Danfoss FC 131 Operating guide
Operating Guide
VLT® HVAC Drive FC 131
vlt-drives.danfoss.com 
VLT® HVAC Drive FC 131 |
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Operating Guide |
Contents |
Contents
1 Introduction |
6 |
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1.1 |
Purpose of this Operating Guide |
6 |
1.2 |
Additional Resources |
6 |
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1.2.1 Other Resources |
6 |
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1.2.2 MCT 10 Setup Software Support |
6 |
1.3 |
Document and Software Version |
6 |
1.4 |
Certificates and Approvals |
7 |
1.5 |
Disposal |
7 |
2 Safety |
8 |
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2.1 |
Safety Symbols |
8 |
2.2 |
Qualified Personnel |
8 |
2.3 |
Safety Precautions |
8 |
2.4 |
Motor Thermal Protection |
9 |
3 Installation |
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10 |
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3.1 |
Mechanical Installation |
10 |
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3.1.1 |
Side-by-side Installation |
10 |
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3.1.2 |
Drive Dimensions |
10 |
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3.2 |
Electrical Installation |
11 |
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3.2.1 Electrical Installation in General |
11 |
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3.2.2 |
IT Mains |
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11 |
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3.2.3 Mains and Motor Connection |
12 |
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3.2.3.1 |
Introduction |
12 |
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3.2.3.2 Connecting to Mains and Motor |
13 |
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3.2.3.3 |
Enclosure Size I2 |
13 |
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3.2.3.4 |
Enclosure Size I3 |
14 |
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3.2.3.5 |
Enclosure Size I4 |
15 |
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3.2.3.6 IP54 Enclosure Sizes I2, I3, I4 |
16 |
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3.2.3.7 |
Enclosure size I6 |
16 |
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3.2.3.8 Enclosure size I7, I8 |
18 |
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3.2.4 Fuses and Circuit Breakers |
18 |
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3.2.4.1 |
Branch Circuit Protection |
18 |
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3.2.4.2 |
Short-circuit Protection |
18 |
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3.2.4.3 |
Overcurrent Protection |
18 |
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3.2.4.4 |
UL/Non-UL Compliance |
18 |
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3.2.4.5 Recommendation of Fuses and Circuit Breakers |
18 |
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VLT® HVAC Drive FC 131 |
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Operating Guide |
Contents |
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3.2.5 |
EMC-compliant Electrical Installation |
19 |
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3.2.6 |
Control Terminals |
20 |
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3.2.7 |
Electrical Wiring |
22 |
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3.2.8 |
Acoustic Noise or Vibration |
22 |
4 |
Programming |
23 |
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4.1 |
Local Control Panel (LCP) |
23 |
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4.2 |
Set-up Wizard |
24 |
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4.2.1 |
Setup Wizard Introduction |
24 |
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4.2.2 |
Setup Wizard for Open-loop Applications |
25 |
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4.2.3 |
Setup Wizard for Closed-loop Applications |
31 |
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4.2.4 |
Motor Setup |
36 |
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4.2.5 |
Changes Made Function |
40 |
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4.2.6 |
Changing Parameter Settings |
40 |
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4.2.7 |
Accessing All Parameters via the Main Menu |
40 |
5 |
Warnings and Alarms |
41 |
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5.1 |
List of Warnings and Alarms |
41 |
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5.2 |
LCP Errors Messages |
43 |
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6 |
Specifications |
45 |
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6.1 |
Mains Supply |
45 |
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6.1.1 |
3x380–480 V AC |
45 |
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6.2 |
EMC Emission Test Results |
47 |
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6.3 |
Special Conditions |
48 |
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6.3.1 |
Derating for Ambient Temperature and Switching Frequency |
48 |
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6.3.2 |
Derating for Low Air Pressure and High Altitudes |
48 |
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6.4 |
General Technical Data |
48 |
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6.4.1 |
Protection and Features |
48 |
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6.4.2 |
Mains Supply (L1, L2, L3) |
48 |
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6.4.3 |
Motor Output (U, V, W) |
48 |
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6.4.4 |
Cable Length and Cross-section |
48 |
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6.4.5 |
Digital Inputs |
49 |
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6.4.6 |
Analog Inputs |
49 |
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6.4.7 |
Analog Outputs |
49 |
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6.4.8 |
Digital Output |
49 |
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6.4.9 |
Control Card, RS485 Serial Communication |
50 |
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6.4.10 |
Control Card, 24 V DC Output |
50 |
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6.4.11 |
Relay Output |
50 |
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AQ367426199594en-000101/130R0988 |
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VLT® HVAC Drive FC 131 |
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Operating Guide |
Contents |
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6.4.12 |
Control Card, 10 V DC Output |
51 |
6.4.13 |
Ambient Conditions |
51 |
Danfoss A/S © 2021.06 |
AQ367426199594en-000101/130R0988 | 5 |
VLT® HVAC Drive FC 131
Operating Guide |
Introduction |
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1 Introduction
1.1 Purpose of this Operating Guide
This Operating Guide provides information for safe installation and commissioning of the AC drive. It is intended for use by qualified personnel.
Read and follow the instructions to use the drive safely and professionally.
Pay particular attention to the safety instructions and general warnings. Always keep this Operating Guide with the drive. VLT® is a registered trademark for Danfoss A/S.
1.2 Additional Resources
1.2.1 Other Resources
Other resources are available to understand advanced drive functions and programming.
•The VLT® HVAC Drive FC 131 Programming Guide provides information on how to program and includes complete parameter descriptions.
•The VLT® HVAC Drive FC 131 Design Guide provides all technical information about the drive. It also lists options and accessories.
The technical documentation is available in electronic form online at www.danfoss.com.
1.2.2 MCT 10 Setup Software Support
Download the software from the service and support section on www.danfoss.com.
During the installation process of the software, enter access code 81463800 to activate the VLT® HVAC Drive FC 131 functionality. A license key is not required for using the VLT® HVAC Drive FC 131 functionality.
The latest software does not always contain the latest updates for drives. Contact the local sales office for the latest drive updates (in the form of *.upd files), or download the drive updates from the service and support section on www.danfoss.com.
1.3 Document and Software Version
The Operating Guide is regularly reviewed and updated. All suggestions for improvement are welcome. The original language of this manual is English.
Table 1: Document and Software Version
Edition |
Remarks |
Software version |
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AQ367426199594, version 0101 |
First edition. |
4.6x |
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6 | Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 |
VLT® HVAC Drive FC 131 |
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Operating Guide |
Introduction |
1.4 Certificates and Approvals
Table 2: Certificates and Approvals
Certification |
IP54 |
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EC Declaration of Conformity |
V |
RCM |
V |
EAC |
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V |
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UkrSEPRO |
V |
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089 |
1.5 Disposal
Do not dispose of equipment containing electrical components together with domestic waste.
Collect it separately in accordance with local and currently valid legislation.
Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 | 7 |
VLT® HVAC Drive FC 131
Operating Guide |
Safety |
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2 Safety
2.1 Safety Symbols
The following symbols are used in this manual:
D A N G E R 
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
W A R N I N G 
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
C A U T I O N 
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
N O T I C E
Indicates information considered important, but not hazard-related (for example, messages relating to property damage).
2.2 Qualified Personnel
To allow trouble-free and safe operation of the unit, only qualified personnel with proven skills are allowed to transport, store, assemble, install, program, commission, maintain, and decommission this equipment.
Persons with proven skills:
•Are qualified electrical engineers, or persons who have received training from qualified electrical engineers and are suitably experienced to operate devices, systems, plant, and machinery in accordance with pertinent laws and regulations.
•Are familiar with the basic regulations concerning health and safety/accident prevention.
•Have read and understood the safety guidelines given in all manuals provided with the unit, especially the instructions given in the Operating Guide.
•Have good knowledge of the generic and specialist standards applicable to the specific application.
2.3 Safety Precautions
W A R N I N G
HIGH VOLTAGE
AC drives contain high voltage when connected to AC mains input, DC supply, or load sharing. Failure to perform installation, start-up, and maintenance by qualified personnel can result in death or serious injury.
-Only qualified personnel must perform installation, start-up, and maintenance.
W A R N I N G 
UNINTENDED START
When the drive 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. Start the motor with an external switch, a fieldbus command, an input reference signal from the local control panel (LCP), via remote operation using MCT 10 software, or after a cleared fault condition.
-Disconnect the drive from the mains.
-Press [Off/Reset] on the LCP before programming parameters.
-Ensure that the drive is fully wired and assembled when it is connected to AC mains, DC supply, or load sharing.
8 | Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 |
VLT® HVAC Drive FC 131
Operating Guide |
Safety |
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W A R N I N G 
DISCHARGE TIME
The drive contains DC-link capacitors, which can remain charged even when the drive is not powered. High voltage can be present even when the warning indicator lights are off.
Failure to wait the specified time after power has been removed before performing service or repair work could result in death or serious injury.
-Stop the motor.
-Disconnect AC mains, permanent magnet type motors, and remote DC-link supplies, including battery back-ups, UPS, and DC-link connections to other drives.
-Wait for the capacitors to discharge fully. The minimum waiting time is specified in the table Discharge time and is also visible on the nameplate on top of the drive.
-Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors are fully discharged.
Table 3: Discharge Time
Voltage [V] |
Power range [kW (hp)] |
Minimum waiting time (minutes) |
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3x400 |
0.75–7.5 (1.0–10) |
4 |
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3x400 |
11–90 (15–125) |
15 |
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W A R N I N G
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the drive properly can result in death or serious injury.
-Ensure the correct grounding of the equipment by a certified electrical installer.
W A R N I N G 
EQUIPMENT HAZARD
Contact with rotating shafts and electrical equipment can result in death or serious injury.
-Ensure that only trained and qualified personnel perform installation, start-up, and maintenance.
-Ensure that electrical work conforms to national and local electrical codes.
-Follow the procedures in this manual.
C A U T I O N 
INTERNAL FAILURE HAZARD
An internal failure in the drive can result in serious injury when the drive is not properly closed.
-Ensure that all safety covers are in place and securely fastened before applying power.
2.4 Motor Thermal Protection
Procedure
1.Set parameter 1-90 Motor Thermal Protection to [4] ETR trip 1 to enable the motor thermal protection function.
Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 | 9 |
VLT® HVAC Drive FC 131
Operating Guide |
Installation |
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3 Installation
3.1 Mechanical Installation
3.1.1 Side-by-side Installation
The drive can be mounted side by side but requires the clearance above and below for cooling.
Table 4: Clearance Required for Cooling
Size |
IP class |
Power [kW (hp)] |
Clearance above/below [mm (in)] |
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I2 |
IP54 |
0.75–4.0 (1.0–5.0) |
100 (4.0) |
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I3 |
IP54 |
5.5–7.5 (7.5–10) |
100 (4.0) |
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I4 |
IP54 |
11–18.5 (15–25) |
100 (4.0) |
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I6 |
IP54 |
22–37 (30–50) |
200 (7.9) |
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I7 |
IP54 |
45–55 (60–70) |
200 (7.9) |
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I8 |
IP54 |
75–90 (100–125) |
225 (8.9) |
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N O T I C E
The drives are not suitable for outdoor mounting.
3.1.2 Drive Dimensions
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e |
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B |
e |
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D |
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b |
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<![if ! IE]> <![endif]>f |
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d |
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<![if ! IE]> <![endif]>a |
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<![if ! IE]> <![endif]>a |
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<![if ! IE]> <![endif]>a A |
e
e
Illustration 1: Dimensions
Table 5: Dimensions, Enclosure Sizes I2–I8
<![endif]>e30bf984.10
Enclosure Size |
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I2 |
I3 |
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I4 |
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I6 |
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I7 |
I8 |
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IP class |
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IP54 |
IP54 |
IP54 |
IP54 |
IP54 |
IP54 |
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Power [kW (hp)] |
3x380–480 V |
0.75–4.0 |
5.5–7.5 |
11–18.5 |
22–37 |
45–55 |
75–90 |
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(1.0–5.0) |
(7.5–10) |
(15–25) |
(30–50) |
(60–70) |
(100–125) |
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Height [mm (in)] |
A |
332 (13.1) |
368 |
(14.5) |
476 |
(18.7) |
650 |
(25.6) |
680 (26.8) |
770 |
(30) |
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a |
318.5 (12.53) |
354 |
(13.9) |
460 |
(18.1) |
624 |
(24.6) |
648 (25.5) |
739 |
(29.1) |
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Width [mm (in)] |
B |
115 (4.5) |
135 |
(5.3) |
180 |
(7.0) |
242 |
(9.5) |
308 (12.1) |
370 |
(14.6) |
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b |
74 (2.9) |
89 (3.5) |
133 |
(5.2) |
210 |
(8.3) |
272 (10.7) |
334 |
(13.2) |
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10 | Danfoss A/S © 2021.06 |
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AQ367426199594en-000101 / 130R0988 |
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VLT® HVAC Drive FC 131 |
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Operating Guide |
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Installation |
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Enclosure Size |
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I2 |
I3 |
I4 |
I6 |
I7 |
I8 |
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Depth [mm (in)] |
C |
225 (8.9) |
237 (9.3) |
290 (11.4) |
260 (10.2) |
310 (12.2) |
335 (13.2) |
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Mounting hole [mm (in)] |
d |
11 (0.43) |
12 (0.47) |
12 (0.47) |
19 (0.75) |
19 (0.75) |
19 (0.75) |
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e |
5.5 (0.22) |
6.5 (0.26) |
6.5 (0.26) |
9 (0.35) |
9 (0.35) |
9 (0.35) |
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f |
9 (0.35) |
9.5 (0.37) |
9.5 (0.37) |
9 (0.35) |
9.8 (0.39) |
9.8 (0.39) |
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Maximum weight kg (lb) |
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5.3 (11.7) |
7.2 (15.9) |
13.8 (30.42) |
27 (59.5) |
45 (99.2) |
65 (143.3) |
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The dimensions are only for the physical units. When installing in an application, allow space above and below the units for cooling. The amount of space for free air passage is listed in 3.1.1 Side-by-side Installation.
3.2 Electrical Installation
3.2.1 Electrical Installation in General
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper conductors are required. 75 °C (167 °F) is recommended.
Table 6: Tightening Torques for Enclosure Sizes I2–I8
Power [kW (hp)] |
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Torque [Nm (in-lb)] |
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Enclosure |
IP class |
3x380–480 V |
Mains |
Motor |
DC connec- |
Control ter- |
Ground |
Relay |
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size |
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tion |
minals |
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I2 |
IP54 |
0.75–4.0 (1.0–5.0) |
0.8 |
(7.0) |
0.8 |
(7.0) |
0.8 (7.0) |
0.5 (4.0) |
0.8 (7.0) |
0.5 (4.0) |
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I3 |
IP54 |
5.5–7.5 (7.5–10) |
0.8 |
(7.0) |
0.8 |
(7.0) |
0.8 (7.0) |
0.5 (4.0) |
0.8 (7.0) |
0.5 (4.0) |
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I4 |
IP54 |
11–18.5 (15–25) |
1.2 |
(11) |
1.2 |
(11) |
0.8 (7.0) |
0.5 (4.0) |
0.8 (7.0) |
0.5 (4.0) |
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I6 |
IP54 |
22–37 (30–50) |
4.5 |
(40) |
4.5 |
(40) |
– |
0.5 (4.0) |
3 (27) |
0.6 (5.0) |
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I7 |
IP54 |
45–55 (60–70) |
10 (89) |
10 (89) |
– |
0.5 (4.0) |
3 (27) |
0.6 (5.0) |
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I8 |
IP54 |
75–90 (100–125) |
14 (124)/24 |
14 (124)/24 |
– |
0.5 (4.0) |
3 (27) |
0.6 (5.0) |
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(212)(1) |
(212)(1) |
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1 Cable dimensions ≤95 mm2.
3.2.2 IT Mains
C A U T I O N 
IT MAINS
Installation on isolated mains source, that is, IT mains.
-Ensure that the supply voltage does not exceed 440 V (3x380–480 V units) when connected to mains.
For IP54, 400 V, 0.75–18.5 kW (1.0–25 hp) units, open the RFI switch by removing the EMC screw inside the drive when at IT grid. The EMC screw is shown in the the following illustration.
Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 | 11 |
VLT® HVAC Drive FC 131 |
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Operating Guide |
Installation |
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<![if ! IE]> <![endif]>e30bc251.10 |
Illustration 2: IP54, 400 V, 0.75–18.5 kW (1–25 hp)
1 |
EMC screw |
For IP54, 400 V, 22-90 kW (30–125 hp) units, the RFI switch can be opened in parameter 14-50 RFI Filter. Select [1] On to turn the RFI filter on. The RFI filter ensures that the drive complies with EMC standards. Select [0] Off only when the drive is connected to IT mains.
N O T I C E
If reinserted, use only M3x12 screw.
3.2.3 Mains and Motor Connection
3.2.3.1 Introduction
The drive is designed to operate all standard 3-phase induction motors.
•Use a shielded/armored motor cable to comply with EMC emission specifications and connect this cable to the motor.
•Keep the motor cable as short as possible to reduce the noise level and leakage currents.
•Also see EMC-Correct Installation in the 3.2.5 EMC-compliant Electrical Installation.
12 | Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 |
VLT® HVAC Drive FC 131 |
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Operating Guide |
Installation |
3.2.3.2 Connecting to Mains and Motor
1. |
Mount the ground cables to the ground terminal. |
2. |
Connect the motor to terminals U, V, and W, and then tighten the screws according to the torques. |
3. |
Connect the mains supply to terminals L1, L2, and L3, and then tighten the screws according to the torques described in |
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3.2.1 Electrical Installation in General. |
3.2.3.3 Enclosure Size I2 |
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<![if ! IE]> <![endif]>e30bc299.10 |
1 |
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8 |
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7 |
2 |
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3
6
5
4
Illustration 3: Enclosure Size I2, IP54, 380–480 V, 0.75–4.0 kW (1.0–5.0 hp)
1 |
RS485 |
5 |
Motor |
2 |
Mains |
6 |
UDC |
3 |
Ground |
7 |
Relays |
4 |
Cable clamps |
8 |
I/O |
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Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 | 13 |
VLT® HVAC Drive FC 131 |
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Operating Guide |
Installation |
3.2.3.4 Enclosure Size I3
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Illustration 4: Enclosure Size I3, IP54, 380–480 V, 5.5–7.5 kW (7.5–10 hp)
1 |
RS485 |
5 |
Motor |
2 |
Mains |
6 |
UDC |
3 |
Ground |
7 |
Relays |
4 |
Cable clamps |
8 |
I/O |
|
|
|
|
14 | Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 |
VLT® HVAC Drive FC 131 |
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Operating Guide |
Installation |
3.2.3.5 Enclosure Size I4
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Illustration 5: Enclosure Size I4, IP54, 380–480 V, 11–18.5 kW (15–25 hp)
1 |
RS485 |
5 |
Motor |
2 |
Mains |
6 |
UDC |
3 |
Ground |
7 |
Relays |
4 |
Cable clamps |
8 |
I/O |
|
|
|
|
Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 | 15 |
VLT® HVAC Drive FC 131 |
|
Operating Guide |
Installation |
3.2.3.6 IP54 Enclosure Sizes I2, I3, I4
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Illustration 6: IP54 Enclosure Sizes I2, I3, I4
3.2.3.7 Enclosure size I6
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Illustration 7: Connecting to Mains for Enclosure Size I6, IP54, 380–480 V, 22–37 kW (30–50 hp)
16 | Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 |
VLT® HVAC Drive FC 131 |
|
Operating Guide |
Installation |
|
<![if ! IE]> <![endif]>e30bt325.10 |
Illustration 8: Connecting to Motor for Enclosure Size I6, IP54, 380–480 V, 22–37 kW (30–50 hp)
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01 |
02 |
|
|
30 |
|
|
|
40 50
90
Illustration 9: Relays on Enclosure Size I6, IP54, 380–480 V, 22–37 kW (30–50 hp)
Danfoss A/S © 2021.06 |
AQ367426199594en-000101 / 130R0988 | 17 |
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