) 97
(W) 98
(PE) 99
(COM A OUT) 39
(A OUT) 42
(P RS-485) 68
(N RS-485) 69
(COM RS-485) 61
0 V
5V
S801
0/4-20 mA
RS-485
RS-485
03
+10 V DC
0/-10 V DC -
+10 V DC
+10 V DC
0/4-20 mA
0/-10 V DC-
240 V AC, 2 A
24 V DC
02
01
05
04
06
24 V (NPN)
0 V (PNP)
0 V (PNP)
24 V (NPN)
19 (D IN)
24 V (NPN)
0 V (PNP)
27
24 V
0 V
(D IN/OUT)
0 V (PNP)
24 V (NPN)
(D IN/OUT)
0 V
24 V
29
24 V (NPN)
0 V (PNP)
0 V (PNP)
24 V (NPN)
33 (D IN)
32 (D IN)
1 2
ON
A53
ON
21
A54
ON=0/4-20 mA
OFF=0/-10 V DC -
+10 V DC
95
P 5-00
21
ON
S801
(R+) 82
(R-) 81
: Chassis
: PE
**
240 V AC, 2 A
400 V AC, 2 A
*: Ground 1
: Ground 2
: Ground
Illustration 4.2 Basic Wiring Schematic
A=Analog, D=Digital
*Terminal 37 (optional) is used for Safe Torque O. For Safe Torque O installation instructions, refer to the VLT
®
Frequency
Converters - Safe Torque O Operating Guide.
**Do not connect cable shield.
NOTICE
Actual congurations vary with unit types and optional equipment.
Electrical Installation VLT®AQUA Drive FC 202
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130BD529.12
1
2
3
4
5
6
7
8
9
L1
L2
L3
PE
10 11 PE
u
v
w
1 PLC 6 Cable gland
2 Frequency converter 7 Motor, 3-phase, and PE
3 Output contactor 8 Mains, 3-phase, and reinforced PE
4 Grounding rail (PE) 9 Control wiring
5 Cable insulation (stripped) 10 Equalizing minimum 16 mm2(5 AWG)
Illustration 4.3 EMC-compliant Connection of Mains
NOTICE
EMC INTERFERENCE
Use shielded cables for motor and control wiring and separate cables for input power, motor wiring, and control wiring.
Failure to isolate power, motor, and control cables can result in unintended behavior or reduced performance. Minimum
clearance requirement between power, motor, and control cables is 200 mm (7.9 in).
Electrical Installation Operating Guide
MG20MD02 Danfoss A/S © 10/2016 All rights reserved. 17
44

4.5 Access
1. Remove the cover with a screwdriver (See
Illustration 4.4) or by loosening the attaching
screws (See Illustration 4.5).
130BT248.10
Illustration 4.4 Access to Wiring for IP20 and IP21 Enclosures
130BT334.10
Illustration 4.5 Access to Wiring for IP55 and IP66 Enclosures
Tighten the cover screws using the tightening
torques specied in Table 4.1.
Enclosure IP55 IP66
A4/A5 2 (18) 2 (18)
B1/B2 2.2 (19) 2.2 (19)
C1/C2 2.2 (19) 2.2 (19)
No screws to tighten for A2/A3/B3/B4/C3/C4.
Table 4.1 Tightening Torques for Covers [N•m (in-lb)]
4.6 Motor Connection
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run
together can charge equipment capacitors, even with the
equipment turned o and locked out. Failure to run
output motor cables separately or use shielded cables
could result in death or serious injury.
•Run output motor cables separately, or
•Use shielded cables.
•Comply with local and national electrical codes
for cable sizes. For maximum wire sizes, see
chapter 8.1 Electrical Data.
•Follow motor manufacturer wiring requirements.
•Motor wiring knockouts or access panels are
provided at the base of IP21 (NEMA1/12) and
higher units.
•Do not wire a starting or pole-changing device
(for example Dahlander motor or slip ring
asynchronous motor) between the frequency
converter and the motor.
Procedure
1. Strip a section of the outer cable insulation.
2. Position the stripped wire under the cable clamp
to establish mechanical xation and electrical
contact between the cable shield and ground.
3. Connect the ground wire to the nearest
grounding terminal in accordance with the
grounding instructions provided in
chapter 4.3 Grounding, see Illustration 4.6.
4. Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W), see Illustration 4.6.
5. Tighten the terminals in accordance with the
information provided in chapter 8.7 Connection
Tightening Torques.
Electrical Installation VLT®AQUA Drive FC 202
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