Epson T3 Series, Safety And Installation

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1. Safety
Safety and Installation (T, VT / EPSON RC+ 7.0) Rev.15 19
1.5 Emergency Stop
1.5.1 Free running distance in emergency
If the Manipulator moves abnormally during operation, immediately press the
Emergency Stop switch. Pressing the Emergency Stop switch immediately
changes the Manipulator to deceleration motion and stops it at the maximum
deceleration speed.
However, avoid pressing the Emergency Stop switch unnecessarily while the
Manipulator is running normally. Pressing the Emergency Stop switch locks the
brake and it may cause wear on the friction plate of the brake, resulting in the short
life of the brake.
Normal brake life cycle: 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.
Refer to the Manipulator manual for instructions on how to wire the Emergency
Stop switch circuit.
Do not turn OFF the Manipulator 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.
If the Manipulator is stopped by turning OFF while it is operating, following
problems may occur.
Reduction of the life and damage of the reduction gear unit
Position gap at the joints
In addition, if the Manipulator 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.
Whether or not the reduction gear is damaged
Whether or not the joints are in their proper positions
If there is a position gap, perform calibration by referring to the
Maintenance:
Calibration
in the Manipulator manual. Also, the same troubles may occur if an
error occurs and the Manipulator stops in emergency during the operation. Check
the Manipulator condition and perform calibration if necessary.