Timing Chart - Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual

13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)

13.3.7 Timing chart

(1) Power circuit timing chart
Power-on procedure
(a) Always wire the power supply as shown in above section 13.3.2 using the magnetic contactor with the
main circuit power supply (3-phase: L
magnetic contactor as soon as an alarm occurs.
(b) Switch on the control circuit power supply L
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 drive unit will operate properly.
1) When control function of magnetic contactor is enabled and the status remains at ready on
The main circuit power is not shut off with servo off.
2) When control function of magnetic contactor is enabled and the status returns to ready off
The magnetic contactor of the converter unit is turned off with servo off, and the main circuit magnetic
contactor is shut off.
1
ON
Drive unit control
power supply
OFF
ON
Converter unit control
power supply
OFF
ON
Main circuit
power supply
OFF
ON
Base circuit
OFF
ON
Servo-on command
(from controller)
OFF
ON
Drive unit control
power supply
OFF
ON
Converter unit control
power supply
OFF
ON
Main circuit
power supply
OFF
ON
Base circuit
OFF
ON
Servo-on command
(from controller)
OFF
, L , L ). Configure up an external sequence to switch off the
2 3
, L simultaneously with the main circuit power supply or
11 21
(3s)
(3s)
13 - 37
10ms 95ms
10ms 95ms