Galil DMC-2X00 Electrical Specifications, Servo Control, Stepper Control, Input / Output

Appendices

Electrical Specifications

Servo Control

ACMD Amplifier Command:	+/-10 volt analog signal. Resolution 16-bit DAC or
	0.0003 volts. 3 mA maximum
A+,A-,B+,B-,IDX+,IDX- Encoder and	TTL compatible, but can accept up to +/-12 volts.
Auxiliary	Quadrature phase on CHA, CHB. Can accept single-
	ended (A+,B+ only) or differential (A+,A-,B+,B-).
	Maximum A, B edge rate: 12 MHz. Minimum IDX pulse
	width: 80 nsec.

Stepper Control

Pulse	TTL (0-5 volts) level at 50% duty cycle. 3,000,000
	pulses/sec maximum frequency
Direction	TTL (0-5 volts)

Input / Output

Limit Switch Inputs, Home Inputs.

IN[1] thru IN[8] Uncommitted Inputs and Abort Input

IN[9] thru IN[16] Uncommitted Inputs (DMC-2x50 through DMC-2x80 only)

2.2K ohm in series with opto-isolator. Active high or low requires at least 1mA to activate. Once activated, the input requires the current to go below 0.5ma. All Limit Switch and Home inputs use one common voltage (LSCOM) which can accept up to 24 volts. Voltages above 24 volts require an additional resistor.

≥1 mA = ON; ≤ 0.5 mA = OFF

AN[1] thru AN[8] Analog Inputs:	Standard configuration is +/-10 volts. 12-Bit Analog-to-
	Digital converter. 16-bit optional.
OUT[1] thru OUT[8] Outputs:	TTL
OUT[9] thru OUT[16] Outputs:	TTL
(DMC-2x50 through DMC-2x80 only)
IN[81], IN[82]	Auxiliary Encoder Inputs for A (X) axis. Line Receiver
	Inputs - accepts differential or single ended voltages with
	voltage range of +/- 12 volts.

146 • Appendices DMC-2X00