Panasonic FPG Series Technical Manual page 199

FP∑ Positioning Unit
Cases in which limit errors occur, and their contents
E point control
P point control
Home return
Home return
(Home search)
JOG operation
JOG positioning
operation
Pulser input operation
Operation when above error
occurs
1. Data of this area
2. When the near home input will not go ON but the Over limit input in the opposite goes ON after
the table reversed the direction by the Over limit switch during the home search, a limit error occurs.
Note: Pulse/Sign output mode can be started up.
When the CW/CCW output mode is set, the limit error will occur.
If the error occurs, solve it using the methods as described below.
·Using the home return function
(1) Turn ON the Error clear (Y_F) of the Over limit input (+), and then turn it OFF.
(2) Turn ON the Home return start (Y_F) (towards the elapsed value minus (-) direction), while the
Over limit input (+) is ON.
·Using the JOG operation function
(1) Turn ON the Error clear (Y_F) of the Over limit input (+), and then turn it OFF.
(2) Turn ON the Reverse JOG (Y_4), while the Over limit input (+) is ON.
Program
At startup
Over limit
input (+)
Forward Error
Reverse Error
Forward Error
Reverse Error
Forward Error
Reverse
Forward When the home position cannot be searched, a limit error
occurs. (Refer to the notes below.)
Reverse
Forward Error
Reverse
Forward Error
Reverse Error
Forward Error
Reverse
Note)
Operation does not begin
is not subject to errors.
During operation
Over limit Over limit
input(-) input (+)
Error Error
Error Error
Error Error
Error Error
Error
Error
Error
Error
Error Error
Error Error
Error
Error
Stop
Operation if an Error Occurs
Over limit
input(-)
Error
Error
Error
Error
Error
Error
Error
Error
Error
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