-28-
• When attaching a wire to the GLC's rear face FG terminal, (on the Power
Input Terminal Block), be sure to create an exclusive ground.
• Inside the GLC2500-TC41-24V/GLC2600-TC41-24V units, the SG(Signal
Ground) and FG(Frame Ground) terminals are connected to each other.
• When connecting an external device to the GLC with the SG terminal, ensure
that no short-circuit loop is created when you setup the system.
• When attaching an expansion unit to the GLC, be sure to read the expansion
unit's Installation Guide.
Please pay special attention to the following instructions when connecting the
power cord terminals to the GLC unit.
•
If the power supply voltage exceeds the GLC'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 trans-
former.
•
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 GLC unit.
•
The GLC'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.
•
All GLC 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.
9
Input/Output Signal Line Cautions
8
Grounding Cautions
7
Power Supply Cautions
The GLC unit's backlight is user replacable.
Do not use of a different model backlight, since it may cause a
GLC malfunction or breakdown.
For an explanation of how to replace the GLC's backlight, please refer to the User
Manual or the Installation Guide which comes with the replacement backlights
(sold separately).
Corresponding Replacement Backlights
10
Replacing the Backlight
*1 For GLC2600 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/).
GLC Unit
Rev.
Required Backlight Model
GLC2500-TC41-24V
-
GP577RT-BL00-MS
Rev.3 is marked
CA3-BLU12-01
The others
PS600-BU00
GLC2600-TC41-24V
*1
