15 - 67
MELSEC-Q
15 TROUBLESHOOTING
Related buffer memory
address
Axis 1 Axis 2 Axis 3 Axis 4
Check point Corrective action
— — — —
Reconsider the power supply voltage.
— — — —
Alarm (A.10) occurs if power is
switched on after disconnection of
the CN1A, CN1B, CNP2 and CNP3
connector.
Change the servo amplifier.
— — — —
Alarm (any of A.12 to 15) occurs if
power is switched on after
disconnection of CN1A, CN1B, CNP2
and CNP3 connector.
Change the servo amplifier.
Connect correctly.
Change the servo amplifier.
— — — —
Repair or change the cable.
— — — —
Alarm (A.17) occurs if power is
switched on after disconnection of
the CN1A, CN1B, CNP2 and CNP3
connector.
Change the servomotor.
Connect correctly.
Change the servomotor.
— — — —
Repair or change the cable.
Connect correctly.
— — — —
Alarm (2024) occurs if power is
switched on after disconnection of
the CNP2 connector.
Change the cable.
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