94 •
750-671 [Steppercontroller]
Positioning
WAGO-I/O-SYSTEM
750
I/O
Modules
Start
E
nd
L
i
m
i
t sw
i
tch
negat
i
ve
R
eference
sw
i
tch
L
i
m
i
t sw
i
tch
p
os
i
t
i
ve
Fig. 2.1.2-27: Referencing at negative end of reference switch with start in negative direction
from reference switch
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Note:
On a start from the reference switch, the starting direction is reversed by the
module to first ensure that the reference switch is free.
Referencing to positive end of reference switch, starting in positive
direction
Operating mode
Referencing,
M_Reference = 1
Mailbox,
Command
START_
REFERENCING
Note
Reference_Mode
, Bit 0
0 Parameter 3 Bit 0 0 Referencing to reference switch
Direction_Pos 1
Direction_Neg 0
Parameter 3 Bit 1 1 Start in positive direction
Reference_Mode
, Bit 1
1 Parameter 3 Bit 2 1 Referencing to positive end
Start
E
nd
L
i
m
i
t sw
i
tch
negat
i
ve
R
eference
sw
i
tch
L
i
m
i
t sw
i
tch
p
os
i
t
i
ve
Fig. 2.1.2-28: Refderencing at positive end of reference switch with start in positive direction
from positive movement range
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