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11 Troubleshooting
YASKAWA ELECTRIC
TOBP C730600 96C YASKAWA AC Drive Option SI-ES3 Installation Manual
49
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Minor Faults/Alarms
This section explains the causes and possible solutions when a minor fault or alarm occurs.
Remove the cause of the fault referring to the following table.
Code
Name
Causes
Possible Solutions
CALL
Serial Comm
Transmission Error
The communications cable wiring
is incorrect.
Correct any wiring errors.
There is a short circuit or
disconnection in the
communications cable.
• Repair disconnected cables and short
circuits for proper wiring.
• Replace a faulty communications cable
with a normal one.
Programming error occurred on the
controller side.
Check communications at start-up and
correct programming errors.
Communications circuitry is
damaged.
• Perform a self-diagnostics check.
• If the problem continues, replace either
the control board or the entire drive. For
instructions on replacing the control
board, contact Yaskawa or a Yaskawa
representative.
Termination resistor setting for
MEMOBUS/Modbus
communications is incorrect.
Enable the termination resistor in the last
drive in a MEMOBUS/Modbus network
by setting DIP switch S2 to the ON
position.
GEM_EtherCAT_IM_E_conditional.book 49 ページ 2018年10月25日 木曜日 午後7時29分