No.
Description
Warning
Alarm/Trip
Alarm/Trip Lock
Parameter
Reference
14
Earth Fault
X
X
15
Hardware mismatch
X
X
16
Short Circuit
X
X
17
Control word time-out
(X)
(X)
18
Start Failed
X
1-77 Compressor Start
Max Speed [RPM] and
1-79 Compressor Start
Max Time to Trip
19
Discharge Temp. High
X
X
28-2x Discharge Temp.
Monitor
20
Temp. Input Error
21
Param Error
22
Hoist Mech. Brake
(X)
(X)
Parameter group 2-2*
23
Internal Fans
X
24
External Fans
X
25
Brake resistor short-circuited
X
26
Brake resistor power limit
(X)
(X)
2-13 Brake Power
Monitoring
27
Brake chopper short-circuited
X
X
28
Brake check
(X)
(X)
2-15 Brake Check
29
Heatsink temp
X
X
X
30
Motor phase U missing
(X)
(X)
(X)
4-58 Missing Motor
Phase Function
31
Motor phase V missing
(X)
(X)
(X)
4-58 Missing Motor
Phase Function
32
Motor phase W missing
(X)
(X)
(X)
4-58 Missing Motor
Phase Function
33
Inrush Fault
X
X
34
Fieldbus communication fault
X
X
35
Option Fault
36
Mains failure
X
X
37
Phase imbalance
X
38
Internal Fault
X
X
39
Heatsink sensor
X
X
40
Overload of Digital Output Terminal 27
(X)
5-00 Digital I/O Mode,
5-01 Terminal 27 Mode
41
Overload of Digital Output Terminal 29
(X)
5-00 Digital I/O Mode,
5-02 Terminal 29 Mode
42
Ovrld X30/6-7
(X)
43
Ext. Supply (option)
45
Earth Fault 2
X
X
46
Pwr. card supply
X
X
47
24 V supply low
X
X
X
48
1.8 V supply low
X
X
49
Speed limit
X
1-86 Trip Speed Low
[RPM]
50
AMA calibration failed
X
51
AMA check U
nom
and I
nom
X
52
AMA low I
nom
X
53
AMA motor too big
X
54
AMA motor too small
X
Troubleshooting
Operating Instructions VLT
®
CDS302 and CDS303
MG34M302 - VLT
®
is a registered Danfoss trademark/Commercial Compressor
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