Inovance H3U Series - Page 399

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6
6 Positioning and InterpolationDSZR: DOG search return to origin
DSZR: DOG search return to origin
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Overview
After the system is started, it accelerates to the regression output frequency set by the special register
to drive the actuator to move toward the origin (DOG) according to the set action sequence. After a DOG
signal is detected, the system decelerates to the creep speed. When the DOG signal is OFF, pulse output
is stopped.
DSZR S1 S2 D1 D2
DOG search return
to origin
Applicable model:
H3U
S1
DOG
signal
Specied origin input signal (DOG)
16-bit instruction
(9 steps)
DSZR:
Continuous
execution
32-bit instruction
(17 steps)
DDSZR:
Continuous
execution
S2
Origin
signal
Specied origin input signal
D1
Output
port
High-speed pulse output port
D2
Output
direction
Pulse running direction port or bit variable
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Operands
Operand
Bit Element Word Element
System·User System·User Bit Designation Indexed Address Constant
Real
Number
S1 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM V Z Modication K H E
S2 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM V Z Modication K H E
D1 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM V Z Modication K H E
D2 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM V Z Modication K H E
◆
Functions and actions
When the PLC works in combination with the servo drive, this instruction is used to output pulses at the
pulse speed specied by the special register through the pulse output port, so that the actuator moves to
the action origin according to the preset action sequence; when the near point signal (DOG) changes from
ON to OFF during running, and the clearing signal changes from OFF to ON, the PLC immediately stops
outputting the pulse.
The rotational direction signal is output during regression, and the clearing signal is output after regression.
In a system with forward/reverse rotation limit, the DSZR with DOG search mode can be enabled. In a
system without forward/reverse rotation limit or not using the forward/reverse rotation limit for original
regression, the zero return can be performed by specifying the zero return direction.
S1 indicates the input of the near point signal (DOG). Although any of the X, Y, M, and S signals can be
used, the X signal boasts the best timeliness.
S2 indicates the input of the origin signal. To represent the accurate position of the action origin, you can
only specify the X signal.
D1 indicates the pulse output port, which can be Y0, Y1, Y2, Y3, or Y4.