10
Utility Functions
10.3.1
Fixed Parameter Settings
10-12
10.3 Software Limit Function
The software limit function is used to set upper and lower limits for the range of machine movement
in fixed parameters so the MP2300 can constantly monitor the operating range of the machine. The
function can be used to help prevent machine runaway or damage due to incorrect operation as well
as incorrect references in a motion program.
Disable the software limits in the SERVOPACK to use the MP2300 for position control in the
machine coordinate system.

Refer to your SERVOPACK manual for the procedure on disabling software limits.
10.3.1 Fixed Parameter Settings
The following fixed parameters must be set in order to use the software limit function.

The software limit function is enabled only after completing a Zero Point Return or Zero Point Set-
ting operation.
If any fixed parameters are changed and saved or the power is turned ON, the Zero Point Return
or Zero Point Setting operation must be performed again.
Servo-
motor
Negative
overtravel
Software Limit,
lower limit
Range of machine movement
Positive
overtravel
Software Limit,
upper limit
Fixed Parameter Number Name Unit Setting/Range
1
Function Selection 1
Bit 1: Forward Soft Limit Enabled
(Forward Software Limit Enabled)
Bit 2: Reverse Soft Limit Enabled
(Reverse Software Limit Enabled)
−
0: Disable, 1: Enable
0: Disable, 1: Enable
12 Forward Software Limit Reference unit
−2147483648
to 2147483647
14 Reverse Software Limit Reference unit
−2147483648
to 2147483647