Mitsubishi Electric M800VW Series Programming Manual page 560

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.12 Guide Bushing Spindle Synchronization
Explanation of operation
[Signal timing chart of G/B spindle synchronization]
Signal from PLC to CNC
(a) G/B spindle
synchronization
valid (GBON)
Signal from CNC to PLC
(b) G/B spindle
synchronizing
mode (GBMOD)
(c) G/B spindle
synchronization:
position control
synchronizing (GBSYN)
[Rotation speed of reference spindle and G/B spindle during G/B spindle synchronization]
Spindle rotation speed (r/min)
1000
500
0
-500
Acceleration
-1000
N10
Reference spindle
forward run start
command
Stopping
Coast to a
stop
[Program example]
M○○; (Turn ON G/B spindle synchronization valid)
N10 S1=1000M03;
;
N20 S1=500;
;
N30 M4;
;
N40 M5
;
M ;
(Turn OFF G/B spindle synchronization valid)
Rotation
Rotation
speed
speed
change change
N20 N30
Reference Reference spindle
spindle rotation reverse run start
speed change command
539
G/B spindle synchronization
Reference spindle
G/B spindle
Time
Deceleration
N40
Reference spindle run start
command OFF
Stopping
Coast to a
stop
IB-1501668-B