Festo CMMP-AS-C2-3A, Mounting And Installation Manual, Page: 77 / 110

7. Electrical installation
Festo P.BE-CMMP-AS-3A-HW-EN 0708NH 77
7.9 Connection: Increment encoder input [X10]
7.9.1 Layout on device [X10]
- D-SUB connector, 9-pin, female
7.9.2 Counterplug [X10]
- D-SUB connector, 9-pin, male
7.9.3 Pin assignments [X10]
Pin no. Description Value Specification
1 A/CLK 5 V / R
I
120 Incremental encoder signal A /
stepper motor signal CLK
positive polarity as per RS422
6 A# / CLK# 5 V / R
I
120 Incremental encoder signal A /
stepper motor signal CLK
negative polarity as per RS422
2 B/DIR 5 V / R
I
120 Incremental encoder signal B /
stepper motor signal CLK
positive polarity as per RS422
7 B# / DIR#
5 V / R
I
120
Incremental encoder signal B /
stepper motor signal CLK
negative polarity as per RS422
3 N 5 V / R
I
120 Incremental encoder zero pulse N
positive polarity as per RS422
8 N#
5 V / R
I
120
Incremental encoder zero pulse N
negative polarity as per RS422
4 GND - Reference GND for encoder
9 GND - Screen for the connecting cable
5 VCC +5 V 5% 100 mA Auxiliary supply, max. load 100 mA,
but short-circuit protected!
Table 7.7 Pin assignments X10: Incremental encoder input
7.9.4 Type and layout of cable [X10]
We recommend using encoder connection cables where the incremental encoder signal
is transmitted via twisted pairs, with each pair being individually shielded.
7.9.5 Connection notes [X10]
Input [X10] can be used for processing incremental encoder signals and also for pulse
direction signals as generated by stepper motor controller cards.