VLT® Compressor Drive CDS 803
Operating Guide
Fault
Alarm/
Fault text
num-
warning
ber
bit num-
ber
44
28
Earth Fault
46
33
Control Voltage
Fault
47
23
24 V supply low
50
–
AMA calibration
failed
51
15
AMA U
52
–
AMA low I
53
–
AMA big motor
54
–
AMA small mot
55
–
AMA par. range
56
–
AMA user inter-
rupt
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
30 | 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.
N O T I C E
Repeated runs may heat the motor to a level where the
resistance R
and R
are increased. Usually, however, this
s
r
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
AQ32174876762701-000101 / 130R0627