Troubleshooting; Troubleshooting Error Messages - KEB combivert R6-S Instruction Manual

Troubleshooting and Diagnostics
6.2

Troubleshooting

6.2.1 Troubleshooting Error Messages

Fault Cause
E.Syn
Line frequency calculated incorrectly
Crossed synchronization connections
Bad synchronization cable connection
Bad synchronization cable
Bad synchronization module
Synchronization cable too long
E.net Refer to Sections 4.4.2 ... 4.4.5 to
determine the corresponding wiring of
the regen unit.
Wiring Scheme B:
Line Contactor Open
Noise/EMI
Loss of a line phase
DC Bus voltage reaches 800VDC
Wiring Scheme A
Noise/EMI
Loss of a line phase
Solution
Exchange two line input phases such that the main
line frequency in CP.2 does not read negative. This
can be done by swapping L1.1 and L2.1 at the
commutation choke.
Ensure connection of the synchronization cable from
commutation choke RJ45 connection to X2B on the
R6.
If the commutation choke has multiple RJ45
connection ports, try using a different port (any
should work).
Replace synchronization cable. A standard CAT5
can be used.
Replace commutation choke or harmonic fi lter.
The synchronization cable between R6 and
commutation choke should not exceed 1 meter.
Monitor the DC Bus voltage at CP.9. If the DC bus
sags below the value set in CP.19, the line contactor
will open causing the synchronization module of the
commutation choke to recognize a line phase loss.
The DC Bus level at which the line contactor opens/
closes can be reduced as needed. Refer to CP.19
for additional information.
Refer to Noise/EMI in Section 6.2.2.
Verify three-phase supply.
Determine cause for excessive increase in DC bus
voltage. Refer to Section 6.2.2 E.OP faults on (F5)
Elevator Drive for additional troubleshooting.
Refer to Noise/EMI in Section 6.2.2.
Verify three-phase supply.
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