6. Electrical installation
112 Festo.P.BE-CMMS-ST-G2-HW-EN 1008NH
6.4.8 Increment generator interface / control signals [X10]
The interface is bidirectional. It allows A/B tracking signals to be output in the “master
axis” mode, or alternatively processing of A/B, CLK/DIR or CW/CCW control signals in the
“slave axis” mode.
Pin Name Value Specification
1 A/CLK/CW 5 V, Ri = 120 Ohm Increment generator signal A
Pulse CLK
Clockwise cycles CW
Positive polarity as per RS422
2 B/DIR/CCW 5 V, Ri = 120 Ohm Increment generator signal B
Direction DIR
Anticlockwise cycles CCW
Positive polarity as per RS422
3 N 5 V, Ri = 120 Ohm Increment generator zero pulse N
Positive polarity acc. to RS422
4 GND - Reference GND for the encoder
5 VCC +5 V +-5%, 100 mA Auxiliary supply, max. load 100 mA, short-circuit
proof
6 A-/CLK 5 V, Ri = 120 Ohm Increment generator signal A
Pulse CLK
Clockwise cycles CW
Negative polarity as per RS422
7 B-/DIR 5 V, Ri = 120 Ohm Increment generator signal B
Direction DIR
Anticlockwise cycles CCW
Negative polarity as per RS422
8 N- 5 V, Ri = 120 Ohm Increment generator zero pulse N
Negative polarity acc. to RS422
9 GND - Screen for the connecting cable
Table 6.14 Pin allocation: Increment generator output / pulse, direction input [X10]
6.4.9 SD card
The optional SD card is intended for downloading firmware or saving parameters. The
interface is allocated in accordance with the SD card specifications. Alternatively, an
MMC card can be used.
Type on device
1x12-pin SD card slot
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