Electric Drives
and Controls
6−9
Bosch Rexroth AG
RhoMotion
1070072367 / 04
SERCOS interface
6.3
Referencing
6.3.1
RC-controlled referencing
P401 Ref.-Mode = 0..3
The axes are referenced under rho4 control. Description of the different
Ref modes, see software manual Control functions (No. 1070072420),
chapter Reference point run at Servodyn-D with CAN interface.
The zero-point shift is set at the SERCOS drive via the parameter
S-0-0177 (absolute dimension Offset 1). The axis must be defined as
absolute axis => P-0-0006 (position transmitter type motor encoder) =
1. Reference point actual value and reference point offset are set in the
rho4 via parameters P207 and P208. The position actual value system
in the drive is not influenced, i.e. the shift into the reference system
(S-0-0172) is not carried out. RC-controlled referencing is only possible
with cyclically absolute and absolute measuring systems.
6.3.2
Drive-controlled referencing
P401 Ref.-Mode = 10
Referencing is started by the rho4 via command ‘Drive-controlled refe-
rencing’ (S-0-0148).
The drive performs on its own the reference run according to the set pa-
rameters (see Servodyn-D parameter manual, No. 1070066018). After
the reference run is completed, the reference position determined by
the drive is adopted by the rho4 as actual value.
Activation in the rho4
Parameter P402 (direction Go to reference point) must be set on <> 0.
The direction of the reference run set in the rho4.0 has no effect. P403
(effectiveness reference point switch) has also no effect. The real refe-
rence run direction and effectiveness of the reference point switch is set
via S-0-0147 (reference run parameter) in the drive.
The run to the reference point is started in the rho4.0 via mode 1 in the
manual operation or via the command REF_PNT in the BAPS program
in the automatic operation.
Special features or restrictions for drive-lead referencing:
D
not appropriate for mechanically coupled axes, e.g. lift head spindle
D
can only be started for a maximum of 8 SERCOS axes at the same
time
Содержание Rexroth Rho 4.0
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Страница 22: ...2 2 Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 System overview Notes ...
Страница 78: ...4 14 Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 PCLrho4 0 Notes ...
Страница 168: ...A 4 Electric Drives and Controls Bosch Rexroth AG RhoMotion 1070072367 04 Appendix Notes ...