Galil DMC-13X8 user manual Communication

Unable to read main or	The encoder does not work	1.	Wrong encoder
auxiliary encoder input.	when swapped with	connections.
	another encoder input.
		2.	Encoder is damaged
		3.	Encoder
		configuration incorrect.
Unable to read main or	The encoder works	1.	Wrong encoder
auxiliary encoder input.	correctly when swapped	connections.
	with another encoder input.
		2.	Encoder
		configuration incorrect.
		3.	Encoder input or
		controller is damaged
Encoder Position Drifts	Swapping cables fixes the	1.	Poor Connections /
	problem	intermittent cable
Encoder Position Drifts	Significant noise can be	1.	Noise
	seen on CHA and / or CHB
	encoder signals

Check encoder wiring. For single ended encoders (CHA and CHB only) do not make any connections to the CHA- and CHB- inputs.

Replace encoder

Check CE command

Check encoder wiring. For single ended encoders (CHA and CHB only) do not make any connections to the CHA- and CHB- inputs.

Check CE command

Contact Galil

Review all terminal connections and connector contacts.

Shield encoder cables

Avoid placing power cables near encoder cables

Avoid Ground Loops Use differential encoders Use +/-12V encoders

Communication

SYMPTOM	DIAGNOSIS		CAUSE
Cannot communicate with	Galil software returns error	1.	Address conflict
controller.	message when
	communication is	2.	IRQ address
	attempted.
		3.	Address selection
			does not agree with
			registry
			information.

REMEDY

Change address jumper positions, and change if necessary (Chap 4)

Select different IRQ

From Galil software, edit Galil Registry

Chapter 9 Troubleshooting • 154 USER MANUAL