Danfoss VLT AutomationDrive FC 300 User manual

MAKING MODERN LIVING POSSIBLE
Instruction Manual
VLT®AutomationDrive FC 300

Safety
Safety
WARNING
HIGH VOLTAGE!
Adjustable frequency drives contain high voltage when
connected to AC line power. Installation, start-up, and
maintenance should be performed by qualified personnel
only. Failure to perform installation, start-up, 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 0.25–3.7 kW 5.5–37 kW
380–480 0.25–7.5 kW 11–75 kW
525–600 0.75–7.5 kW 11–75 kW
High voltage may be present even when the warning LEDs 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
MG33AL22 - VLT®is a registered Danfoss trademark

Safety VLT®AutomationDrive Instruction
Manual
MG33AL22 - 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 2-4
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 Power 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 3-9
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 3-10
2.4.5.8 Terminal 37 3-11
2.4.5.9 Mechanical Brake Control 3-14
2.4.6 Serial Communication 3-14
3 Start-up and Functional Testing 4-1
3.1 Pre-start 4-1
3.1.1 Safety Inspection 4-1
3.2 Applying Power to the Adjustable Frequency Drive 4-3
Contents VLT®AutomationDrive Instruction
Manual
MG33AL22 - VLT®is a registered Danfoss trademark

3.3 Basic Operational Programming 4-3
3.4 Automatic Motor Adaptation 4-4
3.5 Check Motor Rotation 4-5
3.6 Check Encoder Rotation 4-5
3.7 Local Control Test 4-6
3.8 System Start-up 4-6
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
5.6 Remote Programming with MCT 10 Set-up Software 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
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
Contents VLT®AutomationDrive Instruction
Manual
MG33AL22 - VLT®is a registered Danfoss trademark

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 11-12
10.3 Fuse Specifications 11-16
10.3.2 Recommendations 11-16
10.3.3 CE Compliance 11-17
10.4 Connection Tightening Torques 11-25
12 Index 12-1
Contents VLT®AutomationDrive Instruction
Manual
MG33AL22 - VLT®is a registered Danfoss trademark

Contents VLT®AutomationDrive Instruction
Manual
MG33AL22 - 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
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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
1.1 Purpose of the Manual
This manual is intended to provide detailed information for
the installation and start-up 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 start-up, basic operational
programming, and functional testing. The remaining
chapters provide supplementary details. These details
include user interface, detailed programming, application
examples, start-up troubleshooting, and specifications.
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11

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/Products/Literature/
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 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
Area Title Functions
1 Line power 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
•Provide 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
Introduction VLT®AutomationDrive Instruction
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11

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 1.3 Adjustable Frequency Drive Internal Components
1.5 Frame Sizes and Power Ratings
Frame size [kW]
[Volts] A1 A2 A3 A4 A5 B1 B2 B3 B4 C1 C2 C3 C4
200–240 0.25–1.5 0.25–2.2 3.0–3.7 0.25–2.2 0.25–3.7 5.5–7.5 11 5.5–7.5 11–15 15–22 30–37 18.5–22 30–37
380–480 0.37–1.5 0.37–4.0 5.5–7.5 0.37–4.0 0.37–7.5 11–15 18.5–22 11–15 18.5–30 30–45 55–75 37–45 55–75
525–600 N/A N/A 0.75–7.5 N/A 0.75–7.5 11–15 18.5–22 11–15 18.5–30 30–45 55–90 37–45 55–90
Table 1.4 Frames Sizes and Power Ratings
Introduction VLT®AutomationDrive Instruction
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11

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 adjustable frequency drive interior free
from dust and dirt. Ensure that the components
stay as clean as possible. In construction areas,
provide a protective covering. Optional IP54
(NEMA 12) or IP66 (NEMA 4) enclosures may be
necessary.
•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
•300 m (1000 ft) for unshielded motor
leads
•150 m (500 ft) for shielded cable.
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 40°C
(104°F) and 50°C (122°F) and elevation 1,000 m
(3,300 ft) 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]) 3.937 [100] 7.874 [200] 7.874 [200] 8.858 [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, when
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 to a solid flat surface or to 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.
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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.
* 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.
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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 in)
Table 2.2
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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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22

•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 on 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 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.
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2

•Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W).
•Ground the cable in accordance with grounding
instructions provided.
•Torque terminals in accordance with the
information provided in 10.4.1 Connection
Tightening Torques
•Follow the motor manufacturer wiring
requirements
Figure 2.8 represents line power input, motor, and ground
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 2.8 Example of Motor, Line Power and Ground Wiring
2.4.4 AC Line Power Connection
•Size wiring based upon the input current of the
adjustable frequency drive. For maximum wire
sizes, see 10.1 Power-dependent Specifications.
•Comply with local and national electrical codes
for cable sizes.
•Connect 3-phase AC input power wiring to
terminals L1, L2, and L3 (see Figure 2.8).
•Depending on the configuration of the
equipment, input power will be connected to the
line power input terminals or the input
disconnect.
•Ground the cable in accordance with grounding
instructions provided in 2.4.2 Grounding
Requirements
•All adjustable frequency drives may be used with
an isolated input source as well as with ground
reference power lines. 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), set 14-50 RFI 1 to
[0] Off. When off, the internal RFI filter capacitors
between the chassis and the intermediate circuit
are isolated to avoid damage to the intermediate
circuit and to reduce ground capacity currents in
accordance with IEC 61800-3.
2.4.5 Control Wiring
•Isolate control wiring from high power
components in the adjustable frequency drive.
•If the adjustable frequency drive is connected to
a thermistor, for PELV isolation, optional
thermistor control wiring must be reinforced/
double insulated. A 24 V DC supply voltage is
recommended.
2.4.5.1 Access
•Remove access cover plate with a screw driver.
See Figure 2.9.
•Or remove front cover by loosening attaching
screws. See Figure 2.10.
130BT248.10
Figure 2.9 Control Wiring Access for A2, A3, B3, B4, C3 and C4
Enclosures
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Manual
MG33AL22 - VLT®is a registered Danfoss trademark 2-7
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130BT334.10
Figure 2.10 Control Wiring Access for A4, A5, B1, B2, C1 and C2
Enclosures
See Table 2.3 before tightening the covers.
Frame IP20 IP21 IP55 IP66
A4/A5 - - 2 2
B1 - * 2.2 2.2
B2 - * 2.2 2.2
C1 - * 2.2 2.2
C2 - * 2.2 2.2
* No screws to tighten
- Does not exist
Table 2.3 Tightening Torques for Covers (Nm)
2.4.5.2 Control Terminal Types
Figure 2.11 and shows the removable adjustable frequency
drive connectors. Terminal functions and default settings
are summarized in Table 2.5.
2
3
4
1
130BB921.11
Figure 2.11 Control Terminal Locations
12 13 18 19 27 29 32 33 20 37
39 42 50 53 54 55
61 68 69
130BB931.10
1
2 3
Figure 2.12 Terminal Numbers
•Connector 1 provides four programmable digital
inputs terminals, two additional digital terminals
programmable as either input or output, a 24 V
DC terminal supply voltage, and a common for
optional customer supplied 24 V DC voltage. FC
302 and FC 301 (optional in A1 enclosure) also
provide a digital input for STO (Safe Torque Off)
function.
•Connector 2 terminals (+)68 and (-)69 are for an
RS-485 serial communications connection
•Connector 3 provides two analog inputs, one
analog output, 10 V DC supply voltage, and
commons for the inputs and output
•Connector 4 is a USB port available for use with
the MCT 10 Set-up Software
•Also provided are two Form C relay outputs that
are in various locations depending upon the
adjustable frequency drive configuration and size
•Some options available for ordering with the unit
may provide additional terminals. See the manual
provided with the equipment option.
See 10.2 General Technical Data for terminal ratings details.
Terminal description
Terminal Parameter
Default
setting Description
Digital inputs/outputs
12, 13 - +24 V DC 24 V DC supply
voltage. Maximum
output current is 200
mA total (130 mA for
FC 301) for all 24 V
loads. Usable for
digital inputs and
external transducers.
18 5-10 [8] Start
Digital inputs.
19 5-11 [10] Reversing
32 5-14 [0] No
operation
33 5-15 [0] No
operation
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2

Terminal description
Terminal Parameter
Default
setting Description
27 5-12 [2] Coast
inverse
Selectable for either
digital input or
output. Default setting
is input.
29 5-13 [14] JOG
20 - Common for digital
inputs and 0 V
potential for 24 V
supply.
37 - Safe Torque
Off (STO)
Safe input. Used for
STO.
Analog inputs/outputs
39 - Common for analog
output
42 6-50 [0] No
operation
Programmable analog
output. The analog
signal is 0–20 mA or
4-20 mA at a
maximum of 500 Ω
50 - +10 V DC 10 V DC analog
supply voltage. 15 mA
maximum commonly
used for potenti-
ometer or thermistor.
53 6-1* Reference Analog input.
Selectable for voltage
or current. Switches
A53 and A54 select
mA or V.
54 6-2* Feedback
55 - Common for analog
input
Table 2.4
Terminal description
Terminal Parameter
Default
setting Description
Serial communication
61 - Integrated RC-Filter for
cable screen. ONLY for
connecting the shield
when experiencing
EMC problems.
68 (+) 8-3* RS-485 Interface. A
control card switch is
provided for
termination resistance.
69 (-) 8-3*
Relays
Terminal description
Terminal Parameter
Default
setting Description
01, 02, 03 5-40 [0]
[0] No
operation
Form C relay output.
Usable for AC or DC
voltage and resistive
or inductive loads.
04, 05, 06 5-40 [1] [0] No
operation
Table 2.5 Terminal Description
2.4.5.3 Wiring to Control Terminals
Control terminal connectors can be unplugged from the
adjustable frequency drive for ease of installation, as
shown in Figure 2.11.
1. Open the contact by inserting a small screwdriver
into the slot above or below the contact, as
shown in Figure 2.13.
2. Insert the bared control wire into the contact.
3. Remove the screwdriver to fasten the control wire
into the contact.
4. Ensure the contact is firmly established and not
loose. Loose control wiring can be the source of
equipment faults or less than optimal operation.
See 10.1 Power-dependent Specifications for control terminal
wiring sizes.
See 6 Application Examples for typical control wiring
connections.
2
1
10 mm
130BA310.10
12 13
18
19
27
29
32
33
Figure 2.13 Connecting Control Wiring
2.4.5.4 Using Shielded Control Cables
Correct shielding
The preferred method in most cases is to secure control
and serial communication cables with shielding clamps
provided at both ends to ensure best possible high
frequency cable contact.
If the ground potential between the adjustable frequency
drive and the PLC is different, electric noise may occur that
will disturb the entire system. Solve this problem by fitting
Installation VLT®AutomationDrive Instruction
Manual
MG33AL22 - VLT®is a registered Danfoss trademark 2-9
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