8
Grounding Caution
10
Replacing the Backlight
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.
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
• When grounding to the GP's rear face FG terminal, (on the Power Input
Terminal Block), be sure to create an exclusive ground.
*1
• Inside the GP2500/GP2600 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 expan-
sion unit's Installation Guide.
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 them 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.
7
Power Supply Cautions
*
1
Use a grounding resistance of 100
Ω
, a wire of 2mm
2
or
thicker, 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/).
GP Unit
Rev.
Backlight Model
GP2500-TC11
-
GP577RT-BL00-MS
Rev.4 is marked
CA3-BLU12-01
The others
PS600-BU00
GP2600-TC11
*2
