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VLT® HVAC Drive FC 131
Programming Guide
No.
Description
159
Check valve failure
200
Fire mode
202
Fire mode limits exceeded
250
New spare parts
251
New type code
(X) Dependent on parameter.
A trip is the action when an alarm has appeared. The trip coasts the motor and can be reset by pressing [Reset] or via a digital input
(parameter group 5-1* Digital Inputs [1]). The original event that caused an alarm cannot damage the drive or cause dangerous con-
ditions. A trip lock is an action when an alarm occurs, which may cause damage to the drive or connected parts. A trip lock situation
can only be reset by a power cycle.
Table 428: LED Indication
Warning
Alarm
The alarm words, warning words, and extended status words can be read out via fieldbus or optional fieldbus for diagnosis. See also
parameter 16-90 Alarm Word, parameter 16-92 Warning Word, and parameter 16-94 Ext. Status Word.
5.2 Alarm Words
Table 429: Alarm Words
Bit
Hex
Dec
0
1
1
1
2
2
2
4
4
3
8
8
4
10
16
5
20
32
6
40
64
7
80
128
8
100
256
9
200
512
10
400
1024
11
800
2048
12
1000
4096
13
2000
8192
14
4000
16384
15
8000
32768
178 | Danfoss A/S © 2022.05
Warning
Alarm
X
–
X
–
X
–
–
X
–
X
Parameter 16-90 Alarm Word
0
Pwr.card temp
Earth fault
0
Ctrl. word TO
Over current
0
Motor th. over
Motor ETR over
Inverter overld.
DC under volt
DC over volt.
Short circuit
0
Mains ph. loss
AMA not OK
Trip Lock
Parameter Reference
–
Parameter 22-04 Check Valve Monitor
–
–
X
X
yellow
flashing red
Parameter 16-91 Alarm Word 2
0
0
Servicetrip, typecode
Sparepart
0
No flow
0
0
Broken belt
0
0
0
External interlock
0
0
0
AU370727746889en-000101 / 130R0994
Troubleshooting
–
–
–
–
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