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3. SIGNALS AND WIRING
3 - 14
3.3.2 Power-on sequence
POINT
The output signal, etc. may be unstable at power-on.
(1) Power-on procedure
(a) Always use a magnetic contactor for the power supply wiring (L1, L2, and L3) as shown in above
section 3.1. Configure the power supply circuit that turns off the magnetic contactor after an alarm
occurs on the controller side.
(b) The servo amplifier receives the servo-on command within 3 s to 4 s after the power supply is
switched on.
(Refer to (2) of this section.)
(2) Timing chart
(3 s to 4 s)
95 ms
10 ms 95 ms
Servo-on command accepted
Base circuit
Servo-on command
(from controller)
Power supply
ON
OFF
ON
OFF
ON
OFF