Power-On Sequence - Mitsubishi Electric MR-JE-*C Instruction Manual

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE
(b) Output device
Refer to section 2.3 (1) (b).
(2) Input signal
Refer to section 2.3 (2).
(3) Output signal
Refer to section 2.3 (3).

12.2.4 Power-on sequence

(1) Power-on procedure
1) Always wire the power supply as shown in above section 3.1 of "MR-JE-_C Servo Amplifier
Instruction Manual" using the magnetic contactor with the power supply (L1/L2/L3). Configure up
an external sequence to switch off the magnetic contactor as soon as an alarm occurs.
2) The servo amplifier receives the SON (Servo-on) in 4 s to 5 s after the power supply is switched
on. Therefore, when SON (Servo-on) is switched on simultaneously with the power supply, the
base circuit will switch on in about 4 s to 5 s, and the RD (Ready) will switch on in further about 5
ms, making the servo amplifier ready to operate. (Refer to (2) in this section.)
3) When RES (Reset) is switched on, the base circuit is shut off and the servo motor shaft coasts.
(2) Timing chart
Power supply
Base circuit
SON (Servo-on)
RES (Reset)
RD (Ready)
No alarming (ON)
ALM (Malfunction)
POINT
The output signal, etc. may be unstable at power-on.
SON (Servo-on) accepted
(4 s to 5 s)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
5 ms
ON
OFF
Alarming (OFF)
10 ms
95 ms
10 ms 5 ms
4 s to 5 s
12 - 15
10 ms 95 ms
10 ms 5 ms 10 ms