Mitsubishi HD-5000A Instruction Manual download pdf (Page 75)

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3. SIGNALS AND WIRING

3.7.3 Power-on sequence

(1) Power-on procedure

1) Always wire the power supply as shown in above section 3.7.1 using the magnetic contactor with

the main circuit power supply (three-phase 200V: L

1, L2, L3, single-phase 230V single-phase

100V: L

1, L2). Configure up an external sequence to switch off the magnetic contactor as soon as

an alarm occurs.

2) Switch on the control circuit power supply L

11, L21 simultaneously with the main circuit power

supply or before switching on the main circuit power supply. If the main circuit power supply is

not on, the display shows the corresponding warning. However, by switching on the main circuit

power supply, the warning disappears and the servo amplifier will operate properly.

3) The servo amplifier can accept the servo-on (SON) about 1 to 2s after the main circuit power

supply is switched on. Therefore, when servo-on (SON) is switched on simultaneously with the

main circuit power supply, the base circuit will switch on in about 1 to 2s, and the ready (RD)

will switch on in further about 20ms, making the servo amplifier ready to operate. (Refer to

paragraph (2) in this section.)

4) When the reset (RES) is switched on, the base circuit is shut off and the servo motor shaft

coasts.

(2) Timing chart

20ms 20ms 20ms10ms 10ms

10ms10ms

10ms

60ms

SON accepted

(1 to 2s)

OFF

Power supply

Base circuit

Servo-on

(SON)

Reset

(RES)

Ready

(RD)

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Mitsubishi HD-5000A Instruction Manual Page 75