Panasonic FP-XH M8N16PD, User Manual

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17.2 Software Limit
17-3
17.2 Software Limit

Software limit functions
The system is designed to mechanically set the limit (+) and limit (-) to restrict the moving
range of a motor.
Separately from the mechanical limits (+) and (-), the software limit is a function to add the
limits for the absolute coordinate managed within the positioning unit. As the software limit is a
function for the protection of the motor, servo amplifier and motor driver, it is recommended to
set them to the values within the range of the mechanical limits (+) and (-) as below.
Table
(-) side
(+) side
Limit (+)
Ball screw
Limit (-)
Lower limit value of
software limit
Upper limit value
of software limit
If the operating range of the motor exceeds the setting range of the software limit (upper and
lower limit values), an error will occur, and the deceleration stop will be executed. It is
necessary to clear the error and move the motor into the range of the software limit using an
operation such as JOG operation after the stop.
Table
(-) side (+) side
Lower limit value of
software limit
The table can move within the setting
range of the software limit.

Software limit settings
• Software limit can be enabled/disabled in the Parameter Settings dialog box of Configurator
PM7 by axis.
• Software limit can be enabled/disabled separately for position control, home return and JOG
operation. For example, you can enable software limit during home return and JOG
operation