Gateway 312785C important safety instructions General Troubleshooting

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	CAUSE	SOLUTION
Unit screen is blank and PWR LED is	No power applied to the unit.	Check power supply. Units require 24
off.		VDC, ± 10%.
Unit screen is blank and PWR LED is	Contrast too low (Graco Gateway	Program one of the soft keys with the
on.	only).	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.,	Remove one of the references or use
	Var1 uses Var2 as maximum which in	formula tags for indirect reference,
	turn uses Var1 as minimum.	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	Check if the operation launches pro-
	endless loop.	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.

32 312785C