– 77 –
LD301 blinks 2 time.
Peak current-cut.
LD301 blinks 1 times.
Reset stop.
However, the unit always resets and
stops just after power is supplied:
this does not indicate a fault.
(
)
Is the power module normal?
Is the drive circuit normal?
●
Are R503 and peripheral
circuits normal?
●
Is the microcomputer IP input
signal normal?
(Normally, pin
Z
is approx. 5V.)
Is the reset circuit normal?
(Normally, pin
k
is approx. 5V.)
Ye s
Ye s
No
No
No
No
Replace the power module.
Replace any defective parts.
Replace any defective parts.
Replace any defective parts.
Operate the unit again.
Is it normal?
Perform final operation check.
Make sure again that
connectors are connected
securely.
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