6.5 Software Limit Function
6-11
6
Function/Command Related Parameter
s
6.5
Software Limit Function
This function forcibly stops the servomotor in the same way as the overtravel function when the
moving part of the machine enters the software limit range specified by the parameters (com-
mon parameter 26 (Pn804), common parameter 28 (Pn806)).
The method for stopping the servomotor is the same as when an OT signal is input.
Conditions for Enabling the Software Limit Function
The software limit function is enabled when the following operations are completed. In other
cases, the function remains disabled.
•
Zero point return operation by the ZRET command is completed.
•
The coordinate setting is completed after reference point setting (REFE = 1) by executing the
POS_SET command.
•
When using an absolute encoder, the sensor is turned on by the SENS_ON command.
Parameters Related to Software Limit Functions
Common
Parameters
Name
Data Size
(Byte)
Setting Range
Unit
Factory
Setting
25
Limit Setting
4
0h to 33h
–
0000h
bit 0
P-OT (0: Enabled, 1: Disabled)
bit 1
N-OT (0: Enabled, 1: Disabled)
bit 2
Reserved
bit 3
Reserved
bit 4
P-SOT (0: Disabled, 1:
Enabled)
bit 5
N-SOT (0: Disabled, 1:
Enabled)
bit 6 to
31
Reserved
26
Forward Software Limit
4
−
1073741823
to
1073741823
Reference
unit
1073741823
28
Reverse Software Limit
4
−
1073741823
to
1073741823
Reference
unit
−
1073741823
