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Troubleshooting
32 312785C
Troubleshooting
NOTE: This section covers the most common problems
encountered while setting up, programming or using the
product. Do not forget to always download in the device
after changing settings in Graco Gateway.
General Troubleshooting
PROBLEM CAUSE SOLUTION
Unit screen is blank and PWR LED is
off.
No power applied to the unit. Check power supply. Units require 24
VDC, ± 10%.
Unit screen is blank and PWR LED is
on.
Contrast too low (Graco Gateway
only).
Program one of the soft keys with the
action as User Defined and the fol-
lowing code in the field On Pressed:
dispcontrast++
No primitives on the display. Add objects to the User Interface in
Graco Gateway.
Backlight is off. Push one of the soft keys to turn it
back on.
Backlight tube is broken. Replace the backlight tube.
Unit continually cycles on and off. Cross-references between tags, e.g.,
Var1 uses Var2 as maximum which in
turn uses Var1 as minimum.
Remove one of the references or use
formula tags for indirect reference,
e.g., Form1 is equal to Var1 and used
in Var2 minimum instead of Var1.
Database is corrupted. Create a new database or send to
technical support for debugging.
Unit cycles power after an operation. Most likely a program going in an
endless loop.
Check if the operation launches pro-
gram containing loops with no exit
point.
CF LED flashing slowly. CF card corrupted or invalid. Format the card from Graco Gateway
using the Link > Format Flash menu.