Danfoss VLT HVAC Drive FC 102 User manual

MAKING MODERN LIVING POSSIBLE
Instruction Manual
VLT®HVAC Drive FC 102
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 Intended Use 4
1.5 Block Diagram of the Adjustable Frequency Drive 5
1.6 Enclosure Types and Power Ratings 5
1.7 Approvals and Certifications 5
1.8 Disposal Instruction 5
2 Safety 6
2.1 Safety Symbols 6
2.2 Qualified Personnel 6
2.3 Safety Precautions 6
3 Mechanical Installation 8
3.1 Unpacking 8
3.2 Installation Environments 11
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 14
4.5 Access 16
4.6 Motor Connection 16
4.7 AC Line Input Connection 18
4.8 Control Wiring 19
4.8.1 Control Terminal Types 19
4.8.2 Wiring to Control Terminals 20
4.8.3 Enabling Motor Operation (Terminal 27) 21
4.8.4 Voltage/Current Input Selection (Switches) 21
4.8.5 Safe Torque Off (STO) 21
4.8.6 RS-485 Serial Communication 22
Contents VLT®HVAC Drive Instruction Manual
MG11AJ22 - Rev. 2013-09-13

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 25
5.4 Basic Programming 28
5.4.1 Commissioning with SmartStart 28
5.4.2 Commissioning via [Main Menu] 28
5.4.3 Asynchronous Motor Set-up 29
5.4.4 Permanent Magnet Motor Set-up 29
5.4.5 Automatic Energy Optimization (AEO) 30
5.4.6 Automatic Motor Adaptation (AMA) 30
5.5 Checking Motor Rotation 31
5.6 Local Control Test 31
5.7 System Start-up 32
5.8 Maintenance 32
6 Application Set-up Examples 33
7 Diagnostics and Troubleshooting 39
7.1 Status Messages 39
7.2 Warning and Alarm Types 41
7.3 List of Warnings and Alarms 42
7.4 Troubleshooting 49
8 Specifications 52
8.1 Electrical Data 52
8.1.1 Line Power Supply 3x200–240 V AC 53
8.1.2 Line Power Supply 3x380–480 V AC 55
8.1.3 Line Power Supply 3x525–600 V AC 57
8.1.4 Line Power Supply 3 x 525–690 V AC 59
8.2 Line Power Supply 62
8.3 Motor Output and Motor Data 62
8.4 Ambient Conditions 63
8.5 Cable Specifications 63
8.6 Control Input/Output and Control Data 64
Contents VLT®HVAC Drive Instruction Manual
MG11AJ22 - Rev. 2013-09-13

8.7 Connection Tightening Torques 68
8.8 Fuse Specifications 69
8.9 Power Ratings, Weight and Dimensions 76
9 Appendix 78
9.1 Symbols and Abbreviations 78
9.2 Parameter Menu Structure 78
Index 83
Contents VLT®HVAC Drive Instruction Manual
MG11AJ22 - Rev. 2013-09-13

1 Introduction
1.1 Purpose of the Manual
This instruction manual provides information for safe instal-
lation and commissioning of the adjustable frequency drive.
This instruction manual is intended for use by qualified
personnel.
Read and follow the instruction manual in order 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.
1.2 Additional Resources
Other resources are available to understand advanced
adjustable frequency drive functions and programming.
•The Programming Guide provides greater detail on
working with parameters and many application
examples.
•The Design Guide provides detailed information
about capabilities and functionality to design motor
control systems.
•Instructions for operation with optional equipment.
Disclosure, duplication and sale of this document, as well as
communication of its content, are prohibited unless explicitly
permitted. Infringement of this prohibition incurs liability for
damages. All rights reserved with regard to patents, utility
patents and registered designs. VLT® is a registered
trademark.
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
MG11AJxx Replaces MG11AIxx 3.92
Table 1.1 Document and Software Version
1.4 Intended Use
The adjustable frequency drive is an electronic motor
controller that
•regulates 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.
•monitors aspects of system and motor status.
•can 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 intended for use in
residential, industrial and commercial environments in
accordance with local laws and standards. Do not use the
adjustable frequency drive in applications that do not
comply with specified designated operating conditions and
environments.
NOTICE!
In a residential environment this product may cause radio
interference, in which case supplementary mitigation
measures may be required.
Introduction VLT®HVAC Drive Instruction Manual
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1

1.5 Block Diagram of the Adjustable
Frequency Drive
Figure 1.1 is a block diagram of the adjustable frequency
drive's internal components. See Table 1.2 for their functions.
Figure 1.1 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 1.1
1.6 Enclosure Types and Power Ratings
For enclosure types and power ratings of the adjustable
frequency drives, refer to 8.9 Power Ratings, Weight and
Dimensions.
1.7 Approvals and Certifications
Table 1.3 Approvals and Certifications
More approvals and certifications are available. Contact local
Danfoss partner. The T7 (525–690 V) adjustable frequency
drives are not certified for UL.
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.
1.8 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
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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. Installation, start-up, and
maintenance must be performed by qualified personnel
only. Failure to perform installation, start-up, and
maintenance by qualified personnel could result in death
or serious injury.
WARNING
UNINTENDED START!
When the adjustable frequency drive is connected to AC
line power, the motor may start at any time. The
adjustable frequency drive, motor, and any driven
equipment must be in operational readiness. Failure to be
in operational readiness when the adjustable frequency
drive is connected to AC line power could result in death,
serious injury, equipment or property damage.
WARNING
DISCHARGE TIME!
Adjustable frequency drives contain DC link capacitors that
can remain charged even when the adjustable frequency
drive is not powered. To avoid electrical hazards,
disconnect AC line power, any permanent magnet type
motors, and any remote DC link power supplies, including
battery backups, UPS and DC link connections to other
adjustable frequency drives. Wait for the capacitors to
discharge completely before performing any service or
repair work. The amount of waiting time is listed in
Table 2.1. Failure to wait the specified time after power has
been removed before doing service or repair could result
in death or serious injury.
Voltage [V] Minimum waiting time [minutes]
4 7 15
200–240 1.1–3.7 kW 5.5–45 kW
380–480 1.1–7.5 kW 11–90 kW
525–600 1.1–7.5 kW 11–90 kW
525–690 1.1–7.5 kW 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 are higher than 3.5 mA. It is the responsi-
bility of the user or certified electrical installer to ensure
correct grounding of the equipment. Failure to ground the
adjustable frequency drive properly could result in death
or serious injury.
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WARNING
EQUIPMENT HAZARD!
Rotating shafts and electrical equipment can be hazardous.
All electrical work must conform to national and local
electrical codes. Installation, start-up, and maintenance are
performed only by trained and qualified personnel. Failure
to follow these guidelines could result in death or serious
injury.
WARNING
WINDMILLING!
Unintended rotation of permanent magnet motors causes
a risk of personal injury and equipment damage. Ensure
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.
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3 Mechanical Installation
3.1 Unpacking
3.1.1 Items Supplied
•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.
•Make sure the items supplied and the information
on the nameplate correspond to the order confir-
mation.
130BD511.10
Type 12 / IP55 Tamb.45 C/113 F
V LT
MADE IN DENMARK
R
P/N: 131U3930 S/N: 010102G290
3.0kW(400V) / 4.0HP(460V)
IN: 3x380-480V 50/60Hz 6.5/5.7A
OUT: 3x0-Vin 0-590Hz 7.2/6.3A
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 1
U
3 9 3 0 0 1 0 1 0 2 G 2 9 0 *
`
HVAC Drive
www.danfoss.com
T/C: FC-102P3K0T4Z55H1UGCXXXSXXXXAXBXCXXXXDX
Listed 76X1 E134261 Ind. Contr. Eq.
o
`
1
2
3
4
5
67
8
9
10
Figure 3.1 Product Nameplate (Example)
1 Type code
2 Order number
3 Power rating
4 Input voltage, frequency and current (at low/high voltages)
5Output voltage, frequency and current (at low/high
voltages)
6 Enclosure type and IP rating
7 Maximum ambient temperature
8 Certifications
9 Discharge time (Warning)
10 Serial number
Table 3.1 Legend to Figure 3.1
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
8.4 Ambient Conditions for further details.
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3.1.3 Product Overview
1
23
4
5
6
7
8
9
10
11
12
13
14
8
15
16
17
18
130BB492.10
Figure 3.2 Exploded View Enclosure Type A, IP20
1Local control panel (LCP) 10 Motor output terminals 96 (U), 97 (V), 98 (W)
2 RS-485 serial bus 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 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
Table 3.2 Legend to Figure 3.2
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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
61 68 39 42 50 53 54
06 05 04 03 02 01
130BB493.10
Figure 3.3 Exploded View Enclosure Types B and C, IP55 and IP66
1Local 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 Brake terminal (-81, +82)
7 USB connector 17 Load sharing terminal (DC bus) (-88, +89)
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)
Table 3.3 Legend to Figure 3.3
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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
8.4 Ambient Conditions.
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 3.4 for clearance
requirements.
a
a
130BD528.10
Figure 3.4 Top and Bottom Cooling Clearance
Enclosure A2-A5 B1-B4 C1, C3 C2, C4
a (mm) 100 200 200 225
Table 3.4 Minimum Airflow Clearance Requirements
Lifting
•To determine a safe lifting method, check the
weight of the unit, see 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. Mount the unit vertically on a solid flat surface or
on the optional backplate.
3. Use the slotted mounting holes on the unit for wall
mounting, when provided.
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Mounting with backplate and railings
130BD504.10
Figure 3.5 Proper Mounting with Backplate
NOTICE!
Backplate is required when mounted on railings.
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4 Electrical Installation
4.1 Safety Instructions
See 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.
CAUTION
DC CURRENT HAZARD!
A DC current in the protective grounding conductor can be
caused by the adjustable frequency drives. When a residual
current-operated protective or monitoring device (RCD/
RCM) is used for protection, only an RCD or RCM of Type B
is allowed.
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 8.8 Fuse Specifications.
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 rated copper wire.
See 8.1 Electrical Data and 8.5 Cable Specifications for
recommended wire sizes and types.
4.2 EMC-compliant Installation
To obtain an EMC-compliant installation, follow the
instructions provided in 4.3 Grounding, 4.4 Wiring Schematic,
4.6 Motor Connection and 4.8 Control Wiring.
4.3 Grounding
WARNING
LEAKAGE CURRENT HAZARD!
Leakage currents are higher than 3.5 mA. It is the responsi-
bility of the user or certified electrical installer to ensure
correct grounding of the equipment. Failure to ground the
adjustable frequency drive properly could result in death
or serious injury.
For electrical safety
•Ground the adjustable frequency drive properly 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.
•Do not use pigtails.
•Follow the motor manufacturer wiring
requirements.
•Minimum cable cross-section: 10 mm2(or 2 rated
ground wires terminated separately).
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.
•Use high-strand wire to reduce electrical
interference.
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NOTICE!
POTENTIAL EQUALIZATION!
Electrical interference risks disturbing the entire installation, when the ground potential between the adjustable
frequency drive and the system is different. To avoid electrical interference, install equalizing cables between the
system components. Recommended cable cross-section: 16 mm2.
4.4 Wiring Schematic
130BD552.11
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 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
(R+) 82
(R-) 81
: 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 Safe Torque Off
Instruction Manual for Danfoss VLT
®
Adjustable Frequency Drives.
**Do not connect cable shield.
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130BD529.10
1
2
3
4
5
6
7
8
PE
U
V
W
9
L1
L2
L3
PE
10
Figure 4.2 EMC--compliant Electrical Connection
1PLC 6 Shielded cable
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. 16 mm2(0.025 in)
Table 4.1 Legend to Figure 4.2
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NOTICE!
EMC INTERFERENCE!
Use separated shielded cables for input power, motor
wiring and control wiring, or run cables in three separate
metallic conduits. Failure to isolate power, motor and
control wiring can result in unintended behavior or
reduced performance. Minimum 200 mm (7.9 in) clearance
between control cables, motor and line power.
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 4.2 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 4.2 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.
•Comply with local and national electrical codes for
cable sizes. For maximum wire sizes, see
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.
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•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 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 8.7 Connection Tightening
Torques.
130BD531.10
U
VW
96
97
98
Figure 4.5 Motor Connection
Figure 4.6, Figure 4.7, Figure 4.8 and Figure 4.9 represent line
power input, motor, and grounding for basic adjustable
frequency drives. Actual configurations vary with unit types
and optional equipment.
130BD577.10
+DC
BR- B
MAINS
L1 L2 L3
91 92 93
RELAY 1 RELAY 2
99
UVW
MOTOR
Figure 4.6 Motor, Line Power and Ground Wiring for Enclosure
Types A2 and A3
130BD513.10
U
V
W
96
97
98
Figure 4.7 Motor, Line Power and Ground Wiring for Enclosure
Types A4 and A5
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91
L1
92
L2
93
L3
96
U
97
V
98
W
88
DC-
89
DC+
81
R-
8
R+
130BA390.11
99
95
Figure 4.8 Motor, Line Power and Ground Wiring for Enclosure
Types B and C Using Shielded Cable
130BB477.10
91
L1
92
L2
93
L3
96
U
97
V
99
W
88
DC+
89
DC-
91
R-
9
R+
95 99
Figure 4.9 Motor, Line Power and Ground Wiring for Enclosure
Types B and C Using Conduit
4.7 AC Line Input Connection
•Size wiring based upon the input current of the
adjustable frequency drive. For maximum wire sizes,
see 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 4.10).
2. Depending on the configuration of the equipment,
input power will be connected to the line power
input terminals or the input disconnect.
3. Ground the cable in accordance with grounding
instructions provided in 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 OFF to avoid
damage to the intermediate circuit and to reduce
ground capacity currents in accordance with IEC
61800-3.
L 1 L 2 L 3
91 92 93
130BT336.10
Figure 4.10 Connecting to AC Line Power
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