Manual – IPOSplus®
71
6
Referencing
Position Detection and Positioning
If reference travel is started via the positive edge on the "REF.TRAVEL START" input,
the drive is either referenced to the falling edge of the reference cam or to the zero pulse
after the falling edge of the reference cam, depending on the setting in P904 Refe-
rencing to zero pulse.
If reference travel is started with the IPOS
plus®
command Go0, the drive is referenced
to the falling edge of the reference cam or to the zero pulse after the falling edge of the
reference cam, depending on whether the argument "ZP" or "CAM" is set.
The reference cam must start just before or in line with the CW hardware limit switch and
must project into the limit switch. This ensures that no contact is made with the hardware
limit switch during reference travel.
6.6.8 Type 7: Reference cam flush with CCW limit switch
The reference position is the right end of the reference cam or the first zero pulse to the
right after the end of the reference cam.
One of the binary inputs P600 ... 606 must be set to "REFERENCE CAM". The reference
travel starts in CW direction with P901 reference speed 1 until the first positive edge of
the reference cam is reached. Then P902 reference speed 2 is used. As opposed to type
2, the drive starts in CW direction and reverses at the reference cam.
If reference travel is started via the positive edge on the "REF.TRAVEL START" input,
the drive is either referenced to the falling edge of the reference cam or to the zero pulse
after the falling edge of the reference cam, depending on the setting in P904 Refe-
rencing to zero pulse.
If reference travel is started with the IPOS
plus®
command Go0, the drive is referenced
to the falling edge of the reference cam or to the zero pulse after the falling edge of the
reference cam, depending on whether the argument "ZP" or "CAM" is set.
476763275
nRef1
nRef2
LHWL
A
3
[2]
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