Grounding Work; Emergency Stop Wiring Connection - Denso RC8 User Manual

CAUTION
• Take care not to connect the power supply incorrectly. Incorrect connection may
result in a serious incident such as fire. There is no power switch on the electric
gripper control board, and therefore a suitable shut-off device (insulated) capable of
cutting the power to the entire unit must be installed. Use a power supply with
reinforced insulation at both the primary and secondary sides.
• Always turn OFF the power to the entire unit before wiring the electric gripper control
board. Failure to do so may result in electric shock.

4.1.8. Grounding Work

DANGER
The motor current is controlled by PWM. Incorrect ground connection may cause transistor
switching noise. Furthermore, electronic circuits for the CPU and so on are built into the
electric gripper control board, and therefore it is necessary to perform wiring and take
suitable measures to thoroughly prevent the intrusion of external noise. Wire and ground the
control board properly to prevent such trouble.

4.1.9. Emergency Stop wiring Connection

Disconnect the emergency stop connectors from the electric gripper control board, and
connect the emergency stop wiring.
■ Emergency stop connectors
No. Symbol
1 EMG1
2 EMG2
Applicable wiring: Use AWG 28 to 16.
Short circuit terminals 1 to 2 to deactivate the emergency stop.
Refer to "Connecting the Power Supply" for details on how to connect the power supply to
the connector.
Function
Emergency stop contact input 1
Emergency stop contact input 2
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