Homing - BONFIGLIOLI Active cube Operation Manual

The following behavior may indicate that the controller parameters are not config-
ured properly:
drive is very loud

drive vibrates

frequent contouring errors

inexact control

For the setting options of other control parameters, e.g. speed controller and accel-
eration pilot control, refer to the operating instructions of the frequency inverter.
Optimize the settings in actual operating conditions, as control parameters for speed
controller and acceleration pilot control depend on actual load. Optimize with differ-
ent load types to obtain a good control behavior in all situations.
10.2.6

Homing

When the drive is started, a defined starting position must be identified for absolute-
value positioning. In a homing operation, the point of reference of the positioning
operation is determined. All positioning data relates to this point of reference. Once
the homing operation is started, the drive moves until it reaches a home switch or
limit switch and stops there. The limit switches limit the motion path. The direction of
movement (search direction) at the start of the homing operation is defined by the
homing mode. Once the limit switches are reached, the direction of rotation of the
drive will be reversed, depending on the selected homing mode. The Limit switches
can also be used as a reference for homing. For a list of homing modes, refer to chap-
ter "List of Homing Modes".
Relative positioning and moving in velocity mode is possible without homing.
Homing can be started:
via a digital input
•
• by a control word via system bus or field bus
• automatically before the start of a motion block positioning operation
1)
Extension module with system bus or field bus interface required
If an absolute value encoder with an absolute value encoder module (e.g. EM-ABS-01)
is used, homing is not required when power supply is turned on. This is defined by
parameter
For more details about the homing function, refer to the "Positioning" application
manual.
10.2.6.1 Start position after homing
After homing:
Initial Position
Initial Position
10.2.6.2 Flying homing
Flying homing can be used in order to update the home position during positioning
operations. For a description of this function, refer to the application manual "Posi-
tioning".
10/13
1220.
Operation Mode
1185 = -1  Drive stops at "stopped" position.
1185 ≠ -1  Drive will be moved actively to the set position.
ACU
Modbus/TCP
1)
61