Emerson 400276-01 operation manual External Drive Connections To The 525 PMC, Signal Discriptions

525 Programmable Motion Controller

External Drive Connections To The 525 PMC

The 525 PMC has two keyed, detachable terminal blocks on the bottom of the unit for connecting the external drive and encoder. The terminal blocks are divided into two sections of 13 (1-13 & 14-26). Connections should be made using wire no larger than 18ga. The following is a breakdown of the signals available at the terminal blocks.

Connector Pin#Signal Description

1	Encoder signal input A
2	Encoder signal input A not
3	Encoder signal input B
4	Encoder signal input B not
5	Encoder signal input M
6	Encoder signal input M not
7	Encoder +5VDC Supply
8	Encoder Shield & Command Shield
9	Encoder Ground
10	Command (+)
11	Command (-)
12	Feedback current (+)
13	Feedback current (-)
14	Input 1 (+)
15	Input 1 (-)
16	Input 2 (+)
17	Input 2 (-)
18	Reserved for future use
19	Reserved for future use
20	Shield
21	Drive enable NORMALLY ON (-) EMITTER
22	Drive enable NORMALLY OFF (-) EMITTER
23	Drive enable (+) Common Collector (dirve enable only)
24	Drive reset NORMALLY ON (-) EMITTER
25	Drive reset NORMALLY OFF (-) EMITTER
26	Drive reset (+) Common Collector (drive reset only)

Signal Discriptions

Encoder input signals

The encoder input signals - A, A not, B, B not, M, M not are directly connected to the motor encoder. The signals should have a minimum 2.5 V and a maximum 5.0 VDC peak to peak voltage with a 2.5 VDC reference. Sine wave encoders are recommended due to their inherent noise immunity. Square wave encoders can also be used if care in cable selection is taken.

Encoder +5VDC supply

+5VDC and ground is provided to power the encoder. Maximum current output is 150 ma. If the encoder to be used exceeds this limit an external power supply will have to be provided and grounded to the encoder ground on the terminal block.

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