mplifier
error
Not
Possible
Built-in CPU of amplifier is malfunctioning
Alarm code 0,1 indicates: when Func2/ bit7,6 =”0,0”, “0”= output open and “1”= output short.
Operating state when alarm occurred
POSSIBLE CAUSES
OPERATING STATE
1 2 3 4
When control power supply is turned on
△ ○
○
During operation
△ ○ ○
Corrective Measures
CAUSE CORRECTIVE MEASURES
1 Faulty amplifier control circuit Replace servo amplifier
2 Weak internal 5V power due to short-circuit of
input/output wiring of signal line of amplifier
Disconnect all connectors and turn power supply on
→ If 7 segment LED blinks, check and repair
short-circuit on signal line.
3 Faulty operation due to noise • Check if earth cable of amplifier is correctly
grounded.
• Add ferrite core as noise measure.
4 In maintenance mode. • Maintenance mode SW on the front of Amplifier
(see Chapter 3 front view of Servo Amplifier) is at
maintenance mode.
→ Shut down the control power and return the SW
to normal mode.
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