Display
Relais switches **
Possible cause
Reaction of Controller
Symbol
Operation
Failure
Adjustment
Earth fault
1
1
Short-circuit at motor connection to
earth
The device switches off, restarts after
approx. 60 s.
Final switch-off after three successive at-
tempts (resp. < 60 s).
Check motor connection cable.
Reset by disconnecting the line voltage.
IGBT Temp.
1
1
Temperature of the heat sink too
high
The device switches off and switches
back on when the temperature drops.
Check cooling of the device (IGBT tem-
perature
Diagnostics menu).
IGBT Fault
1
1
Overload shutoff
Short-circuit between the motor
lines
The device switches off, restarts after
approx. 60 s.
Final switch-off after three successive at-
tempts (resp. < 60 s).
Check motor connection cable.
Reset by disconnecting the line voltage.
Sine
fi
lter
1
1
Sine
fi
lter temperature too high
(only in version with integrated sine
fi
lter)
The device switches off and switches
back on when the temperature drops.
Check cooling of the device (sine
fi
lter
Diagnostics menu).
Overload 2
1
1
The device was operated for too
long with too high current (> rated
current).
The device switches off, restart after ap-
prox. 30 s. Final switch-off after 5 suc-
cessive attempts (resp. < 10 min), then
reset necessary.
Check high output current.
DC over voltage
0
1
To high DC-link voltage
Immediate switch-off, the error is dis-
played after 75 s.
When voltage okay again, restart after 15
s.
Check line voltage.
AC over voltage
0
1
Line voltage too high
Error is displayed after 75 s.
When voltage okay again, restart after 15
s.
Check line voltage.
AC undervoltage
0
1
Line voltage too low
Error is displayed after 75 s.
When voltage okay again, restart after 15
s.
Check line voltage.
DC over voltage
0
1
Intermediate circuit voltage too low
Error is displayed after 75 s.
When voltage okay again, restart after 15
s.
Check line voltage.
Peak current
1
1
Current above de
fi
ned limit
The device switches off, restart after ap-
prox. 30 s. Final switch-off after 10 suc-
cessive attempts (resp. < 90 s), then
reset necessary.
Check high output current.
Filterchoke
1
1
Input choke temperature too high
The device switches off and switches
back on when the temperature drops.
Check cooling of the device (
fi
lter choke
temperature
Diagnostics menu).
Elcap. Temp.
1
1
Temperature of the electrolytic ca-
pacitors too high
The device switches off and switches
back on when the temperature drops.
Check cooling of the device (electr. ca-
pacitor temperature
Diagnostics
menu).
External error
0
selectable Alarm from external contact
Device continues working unchanged.
check contacts.
Operating Instructions
Fcontrol
–
model series FKDM25/32AM-C
Protocol
L-BAL-E214-GB 1446 Index 002
Part.-No.
92/99