3. Product description
Festo.P.BE-CMMS-ST-G2-HW-EN 1008NH
59
Controller
release
START
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Limit switch E0
1
0
DOUT0: READY
DOUT1: MC
DOUT2: ACK
DOUT3: ERROR
Statusword:
referenced
1
Limit switch E1
0
1
0
–
STOP
1
0
t1
t1
t1
tx
tx
tx
tx
Drive is moving
+
t1
= 1.6 ms
tx
= x ms (dependent on ramps)
Fig.
3.6 Signal sequence with interruption through STOP input
3.5.9
Trajectory generator
For a start signal for a positioning record via DIN8, fieldbus or RS232 interface, the
selected positioning record is loaded to the trajectory generator.
Based on the data record loaded, a necessary internal pre-calculation is made. The pre-
calculations can take from 1.6 to 5 ms. The following configurable options are available
for processing the start signal.
-
After a start signal is detected during a current positioning run, the run continues to
the target position.
-
After a start signal is detected, positioning is cancelled and the drive runs at a
constant speed. After pre-calculation is completed, the drive runs to the new target
position.
The trajectory generator sends the following messages:
-
Target reached, (Default: digital output DOUT1 – MC)
-
Remaining distance reached.
-
