Troubleshooting
No.
Description
318
CT Ratio Error
Table 9.5 Alarm/Warning code list
A trip is the action when an alarm has appeared. The trip
will coast the motor and can be reset by pressing [Reset]
or make a reset by a digital input (Par. 5-1* [1]). The origin
event that caused an alarm cannot damage the frequency
converter or cause dangerous conditions. A trip lock is an
action when an alarm occurs, which may cause damage to
frequency converter or connected parts. A Trip Lock
situation can only be reset by a power cycling.
Alarm Word and Extended Status Word
Bit
Hex
0
00000001
1
00000002
2
00000004
3
00000008
4
00000010
5
00000020
6
00000040
7
00000080
9
9
8
00000100
9
00000200
10
00000400
11
00000800
12
00001000
13
00002000
14
00004000
15
00008000
16
00010000
17
00020000
18
00040000
19
00080000
20
00100000
21
00200000
22
00400000
23
00800000
24
01000000
25
02000000
26
04000000
27
08000000
28
10000000
29
20000000
30
40000000
31
80000000
Table 9.7 Description of Alarm Word, Warning Word and Extended Status Word
The alarm words, warning words and extended status
words can be read out via serial bus or optional fieldbus
for diagnosis. See also 16-90 Alarm Word, 16-92 Warning
Word and 16-94 Ext. Status Word. "Reserved" means that
160
VLT Automation Low Harmonic Drive Operating Instructions
Warning
Dec
Alarm Word
1
Mains Cont. Fault
2
Heatsink Temp
4
Earth Fault
8
Ctrl.Card Temp
16
Ctrl. Word TO
32
Over Current
64
SC Cont. Fault
128
Cap. Over Current
256
Cap. Earth Fault
512
Inverter Overld.
1024
DC under Volt
2048
DC over Volt
4096
Short Circuit
8192
Inrush Fault
16384
Mains ph. Loss
32768
Auto CT Error
65536
Reserved
131072
Internal Fault
262144
DC Over Current
524288
Resistor temp
1048576
Mains Earth Fault
2097152
Switch. Freq. Limit
4194304
Fieldbus Fault
8388608
24 V Supply Low
16777216
CT Range
33554432
1.8V Supply Low
67108864
Reserved
134217728
Auto CT Interrupt
268435456
Option Change
536870912
Unit Initialized
1073741824
Safe Stop
2147483648
Mains Freq. Limit
®
MG34O202 - VLT
Alarm/Trip
Alarm/Trip Lock
X
LED indication
Warning
Alarm
Trip locked
Table 9.6
Warning Word
Reserved
Heatsink Temp
Earth Fault
Ctrl.Card Temp
Ctrl. Word TO
Over Current
Reserved
Cap. Over Current
Cap. Earth Fault
Inverter Overld.
DC under Volt
DC over Volt
DC Voltage Low
DC Voltage High
Mains ph. Loss
Reserved
Reserved
10V Low
DC Over Current
Resistor temp
Mains Earth Fault
Reserved
Fieldbus Fault
24V Supply Low
Reserved
Reserved
Low Temp
Reserved
Reserved
Unit Initialized
Safe Stop
Extended Status Word
the bit is not guaranteed to be any particular value.
Reserved bits should not be used for any purpose.
is a registered Danfoss trademark
Parameter Reference
yellow
flashing red
yellow and red
Extended Status Word
Reserved
Auto CT Running
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Password Time Lock
Password Protection
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
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