Optical Decoupling Of The Pulse Acquisition Channels; Pin Assignment X1, Channel 1; Pin Assignment X1, Channel 2; Pin Assignment X1, Channel 3 - Addi-Data APCI-8001 Commissioning Manual

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5.2.6.5 Optical decoupling of the pulse acquisition channels

All pulse acquisition channels of the APCI-8001 / APCI-8008 are optically decoupled. This is advantageous
particularly in an environment that is subject to severe electromagnetic interference.
5.2.6.6 Pin assignment for the pulse acquisition channels with incremental encoders

5.2.6.6.1 Pin assignment X1, channel 1

Pin Name Function
3 CHA1+ Incremental signal (TTL square-wave pulse trains) track A
4 CHA1- Inverted incremental signal track A
5 CHB1+ Incremental signal track B with 90° electrical phase shift to track A
6 CHB1- Inverted incremental signal track B
7 NDX1+ Reference signal track 0
8 NDX1- Inverted reference signal track 0

5.2.6.6.2 Pin assignment X1, channel 2

Pin Name Function
20 CHA2+ Incremental signal (TTL square-wave pulse trains) track A
21 CHA2- Inverted incremental signal track A
22 CHB2+ Incremental signal track B with 90° electrical phase shift to track A
23 CHB2- Inverted incremental signal track B
24 NDX2+ Reference signal track 0
25 NDX2- Inverted reference signal track 0

5.2.6.6.3 Pin assignment X1, channel 3

Pin Name Function
36 CHA3+ Incremental signal (TTL square-wave pulse trains) track A
37 CHA3- Inverted incremental signal track A
38 CHB3+ Incremental signal track B with 90° electrical phase shift to track A
39 CHB3- Inverted incremental signal track B
40 NDX3+ Reference signal track 0
41 NDX3- Inverted reference signal track 0
CM / C M
OMMISSIONING ANUAL