Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS, Functional Description

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ECODRIVE03-FL*-04VRS Functions
8-7
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
Sequence Control for "Homing"
The command value profile depends on parameter:
•
C009, Homing configuration
The following diagram explains this:
Sv5038fj_AE.WMF
Fig. 8-2: Position Command Value Profile for Homing Velocity and Homing
Acceleration
Executing the movement required for homing incremental encoders can
consist of up to three subprocesses:
•
If the home switch evaluation process has been activated and there
are no distance-coded reference marks, then the drive accelerates to
the homing velocity and travels in the selected homing direction
(Parameter C009) until the positive home-switch signal edge is
detected. If the drive is already at the home switch when homing starts
(REF X3/1), the drive first accelerates in the opposite homing direction
until the negative home switch signal edge is detected, and then
reverses the direction of travel. If a distance-coded measuring system
is being homed, the drive travels in the set homing direction when the
home switch is not activated. However, if the home switch has been
activated when the command is invoked, the drive travels in the
opposite direction.
WARNING
⇒
Make sure that the home switch signal edge lies
within the reachable travel range.
•
If reference marks are present (types 2 to 4, see above), and if the
reference mark evaluation is activated, then the drive travels in the
homing direction until it detects a reference mark. In distance-coded
measuring systems (type 4), two sequential reference marks must be
passed.
•
After the necessary movements have been executed to detect the
home switch or reference mark, the drive is positioned at the reference
point.
Executing Movement