Filter
Top Products
13 - 43
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
2) Drive unit
When an alarm occurs in the drive unit, the drive unit turns into the servo off but the main circuit
power supply is not shut off. Therefore, shut off the main circuit power supply using the external
sequence. Operation can be resumed by turning the reset (RES) ON after the alarm is deactivated in
the drive unit.
OFFONOFF
1.5s
50ms or more
OFF
(3s) (3s)
Alarm occurrence
Converter unit control
power supply
Drive unit control
power supply
Main circuit
power supply
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Servo-on command
(from controller)
Drive unit alarm
Reset command
(from controller)
Base circuit
Converter unit alarm
a) b)
a) in Figure
b) in Figure
When an alarm occurs on the drive unit, shut off the main circuit power supply by
the external sequence.
Turn ON the main circuit power supply while an alarm of the drive unit is
cancelled.