Danfoss VLT FC 103 User manual

MAKING MODERN LIVING POSSIBLE
Instruction Manual
VLT®Refrigeration Drive FC 103
1.1–90 kW
www.danfoss.com/drives

Contents
1 Introduction 4
1.1 Purpose of the Manual 4
1.2 Additional Resources 4
1.3 Document and Software Version 4
1.4 Product Overview 4
1.5 Approvals and Certifications 7
1.6 Disposal Instruction 7
2 Safety 8
2.1 Safety Symbols 8
2.2 Qualified Personnel 8
2.3 Safety Precautions 8
3 Mechanical Installation 10
3.1 Unpacking 10
3.2 Installation Environments 10
3.3 Mounting 11
4 Electrical Installation 13
4.1 Safety Instructions 13
4.2 EMC-compliant Installation 13
4.3 Grounding 13
4.4 Wiring Schematic 15
4.5 Access 17
4.6 Motor Connection 17
4.7 AC Line Power Connection 18
4.8 Control Wiring 18
4.8.1 Control Terminal Types 19
4.8.2 Wiring to Control Terminals 20
4.8.3 Enabling Motor Operation (Terminal 27) 20
4.8.4 Voltage/Current Input Selection (Switches) 21
4.8.5 Safe Torque Off (STO) 21
4.8.6 RS-485 Serial Communication 21
4.9 Installation Check List 22
5 Commissioning 23
5.1 Safety Instructions 23
5.2 Applying Power 23
5.3 Local Control Panel Operation 24
Contents Instruction Manual
MG16E322 Danfoss A/S © Rev. 2014-04-10 All rights reserved.

5.3.2 LCP Layout 24
5.3.3 Parameter Settings 26
5.3.4 Uploading/Downloading Data to/from the LCP 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 Set-up in VVCplus 28
5.4.5 Automatic Energy Optimization (AEO) 29
5.4.6 Automatic Motor Adaptation (AMA) 30
5.5 Checking Motor Rotation 30
5.6 Local Control Test 30
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 45
8 Specifications 48
8.1 Electrical Data 48
8.1.1 Line Power Supply 3x200–240 V AC 48
8.1.2 Line Power Supply 3x380–480 V AC 50
8.1.3 Line Power Supply 3x525–600 V AC 52
8.2 Line Power Supply 54
8.3 Motor Output and Motor Data 55
8.4 Ambient Conditions 55
8.5 Cable Specifications 55
8.6 Control Input/Output and Control Data 56
8.7 Connection Tightening Torques 59
8.8 Fuses and Circuit Breakers 60
8.9 Power Ratings, Weight and Dimensions 67
9 Appendix 69
9.1 Symbols, Abbreviations and Conventions 69
9.2 Parameter Menu Structure 69
Contents Instruction Manual
Danfoss A/S © Rev. 2014-04-10 All rights reserved. MG16E322

Index 73
Contents Instruction Manual
MG16E322 Danfoss A/S © Rev. 2014-04-10 All rights reserved.

1 Introduction
1.1 Purpose of the Manual
This instruction manual provides information for safe
installation and commissioning of the adjustable frequency
drive.
This instruction manual is intended for use by qualified
personnel.
Read and follow the instruction manual to use the
adjustable frequency drive safely and professionally, and
pay particular attention to the safety instructions and
general warnings. Keep this instruction manual available
with the adjustable frequency drive at all times.
VLT®is a registered trademark.
1.2 Additional Resources
Other resources are available to understand advanced
adjustable frequency drive functions and programming.
•The VLT
®
Programming Guide provides greater
detail on working with parameters and many
application examples.
•The VLT
®
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.danfoss.com/BusinessAreas/DrivesSo-
lutions/Documentations/VLT+Technical+Documentation.htm
for listings.
1.3 Document and Software Version
This manual is regularly reviewed and updated. All
suggestions for improvement are welcome. Table 1.1 shows
the document version and the corresponding software
version.
Edition Remarks Software version
MG16E3xx Replaces MG16E2xx 1.21
Table 1.1 Document and Software Version
1.4 Product Overview
1.4.1 Intended Use
The adjustable frequency drive 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
adjustable frequency drive, the motor and
equipment driven by the motor.
•system and motor status surveillance.
The adjustable frequency drive can also be used for motor
protection.
Depending on configuration, the adjustable frequency
drive can be used in standalone applications or form part
of a larger appliance or installation.
The adjustable frequency drive is allowed for use in
residential, industrial and commercial environments in
accordance with local laws and standards.
NOTICE!
In a residential environment, this product can cause
radio interference, in which case supplementary
mitigation measures can be required.
Foreseeable misuse
Do not use the adjustable frequency drive in applications
which are non-compliant with specified operating
conditions and environments. Ensure compliance with the
conditions specified in chapter 8 Specifications.
Introduction Instruction Manual
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1
1

1.4.2 Exploded Views
1
23
4
5
6
7
8
9
10
11
12
13
14
8
15
16
17
18
130BB492.10
1 Local control panel (LCP) 10 Motor output terminals 96 (U), 97 (V), 98 (W)
2 RS-485 serial bus connector (+68, -69) 11 Relay 2 (04, 05, 06)
3 Analog I/O connector 12 Relay 1 (01, 02, 03)
4 LCP input plug 13 -
5 Analog switches (A53), (A54) 14 Line power input terminals 91 (L1), 92 (L2), 93 (L3)
6 Cable shield connector 15 USB connector
7 Decoupling plate 16 Serial bus terminal switch
8 Grounding clamp (PE) 17 Digital I/O and 24 V power supply
9 Shielded cable grounding clamp and strain relief 18 Cover
Figure 1.1 Exploded View Enclosure Type A, IP20
Introduction Instruction Manual
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11

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
61 68 39 42 50 53 54
06 05 04 03 02 01
130BB493.10
1 Local control panel (LCP) 11 Relay 2 (04, 05, 06)
2 Cover 12 Lifting ring
3 RS-485 serial bus connector 13 Mounting slot
4 Digital I/O and 24 V power supply 14 Grounding clamp (PE)
5 Analog I/O connector 15 Cable shield connector
6 Cable shield connector 16 -
7 USB connector 17 -
8 Serial bus terminal switch 18 Motor output terminals 96 (U), 97 (V), 98 (W)
9 Analog switches (A53), (A54) 19 Line power input terminals 91 (L1), 92 (L2), 93 (L3)
10 Relay 1 (01, 02, 03)
Figure 1.2 Exploded View Enclosure Types B and C, IP55 and IP66
Introduction Instruction Manual
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1
1

1.4.3 Block Diagram of the Adjustable
Frequency Drive
Figure 1.3 is a block diagram of the internal components of
the adjustable frequency drive. See Table 1.2 for their
functions.
Figure 1.3 Adjustable Frequency Drive Block Diagram
Area Title Functions
1 Line power input
•3-phase AC line power supply
to the adjustable frequency
drive
2 Rectifier
•The rectifier bridge converts
the AC input to DC current to
supply inverter power
3 DC bus •Intermediate DC bus circuit
handles the DC current
4 DC reactors
•Filter the intermediate DC
circuit voltage
•Prove line transient protection
•Reduce RMS current
•Raise the power factor
reflected 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
Area Title Functions
8 Control circuitry
•Input power, internal
processing, output, and motor
current are monitored to
provide efficient operation
and control
•User interface and external
commands are monitored and
performed
•Status output and control can
be provided
Table 1.2 Legend to Figure 1.3
1.4.4 Enclosure Types and Power Ratings
For enclosure types and power ratings of the adjustable
frequency drives, refer to chapter 8.9 Power Ratings, Weight
and Dimensions.
1.5 Approvals and Certifications
Table 1.3 Approvals and Certifications
More approvals and certifications are available. Contact
local Danfoss partner.
The adjustable frequency drive complies with UL508C
thermal memory retention requirements. For more
information, refer to the section Motor Thermal Protection
in the Design Guide.
1.6 Disposal Instruction
Do not dispose of equipment containing
electrical components together with
domestic waste.
Collect it separately in accordance with
local and currently valid legislation.
Table 1.4 Disposal Instruction
Introduction Instruction Manual
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11

2 Safety
2.1 Safety Symbols
The following symbols are used in this document:
WARNING
Indicates a potentially hazardous situation which could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which could
result in minor or moderate injury. It may also be used
to alert against unsafe practices.
NOTICE!
Indicates important information, including situations that
may result in damage to equipment or property.
2.2 Qualified Personnel
Correct and reliable transport, storage, installation,
operation and maintenance are required for the trouble-
free and safe operation of the adjustable frequency drive.
Only qualified personnel is allowed to install or operate
this equipment.
Qualified personnel is defined as trained staff, who are
authorized to install, commission, and maintain equipment,
systems and circuits in accordance with pertinent laws and
regulations. Additionally, the personnel must be familiar
with the instructions and safety measures described in this
document.
2.3 Safety Precautions
WARNING
HIGH VOLTAGE
Adjustable frequency drives contain high voltage when
connected to AC line power. Failure to perform instal-
lation, start-up, and maintenance by qualified personnel
could result in death or serious injury.
•Installation, start-up, and maintenance must be
performed by qualified personnel only.
WARNING
UNINTENDED START
When the adjustable frequency drive is connected to AC
line power, the motor may start at any time, causing risk
of death, serious injury, equipment, or property damage.
The motor can start by means of an external switch, a
serial bus command, an input reference signal from the
LCP, or after a cleared fault condition.
•Disconnect the adjustable frequency drive from
line power whenever personal safety consider-
ations make it necessary to avoid unintended
motor start.
•Press [Off] on the LCP before programming
parameters.
•The adjustable frequency drive, motor, and any
driven equipment must be in operational
readiness when the adjustable frequency drive
is connected to AC line power.
Safety Instruction Manual
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22

WARNING
DISCHARGE TIME
The adjustable frequency drive contains DC link
capacitors that can remain charged even when the
adjustable frequency drive is not powered. Failure to
wait the specified time after power has been removed
before performing service or repair work could result in
death or serious injury.
1. Stop motor.
2. Disconnect AC line power, permanent magnet
type motors, and remote DC link power
supplies, including battery backups, UPS, and
DC link connections to other adjustable
frequency drives.
3. Wait for the capacitors to discharge fully before
performing any service or repair work. The
duration of waiting time is specified in
Table 2.1.
Voltage [V] Minimum waiting time (minutes)
4 15
200–240 1.5–5 hp
[1.1–3.7 kW]
7.5–60 hp
[5.5–45 kW]
380–500 1.5–10 hp
[1.1–7.5 kW]
15–125 hp
[11–90 kW]
525–600 1.5–10 hp
[1.1–7.5 kW]
15–125 hp
[11–90 kW]
High voltage may be present even when the warning LED
indicator lights are off.
Table 2.1 Discharge Time
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
adjustable frequency drive properly could result in death
or serious injury.
•Ensure correct grounding of the equipment by
a certified electrical installer.
WARNING
EQUIPMENT HAZARD
Contact with rotating shafts and electrical equipment
can result in death or serious injury.
•Ensure that only trained and qualified
personnel perform installation, start-up, and
maintenance.
•Ensure that electrical work conforms to national
and local electrical codes.
•Follow the procedures in this manual.
CAUTION
WINDMILLING
Unintended rotation of permanent magnet motors
causes risk of personal injury and equipment damage.
•Ensure that permanent magnet motors are
blocked to prevent unintended rotation.
CAUTION
POTENTIAL HAZARD IN THE EVENT OF INTERNAL
FAILURE
Risk of personal injury when the adjustable frequency
drive is not properly closed.
•Before applying power, ensure all safety covers
are in place and securely fastened.
Safety Instruction Manual
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22

3 Mechanical Installation
3.1 Unpacking
3.1.1 Items Supplied
Items supplied may vary according to product configu-
ration.
•Make sure the items supplied and the
information on the nameplate correspond to the
order confirmation.
•Check the packaging and the adjustable
frequency drive visually for damage caused by
inappropriate handling during shipment. File any
claim for damage with the carrier. Retain
damaged parts for clarification.
130BD796.10
CHASSIS/ IP20 Tamb. 50 C/122 F
V LT
MADE IN
DENMARK
P/N: 134F8447 S/N: 010302G162
1.1 kw / 1.5 HP
IN: 3x200-240V 50/60Hz 5.9A
OUT: 3x0-Vin 0-590Hz 6.6 A
o
CAUTION:
See manual for special condition/mains fuse
voir manual de conditions speclales/fusibles
WARNING:
Stored charge, wait 4 min.
Charge residuelle, attendez 4 min.
* 1 3 4
F
8 4 4 7 0 1 0 3 0 2 G 1 6 2 *
`
Refrigeration Drive
www.danfoss.com
T/C: FC-103P1K1T2E20H1XGXXXXSXXXXAXBXCXXXXDX
o
`
1
2
4
5
6
78
9
10
3
1 Type code
2 Order 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
9 Certifications
10 Discharge time (Warning)
Figure 3.1 Product Nameplate (Example)
NOTICE!
Do not remove the nameplate from the adjustable
frequency drive (loss of warranty).
3.1.2 Storage
Ensure that requirements for storage are fulfilled. 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
lifetime of the adjustable frequency drive. Ensure that
requirements for air humidity, temperature and altitude
are met.
Vibration and Shock
The adjustable frequency drive complies with requirements
for units mounted on the walls and floors of production
premises, as well as in panels bolted to walls or floors.
For detailed ambient conditions specifications, refer to
chapter 8.4 Ambient Conditions.
Mechanical Installation Instruction Manual
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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 Figure 3.2 for clearance
requirements.
a
a
130BD528.10
Figure 3.2 Top and Bottom Cooling Clearance
Enclosure A2-A5 B1-B4 C1, C3 C2, C4
a (ins [mm]) 3.94 [100] 7.87 [200] 7.87 [200] 8.86 [225]
Table 3.1 Minimum Airflow Clearance Requirements
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 hoist rings on the unit, when
provided.
Mounting
1. Ensure that the strength of the mounting location
supports the unit weight. The adjustable
frequency drive allows side-by-side installation.
2. Place 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 flat surface or
to the optional backplate to provide cooling
airflow.
4. Use the slotted mounting holes on the unit for
wall mounting, when provided.
Mounting with backplate and railings
130BD504.10
Figure 3.3 Proper Mounting with Backplate
NOTICE!
Backplate is required when mounted on railings.
NOTICE!
All A, B, and C enclosures allow side-by-side installation.
Exception: if an IP21 kit is used, there has to be a
clearance between the enclosures:
•For enclosures A2, A3, A4, B3, B4 and C3, the
minimum clearance is 2 ins [50 mm].
•For enclosure C4, the minimum clearance is
3 ins [75 mm].
Mechanical Installation Instruction Manual
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33

C
a
b
130BA648.12
f
e
B
A
a
d
e
b
c
Figure 3.4 Top and Bottom Mounting Holes
(See chapter 8.9 Power Ratings, Weight and Dimensions)
a
e
f
130BA715.12
Figure 3.5 Top and Bottom Mounting Holes (B4, C3, C4)
Mechanical Installation Instruction Manual
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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 off and locked out. Failure to run
output motor cables separately or use shielded cables or
metal conduits could result in death or serious injury.
•run output motor cables separately, or
•use shielded cables or metal conduits
CAUTION
SHOCK HAZARD
The adjustable frequency drive can cause a DC current in
the PE conductor. Failure to follow the recommendation
below means the RCD may not provide 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
permitted on the supply side.
NOTICE!
The adjustable frequency drive is supplied with Class 20
motor overload protection.
Overcurrent Protection
•Additional protective equipment such as short-
circuit protection or motor thermal protection
between adjustable frequency drive and motor is
required for applications with multiple motors.
•Input fusing is required to provide short circuit
and overcurrent protection. If not factory-
supplied, fuses must be provided by the installer.
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 167°F [75°C] rated copper wire.
See chapter 8.1 Electrical Data and chapter 8.5 Cable Specifi-
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 Groundingchapter 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
adjustable frequency drive properly could result in death
or serious injury.
•Ensure correct grounding of the equipment by
a certified electrical installer.
For electrical safety
•Ground the adjustable frequency drive in
accordance with applicable standards and
directives.
•Use a dedicated ground wire for input power,
motor power and control wiring.
•Do not ground one adjustable frequency drive to
another in a “daisy chain” fashion.
•Keep the ground wire connections as short as
possible.
•Follow the motor manufacturer wiring
requirements.
•Minimum cable cross-section: AWG 7 [10 mm2]
(or two rated ground wires terminated
separately).
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44

For EMC-compliant installation
•Establish electrical contact between cable shield
and adjustable frequency drive enclosure by
using metal cable connectors or by using the
clamps provided on the equipment (see
chapter 4.6 Motor Connection).
•Use high-strand wire to reduce electrical
interference.
•Do not use pigtails.
NOTICE!
POTENTIAL EQUALIZATION
Risk of electrical interference, when the ground potential
between the adjustable frequency drive and the system
is different. Install equalizing cables between the system
components. Recommended cable cross-section: AWG 6
[16 mm2].
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4.4 Wiring Schematic
130BD807.10
3-phase
power
input
Switch Mode
Power Supply
Motor
Analog Output
Interface
relay1
relay2
ON=Terminated
OFF=Open
91 (L1)
92 (L2)
93 (L3)
PE
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 130/200 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
: Chassis
: Ground
**
240 V AC, 2 A
400 V AC, 2 A
*
Figure 4.1 Basic Wiring Schematic
A=Analog, D=Digital
*Terminal 37 (optional) is used for Safe Torque Off. For Safe Torque Off installation instructions, refer to the VLT
®
Adjustable
Frequency Drives - Safe Torque Off Instruction Manual.
**Do not connect cable shield.
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130BD529.11
1
2
3
4
5
6
7
8
PE
U
V
W
9
L1
L2
L3
PE
10
11
1 PLC 6 Cable connector
2 Adjustable frequency drive 7 Motor, 3-phase and PE
3 Output contactor 8 Line power, 3-phase and reinforced PE
4 Grounding rail (PE) 9 Control wiring
5 Cable insulation (stripped) 10 Equalizing min. 0.025 in2 [16 mm2]
Figure 4.2 EMC-compliant Electrical Connection
NOTICE!
EMC INTERFERENCE
Run cables for input power, motor wiring and control wiring in three separate metallic conduits. Failure to isolate
power, motor and control cables can result in unintended behavior or reduced performance. Minimum 7.9 in [200 mm]
clearance between power, motor and control cables is required.
Electrical Installation Instruction Manual
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4.5 Access
•Remove cover with a screwdriver (See Figure 4.3)
or by loosening attaching screws (See Figure 4.4).
130BT248.10
Figure 4.3 Access to Wiring for IP20 and IP21 Enclosures
130BT334.10
Figure 4.4 Access to Wiring for IP55 and IP66 Enclosures
See Table 4.1 before tightening the covers.
Enclosure IP55 IP66
A4/A5 2 2
B1/B2 2.2 2.2
C1/C2 2.2 2.2
No screws to tighten for A2/A3/B3/B4/C3/C4.
Table 4.1 Tightening Torques for Covers [Nm]
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 off and locked out. Failure to run
output motor cables separately or use shielded cables or
metal conduits could result in death or serious injury.
•run output motor cables separately, or
•use shielded cables or metal conduits
•Comply with local and national electrical codes
for cable sizes. For maximum wire sizes, see
chapter 8.1 Electrical Data.
•Follow the 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
(e.g., Dahlander motor or slip ring induction
motor) between the adjustable frequency drive
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 fixation and electrical
contact between cable shield and ground.
3. Connect ground wire to the nearest grounding
terminal in accordance with grounding
instructions provided in chapter 4.3 Grounding,
see Figure 4.5.
4. Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W), see Figure 4.5.
5. Tighten terminals in accordance with the
information provided in chapter 8.7 Connection
Tightening Torques.
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44

130BD531.10
U
VW
96
97
98
Figure 4.5 Motor Connection
Figure 4.6 represents line power input, motor, and
grounding for basic adjustable frequency drives. Actual
configurations vary with unit types and optional
equipment.
95
130BB920.10
+DC
BR- B
MAINS
L1 L2 L3
91 92 93
RELAY 1 RELAY 2
99
- LC -
U V W
MOTOR
99
Figure 4.6 Example of Motor, Line Power and Ground Wiring
4.7 AC Line Power Connection
•Size wiring based upon the input current of the
adjustable frequency drive. For maximum wire
sizes, see chapter 8.1 Electrical Data.
•Comply with local and national electrical codes
for cable sizes.
Procedure
1. Connect 3-phase AC input power wiring to
terminals L1, L2, and L3 (see Figure 4.6).
2. Depending on the configuration of the
equipment, input power is connected to the line
power input terminals or the input disconnect.
3. Ground the cable in accordance with grounding
instructions provided in chapter 4.3 Grounding.
4. When supplied from an isolated line power
source (IT line power or floating delta) or TT/TN-S
line power with a grounded leg (grounded delta),
ensure that 14-50 RFI 1 is set to [0] Off to avoid
damage to the intermediate circuit and to reduce
ground capacity currents in accordance with IEC
61800-3.
4.8 Control Wiring
•Isolate control wiring from high power
components in the adjustable frequency drive.
•When the adjustable frequency drive is
connected to a thermistor, ensure that the
thermistor control wiring is shielded and
reinforced/double insulated. A 24 V DC supply
voltage is recommended.
Electrical Installation Instruction Manual
18 Danfoss A/S © Rev. 2014-04-10 All rights reserved. MG16E322
44