Danfoss VLT CDS 803 Operating Manual page 30

VLT® Compressor Drive CDS 803
Operating Guide
Fault Fault text
number
46 Gate drive voltage
fault
47 24V supply low
49 Speed limit
50 AMA calibration
51 AMA check
U ,I
nom nom
52 AMA low,I
nom
53 AMA big motor
54 AMA small mot
55 AMA par. range
56 AMA interrupt
57 AMA timeout
58 AMA internal
59 Current limit
60 External interlock
66 Heat Sink Tempera-
ture Low
69 Pwr. Card Temp
80 Drive initialised
87 Auto DC Braking
95 Broken belt
96 Start delayed
97 Stop delayed
30 | Danfoss A/S © 2021.06
Warn- Alarm Trip
ing locked
X X
X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
(3)
X X X
X
X
X X
(2) (2)
X
X
Cause of problem
The supply on the power card is out of range.
24 V DC may be overloaded.
The compressor runs at a speed lower than specified in pa-
rameter 1-87 Compressor Min Speed for Trip [Hz].
AMA calibration failed
Motor voltage, current and power configured wrong in pa-
rameters.
Motor current too low.
Motor is too large for the AMA to be performed.
Motor is too small for the AMA to be performed.
Parameter values found is outside of the acceptable range.
The AMA is interrupted by user.
The AMA takes too long time to complete.
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 oper-
ation, apply 24 V DC to the terminal programmed for external
interlock and reset the drive (via serial communication, digital
I/O, or by pressing [Off/Reset]).
This warning is based on the temperature sensor in the IGBT
module.
The internal temperature has exceeded the allowed operating
boundary. Check that the ambient operating temperature is
within the limits. Check the fan operation.
All parameter settings are initialized to default settings.
The drive is auto DC braking.
The torque is below the torque level set for no load indicating
a broken belt.
Power to the drive has been on for a shorter time than speci-
fied in parameter 28-01 Interval Between Starts twice.
Stopping the motor has been delayed due to short cycle pro-
tection being active.
AQ321748767627en-000301 / 130R0570
Troubleshooting