Emergency Stop - Epson LS20-B Series Manual

Setup & Operation 1. Safety

1.4 Emergency Stop

If the Manipulator moves abnormally during operation, immediately press the Emergency
Stop switch. Stops the power supply to the motor, and the arm stops in the shortest distance
with the dynamic brake and mechanical brake.
Do not press the Emergency Stop switch unnecessarily while the Manipulator is operating.
Pressing the switch during the operation makes the brakes work. This will shorten the life
of the brakes due to the worn friction plates.
Normal brake life: About 2 years (when the brakes are used 100 times/day)
To place the system in emergency mode during normal operation, press the Emergency Stop
switch when the Manipulator is not moving.
instructions on how to wire the Emergency Stop switch circuit.
Do not turn OFF the Controller while the Manipulator is operating.
If you attempt to stop the Manipulator in emergency situations such as "Safeguard Open",
make sure to stop the Manipulator using the Emergency Stop switch of the Controller.
If the Manipulator is stopped by turning OFF the Controller while it is operating, following
problems may occur:
In addition, if the Controller was forced to be turned OFF by blackouts and the like while
the Manipulator is operating, make sure to check the following points after power
restoration:
If there is a position gap, perform calibration by referring to the Maintenance 13.
Calibration in this manual.
Before using the Emergency Stop switch, be aware of the followings:
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For details on the Safeguard system, refer to the following manuals.
To check brake problems, refer to the following manuals.
8
Reduction of the life and damage of the reduction gear unit
Position gap at the joints
Whether or not the reduction gear is damaged
Whether or not the joints are in their proper positions
The Emergency Stop (E-STOP) switch should be used to stop the Manipulator only in
case of emergencies.
To stop the Manipulator operating the program except in emergency, use Pause (halt)
or STOP (program stop) commands.
Pause and STOP commands do not turn OFF the motors. Therefore, the brake does
not function.
For the Safeguard system, do not use the circuit for E-STOP.
EPSON RC+ User's Guide
2. Safety - Installation and Design Precautions - Safeguard System
Safety and Installation
2.6 Connection to EMERGENCY Connector
Manipulator Manual Maintenance
2.1.2 Inspection Point - Inspection While the Power is ON
(Manipulator is operating)
Safety and Installation
5.1.1 Manipulator
- Inspection While the Power is ON (Manipulator is operating)
Refer to the Controller manual for
LS20-B Rev.4