Troubleshooting - Danfoss VLT AutomationDrive FC 302 Instruction Manual

Maintenance, Diagnostics an...
WARNING 163, ATEX ETR cur.lim.warning
The adjustable frequency drive has run above the charac-
teristic curve for more than 50 s. The warning is activated
at 83% and deactivated at 65% of the permitted thermal
overload.
ALARM 164, ATEX ETR cur.lim.alarm
Operating above the characteristic curve for more than
60 s within a period of 600 s activates the alarm, and the
adjustable frequency drive trips.
WARNING 165, ATEX ETR freq.lim.warning
The adjustable frequency drive is running more than 50 s
below the permitted minimum frequency
(parameter 1-98 ATEX ETR interpol. points freq.).
ALARM 166, ATEX ETR freq.lim.alarm
The adjustable frequency drive has operated for more than
60 s (in a period of 600 s) below the permitted minimum
frequency (parameter 1-98 ATEX ETR interpol. points freq.).
ALARM 244, Heatsink temperature
This alarm is only for enclosure type F adjustable
frequency drives. It is equivalent to Alarm 29. The report
value in the alarm log indicates which power module
generated the alarm:
1 = Left most inverter module.
2 = Middle inverter module in enclosure size F12
or F13.
2 = Right inverter module in enclosure size F10 or
F11.

7.6 Troubleshooting

Symptom Possible cause
Missing input power.
Missing or open fuses, or circuit
breaker tripped.
No power to the LCP.
Shortcut on control voltage
(terminal 12 or 50) or at control
terminals.
Display
Incompatible LCP (LCP from
dark/No
®
function VLT 2800 or 5000/6000/8000/
FCD or FCM).
Wrong contrast setting.
Display (LCP) is defective.
Internal voltage supply fault or
SMPS is defective.
MG34U422
Instruction Manual
WARNING 251, New typecode
The power card or other components have been replaced
and the type code has been changed.
Troubleshooting
•
WARNING 250, New spare part
A component in the adjustable frequency drive has been
replaced.
Troubleshooting
•
Test
See Table 4.3.
See open power fuses and tripped circuit
breaker in this table for possible causes.
Check the LCP cable for proper connection or
damage.
Check the 24 V control voltage supply for
terminal 12/13 to 20–39 or 10 V supply for
terminal 50 to 55.
Test using a different LCP.
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2 = Second adjustable frequency drive from the
left inverter module in enclosure size F14 or F15.
3 = Rght inverter module in enclosure sizes F12
or F13.
3 = Third from the left inverter module in
enclosure size F14 or F15.
4 = Far right inverter module in enclosure sizes
F14 or F15.
5 = Rectifier module.
6 = Right rectifier module in enclosure sizes F14
or F15.
Reset to remove the warning and resume normal
operation.
Reset the adjustable frequency drive for normal
operation.
Solution
Check the input power source.
Follow the recommendations provided.
Replace the faulty LCP or connection
cable.
Wire the terminals properly.
Use only LCP 101 (P/N 130B1124) or LCP
102 (P/N. 130B1107).
▲
Press [Status] + [ ]/[
contrast.
Replace the faulty LCP or connection
cable.
Contact supplier.
7
▼
] to adjust the
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