Danfoss VLT FC 280 Operating Manual page 119

Operating Guide | VLT® Midi Drive FC 280
Table 59: Warnings and Alarms Code List
Number Description
188 STO internal fault
nw run Not while running
Err. A wrong password
was entered
1) These faults may be caused by mains distortions. Installing a Danfoss line filter may rectify this problem.
2) This alarm cannot be reset via parameter 14-20 Reset Mode automatically.
Alarm Words, Warning Words, and Extended Status Words
8.4.2
For diagnosis, read out the alarm words, warning words, and extended status words.
Table 60: Description of Alarm Word, Warning Word, and Extended Status Word
Bit Hex Dec
0 00000001 1
1 00000002 2
2 00000004 4
3 00000008 8
4 00000010 16
5 00000020 32
6 00000040 64
7 00000080 128
Danfoss A/S © 2024.10
(continued)
Warning Alarm
(2)
– X
– –
– –
Alarm Alarm
word word 2
Brake Reserved
check
Pwr. card Gate drive
temp voltage
fault
Earth fault Reserved
Ctrl. card Reserved
temp
Ctrl. word Reserved
TO
Overcur- Reserved
rent
Torque Reserved
limit
Motor Th. Reserved
over
Maintenance, Diagnostics, and Troubleshooting
Trip Cause
lock
– 24 V DC supply is connected to only 1 of the 2 STO terminals
(37 and 38), or a failure in STO channels is detected. Ensure
that both terminals are powered by a 24 V DC supply, and that
the discrepancy between the signals at the 2 terminals is less
than 0.5 s. If the fault still occurs, contact the local supplier.
– Parameters can only be changed when the motor is stopped.
– Occurs when using a wrong password for changing a pass-
word-protected parameter.
Alarm Warning
word 3 word
STO func- Reserved
tion fault
MM alarm Pwr. card
temp
Reserved Reserved
Reserved Ctrl. card
temp
Reserved Ctrl. word
TO
Reserved Overcur-
rent
Reserved Torque
limit
Reserved Motor Th.
over
Warning Extended
word 2 status
word
Reserved Ramping
Reserved AMA tun-
ing
Reserved Start CW/
CCW
Reserved Slowdown
Reserved Catch up
Reserved Feedback
high
Reserved Feedback
low
Reserved Output
current
high
AQ381425076031en-000201 / 130R1223 |
Extended
status
word 2
Off
Hand/
Auto
PROFIBUS
OFF1 ac-
tive
PROFIBUS
OFF2 ac-
tive
PROFIBUS
OFF3 ac-
tive
Reserved
Reserved
Control
ready
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