Description of the Software Modules and Parameters
Parameter manual
b maXX
BM3000
Document no.: 5.12001.07
585
4
Figure 191:
Procedure of homing to negative end switch without zero pulse
m
Phase 1
In Phase 1, Homing speed (
) is used until the Reference switch is reached.
The acceleration to reach the homing speed is adjusted with
Homing accel-
eration.
m
Phase 2
After the reference switch has been reached, the drive is braked with
Homing
deceleration and one eight of the homing speed (however, at least to the homing final
speed) in the reverse direction of travel. It will now be driven out of the switch again.
m
Phase 3
The falling switch edge of the switch will trigger another reversal of the direction of trav-
el. The drive will now approach the switch again, once again with an eight of the refer-
encing speed.
m
Phase 4
Once the reference switch is reached, the drive is decelerated and accelerated in the
reverse direction of travel to the homing final speed, which means the drive will slowly
exit the switch.
m
Phase 5
The drive is immediately braked to speed 0 at the falling switch edge of the switch and
the home position is entered.
4.8.3.5 Homing without setting the home position
Setting the home position can also be deactivated for special applications (
Bit 4). The position target and actual values will then not be changed. Instead, the drive
stops at the home position and the position values can be read out from the control.
