Power Supply Cautions; Input/Output Signal Line Cautions; Replacing The Backlight - Pro-face GP2500-TC41-24V Installation Manual

7

Power Supply Cautions

Please pay special attention to the following instructions when connecting the power
cord terminals to the GP 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.
• Input and Output signal lines must be separated from the power control cables
for operational circuits.
• To increase the noise resistance, be sure to twist the ends of the power cord
wires before connecting it to the GP unit.
• The GP's 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.
8 Grounding Caution
• When grounding to the GP's rear face FG terminal, (on the Power Input
Terminal Block), be sure to create an exclusive ground.
• Inside the GP unit, the SG(Signal Ground) and FG(Frame Ground) terminals
are connected to each other.
• When connecting an external device to the GP with the SG terminal, ensure
that no short-circuit loop is created when you setup the system.
• When attaching an expansion unit to the GP, be sure to read the expansion
unit's Installation Guide.
9

Input/Output Signal Line Cautions

• All GP Input and Output signal lines must be separated from all operating circuit
(power) cables.
• If this is not possible, use a shielded cable and ground the shield.
10

Replacing the Backlight

The GP unit's backlight is user replacable.
Use of a different model backlight may cause a GP malfunc-
tion or breakdown.
For an explanation of how to replace the GP's backlight, please refer to the User
Manual or the Installation Guide which comes with the replacement backlights (sold
separately).
Corresponding Replacement Backlights
GP Unit
GP2500-TC41-24V
GP2600-TC41-24V
*1 Use a grounding resistance of 100 Ω , a wire of 2mm
or your country's applicable standard.
*2 For GP-2600 Series, the backlight differs depending on a Rev.
For the correct backlight and how to distinguish Rev., refer to
the User Manual carried in the Pro-face Web Site
(http://www.pro-face.com/).
Rev.
-
Rev.3 is marked
*2
The others
*1
Backlight Model
GP577RT-BL00-MS
CA3-BLU12-01
PS600-BU00
2
or thicker,