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6 Description of the Functions
6.2
Positioning mode (P0700 = 3, from SW 2.1)
Table 6-35
Parameter overview when referencing/adjusting, continued
No.
Name
0166
Reference cam
approach direction
This parameter defines the approach direction/search direction of the reference cam.
At power–on, the axis can be located in front of or at the reference cam.
S
Assumption: The axis is located in front of the reference cam.
When starting reference point approach, the reference cam is searched for in the direction
specified in this parameter.
S
Assumption: The axis is located at the reference cam
When starting the reference point approach, the reference cam is already known. The axis
now moves away from the reference cam in the direction opposite to that entered in this pa-
rameter and continues the reference point approach.
1
The reference cam is in the negative direction
0
The reference cam is in the positive direction
Search direction
P0166 = 0
Note:
For an axis without reference cam (P0173 = 1), referencing is started with phase 2 (synchroniz-
ing with the zero reference pulse).
The approach direction when searching for the zero pulse is defined using P0166.
0167
Inverting
reference cam
... the switching behavior of the reference cam signal (input terminal with function number 78) is
adapted.
1
Inversion
0
No inversion
0170
Maximum distance to the
reference cam
... specifies the maximum distance the axis can traverse from starting the reference point
approach in order to find the reference cams.
Note:
When a fault condition occurs, the axis remains stationary and fault 160 is signaled (reference
cam not reached).
6-402
Parameters
Min.
0
Zero pulse for synchronization
Reference
Reference
cam
point
0
––> necessary for an NC contact
––> necessary for a NO contact, standard
0
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Standard
Max.
0
1
Zero pulse for synchronization
Reference
Reference
cam
point
0
1
10 000 000 200 000 000
E Siemens AG 2005 All Rights Reserved
01.99
! not 611ue !
Units
Ef-
fec-
tive
–
PrgE
Search direction
P0166 = 1
–
Im-
medi-
ately
MSR
PrgE
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