Danfoss VLT HVAC Basic Drive FC 101 Operating Manual page 64

Operating Guide | VLT® HVAC Basic Drive FC 101
Fault Alarm/ Fault text
num‐ warning
ber bit num‐
ber
47 23 24 V supply
low
50 – AMA calibra-
tion failed
51 15 AMA Unom,
Inom
52 – AMA low In-
om
53 – AMA big mo-
tor
54 – AMA small
mot
55 – AMA par.
range
56 – AMA user in-
terrupt
57 – AMA timeout
58 – AMA internal
59 25 Current limit
60 44 External In-
terlock
66 26 Heat sink
Temperature
Low
69 1 Pwr. Card
Temp
70 36 Illegal FC
configuration
79 – Illegal power
section con-
figuration
64 | Danfoss A/S © 2019.11
Warn‐ Alarm Trip
ing locked
X X X
– X –
– X –
– X –
– X –
– X –
– X –
– X –
– X –
X X –
X – –
– X –
X – –
X X X
– X X
X X –
Cause of problem
24 V DC supply may be overloaded.
Contact the local Danfoss supplier.
The setting of motor voltage, motor current, and motor
power is wrong. Check the settings.
The motor current is too low. Check the settings.
The motor is too big to perform AMA.
The motor is too small to perform AMA.
The parameter values found from the motor are outside
the acceptable range.
The AMA has been interrupted by the user.
Try to start the AMA again a number of times, until the
AMA is carried out.
N O T I C E
Repeated runs may heat the motor to a level
where the resistance R and R
s
most cases, however, this is not critical.
Contact the local Danfoss supplier.
The current is higher than the value in parameter 4-18
Current Limit.
External interlock has been activated. To resume normal
operation, apply 24 V DC to the terminal programmed for
external interlock and reset the drive (via serial communi-
cation, digital I/O, or by pressing [Reset] key on the LCP).
This warning is based on the temperature sensor in the
IGBT module (on 400 V, 30–90 kW (40–125 hp) and 600 V
units).
The temperature sensor on the power card exceeds the
upper or lower limits.
The control card and power card are not matched.
Internal fault. Contact the local Danfoss supplier.
AQ275641848264en-000101 / 132R0078
Warnings and Alarms
are increased. In
r