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ID 442454.02
29
WE KEEP THINGS MOVING
Basic information
2
Operation manual CiA 402 Controller Based
2.2.3.3.12
Referencing method 27
Referencing method 27 is characterized by the following features:
•
Centrally arranged reference switch
•
Negative initial movement
Sequence
Case I: The drive is located between the reference switch and the positive limit
switch.
1. The drive starts in negative direction with ramp
A588
and speed
A587.0
.
2. The drive turns around on the reference switch and changes to speed
A587.1
.
3. When the negative reference switch edge is detected, the reference is set.
4. The drive comes to a complete stop with ramp
A588
.
Case II: The drive is already located on the reference switch.
1. The drive starts in positive direction with ramp
A588
and speed
A587.1
.
2. When the negative reference switch edge is detected, the reference is set.
3. The drive comes to a complete stop with ramp
A588
.
Case III: The drive is located between the negative limit switch and the
reference switch.
1. The drive starts in negative direction with ramp
A588
and speed
A587.0
.
2. The drive turns around on the negative limit switch.
3. With a positive edge of the reference switch, the drive changes to speed
A587.1
.
4. When the negative reference switch edge is detected, the reference is set.
5. The drive comes to a complete stop with ramp
A588
.
LS+
RS
27
LS-
27
27
RS
II
III
LS-
I