Touch Probe - Mitsubishi Electric MELSERVO-J4 MR-J4-TM Instruction Manual

8. MANUFACTURER FUNCTIONS

8.6 Touch probe

The touch probe function that executes current position latch by sensor input can be used.
Based on the conditions specified to Touch probe function (P24760), the function latches position feedback
of rising/falling edges of touch probe signals (TPR1/TPR2) and stores the feedback in each parameter from
P24762 to P24765. This function is the same as the mark detection.
The following shows the touch probe detection resolution. Enabling the high precision touch probe will
disable the encoder output pulses.
Input terminal
Encoder [Pr. PD37] = _ _ _ 0 (Selection of high-precision touch probe
is disabled)
resolution
[Pr. PD37] = _ _ _ 1 (Selection of high-precision touch probe
is enabled)
(1) Related PROFIdrive parameters
PNU Sub Access
24760 0 R/W Touch probe function
24761 0 R Touch probe status
24762 0 R Touch probe pos1 pos value
24763 0 R Touch probe pos1 neg
value
24764 0 R Touch probe pos2 pos value
24765 0 R Touch probe pos2 neg
value
Name Type
Unsigned16
Unsigned16
Integer32
Integer32
Integer32
Integer32
8 - 6
Touch probe1
TPR1
55 μs
55 μs
Default
value
Settings such as enabling/disabling of the
touch probe function and trigger conditions
0 Status information of the touch probe function
0 Shows the rising edge position of Touch
probe 1.
(Pos units)
0 Shows the falling edge position of Touch
probe 1.
(Pos units)
0 Shows the rising edge position of Touch
probe 2.
(Pos units)
0 Shows the falling edge position of Touch
probe 2.
(Pos units)
Touch probe2
TPR2
55 μs
Rising: 2 µs
Falling: 55 µs
Description