Zeroing Servo Program - Mitsubishi Electric A173UHCPU Programming Manual

7. POSITIONING CONTROL
7.21.5

Zeroing servo program

Servo Positioning
Instruction Method
−
ZERO
[Control Details]
[Caution]
Zeroing uses the ZERO servo instruction.
Common
Number of
Controllable
Axes
!
1
(1) Zeroing is carried out using the method designated in the zeroing data (see
Section 7.21.1).
Refer to the following sections for details about the zeroing methods:
• Proximity dog method ...................... Section 7.21.2
• Count method .................................. Section 7.21.3
• Data set method............................... Section 7.21.4
(1) If the following circuit conducts zeroing using the proximity dog method after the
PLC ready flag (M2000) turns ON but before the PCPU ready flag (M9074)
turns ON, another zeroing request is issued after zeroing is complete.
Therefore, apply interlock conditions to M9074 and M2402+20n (in-position
signal) when carrying out a zeroing. (See program example.)
M2001 M2410 M9074 M2402
0
CIRCUIT END
Items Set by Peripherals
Arc
Start reception flag
Zeroing complete signal
In-position signal
7 − 147
Parameter Block
∆
! : Must be set
∆ : Set if required
K
SVST J1 0
Others