Direction Signals, Soft Limit, Home Limit

DIRECTION SIGNALS

This output is TTL/CMOS compatible. The source current rating (Voh = 2.7 V) is 12mA. The sink current rating (Vol = 0.5 V) is 9mA. The Direction signal is +5VDC for '+' or clockwise motion, and 0VDC for '-' or counterclockwise motion.

SOFT LIMIT

This input will cause the motor to ramp down to the base speed. This input contains a 2.5K pullup resistor to +5VDC. It should be activated by connecting it to the 0VDC pin, or a logic level that can sink 2.0mA at TTL levels.

HOME LIMIT

This is similar to the Hard Limit. It will cause the motor to stop without ramping down. This input contains a 2.5K pullup resistor to +5VDC. It should be activated by connecting it to the 0VDC pin, or a logic level that can sink 2.0mA at TTL levels. See the Command Dictionary Section for more information.


PIN		DESCRIPTION	PIN	FUNCTION	DESCRIPTION
	FUNCTION

1	+5VDC	5 VOLT DC OUTPUT	20	C:SOFT-	C: - SOFT LIMIT SWITCH
2	OUT6	OUTPUT 6	21	C:HOME+	C: + HOME LIMIT SWITCH
3	OUT7	OUTPUT 7	22	C:HOME-	C: - HOME LIMIT SWITCH
4	OUT8	OUTPUT 8	23	C:HARD+	C: + HARD LIMIT SWITCH
5	OUT9	OUTPUT 9	24	C:HARD-	C: - HARD LIMIT SWITCH
6	OUT10	OUTPUT 10	25	0 VDC	O VOLT DC REFERENCE
7	0VDC	0 VOLT DC	26	D:CLOCK	D: CLOCK
8	IN6	INPUT 6	27	D:DIR	D: DIRECTION
9	IN7	INPUT 7	28	D:EA	D: ENCODER CHANNEL A
10	IN8	INPUT 8	29	D:EB	D: ENCODER CHANNEL B
11	IN9	INPUT 9	30	D:EZ	D: ENCODER CHANNEL Z
12	IN10	INPUT 10	31	D:SOFT+	D: + SOFT LIMIT SWITCH
13	C:CLOCK	C: CLOCK	32	D:SOFT-	D: - SOFT LIMIT SWITCH
14	C:DIR	C: DIRECTION	33	D:HOME+	D: + HOME LIMIT SWITCH
15	C:EA	C: ENCODER CH. A	34	D:HOME-	D: - HOME LIMIT SWITCH
16	C:EB	C: ENCODER CH. B	35	D:HARD+	D: + HARD LIMIT SWITCH
17	C:EZ	C: ENCODER CH. Z	36	D:HARD-	D: - HARD LIMIT SWITCH
18	C:SOFT+	C: + SOFT LIMIT SWITCH	37	0 VDC	0 VOLT DC REFERENCE
19	NC	NO CONNECTION

DB37 PINOUT FOR AXES C & D

HARD LIMIT

When a hard limit switch is encountered, all motion will stop in the given direction. Keep in mind that the motor may overshoot when this is used. The position given by the position register may not reflect where the motor ended up stopping due to the overshoot. If an encoder is used, the encoder will reflect the actual motor position. This input contains a 2.5K pullup resistor to +5VDC. It should be activated by connecting it to the 0VDC pin, or a logic level that can sink 2.0mA at TTL levels.