Dog Mode Home Position Return - Mitsubishi Electric MR-J3-T Quick Start Manual

Positioning with Digital Inputs
4.3.2

Dog mode home position return

In this mode, instead of the encoder Z-phase(Fig. 4-6), the DOG signal is used to switch from
"home position return speed" PC04 to "creep speed" PC05. You can use parameter PD16 "prox-
imity dog detection polarity" to specify whether a logical "1" or a logical "0" should be identified as
an active DOG signal.
As in
of the encoder (Z-phase) with PC06 "home position offset (shift)". In addition to this you can also
set a non-zero coordinate for the home position with PC07.
Conditions for the proximity dog signal:
The proximity dog signal (DOG) must fulfill the following conditions to ensure that the Z-phase of
the encoder is detected during the activation period of the DOG signal:
V
L
1
60
L 2
2
MR-J3-T
above, the physical home position can be shifted in relation to the home (zero) position
t
d
L1 = Length of the DOG signal in [mm]
2
V = Home position return speed in [mm/min]
t = Deceleration time in [s]
d
S L2 = Length of the DOG signal in [mm]
S = Distance for one rotation of the motor in [mm]
Home Position Return
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