Danfoss VLT AutomationDrive FC 301 User manual

ENGINEERING TOMORROW
Operating Guide
VLT®AutomationDrive FC 301/302
0.25–75 kW
vlt-drives.danfoss.com

Contents
1 Introduction 3
1.1 Purpose of the Manual 3
1.2 Additional Resources 3
1.3 Manual and Software Version 3
1.4 Product Overview 3
1.5 Type Approvals and Certications 5
2 Safety 6
2.1 Safety Symbols 6
2.2 Qualied Personnel 6
2.3 Safety Precautions 6
3 Mechanical Installation 8
3.1 Unpacking 8
3.1.1 Items Supplied 8
3.2 Installation Environments 8
3.3 Mounting 8
4 Electrical Installation 10
4.1 Safety Instructions 10
4.2 EMC-compliant Installation 10
4.3 Grounding 10
4.4 Wiring Schematic 12
4.5 Motor Connection 14
4.6 AC Mains Connection 15
4.7 Control Wiring 15
4.7.1 Safe Torque O (STO) 15
4.7.2 Mechanical Brake Control 15
4.8 Installation Check List 16
5 Commissioning 17
5.1 Safety Instructions 17
5.2 Local Control Panel Operation 18
5.3 System Set-up 19
6 Basic I/O Conguration 20
7 Maintenance, Diagnostics, and Troubleshooting 22
7.1 Maintenance and Service 22
7.2 Warning and Alarm Types 22
7.3 List of Warnings and Alarms 23
Contents Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 1

8 Specications 32
8.1 Electrical Data 32
8.1.1 Mains Supply 200–240 V 32
8.1.2 Mains Supply 380–500 V 34
8.1.3 Mains Supply 525–600 V (FC 302 only) 37
8.1.4 Mains Supply 525–690 V (FC 302 only) 40
8.2 Mains Supply 43
8.3 Motor Output and Motor Data 43
8.4 Ambient Conditions 44
8.5 Cable Specications 44
8.6 Control Input/Output and Control Data 44
8.7 Fuses and Circuit Breakers 48
8.8 Connection Tightening Torques 55
8.9 Power Ratings, Weight, and Dimensions 56
9 Appendix 62
9.1 Symbols, Abbreviations, and Conventions 62
9.2 Parameter Menu Structure 62
Index 72
Contents VLT®AutomationDrive FC 301/302
2 Danfoss A/S © 05/2018 All rights reserved. MG33AT02

1 Introduction
1.1 Purpose of the Manual
This operating guide provides information for safe instal-
lation and commissioning of the frequency converter.
The operating guide is intended for use by qualied
personnel.
Read and follow the instructions to use the frequency
converter safely and professionally, and pay particular
attention to the safety instructions and general warnings.
Always keep this operating guide available with the
frequency converter.
VLT®is a registered trademark.
1.2 Additional Resources
Other resources are available to understand advanced
frequency converter functions and programming.
•The VLT
®
AutomationDrive FC 301/FC 302
Programming Guide provides greater detail on
working with parameters and shows many
application examples.
•The VLT
®
AutomationDrive FC 301/FC 302 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/en/search/?lter=type
%3Adocumentation%2Csegment%3Adds for listings.
1.3 Manual and Software Version
This manual is regularly reviewed and updated. All
suggestions for improvement are welcome. Table 1.1 shows
the manual version and the corresponding software
version.
Edition Remarks Software version
MG33ATxx Error correction. Changing
minimum cable cross-section to
10 mm2(7 AWG)
8.1x, 48.20 (IMC)
Table 1.1 Manual and Software Version
1.4 Product Overview
1.4.1 Intended Use
The frequency converter is an electronic motor controller
intended for:
•Regulation of motor speed in response to system
feedback or to remote commands from external
controllers. A power drive system consists of the
frequency converter, the motor, and equipment
driven by the motor.
•System and motor status surveillance.
The frequency converter can also be used for motor
overload protection.
Depending on the conguration, the frequency converter
can be used in standalone applications or form part of a
larger appliance or installation.
The frequency converter is allowed for use in residential,
industrial, and commercial environments in accordance
with local laws 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 frequency converter in applications which
are non-compliant with specied operating conditions and
environments. Ensure compliance with the conditions
specied in chapter 8 Specications.
NOTICE
The output frequency of the frequency converter is
limited to 590 Hz.
For demands exceeding 590 Hz, contact Danfoss.
Introduction Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 3
11

1.4.2 Exploded Views
1
2
3
4
5
6
7
8
9
10
11
12 13
16
17
18
19
14
6
FANMOUNTING
QDF-30
DC- DC+
Removejumper to activate Safe Stop
Max.24 Volt !
12 13 18 19 27 29 32 33 20 37
06 05 04 03 02 01
130BF713.10
61 68 69
39 42 50 53 54 55
1
35
20
9
6
13
15
14
6
18
11
10
16, 17
19
14
7
8
4
2
1 Local control panel (LCP) 11 Relay 2 (04, 05, 06)
2 Cover 12 Lifting ring
3 RS485 eldbus connector 13 Mounting slot
4 Digital input/output connector 14 Ground connection (PE)
5 Digital input/output connector 15 Cable shield connector
6 Shielded cable grounding and relief 16 Brake terminal (-81, +82)
7 USB connector 17 Load sharing terminal (-88, +89)
8 RS485 termination switch 18 Motor terminals 96 (U), 97 (V), 98 (W)
9 DIP switch for A53 and A54 19 Mains input terminals 91 (L1), 92 (L2), 93 (L3)
10 Relay 1 (01, 02, 03) 20 LCP connector
Illustration 1.1 Exploded View Enclosure Size A, IP20 (left), and Enclosure Size C, IP55/IP66 (right)
Introduction VLT®AutomationDrive FC 301/302
4 Danfoss A/S © 05/2018 All rights reserved. MG33AT02
11

1.5 Type Approvals and Certications
The following list is a selection of possible type approvals
and certications for Danfoss frequency converters:
089
NOTICE
The specic approvals and certication for the frequency
converter are on the nameplate of the frequency
converter. For more information, contact the local
Danfoss oce or partner.
For more information on UL 508C thermal memory
retention requirements, refer to the section Motor Thermal
Protection in the product-specic design guide.
For more information on compliance with the European
Agreement concerning International Carriage of Dangerous
Goods by Inland Waterways (ADN), refer to the section
ADN-compliant Installation in the product-specic design
guide.
Introduction Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 5
11

2 Safety
2.1 Safety Symbols
The following symbols are used in this guide:
WARNING
Indicates a potentially hazardous situation that could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that could
result in minor or moderate injury. It can also be used to
alert against unsafe practices.
NOTICE
Indicates important information, including situations that
can result in damage to equipment or property.
2.2 Qualied Personnel
Correct and reliable transport, storage, installation,
operation, and maintenance are required for the trouble-
free and safe operation of the frequency converter. Only
qualied personnel are allowed to install and operate this
equipment.
Qualied personnel are dened as trained sta, who are
authorized to install, commission, and maintain equipment,
systems, and circuits in accordance with pertinent laws and
regulations. Also, the qualied personnel must be familiar
with the instructions and safety measures described in this
manual.
2.3 Safety Precautions
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualied personnel can result in death or serious
injury.
•Only qualied personnel must perform instal-
lation, start-up, and maintenance.
•Before performing any service or repair work,
use an appropriate voltage measuring device to
make sure that there is no remaining voltage on
the frequency converter.
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor may start at any
time. Unintended start during programming, service, or
repair work can result in death, serious injury, or
property damage. The motor can start via an external
switch, a eldbus command, an input reference signal
from the LCP, or after a cleared fault condition.
To prevent unintended motor start:
•Disconnect the frequency converter from the
mains.
•Press [O/Reset] on the LCP before
programming parameters.
•Completely wire and assemble the frequency
converter, motor, and any driven equipment
before connecting the frequency converter to
AC mains, DC supply, or load sharing.
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors,
which can remain charged even when the frequency
converter is not powered. High voltage can be present
even when the warning LED indicator lights are o.
Failure to wait the specied time after power has been
removed before performing service or repair work can
result in death or serious injury.
•Stop the motor.
•Disconnect AC mains and remote DC-link power
supplies, including battery back-ups, UPS, and
DC-link connections to other frequency
converters.
•Disconnect or lock PM motor.
•Wait for the capacitors to discharge fully. The
minimum waiting time is specied in Table 2.1
and is also visible on the product label on top
of the frequency converter.
•Before performing any service or repair work,
use an appropriate voltage measuring device to
make sure that the capacitors are fully
discharged.
Safety VLT®AutomationDrive FC 301/302
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22

Voltage [V] Minimum waiting time (minutes)
4 7 15
200–240 0.25–3.7 kW
(0.34–5 hp)
– 5.5–37 kW
(7.5–50 hp)
380–500 0.25–7.5 kW
(0.34–10 hp)
– 11–75 kW
(15–100 hp)
525–600 0.75–7.5 kW
(1–10 hp)
– 11–75 kW
(15–100 hp)
525–690 – 1.5–7.5 kW
(2–10 hp)
11–75 kW
(15–100 hp)
Table 2.1 Discharge Time
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly can result in death or
serious injury.
•Ensure the correct grounding of the equipment
by a certied electrical installer.
WARNING
EQUIPMENT HAZARD
Contact with rotating shafts and electrical equipment
can result in death or serious injury.
•Ensure that only trained and qualied personnel
perform installation, start-up, and maintenance.
•Ensure that electrical work conforms to national
and local electrical codes.
•Follow the procedures in this guide.
WARNING
UNINTENDED MOTOR ROTATION
WINDMILLING
Unintended rotation of permanent magnet motors
creates voltage and can charge the unit, resulting in
death, serious injury, or equipment damage.
•Ensure that permanent magnet motors are
blocked to prevent unintended rotation.
CAUTION
INTERNAL FAILURE HAZARD
An internal failure in the frequency converter can result
in serious injury when the frequency converter is not
properly closed.
•Ensure that all safety covers are in place and
securely fastened before applying power.
Safety Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 7
22

3 Mechanical Installation
3.1 Unpacking
3.1.1 Items Supplied
Items supplied vary according to product conguration.
•Make sure that the items supplied and the
information on the nameplate correspond to the
order conrmation.
•Check the packaging and the frequency converter
visually for damage caused by inappropriate
handling during shipment. File any claim for
damage with the carrier. Retain damaged parts
for clarication.
130BD600.11
CHASSIS/ IP20 Tamb.50 C/122 F
V LT
MADE IN DENMARK
R
P/N: 131X3537 S/N: 010122G430
0.37kW/ 0.50HP
IN: 3x200-240V 50/60Hz 2.2A
OUT: 3x0-Vin 0-590Hz 2.4A
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
X
3 5 3 7 0 1 0 1 2 2 G 4 3 0 *
`
Automation Drive
www.danfoss.com
T/C: FC-302PK37T2E20H1BGXXXXSXXXXA6BKC4XXXD0
Listed 76X1 E134261 Ind. Contr. Eq.
o
`
1
2
4
5
6
78
9
10
3
1 Type code
2 Code 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 size and IP rating
8 Maximum ambient temperature
9Certications
10 Discharge time (Warning)
Illustration 3.1 Product Nameplate (Example)
NOTICE
Do not remove the nameplate from the frequency
converter (loss of warranty).
Ensure that the requirements for storage are fullled. Refer
to chapter 8.4 Ambient Conditions for further details.
3.2 Installation Environments
NOTICE
In environments with airborne liquids, particles, or
corrosive gases, ensure that the IP/type rating of the
equipment matches the installation environment. Failure
to meet requirements for ambient conditions can reduce
the lifetime of the frequency converter. Ensure that
requirements for air humidity, temperature, and altitude
are met.
Vibration and shock
The frequency converter complies with requirements for
units mounted on the walls and oors of production
premises, and in panels bolted to walls or oors.
For detailed ambient conditions specications, refer to
chapter 8.4 Ambient Conditions.
3.3 Mounting
NOTICE
Improper mounting can result in overheating and
reduced performance.
Mechanical Installation VLT®AutomationDrive FC 301/302
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33

Cooling
•Ensure that top and bottom clearance for air
cooling is provided. See Illustration 3.2 for
clearance requirements.
a
a
130BD528.10
Illustration 3.2 Top and Bottom Cooling Clearance
Enclosure A1–A5 B1–B4 C1, C3 C2, C4
a [mm (in)] 100 (3.9) 200 (7.8) 200 (7.8) 225 (8.9)
Table 3.1 Minimum Airow Clearance Requirements
Lifting
•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.
WARNING
HEAVY LOAD
Unbalanced loads can fall and loads can tip over. Failure
to take proper lifting precautions increases risk of death,
serious injury, or equipment damage.
•Never walk under suspended loads.
•To guard against injury, wear personal
protective equipment such as gloves, safety
glasses, and safety shoes.
•Be sure to use lifting devices with the
appropriate weight rating. To determine a safe
lifting method, check the weight of the unit, see
chapter 8.9 Power Ratings, Weight, and
Dimensions.
•The angle from the top of the drive module to
the lifting cables has an impact on the
maximum load force on the cable. This angle
must be 65°or greater. Attach and dimension
the lifting cables properly.
Mounting
1. Ensure that the strength of the mounting location
supports the unit weight. The frequency
converter allows side-by-side installation.
2. Locate the unit as near to the motor as possible.
Keep the motor cables as short as possible.
3. Mount the unit vertically to a solid at surface or
to the optional backplate to provide cooling
airow.
4. Use the slotted mounting holes on the unit for
wall mount, when provided.
Mounting with mounting plate and railings
A mounting plate is required when mounted on railings.
130BD504.10
Illustration 3.3 Proper Mounting with Mounting Plate
Mechanical Installation Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 9
33

4 Electrical Installation
4.1 Safety Instructions
See chapter 2 Safety for general safety instructions.
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run
together can charge equipment capacitors, even with the
equipment turned o and locked out. Failure to run
output motor cables separately or to use shielded cables
could result in death or serious injury.
•Run output motor cables separately, or
•Use shielded cables.
CAUTION
SHOCK HAZARD
The frequency converter can cause a DC current in the
PE conductor. Failure to follow the recommendation may
lead to the RCD not providing the intended protection.
•When a residual current-operated protective
device (RCD) is used for protection against
electrical shock, only an RCD of Type B is
allowed on the supply side.
Overcurrent protection
•Extra protective equipment, such as short-circuit
protection or motor thermal protection between
frequency converter and motor, is required for
applications with multiple motors.
•Input fusing is required to provide short-circuit
and overcurrent protection. If not factory-
supplied, the installer must provide fuses. See
maximum fuse ratings in chapter 8.7 Fuses and
Circuit Breakers.
Wire type and ratings
•All wiring must comply with local and national
regulations regarding cross-section and ambient
temperature requirements.
•Power connection wire recommendation:
Minimum 75 °C (167 °F) rated copper wire.
See chapter 8.1 Electrical Data and chapter 8.5 Cable Speci-
cations for recommended wire sizes and types.
4.2 EMC-compliant Installation
To obtain an EMC-compliant installation, follow the
instructions provided in chapter 4.3 Grounding,
chapter 4.4 Wiring Schematic, chapter 4.5 Motor Connection,
and chapter 4.7 Control Wiring.
4.3 Grounding
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly could result in death or
serious injury.
•Ensure the correct grounding of the equipment
by a certied electrical installer.
For electrical safety
•Ground the frequency converter in accordance
with applicable standards and directives.
•Use a dedicated ground wire for input power,
motor power, and control wiring.
•Do not ground 1 frequency converter to another
in a daisy-chain fashion (see Illustration 4.1).
•Keep the ground wire connections as short as
possible.
•Follow motor manufacturer wiring requirements.
•Minimum cable cross-section for the ground
wires: 10 mm2(7 AWG).
•Separately terminate individual ground wires,
both complying with the dimension
requirements.
Electrical Installation VLT®AutomationDrive FC 301/302
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44

130BC500.10
FC 1
FC 1
FC 2
FC 2
FC 3
FC 3
PE
PE
Illustration 4.1 Grounding Principle
For EMC-compliant installation
•Establish electrical contact between the cable
shield and the frequency converter enclosure by
using metal cable glands or by using the clamps
provided on the equipment (see chapter 4.5 Motor
Connection).
•Use high-strand wire to reduce burst transient.
•Do not use pigtails.
NOTICE
POTENTIAL EQUALIZATION
Risk of burst transient when the ground potential
between the frequency converter and the control system
is dierent. Install equalizing cables between the system
components. Recommended cable cross-section: 16 mm2
(6 AWG).
Electrical Installation Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 11
44

4.4 Wiring Schematic
130BD599.11
3-phase
–
power
–
input
DC bus Switch Mode
Power Supply
Motor
Analog Output
Interface
relay1
relay21)
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)1)
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 RS485) 68
(N RS485) 69
(COM RS485) 612)
0 V
5V
S801
0/4–20 mA
RS-485
RS485
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)1)
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
S201
ON
21
S202
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
240 V AC, 2 A
400 V AC, 2 A
: Ground
: Ground 1
: Ground 2
: PE
Illustration 4.2 Basic Wiring Schematic
A=Analog, D=Digital
1) Terminal 37 (optional) is used for Safe Torque O (STO). For installation instructions, refer to the VLT
®
Safe Torque O
Operating Guide. For FC 301, terminal 37 is only included in enclosure size A1. Relay 2 and terminal 29 have no function in
FC 301.
2) Do not connect cable shield.
Electrical Installation VLT®AutomationDrive FC 301/302
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44

e30bf228.11
L1
L2
L3
PE
PE
u
v
w
2
1
3
5
16
17
18
14
12
8
7
10
9
4
11
13
4
6
15
90
1 PLC. 10 Mains cable (unshielded).
2Minimum 16 mm2(6 AWG) equalizing cable. 11 Output contactor.
3 Control cables. 12 Cable insulation stripped.
4 Minimum 200 mm (7.9 in) between control cables, motor
cables, and mains cables.
13 Common ground busbar. Follow local and national
requirements for cabinet grounding.
5 Mains supply. 14 Brake resistor.
6 Bare (unpainted) surface. 15 Metal box.
7 Star washers. 16 Connection to motor.
8 Brake cable (shielded). 17 Motor.
9 Motor cable (shielded). 18 EMC cable gland.
Illustration 4.3 Example of Proper EMC Installation
Electrical Installation Operating Guide
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44

For more information about EMC, see chapter 4.2 EMC-compliant Installation
NOTICE
EMC INTERFERENCE
Use shielded cables for motor and control wiring, and
separate cables for input power, motor wiring, and
control wiring. Failure to isolate power, motor, and
control cables can result in unintended behavior or
reduced performance. Minimum 200 mm (7.9 in)
clearance is required between power, motor, and control
cables.
4.5 Motor Connection
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run
together can charge equipment capacitors, even with the
equipment turned o and locked out. Failure to run
output motor cables separately or use shielded cables
could result in death or serious injury.
•Run output motor cables separately, or
•Use shielded cables.
•Comply with local and national electrical codes
for cable sizes. For maximum wire sizes, see
chapter 8.1 Electrical Data.
•Follow motor manufacturer wiring requirements.
•Motor wiring knockouts or access panels are
provided at the base of IP21 (NEMA1/12) and
higher units.
•Do not wire a starting or pole-changing device
(for example Dahlander motor or slip ring
asynchronous motor) between the frequency
converter and the motor.
Procedure for grounding the cable shield
1. Strip a section of the outer cable insulation.
2. Position the stripped wire under the cable clamp
to establish mechanical xation and electrical
contact between the cable shield and ground.
3. Connect the ground wire to the nearest
grounding terminal in accordance with the
grounding instructions provided in
chapter 4.3 Grounding, see Illustration 4.4.
4. Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W), see Illustration 4.4.
5. Tighten the terminals in accordance with the
information provided in chapter 8.8 Connection
Tightening Torques.
130BD531.10
U
VW
96
97
98
Illustration 4.4 Motor Connection
Illustration 4.5 shows mains input, motor, and grounding
for basic frequency converters. Actual congurations vary
with unit types and optional equipment.
+DC
BR- B
MAINS
L1 L2 L3
91 92 93
RELAY 1 RELAY 2
99
U V W
MOTOR
99
130BF048.11
Illustration 4.5 Example of Motor, Mains, and Ground Wiring
Electrical Installation VLT®AutomationDrive FC 301/302
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44

4.6 AC Mains Connection
•Size the wiring based on the input current of the
frequency converter. For maximum wire sizes, see
chapter 8.1 Electrical Data.
•Comply with local and national electrical codes
for cable sizes.
Procedure
1. Connect the 3-phase AC input power wiring to
terminals L1, L2, and L3 (see Illustration 4.5).
2. Depending on the conguration of the
equipment, connect the input power to the
mains input terminals or the input disconnect.
3. Ground the cable in accordance with the
grounding instructions provided in
chapter 4.3 Grounding.
4. When supplied from an isolated mains source (IT
mains or oating delta) or TT/TN-S mains with a
grounded leg (grounded delta), ensure that
parameter 14-50 RFI Filter is set to [0] O. This
setting prevents damage to the DC link and
reduces ground capacity currents in accordance
with IEC 61800-3.
4.7 Control Wiring
•Isolate the control wiring from the high-power
components in the frequency converter.
•When the frequency converter 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.
4.7.1 Safe Torque O (STO)
To run STO, more wiring for the frequency converter is
required. Refer to VLT
®
Frequency Converters Safe Torque O
Operating Guide for further information.
4.7.2 Mechanical Brake Control
In hoisting/lowering applications, it is necessary to
control an electro-mechanical brake.
•Control the brake using any relay output or
digital output (terminal 27 or 29).
•Keep the output closed (voltage-free) as long as
the frequency converter is unable to keep the
motor at standstill, for example due to the load
being too heavy.
•Select [32] Mechanical brake control in parameter
group 5-4* Relays for applications with an electro-
mechanical brake.
•The brake is released when the motor current
exceeds the value in parameter 2-20 Release Brake
Current.
•The brake is engaged when the output frequency
is less than the frequency set in
parameter 2-21 Activate Brake Speed [RPM] or
parameter 2-22 Activate Brake Speed [Hz], and only
if the frequency converter carries out a stop
command.
If the frequency converter is in alarm mode or in an
overvoltage situation, the mechanical brake immediately
closes.
NOTICE
The frequency converter is not a safety device. It is the
responsibility of the system designer to integrate safety
devices according to relevant national crane/lift
regulations.
130BA902.10
L1 L2 L3
U V W
02 01
A1
A2
Frequency converter Output
relay
Command circuit
220 V AC
Mechanical
brake
Shaft
Motor
Freewheeling
diode
Brake
380 V AC
Output
contactor
input
power circuit
Illustration 4.6 Connecting the Mechanical Brake to the
Frequency Converter
Electrical Installation Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 15
44

4.8 Installation Check List
Before completing installation of the unit, inspect the entire installation as detailed in Table 4.1. Check and mark the items
when completed.
Inspect for Description ☑
Auxiliary equipment •Look for auxiliary equipment, switches, disconnects, or input fuses/circuit breakers, residing on the input
power side of the frequency converter, or output side to the motor. Ensure that they are ready for full-
speed operation.
•Check the function and installation of any sensors used for feedback to the frequency converter.
•Remove any power factor correction caps on the motor.
•Adjust any power factor correction caps on the mains side and ensure that they are dampened.
Cable routing •Ensure that the motor wiring and control wiring are separated, shielded, or in 3 separate metallic conduits
for high frequency interference isolation.
Control wiring •Check for broken or damaged wires and loose connections.
•Check that the control wiring is isolated from power and motor wiring for noise immunity.
•Check the voltage source of the signals, if necessary.
The use of shielded cable or twisted pair is recommended. Ensure that the shield is terminated correctly.
Cooling clearance •Ensure that the top and bottom clearance is adequate to ensure proper airow for cooling, see
chapter 3.3.1 Mounting.
Ambient conditions •Check that requirements for ambient conditions are met.
Fusing and circuit
breakers
•Check for proper fusing or circuit breakers.
•Check that all fuses are inserted rmly and are in operational condition, and that all circuit breakers are in
the open position.
Grounding •Check for sucient ground connections and ensure that those connections are tight and free of oxidation.
•Grounding to conduit, or mounting the back panel to a metal surface, is not a suitable grounding.
Input and output
power wiring
•Check for loose connections.
•Check that the motor and mains cables are in separate conduit or separated shielded cables.
Panel interior •Inspect that the unit interior is free of dirt, metal chips, moisture, and corrosion.
•Check that the unit is mounted on an unpainted metal surface.
Switches •Ensure that all switch and disconnect settings are in the proper positions.
Vibration •Check that the unit is mounted solidly, or that shock mounts are used, as necessary.
•Check for an unusual amount of vibration.
Table 4.1 Installation Check List
CAUTION
POTENTIAL HAZARD IN THE EVENT OF INTERNAL FAILURE
Risk of personal injury if the frequency converter is not properly closed.
•Before applying power, ensure that all safety covers are in place and securely fastened.
Electrical Installation VLT®AutomationDrive FC 301/302
16 Danfoss A/S © 05/2018 All rights reserved. MG33AT02
44

5 Commissioning
5.1 Safety Instructions
See chapter 2 Safety for general safety instructions.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input power. Failure to perform
installation, start-up, and maintenance by qualied
personnel could result in death or serious injury.
•Installation, start-up, and maintenance must be
performed by qualied personnel only.
NOTICE
The front covers with warning signs are an integrated
part of the frequency converter and considered safety
covers. The covers must be in place before applying
power and at all times.
Before applying power:
1. Close the safety cover properly.
2. Check that all cable glands are rmly tightened.
3. Ensure that input power to the unit is o and
locked out. Do not rely on the frequency
converter disconnect switches for input power
isolation.
4. Verify that there is no voltage on input terminals
L1 (91), L2 (92), and L3 (93), phase-to-phase, and
phase-to-ground.
5. Verify that there is no voltage on output
terminals 96 (U), 97 (V), and 98 (W), phase-to-
phase, and phase-to-ground.
6. Conrm continuity of the motor by measuring Ω
values on U–V (96–97), V–W (97–98), and W–U
(98–96).
7. Check for proper grounding of the frequency
converter and the motor.
8. Inspect the frequency converter for loose
connections on the terminals.
9. Conrm that the supply voltage matches the
voltage of the frequency converter and the
motor.
Commissioning Operating Guide
MG33AT02 Danfoss A/S © 05/2018 All rights reserved. 17
55

5.2 Local Control Panel Operation
130BF714.10
Auto
On Reset
Hand
On O
Status Quick
Menu
Main
Menu
Alarm
Log
Back
Cancel
Info
OK
Status 1(1)
36.4 kW
Auto Remote Ramping
0.000
On
Alarm
Warn.
7.83 A
799 RPM
53.2 %
1
2
3
16
17
4
15
14
13
12
5
6
7
8 9 10 11
Key Function
1 The information shown in the display area depends on the selected function or menu (in this case Quick Menu
Q3-13 Display Settings).
2 Status Shows operational information.
3 Quick Menu Allows access to programming parameters for initial set-up instructions and many detailed application instructions.
4 Back Reverts to the previous step or list in the menu structure.
5 Green indicator
light.
Power on.
6 Yellow indicator
light.
The indicator light comes on when a warning is active. A text appears in the display area identifying the problem.
7 Red indicator
light.
A fault condition causes the indicator light to ash, and an alarm text is shown.
8 [Hand On] Puts the frequency converter in local control mode, so that it responds to the LCP.
•An external stop signal by control input or serial communication overrides the local [Hand On].
9O Stops the motor but does not remove power to the frequency converter.
10 [Auto On] Puts the system in remote operational mode.
•Responds to an external start command by control terminals or serial communication.
11 Reset Resets the frequency converter manually after a fault has been cleared.
12 OK Press to access parameter groups or to enable a selection.
13 Navigation Keys Press the navigation keys to move between items in the menu.
14 Info Press for a denition of the function being shown.
15 Cancel Cancels the last change or command as long as the display mode is not changed.
16 Main Menu Allows access to all programming parameters.
17 Alarm Log Shows a list of current warnings, the last 10 alarms, and the maintenance log.
Illustration 5.1 Graphic Local Control Panel (GLCP)
Commissioning VLT®AutomationDrive FC 301/302
18 Danfoss A/S © 05/2018 All rights reserved. MG33AT02
55