Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual

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MAINTENANCE
Troubleshooting
178
ictn
(101)
InrCOM Time Out
Internal communication time-out
Action and Reset
Action condition When [PLC-23] = (-1) – (-10) (no -9) and the internal communication between Master and Follower is abnormal.
Action time Immediately
Related parameters [PLC-23] and [Comm-02]
Reset method Automatically
Reset condition The warning clears when the communication is back to normal condition
Recorded N/A
Possible Causes Corrective Action
• Malfunction caused by interference
• Different communication conditions
with the upper unit
• Communication cable break off or not
connected well
• Verify wiring/grounding of the communication circuit. It is recommended to separate the
communication circuit from the main circuit, or wire in 90 degree for effective anti-interference
performance.
• Check if the setting for [Comm-02] is the same as the setting for upper unit
• Check the cable status or replace the cable
Warning Display Description
LBLV (128)
Limit by Level
High frequency limit is being limited by Aux AI
Action and Reset
Action condition When Aux AI is less than
Max Limit Level [IO-17]
, max frequency is limited.
The max frequency ramps down linearly when Aux AI is between
Max Limit Level [IO-17]
and
Min Limit Level [IO-18]
, where
Min Freq Limit [IO-19]
corresponds with
Min Limit Level [IO-18]
.
Action time Immediately
Related parameters
[IO-16]
through
[IO-19]
Reset method Automatically
Reset condition Increase Aux AI above
Max Limit Level[IO-17]
Recorded N/A
Possible Causes Corrective Action
• Aux AI signal is changing
• Max Freq changing too quickly with
change of Aux AI
• • Review system monitoring. Set
Limit by Level [IO-16]
to
0_Disable
.
• • Decrease
Min Limit Level [IO-18]
or increase
Min Freq Limit [IO-19]
.
Warning Display Description
MVNC
(131)
M-VFD No Commu
For Multi-drive operation, this VFD can not connect to others.
Action and Reset
Action condition This drive can not detect other drives.
Action time Immediately
Related parameters [ADV-35] , [ADV-36] , and [ADV-37]
Reset method Automatically once parameters are set correctly
Reset condition Immediately; May require power cycle of system once parameters have been adjusted.
Recorded N/A
Possible Causes Corrective Action
• Communication line broken
• Multiple VFDs with the same
Multi-VFD ID [ADV-37]
• Check wiring between drives and replace as needed.
• Check
Multi-VFD ID [ADV-37] on each drive to make sure each drive has a unique value and that it is less
than Multi-VFD Set [ADV-35] .
Warning Display Description