Danfoss VLT HVAC Basic Drive FC 101 Operating Manual page 65

Operating Guide | VLT® HVAC Basic Drive FC 101
Fault Alarm/ Fault text
num‐ warning
ber bit num‐
ber
80 29 Drive initial-
ised
87 47 Auto DC
Braking
95 40 Broken Belt
126 – Motor Rotat-
ing
200 – Fire Mode
202 – Fire Mode
Limits Excee-
ded
250 – New spare-
part
251 – New Type-
code
Danfoss A/S © 2019.11
Warn‐ Alarm Trip
ing locked
– X –
X – –
X X –
– X –
X – –
X – –
– X X
– X X
Cause of problem
All parameter settings are initialized to default settings.
The drive is auto DC braking.
Torque is below the torque level set for no load, indicat-
ing a broken belt. See parameter group 22-6* Broken Belt
Detection.
High back EMF voltage. Stop the rotor of the PM motor.
Fire mode has been activated.
Fire mode has suppressed 1 or more warranty voiding
alarms.
The power or switch mode power supply has been ex-
changed (on 400 V, 30–90 kW (40–125 hp) and 600 V
units). Contact the local Danfoss supplier.
The drive has a new type code (on 400 V, 30– 90 kW (40–
125 hp) and 600 V units). Contact the local Danfoss sup-
plier.
AQ275641848264en-000101 / 132R0078| 65
Warnings and Alarms