Manual - TC.P Quadro
L) IBC Inverter
2016-08-05
313/330
V04.52
9
9.1.21.
L) IBC Inverter
Flash
Code
Error
Error message
TopCon (Long)
Description
Possible Cause
Counteraction
21-1
L0
DC-Link voltage too
low
DC link voltage too low
Line input voltage too low
Check mains voltage
21-2
L1
DC-Link voltage too
high
DC link voltage too high
Line input voltage too high
Check mains voltage
21-3
L2
Line frequency high Line frequency of any phase too high Line input frequency too high
Check mains voltage
21-4
L3
Line frequency low Line frequency of any phase too low Line input not properly connected
Check mains voltage
21-5
L4
Line voltage high
Line voltage of any phase too high
Line input voltage too high
Check mains voltage
21-6
L5
Line voltage low
Line voltage of any phase too low
Line input not properly connected
Check mains voltage
21-7
L6
PLL
Internal problem
Internal problem
Contact customer support
21-8
L7
Switch to line
timeout/failed
Required DC bus voltage is not
reached
Contact customer support
21-9
L8
Cos Phi too low
Reactive current too high
Contact customer support
21-10 L9
IGBT
Overcurrent in phase L1, L2 or L3
(short circuit protection)
21-11 LA
Overtemperature
Inverter heatsink temperature too
high
Supply and exhaust air flow of
cooling air is restricted or the am-
bient temperature is too high.
21-12 LB
Overcurrent
Overcurrent in phase L1, L2 or L3
Overcurrent in string L1, L2 or L3
Contact customer support
21-13 LC
Self check
Internal problem
Internal problem
Contact customer support
21-14 LD
Phase sequence
No rotating field detected
Line input not properly connected
Check mains voltage
21-15 LE
Inverter
Sequence errors of errors L9, LB
and LF
Sequence errors of errors L9, LB
and LF
In case of no error L9, LB and LF exist, contact
customer support
21-16 LF
Interlock
See error F2