Справочник Пользователя для Mitsubishi Electronics MR-MC241
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6. APPLICATION FUNCTIONS
6.18 Home position search limit
6.18.1 Summary
The home position search limit function is that while returning to home position, through movement operation in
the opposite direction of home position return, if the movement exceeds the parameter set for the home
position search limit (parameter No.024A, 024B), a home position search limit error (operation alarm 98, detail
01) occurs and home position return operation is terminated. It is a function used to prevent unexpected
operation in case the dog signal and limit switch cannot detect correctly due to a failure. The home position
search limit function is valid for the following home position return methods.
(1) Home position return using a dog method
(2) Home position return using the dog cradle method
(3) Home position return using a limit switch combined method
(4) Home position return using a limit switch front end method
(5) Home position return using a dog front end method
(6) Home position return using a scale home position signal detection method
(7) Home position return using a scale home position signal detection method 2
6.18.2 Set items
the opposite direction of home position return, if the movement exceeds the parameter set for the home
position search limit (parameter No.024A, 024B), a home position search limit error (operation alarm 98, detail
01) occurs and home position return operation is terminated. It is a function used to prevent unexpected
operation in case the dog signal and limit switch cannot detect correctly due to a failure. The home position
search limit function is valid for the following home position return methods.
(1) Home position return using a dog method
(2) Home position return using the dog cradle method
(3) Home position return using a limit switch combined method
(4) Home position return using a limit switch front end method
(5) Home position return using a dog front end method
(6) Home position return using a scale home position signal detection method
(7) Home position return using a scale home position signal detection method 2
6.18.2 Set items
The following items are set for using the home position search limit function.
Parameter
No.
Name Abbreviation
Units
Setting
range
Initial
Value
Remarks
024A Home
position
search limit
(lower)
(lower)
ZLL Command
Units
0000h
to
FFFFh
0000h Set a limit on the movement amount when searching
for the home position. If the setting for the home
position search limit is 0, this function does not
operate.
position search limit is 0, this function does not
operate.
024B Home
position
search limit
(upper)
(upper)
ZLH 0000h
to
7FFFh
0000h
API LIBRARY
Use the sscChange2Parameter/sscCheck2Parameter function to set/get the
home position search limit.