Galil DMC-3425 Appendices, Electrical Specifications, Performance Specifications, Servo Control

Appendices

Electrical Specifications

Servo Control

ACMD Amplifier Command:	+/-10 Volts analog signal. Resolution 16-bit DAC or .0003
	Volts. 3 mA maximum
A+,A-,B+,B-,IDX+,IDX- Encoder	TTL compatible, but can accept up to +/-12 Volts.
	Quadrature phase on CHA,CHB. Can accept single-ended
	(A+,B+ only) or differential (A+,A-,B+,B-). Maximum A,B
	edge rate: 12MHz. Minimum IDX pulse width: 80 nsec.

Input/Output

Uncommitted Inputs, Limits, Home,	TTL Can accept up to +12V signal.
Abort Inputs:
OUT[1] thru OUT[3] Outputs:	TTL.

Power Requirements

+5V	400 mA
+12V	40 mA
-12V	40mA

Performance Specifications

Minimum Servo Loop Update Time:
DMC-3415	250 μsec / 125usec with fast firmware
	(fast firmware only works on SLAVE controller)
DMC-3425	375 μsec / 250 usec with fast firmware
	(fast firmware only works on SLAVE controller)
Position Accuracy:	+/-1 quadrature count
Velocity Accuracy:

DMC-3425 Appendices• 171