VLT FC 300 User manual

MAKING MODERN LIVING POSSIBLE
Instruction Manual
VLT®AutomationDrive FC 300, 0.25–75 kW


Safety
WARNING
HIGH VOLTAGE!
Adjustable frequency drives contain high voltage when
connected to AC line power. Installation, startup, and
maintenance should be performed by qualified personnel
only. Failure to perform installation, startup, and
maintenance by qualified personnel could result in death
or serious injury.
High Voltage
Adjustable frequency drives are connected to hazardous
AC line voltage. Extreme care should be taken to protect
against shock. Only trained personnel familiar with
electronic equipment should install, start, or maintain this
equipment.
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.
Unintended Start
When the adjustable frequency drive is connected to AC
line power, the motor may be started with an external
switch, a serial bus command, an input reference signal, or
a cleared fault condition. Use appropriate caution to guard
against an unintended start.
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 fully
discharge before performing any service or repair work.
The wait time required is listed in the Discharge Time table.
Failure to wait for the specified period of time after power
has been removed to do service or repair could result in
death or serious injury.
Voltage [V] Minimum waiting time [minutes]
4 15
200–240 0-34-0.5 hp 7.5-50 hp
380–480 0.34-10 hp 15-100 hp
525–600 1.0-10 hp 15-100 hp
525–690 15-100 hp
High voltage may be present even when the warning LED
indicator lights are off.
Discharge Time
Symbols
The following symbols are used in this manual.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
CAUTION
Indicates a situation that may result in equipment or
property damage-only accidents.
NOTE!
Indicates highlighted information that should be observed
in order to avoid mistakes or operate equipment at less
than optimal performance.
Approvals
Table 1.2
Safety VLT®AutomationDrive Instruction
Manual
MG33AM22 - VLT®is a registered Danfoss trademark

NOTE!
Imposed limitations on the output frequency
(due to export control regulations):
From software version 6.72, the output frequency of the
adjustable frequency drive is limited to 590 Hz. Software
versions 6x.xx also limit the maximum output frequency to
590 Hz, but these versions cannot be flashed, i.e., neither
downgraded nor upgraded.
Safety VLT®AutomationDrive Instruction
Manual
MG33AM22 - VLT®is a registered Danfoss trademark

Contents
1 Introduction 2-1
1.1 Purpose of the Manual 2-2
1.2 Additional Resources 2-3
1.3 Product Overview 2-3
1.4 Internal Controller Functions 2-3
1.5 Frame Sizes and Power Ratings 2-5
2 Installation 3-1
2.1 Installation Site Checklist 3-1
2.2 Adjustable Frequency Drive and Motor Pre-installation Checklist 3-1
2.3 Mechanical Installation 3-1
2.3.1 Cooling 3-1
2.3.2 Lifting 3-2
2.3.3 Mounting 3-2
2.3.4 Tightening Torques 3-2
2.4 Electrical Installation 3-3
2.4.1 Requirements 3-5
2.4.2 Grounding Requirements 3-5
2.4.2.1 Leakage Current (>3.5 mA) 3-6
2.4.2.2 Grounding Using Shielded Cable 3-6
2.4.3 Motor Connection 3-6
2.4.4 AC Line Input Connection 3-7
2.4.5 Control Wiring 3-7
2.4.5.1 Access 3-7
2.4.5.2 Control Terminal Types 3-8
2.4.5.3 Wiring to Control Terminals 3-9
2.4.5.4 Using Shielded Control Cables 3-10
2.4.5.5 Control Terminal Functions 3-10
2.4.5.6 Jumper Terminals 12 and 27 3-10
2.4.5.7 Terminal 53 and 54 Switches 3-11
2.4.5.8 Mechanical Brake Control 3-11
2.4.6 Serial Communication 3-12
2.5 Safe Stop 3-12
2.5.1 Terminal 37 Safe Stop Function 3-13
2.5.2 Safe Stop Commissioning Test 3-16
3 Start-up and Functional Testing 4-1
3.1 Pre-start 4-1
Contents VLT®AutomationDrive Instruction
Manual
MG33AM22 - VLT®is a registered Danfoss trademark

3.1.1 Safety Inspection 4-1
3.2 Applying Power 4-3
3.3 Basic Operational Programming 4-3
3.4 Asynchronous Motor Set-up 4-4
3.5 PM Motor Set-up in VVCplus 4-5
3.6 Automatic Motor Adaptation 4-5
3.7 Check Motor Rotation 4-6
3.8 Check Encoder Rotation 4-6
3.9 Local Control Test 4-7
3.10 System Start-up 4-7
4 User Interface 5-1
4.1 Local Control Panel 5-1
4.1.1 LCP Layout 5-1
4.1.2 Setting LCP Display Values 5-2
4.1.3 Display Menu Keys 5-2
4.1.4 Navigation Keys 5-3
4.1.5 Operation Keys 5-3
4.2 Backup and Copying Parameter Settings 5-3
4.2.1 Uploading Data to the LCP 5-4
4.2.2 Downloading Data from the LCP 5-4
4.3 Restoring Default Settings 5-4
4.3.1 Recommended Initialization 5-4
4.3.2 Manual Initialization 5-4
5 About Adjustable Frequency Drive Programming 6-1
5.1 Introduction 6-1
5.2 Programming Example 6-1
5.3 Control Terminal Programming Examples 6-2
5.4 International/North American Default Parameter Settings 6-3
5.5 Parameter Menu Structure 6-4
5.5.1 Main menu structure 6-5
5.6 Remote Programming with MCT 10 Set-up Software 6-9
6 Application Examples 7-1
6.1 Introduction 7-1
6.2 Application Examples 7-1
7 Status Messages 8-1
7.1 Status Display 8-1
Contents VLT®AutomationDrive Instruction
Manual
MG33AM22 - VLT®is a registered Danfoss trademark

7.2 Status Message Definitions Table 8-1
8 Warnings and Alarms 9-1
8.1 System Monitoring 9-1
8.2 Warning and Alarm Types 9-1
8.3 Warning and Alarm Displays 9-1
8.4 Warning and Alarm Definitions 9-2
9 Basic Troubleshooting 10-1
9.1 Start Up and Operation 10-1
10 Specifications 11-1
10.1 Power-dependent Specifications 11-1
10.2 General Technical Data 11-14
10.3 Fuse Specifications 11-19
10.3.2 Recommendations 11-19
10.3.3 CE Compliance 11-19
10.4 Connection Tightening Torques 11-28
12 Index 12-1
Contents VLT®AutomationDrive Instruction
Manual
MG33AM22 - VLT®is a registered Danfoss trademark

Contents VLT®AutomationDrive Instruction
Manual
MG33AM22 - VLT®is a registered Danfoss trademark

1 Introduction
1
23
4
5
6
7
8
9
10
11
12
13
14
8
15
16
17
18
130BB492.10
Figure 1.1 Exploded View A1-A3, IP20
1LCP 10 Motor output terminals 96 (U), 97 (V), 98 (W)
2 RS-485 serial bus connector (+68, -69) 11 Relay 1 (01, 02, 03)
3 Analog I/O connector 12 Relay 2 (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 strain relief/PE ground 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 Control cable cover plate
Table 1.1 Legend to Figure 1.1
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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
Figure 1.2 Exploded View B and C Sizes, IP55/66
1LCP 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 strain relief/PE ground
6 Cable strain relief/PE ground 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 1.2 Legend to Figure 1.2
1.1 Purpose of the Manual
This manual is intended to provide detailed information for
the installation and startup of the adjustable frequency
drive. provides requirements for mechanical and electrical
installation, including input, motor, control and serial
communications wiring and control terminal functions.
provides detailed procedures for startup, basic operational
programming, and functional testing. The remaining
chapters provide supplementary details. These details
include user interface, detailed programming, application
examples, startup troubleshooting, and specifications.
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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 is intended to provide
detailed capabilities and functionality to design
motor control systems.
•Supplementary publications and manuals are
available from Danfoss.
See http://www.danfoss.com/BusinessAreas/Drives-
Solutions/Documentations/Technical
+Documentation.htm for listings.
•Optional equipment is available that may change
some of the procedures described. Reference the
instructions supplied with those options for
specific requirements. Contact the local Danfoss
supplier or visit the Danfoss website: http://
www.danfoss.com/BusinessAreas/DrivesSolutions/
Documentations/Technical+Documentation.htm, for
downloads or additional information.
1.3 Product Overview
An adjustable frequency drive is an electronic motor
controller that converts AC line power input into a variable
AC waveform output. The frequency and voltage of the
output are regulated to control the motor speed or torque.
The adjustable frequency drive can vary the speed of the
motor in response to system feedback, such as position
sensors on a conveyor belt. The adjustable frequency drive
can also regulate the motor by responding to remote
commands from external controllers.
In addition, the adjustable frequency drive monitors the
system and motor status, issues warnings or alarms for
fault conditions, starts and stops the motor, optimizes
energy efficiency, and offers many more control,
monitoring, and efficiency functions. Operation and
monitoring functions are available as status indications to
an outside control system or serial communication
network.
1.4 Internal Controller Functions
Figure 1.3 is a block diagram of the adjustable frequency
drive's internal components. See Table 1.3 for their
functions.
Figure 1.3 Adjustable Frequency Drive Block Diagram
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Manual
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11

Area Title Functions
1 Mains input •Three-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 three-phase output
power to the motor
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 1.3 Legend to Figure 1.3
Introduction VLT®AutomationDrive Instruction
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1.5 Frame Sizes and Power Ratings
Frame size [hp]
[Volts] A1 A2 A3 A4 A5 B1 B2 C1 C2 C3 C4
200–240 0.34–2.0 0.34–3.0 4.00–5.00 0.34–3.0 0.34–5.0 7.5–10 15 20–30 40–50 25–30 40–50
380–480 0.5–2.0 0.5–5.0 7.5–10 0.5–5.0 0.5–10 15–20 25–30 40–60 75–100 50–60 75–100
525–600 N/A N/A 1.0–10 N/A 1.0–10 15–20 25–30 40–60 75–125 50–60 75–125
525–690 N/A N/A 1.5–10 N/A N/A N/A 15–30 N/A 40–100 50–60 N/A
Table 1.4 Frame Sizes and Power Ratings
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Introduction VLT®AutomationDrive Instruction
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2 Installation
2.1 Installation Site Checklist
•The adjustable frequency drive relies on the
ambient air for cooling. Observe the limitations
on ambient air temperature for optimal operation
•Ensure that the installation location has sufficient
support strength to mount the adjustable
frequency drive
•Keep the manual, drawings, and diagrams
accessible for detailed installation and operation
instructions. It is important that the manual is
available for equipment operators.
•Locate equipment as near to the motor as
possible. Keep motor cables as short as possible.
Check the motor characteristics for actual
tolerances. Do not exceed
•1,000 ft [300 m] for unshielded motor
leads
•500 ft [150 m] for shielded cable.
•Ensure that the ingress protection rating of the
adjustable frequency drive is suitable for the
installation environment. IP55 (NEMA 12) or IP66
(NEMA 4) enclosures may be necessary.
CAUTION
Ingress protection
IP54, IP55 and IP66 ratings can only be guaranteed if the
unit is properly closed.
•Ensure that all cable connectors and unused
holes for connectors are properly sealed.
•Ensure that the unit cover is properly closed
CAUTION
Device damage through contamination
Do not leave the adjustable frequency drive uncovered.
For “spark-free” installations according to European
Agreement concerning International Carriage of Dangerous
Goods by Inland Waterways (ADN_2011 ###), refer to VLT®
AutomationDrive FC 300 Design Guide.
2.2 Adjustable Frequency Drive and Motor
Pre-installation Checklist
•Compare the model number of unit on the
nameplate to what was ordered to verify the
proper equipment
•Ensure each of the following are rated for the
same voltage:
Line power
Adjustable frequency drive
Motor
•Ensure that the adjustable frequency drive output
current rating is equal to or greater than motor
full load current for peak motor performance.
Motor size and adjustable frequency
drive power must match for proper
overload protection
If adjustable frequency drive rating is
less than motor, full motor output
cannot be achieved
2.3 Mechanical Installation
2.3.1 Cooling
•To provide cooling airflow, mount the unit to a
solid flat surface or to the optional backplate (see
2.3.3 Mounting)
•Top and bottom clearance for air cooling must be
provided. Generally, 100–225 mm (4–10 in) is
required. See Figure 2.1 for clearance
requirements
•Improper mounting can result in overheating and
reduced performance
•Derating for temperatures starting between 104
°F [40 °C] and 122 °F [50 °C] and elevation 3,300
ft [1,000 m] above sea level must be considered.
See the equipment Design Guide for detailed
information.
Installation VLT®AutomationDrive Instruction
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22

a
b
130BA419.10
Figure 2.1 Top and Bottom Cooling Clearance
Enclosure A1-A5 B1-B4 C1, C3 C2, C4
a/b (inch
[mm]) 3.94 [100] 7.87 [200] 7.87 [200] 8.86 [225]
Table 2.1 Minimum Airflow Clearance Requirements
2.3.2 Lifting
•Check the weight of the unit to determine a safe
lifting method
•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, where
provided
2.3.3 Mounting
•Mount the unit vertically
•The adjustable frequency drive allows side by
side installation
•Ensure that the strength of the mounting location
will support the unit weight
•Mount the unit onto a solid flat surface or onto
the optional backplate to provide cooling airflow
(see Figure 2.2 and Figure 2.3)
•Improper mounting can result in overheating and
reduced performance
•Use the slotted mounting holes on the unit for
wall mounting, when provided.
130BA219.10
A
Figure 2.2 Proper Mounting with Backplate
Item A is a backplate properly installed for required airflow
to cool the unit.
130BA228.10
A
Figure 2.3 Proper Mounting with Railings
NOTE!
Backplate is needed when mounted on railings.
2.3.4 Tightening Torques
See 10.4 Connection Tightening Torques for proper
tightening specifications.
Installation VLT®AutomationDrive Instruction
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2

2.4 Electrical Installation
This section contains detailed instructions for wiring the
adjustable frequency drive. The following tasks are
described.
•Wiring the motor to the adjustable frequency drive output terminals
•Wiring the AC line power to the adjustable frequency drive input terminals
•Connecting control and serial communication wiring
•After power has been applied, checking input and motor power; programming control terminals for their intended
functions
3 Phase
power
input
DC bus Switch Mode
Power Supply
Motor
Analog Output
Interface
relay1
* relay2
ON=Terminated
OFF=Open
Brake
resistor
130BC931.10
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 (+24V OUT)
13 (+24V OUT)
37 (D IN)
18 (D IN)
20 (COM D IN)
10Vdc
15mA 130/200mA
+ - + -
(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
0V
5V
S801
0/4-20 mA
RS-485
RS-485
03
+10Vdc
0/-10Vdc -
+10Vdc
+10Vdc
0/4-20 mA
0/-10Vdc -
240Vac, 2A
24Vdc
02
01
05
04
06 240Vac, 2A
24V (NPN)
0V (PNP)
0V (PNP)
24V (NPN)
19 (D IN)
24V (NPN)
0V (PNP)
27
24V
0V
(D IN/OUT)
0V (PNP)
24V (NPN)
(D IN/OUT)
0V
24V
29
24V (NPN)
0V (PNP)
0V (PNP)
24V (NPN)
33 (D IN)
32 (D IN)
1 2
ON
S201
ON
21
S202
ON=0/4-20mA
OFF=0/-10Vdc -
+10Vdc
95
400Vac, 2A
P 5-00
21
ON
S801
(R+) 82
(R-) 81
*
*
: Chassis
: Earth
**
Figure 2.4 Basic Wiring Schematic Drawing
A=Analog, D=Digital Terminal 37 is used for Safe Stop. For Safe Stop installation
instructions, refer to the Design Guide.
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* Terminal 37 is not included in FC 301 (except frame size
A1). Relay 2 and terminal 29 have no function in FC 301.
** Do not connect cable screen.
1
2
3
4
5
6
7
8
PE
U
V
W
9
L1
L2
L3
PE
130BB607.10
10
Figure 2.5 Typical Electrical Connection
1PLC 6 Min. 200 mm (7.9 in) between control cables, motor and line
power
2 Adjustable frequency drive 7 Motor, 3-phase and PE
3 Output contactor (Generally not recommended) 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 in2)
Table 2.2 Legend to Figure 2.5
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2

2.4.1 Requirements
WARNING
EQUIPMENT HAZARD!
Rotating shafts and electrical equipment can be hazardous.
All electrical work must conform to national and local
electrical codes. It is strongly recommended that instal-
lation, start-up, and maintenance be performed only by
trained and qualified personnel. Failure to follow these
guidelines could result in death or serious injury.
CAUTION
WIRING ISOLATION!
Run input power, motor wiring and control wiring in three
separate metallic conduits or use separated shielded cable
for high frequency noise isolation. Failure to isolate power,
motor and control wiring could result in less than
optimum adjustable frequency drive and associated
equipment performance.
For your safety, comply with the following requirements.
•Electronic controls equipment is connected to
hazardous AC line voltage. Extreme care should
be taken to protect against electrical hazards
when applying power to the unit.
•Run motor cables from multiple adjustable
frequency drives separately. Induced voltage from
output motor cables run together can charge
equipment capacitors even with the equipment
turned off and locked out.
Overload and Equipment Protection
•An electronically activated function within the
adjustable frequency drive provides overload
protection for the motor. The overload calculates
the level of increase to activate timing for the trip
(controller output stop) function. The higher the
current draw, the quicker the trip response. The
overload provides Class 20 motor protection. See
8 Warnings and Alarms for details on the trip
function.
•Because the motor wiring carries high frequency
current, it is important that wiring for line power,
motor power, and control is run separately. Use
metallic conduit or separated shielded wire.
Failure to isolate power, motor, and control
wiring could result in less than optimum
equipment performance.
•All adjustable frequency drives must be provided
with short-circuit and overcurrent protection.
Input fusing is required to provide this
protection, see Figure 2.6. If not factory supplied,
fuses must be provided by the installer as part of
installation. See maximum fuse ratings in
10.3 Fuse Specifications.
L1
L1
L2
L2
L3
L3
GND
91 92 93
Fuses
130BB460.10
Figure 2.6 Adjustable Frequency Drive Fuses
Wire Type and Ratings
•All wiring must comply with local and national
regulations regarding cross-section and ambient
temperature requirements.
•Danfoss recommends that all power connections
be made with a minimum 167 °F [75 °C] rated
copper wire.
•See 10.1 Power-dependent Specifications for
recommended wire sizes.
2.4.2 Grounding Requirements
WARNING
GROUNDING HAZARD!
For operator safety, it is important to ground the
adjustable frequency drive properly in accordance with
national and local electrical codes, as well as instructions
contained within these instructions. Ground currents are
higher than 3.5 mA. Failure to ground the adjustable
frequency drive properly could result in death or serious
injury.
NOTE!
It is the responsibility of the user or certified electrical
installer to ensure correct grounding of the equipment in
accordance with national and local electrical codes and
standards.
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•Follow all local and national electrical codes to
ground electrical equipment properly.
•Proper protective grounding for equipment with
ground currents higher than 3.5 mA must be
established, see Leakage Current (>3,5 mA)
•A dedicated ground wire is required for input
power, motor power and control wiring
•Use the clamps provided with the equipment for
proper ground connections
•Do not ground one adjustable frequency drive to
another in a “daisy chain” fashion
•Keep the ground wire connections as short as
possible
•Use of high strand wire to reduce electrical noise
is recommended
•Follow the motor manufacturer wiring
requirements
2.4.2.1 Leakage Current (>3.5 mA)
Follow national and local codes regarding protective
grounding of equipment with a leakage current > 3.5 mA.
Adjustable frequency drive technology implies high
frequency switching at high power. This will generate a
leakage current in the ground connection. A fault current
in the adjustable frequency drive at the output power
terminals might contain a DC component which can
charge the filter capacitors and cause a transient ground
current. The ground leakage current depends on various
system configurations including RFI filtering, shielded
motor cables, and adjustable frequency drive power.
EN/IEC61800-5-1 (Power Drive System Product Standard)
requires special care if the leakage current exceeds 3.5 mA.
Grounding must be reinforced in one of the following
ways:
•Ground wire of at least 0.0155 in2[10 mm2]
•Two separate ground wires both complying with
the dimensioning rules
See EN 60364-5-54 § 543.7 for further information.
Using RCDs
Where residual current devices (RCDs), also known as
ground leakage circuit breakers (GLCBs), are used, comply
with the following:
Use RCDs of type B only which are capable of
detecting AC and DC currents
Use RCDs with an inrush delay to prevent faults
due to transient ground currents
Dimension RCDs according to the system configu-
ration and environmental considerations
2.4.2.2 Grounding Using Shielded Cable
Grounding clamps are provided for motor wiring (see
Figure 2.7).
130BA266.10
+DC
BR- B
MAINS
L1 L2 L3
91 92 93
RELAY 1 RELAY 2
99
- LC -
UVW
MOTOR
Figure 2.7 Grounding with Shielded Cable
2.4.3 Motor Connection
WARNING
INDUCED VOLTAGE!
Run output motor cables from multiple adjustable
frequency drives separately. Induced voltage from output
motor cables run together can charge equipment
capacitors even with the equipment turned off and locked
out. Failure to run output motor cables separately could
result in death or serious injury.
•For maximum wire sizes, see 10.1 Power-
dependent Specifications
•Comply with local and national electrical codes
for cable sizes.
•Motor wiring knockouts or access panels are
provided at the base of IP21 and higher
(NEMA1/12) units
•Do not install power factor correction capacitors
between the adjustable frequency drive and the
motor
•Do not wire a starting or pole-changing device
between the adjustable frequency drive and the
motor.
•Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W).
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