Chapter 3 Installing HA-680 driver
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3-10 Power ON and OFF sequences
3-10-1 Power ON / OFF sequence circuit
Configure the sequence circuit to operate the switch for main power individually by an [emergency stop]
signal and the [CN2 alarm: ALARM] signal of the HA-680 driver.
Do not make switching operation (turning ON or OFF) at the state that the servo-ON [CN2-7: Servo-ON:
S-ON] is OFF.
3-10-2 Frequency of power ON / OFF operation
Since the HA-680 driver provides a capacitor for an input filter of a rectifier circuit, large transient current
flows at every operation of main power switch. If the switching operation is too frequent, resisters for
suppressing the transient current may deteriorate.
The switching frequency should not exceed 5 times in an hour and 30 times in a day. Furthermore, the
interval between turning OFF and ON should keep more than 30 seconds.
3-10-3 Power on and off sequences
Program the sequence on the high-level equipment to power on and off the HA-680 driver at the
following timings:
ON
Release
Control power
Alarm
Command
OFF
⇒
ON
Output
Input
Minimum 0.1s
Minimum 0.5s
Servo On
Servo On
Input
Minimum 0s
Minimum 0s
Minimum 0.1s
Minimum 0.5s
ON
Main power
OFF
⇒
ON
Minimum 0s
Minimum 0s
Minimum 0s
Minimum 0s
Ready
Output
Содержание HA-680 Series
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