Danfoss vlt FC 102 Operating Guide

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7 Diagnostics and Troubleshooting
7.1 Maintenance and Service
Under normal operating conditions and load profiles, the drive is maintenance-free throughout its designed lifetime. To prevent
breakdown, danger, and damage, examine the drive for loose terminal connections, excessive dust buildup, and so on, at regular
intervals. Replace worn or damaged parts with Danfoss authorized parts. For service and support, contact the local Danfoss supplier.
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, causing risk of death,
serious injury, and equipment or property damage. The motor may start by activation of an external switch, a fieldbus command,
an input reference signal from the LCP or LOP, via remote operation using MCT 10 Set-up software, or after a cleared fault condi-
tion.
Press [Off] on the LCP before programming parameters.
Disconnect the drive from the mains whenever personal safety considerations make it necessary to avoid unintended motor
start.
Check that the drive, motor, and any driven equipment are in operational readiness.
7.2 Status Display
When the drive is in Status mode, status messages are generated automatically and appear in the bottom line of the display, see
Illustration 30.
Status
799RPM 7.83A 36.4kW
0.000
53.2%
1(1)
Auto
Hand
Off
Remote
Local
Ramping
Stop
Running
Jogging
.
.
.
Standby
e30bb037.13
1
2
3
Illustration 30: Status Display
1
Operating mode (see Table 39)
2
Reference site (see Table 40)
3
Operation status (see Table 41)
7.3 Status Message Definitions
See
Table 39 to Table 41 for definitions of the status messages.
Table 39: Operating Mode
Off
The drive does not react to any control signal until [Auto On] or [Hand On] is pressed.
Auto On
The drive is controlled from the control terminals and/or the serial communication.
Hand On
The drive is controlled by the navigation keys on the LCP. Stop commands, reset, reversing, DC brake, and other sig-
nals applied to the control terminals override local control.
AQ267037536117en-000101 / 130R0083 | 63Danfoss A/S © 2023.09
Diagnostics and Troubleshooting
VLT HVAC Drive FC 102
Operating Guide

Danfoss vlt FC 102 Specifications

General

Brand	Danfoss
Model	vlt FC 102
Category	DC Drives
Language	English