Danfoss VLT CDS 803 Operating Manual page 41

Operating Guide | VLT® Compressor Drive CDS 803
Fault Alarm/ Fault text
num‐ warning
ber bit num‐
ber
44 28 Earth Fault
46 33 Control Volt-
age Fault
47 23 24 V supply
low
50 – AMA calibra-
tion failed
51 15 AMA U
52 – AMA low I
53 – AMA big motor
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 Inter-
lock
66 26 Heat sink Tem-
perature Low
69 1 Pwr. Card
Temp
70 36 Illegal FC con-
figuration
79 – Illegal power
section config-
uration
Danfoss A/S © 2019.12
Warn‐ Alarm
ing
– X
– X
X X
– X
, I – X
nom nom
– X
nom
– X
– X
– X
– X
– X
X X
X –
– X
X –
X X
– X
X X
Trip Cause of problem
lock
X Discharge from output phases to ground, using the value
of parameter 15-31 Alarm Log Value if possible.
X Control voltage is low. Contact the local Danfoss supplier.
X 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.
– Try to start the AMA again some times, until the AMA is
carried out.
Repeated runs may heat the motor to a level
where the resistance R
ally, however, this is not critical.
– Contact the local Danfoss supplier.
– The current is higher than the value in parameter 4-18 Cur-
rent 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] on the LCP).
– This warning is based on the temperature sensor in the
IGBT module (on 400 V, 30 kW (40 hp) and 600 V units).
X The temperature sensor on the power card exceeds the
upper or lower limits.
X The control card and power card are not matched.
– Internal fault. Contact the local Danfoss supplier.
Troubleshooting
N O T I C E
and R are increased. Usu-
s r
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