Troubleshooting; General Troubleshooting - Graco 15V963 Instructions Manual

Troubleshooting

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
Unit screen is blank and PWR LED is
off.
Unit screen is blank and PWR LED is
on.
Unit continually cycles on and off.
Unit cycles power after an operation. Most likely a program going in an
CF LED flashing slowly.
32
CAUSE
No power applied to the unit.
Contrast too low (Graco Gateway
only).
No primitives on the display.
Backlight is off.
Backlight tube is broken.
Cross-references between tags, e.g.,
Var1 uses Var2 as maximum which in
turn uses Var1 as minimum.
Database is corrupted.
endless loop.
CF card corrupted or invalid.
SOLUTION
Check power supply. Units require 24
VDC, ± 10%.
Program one of the soft keys with the
action as User Defined and the fol-
lowing code in the field On Pressed:
dispcontrast++
Add objects to the User Interface in
Graco Gateway.
Push one of the soft keys to turn it
back on.
Replace the backlight tube.
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.
Create a new database or send to
technical support for debugging.
Check if the operation launches pro-
gram containing loops with no exit
point.
Format the card from Graco Gateway
using the Link > Format Flash menu.
312785B