PCD0
Technical data’s and circuit diagrams for the modular system
Page 106
ã
SAIA-Burgess Controls Ltd.
(HB_PCD0 26 766_E2.DOC)
26/766 E2
4.19.9
Example
Connecting an incremental position encoder
1. Tracking signal A on X1.0
2. Tracking signal B on X1.1
3. Tracking signal N on X1.2
Connecting a limit switch (active 0 V, open-circuit potential 24 V)
1. Limit switch End+ on X1.3 (reached by incrementing)
2. Limit switch End- on X1.4 (reached by decrementing)
Connecting a drive
1. Move+ on X1.5 (incremental axis movement)
2. Move- on X1.6 (decremental axis movement)
3. Speed on X1.7 (0 V: slow; 24 V: fast)
Powering up
Homing 1
st
variation to limit switch End+
1. Load mode setting
0A00 0000 0000 0000 0400
(PLC->Module, words 1 - 5, hex. format)
2. Axis moves slowly towards End+
(Move+=24 V, Move-=0 V, Speed=0 V)
3. At End+ (End+=0 V) the axis travels back (Move+=0 V, Move-=24
V, Speed=0 V)
4. When the axis leaves the limit switch in decrementing direction
the axis is stopped after the first zero pulse (Move+=0 V, Move-=0
V, Speed=0 V), the counter is reset and the end of the homing
procedure is signaled.
0000 0000 0000 0000 0019
(Module->PLC, words 1 - 5, hex. format)
OFF
1. Load mode setting
0000 0000 0000 0000 0400
(PLC->Module, words 1 - 5, hex. format)
Positioning 1
st
variation
1. Load pre-shutdown value (0000 0800)
0000 0800 0000 0000 0100
(PLC->Module, words 1 - 5, hex format)
2. Load shutdown value (0000 1000)
0000 1000 0000 0000 0200
(PLC->Module, words 1 - 5, hex format)
3. Load mode setting
0100 0000 0000 0000 0400
(PLC->Module, words 1 - 5, hex. format)
4. Fast incremental axis movement
(Move+=24 V, Move-=0 V, Speed=24 V)
5. When the axis reaches the pre-shutdown value it moves slowly
(incremental axis movement)
(Move+=24 V, Move-=0 V, Speed=0 V)
