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5 Maintenance and Inspection
5.7 How to release the brake in an emergency
The following describes how to release the brake using the emergency power supply in an emergency.
Using an emergency power supply system separated from the primary power supply of the robot prevents the
robot from moving accidentally during the brake release operation, which contributes to enhancing customer
safety.
An emergency here means an emergency stop of robot operation, which requires the brake release operation to
set the robot in an evacuation posture temporarily.
[Note] Do not connect an emergency power supply to multiple robots and release their brakes at the same time.
1) Connect the teaching pendant to the robot controller.
2) Connect the 24V DC power supply to EXT1 of the controller as shown in the figure below.
To prevent accidental power supply from the primary power supply of the robot, prepare an emergency
power supply system separated from the primary power supply of the robot to supply AC power to the 24V
DC power supply.
[Note] For using the CR800-R/Q controller, it is necessary to turn on the primary power supply of the
robot CPU system (PLC). But, do not turn on the primary power supply of the CR800-R/Q
controller.
㼀㼛㻌㼑㼙㼑㼞㼓㼑㼚㼏㼥㻌
㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥㻌
㼟㼥㼟㼠㼑㼙
㻱㼄㼀㻝
㻭
㻯㻾㻤㻜㻜㻌㼏㼛㼚㼠㼞㼛㼘㼘㼑㼞
㻯㻺㻡㻝㻌㼏㼛㼚㼚㼑㼏㼠㼛㼞
㻱㼄㼀㻝㻌㼏㼛㼚㼚㼑㼏㼠㼛㼞
㻞㻠㼂㻌㻰㻯㻌㼛㼡㼠㼜㼡㼠㻌㼏㼍㼎㼘㼑
㻞㻠㼂㻌㻰㻯㻌㼕㼚㼜㼡㼠㻌㼏㼍㼎㼘㼑
㻯㻺㻝㻌㼏㼛㼚㼚㼑㼏㼠㼛㼞
㻞㻠㼂㻌㻰㻯㻌㼜㼛㼣㼑㼞㻌㼟㼛㼡㼞㼏㼑㻌㻔㻼㼞㼑㼜㼍㼞㼑㼐㻌㼎㼥㻌㼏㼡㼟㼠㼛㼙㼑㼞㻚㻕
㻾㼑㼏㼛㼙㼙㼑㼚㼐㼑㼐㻌㼙㼛㼐㼑㼘㻦㻌㼆㼃㻿㻝㻜㻜㻮㻭㻲㻙㻞㻠
㻹㼍㼚㼡㼒㼍㼏㼠㼡㼞㼑㻦㻌㼀㻰㻷㻙㻸㼍㼙㼎㼐㼍
㼇㻺㼛㼠㼑㼉㻌㼃㼔㼑㼚㻌㼠㼔㼑㻌㼞㼑㼏㼛㼙㼙㼑㼚㼐㼑㼐㻌㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥㻌㼕㼟㻌㼚㼛㼠㻌㼡㼟㼑㼐㻘㻌㼕㼠㻌㼕㼟㻌
㼚㼑㼏㼑㼟㼟㼍㼞㼥㻌㼠㼛㻌㼟㼑㼘㼑㼏㼠㻌㼍㻌㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥㻌㼣㼔㼛㼟㼑㻌㼛㼡㼠㼜㼡㼠㻌㼕㼟㻌
㻡㻜㼃㻌㼛㼞㻌㼙㼛㼞㼑㻚
㻝㻮
㻝㻭
EXT1 connector
Connector: J21DF-16V-KX
Contact: SJ2F-01GF-P1.0
Manufacture: JST
Pin assignment
Pin number
Signal name
8A
24V
8B
3B
7A
GND
7B
3A
CN51 connector (recommended)
Connector: VHR-8N
Contact: SVH-41T-P1.1
Manufacture: JST
Pin assignment
Pin number
Signal name
1
GND
2
3
4
5
24V
6
7
8
CN1 connector (recommended)
Connector: VHR-5N
Contact: SVH-41T-P1.1
Manufacture: JST
Pin assignment
Pin number
Signal name
1
L
3
N
5
FG
The following shows the connector specifications.