4.
Wiring
WARNINGS
To avoid an electric shock, when connecting the TOUCH/PPC power cord
terminals to the power terminal block, confirm that the TOUCH/PPC power
supply is completely turned OFF, via a breaker, or similar unit.
Since there is no power switch on the TOUCH/PPC unit, be sure to attach a
breaker-type switch to its power cord.
To avoid a short caused by loose ring terminals, be sure to use ring
terminals with an insulating sleeve.
When the FG terminal is connected, be sure the wire is grounded.
Not grounding the TOUCH/PPC unit will result in excess noise and
vibration.
Connecting the TOUCH/PPC Power Cord
When connecting the power cord, be sure to follow the procedures given below.
Confirm that the Power Cord is unplugged from the power supply.
Unscrew the screws from the middle three (3) terminals, align the Ring
Terminals and re-attach the screws.
Confirm that the ring terminal wires are connected correctly.
The torque required to tighten these screws is 0.5 to 0.6N
•
m.
5.
Power Supply Caution
Please pay special attention to the following instructions when connecting the
power cord terminals to the TOUCH/PPC unit.
If the power supply voltage exceeds the GP's specified range, connect a
voltage transformer.
Between the line and the ground, be sure to use a low noise power supply. If
there is still an excessive amount of noise, connect a noise reducing
transformer.
The power supply cord should not be bundled with or kept close to main
circuit lines (high voltage, high current), or input/output signal lines.
Connect a surge absorber to handle power surges.
To reduce noise, make the power cord as short as possible.
