Manual – IPOSplus®
67
6
Referencing
Position Detection and Positioning
6.6.1
Type 0: Reference travel to zero pulse
The reference position is the first zero pulse CCW of the starting position of reference
travel.
A reference cam is not required. Only P902 Reference speed 2 is used for reference
travel.
If reference travel is started via the positive edge at the "REF.TRAVEL START" input,
P904 Reference travel to zero pulse should be set to YES.
If the reference travel is started via the IPOS
plus®
command
Go0
, the argument
"ZP"
should be set, P904 is irrelevant.
If P904 = NO in the first case, or if the argument
"CAM"
is used in the second case, the
drive behaves like with type 5 and sets the current position to the reference reference
position.
6.6.2
Type 1: CCW end of the reference cam
The reference position is the left end of the reference cam or the first zero pulse to the
left after the end of the reference cam.
One of the binary inputs P600 ... 606 must be set to "REFERENCE CAM".
Reference travel starts in a CCW direction; P901 Reference speed 1 is used up to the
first positive edge of the reference cam, then P902 Reference speed 2 is used.
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.
476740875
n
R
e
f
1
n
R
e
f
2
LHWL
S
WL
S
RHWL
S
[
3
]
[
1
]
[
1
]
1
[ ]
[
2
]
2
R
e
fZ
P
M
Z
P
Z
R
e
f
O
ff
CAM
f
R
e
f
O
ffZ
P
Z
X
X
P
i
f
kVA
Hz
n
P
i
f
kVA
Hz
n