Download Operating Instructions - Q-TECH

3 Functional Description
3.3 Homing and limit switches
Direct programming via HA, HL and HN commands:
Command
Function
Description
HA
Home Arming
Set the position value to 0 and
delete corresponding HA bit at edge
of respective limit switch.
Setting is not saved.
HL
Hard Limit
Stop motor and delete
corresponding HL bit at edge of
respective limit switch.
Setting is not saved.
HN
Hard Notify
Send character to RS232 and delete
corresponding HN bit at edge of
respective limit switch.
Setting is not saved.
HL/SHL command:
Positioning mode: When the edge occurs, the motor
positions itself on the reference mark with maximum
acceleration.
Velocity controller mode: The motor is decelerated
at the set acceleration value when the edge occurs,
i.e. it goes beyond the reference mark. The reference
mark can be precisely approached with a subsequent
positioning command (command M).
Advantage: No abrupt motion changes.
These special commands can be used to define actions
that are to be triggered at an edge of the relevant input,
independently of a homing sequence. A programmed limit
switch function will remain effective until the preselected
edge occurs. The programming can be changed with a
new command before an edge occurs. The settings are not
saved with the SAVE command, so all limit switches are
inactive again after switch-on.
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