Robot Controller; Pneumatic Unit - YASKAWA MOTOMAN-EPX1750 Instructions Manual

154771-1CD
6.2

Robot Controller

The robot controller has a built-in microcomputer that controls all motion of the robot by saving
motion signals when teaching and sending these signals to the manipulator. The power unit
that supplies power to the manipulator is also built into the robot controller.
• The power supply of the robot controller is 200/220 VAC. Be sure to turn OFF the primary power
supply of the controller before starting maintenance.
Failure to observe this warning may result in electric shock.
6.3

Pneumatic Unit

The pneumatic unit supplies protective air or gas to the manipulator to prevent explosive gas
from entering the manipulator. Usually, the unit is attached to the side of the robot controller.
The circuit diagram and dimensions are shown in Fig. 6-3 "Pneumatic Unit Air Circuit" and
Fig. 6-4 "Pneumatic Unit External View". Set the air pressure so that the pressure shown on
the pressure gauge of each pressure reducing valve will be within the pressure ranges shown
in Fig. 6-3 "Pneumatic Unit Air Circuit".
The pneumatic unit is used to provide a pressurized explosion-proof barrier for the
manipulator. Because the barrier is only ensured when the air supply is within the
recommended pressure range, a lower air pressure will reduce the barrier's efficiency,
and a higher air pressure will damage the pneumatic unit. Be sure to keep the air
pressure within the specified range.
DANGER
CAUTION
6-3
6 System Configuration
6.2 Robot Controller
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