Instruction Manual PSE2xxDN
24
OR
- Set control word explicitly to 10h (using the PSE object; class 100, instance 1,
attribute 36)
- End manual run by withdrawing release:
- Poll I/O with control word 0h
OR
- Bit strobe with bit 0
OR
- Set control word explicitly to 0h (using the PSE object; class 100, instance 1,
attribute 36)
- Transferring a target value during a manual run will end the run and the device will
immediately move on to the transmitted position.
4 Special features
a) Speed, acceleration and deceleration
The initial reference loop and the manual run are performed at the maximum speed
specified in the PSE object; class 100, instance 1, attribute 19; positioning runs are
performed at the maximum speed specified in attr. 18. When the run is counter-
clockwise, additionally the maximum speed in attr. 32 applies, when the run is
clockwise, the one in attr. 33 applies. For all runs the maximum acceleration of attr.
155 and the maximum deceleration of attr. 156 apply. At the end of each run the
maximum deceleration decreases during the approach to the destination successively
in order to realize a harmonic transient behaviour.
b) Response of drive in case of block or manual displacement
If during a run the achievable rate of speed falls below the threshold parameter (30%
of the selected maximum speed; attr. 26) for longer than 200 ms (attr. 27), the device
detects blocking, aborts the run and sets the "positioning error" bit (here the default
values are given).
New run commands can then be transmitted with no further steps to take. An
exception is, if the run should go to the same target than before. In this case,
deassert the release (bit 4 of the control word) and assert it again, then transfer the
target position one more time (either by Poll I/O or explicit).
If the PSE2xxDN is displaced by external force during standstill opposite to the loop
direction and the release bit (bit 4) as well as the release readjustment bit (bit 10) in
the control word are being set, the device will attempt to reach the previously
transmitted target value once again (readjustment). The device does not attempt to
readjust if rotated in the loop direction; it merely sets the ‘manual rotation’ bit. If bit 6
(„run without loop“) is being set, the drive readjusts the position in both directions.
Deasserting the release and/or the release readjustment bit can completely stop the
readjustment process.
c) Internal measuring system
(applys for “singleturn” variants)
The singleturn variants of the PSE2xxC actuator include a partial absolute measuring
system. This means that the position within one turn is measured absolute und the
turns are counted.
These ‘counted turns’ are stored in internal flash every time a run has been finished
