Epson RT3B-401SS Safety Manual page 22

Safety Precautions
■ Be sure to use a power plug or disconnecting device for the power
cable. Do not connect it directly to the factory power supply.
■ Do not open the cover(s) of the Controller or the Manipulator except
while maintaining it. Opening the cover(s) of the Controller is extremely
hazardous and may result in electric shock even when its main power
is OFF because of the inside high voltage charge unit.
■ Make sure that the power to the robot system is turned OFF before
connecting or disconnecting any cables. Connecting or disconnecting
any cables with the power ON is extremely hazardous and may result
in electric shock and/or malfunction of the Controller.
■ Be sure to connect the cables with securely protected the high voltage
unit to the Controller properly. Do not allow unnecessary strain on the
cables. (Do not put heavy objects on the cables. Do not bend or pull the
cables forcibly.) The unnecessary strain on the cables may result in
damage to the cables, disconnection, and/or contact failure. Damaged
cables, disconnection, or a contact failure is extremely hazardous and
may result in electric shock and/or improper function of the system.
■ When connecting the plug to fit the outlet in your factory, make sure
that it is done by qualified personnel. When connecting the plug, be
sure to connect the earth wire of the AC power cable colored
green/yellow on the Controller to the earth terminal of the factory power
WARNING
supply. The equipment must always be grounded properly to avoid the
risk of electric shock.
■ Use an earth leakage breaker on the AC power cable of the Controller
and T/VT series to avoid the electric shock and circuit breakdown.
■ The installation of options should be performed by personnel who has
taken robot system training held by us and suppliers. Before installing,
always make sure that the main power of the robot system is turned
OFF and that the power plug is disconnected. Performing any
installation procedure while the main power is ON or the high voltage
charged area is not discharged completely is extremely hazardous and
may result in electric shock and/or cause serious safety problems.
■ When opening the front side of the Controller, make sure to disconnect
the power plug. Touching the power supply terminal block inside the
Controller while the power supply is ON is extremely hazardous and
may result in electric shock and/or cause serious safety problems.
■ Grounding the Manipulator is done by connecting with the Controller
(for T/VT series, connected with power cable). Be sure to install the
controller and connect the cables. If the ground wire is improperly
connected to ground, it may result in the fire or electric shock.
8 Safety Manual Rev.4