Technical data’s and circuit diagrams for the modular system
PCD0
26/766 E2
(HB_PCD0 26 766_E2.DOC)
SAIA-Burgess Controls Ltd.
Page 103
4.19.7
Operation / operating modes
Powering up
When you power the module up all settings in the module are reset,
i.e.
-
Counter values, pre-shutdown values, shutdown values are 0000
0000 h
-
Override data is 0000 h
-
Configuration data is 0000 h
After the module is powered up the following settings are active:
-
No data loaded in module.
-
No inputs/outputs are overwritten.
-
Select outputs: Move+, Move-, Speed
-
Direction outputs not inverted
-
Speed output not inverted, i.e. speed = 0: slow, speed = 1: fast
-
Counting direction not inverted
-
Counter counts according to tracking signals A and B
-
Operating mode off
-
Homing direction, decrementing to limit switch End-
-
Homing speed: slow
OFF
Move+ and Move- or Move outputs are off.
Enable outputs after turning them off due to a limit switch.
Positioning 1
st
variation
1. Fast up to pre-shutdown value
2. Slowly up to shutdown value
3. Move+ and Move- or Move outputs off
A message is sent to the PLC indicating successful completion of
positioning.
When you switch to another operating mode this message is deleted.
The direction is determined by comparing the thresholds with the
current counter value.
Positioning with pre-shutdown value behind the shutdown value is
possible. In this case the direction is inverted when the pre-shutdown
value is reached.
If End+=0 or End-=0 the Move+ and Move- or Move outputs are
switched off. Select operating mode Off once to re-activate the
outputs.
Positioning 2
nd
variation measurement of distance after zero pulse
1. Fast in defined direction (bit direction for homing) up to zero point
(input tracking signal N)
2. Reset counter and move fast up to pre-shutdown value
3. Slowly up to shutdown value
4. Shut down outputs for movement
A message is sent to the PLC indicating successful completion of
positioning.
When you switch to another operating mode this message is deleted.
If End+=0 or End-=0 the Move+ and Move- or Move outputs are
switched off. Select operating mode Off once to re-activate the
outputs.
