Mitsubishi Electric MELSEC iQ-R Series User Manual page 182

• Negative direction
2. mcNegativeDirection
The positioning is executed from the current position to the target position of negative direction (address decrease).
[Setting the target position exceeding the ring counter (Options bit16)] "0: Not allow"
The setting range of the target position is "Ring counter lower limit value  Target position < Ring counter upper limit value".
Setting
Ring counter lower limit value  Target
position  Current value
Current value < Target position < Ring
counter upper limit value
[Setting the target position exceeding the ring counter (Options bit16)] "1: Allow"
The positioning operation that underflows the ring counter lower limit value can be performed. In this case, the ring counter
lower limit value is used as a reference, and positioning is performed with the amount of movement exceeded as the relative
movement amount. If the target position is set with the value bigger than the ring counter upper limit value, positioning does
not start for the error "Out of Ring Counter Range" (error code: 1AA3H).
6 AXIS CONTROL FUNCTION
180
6.1 Single Axis Positioning Control
Operation
Ring counter
100
upper limit value
0
Ring counter
-100
lower limit value
Ring counter
100
upper limit value
0
Ring counter
-100
lower limit value
Current value "0"
Current value "0"