Precautions - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.8 Turret Gear Change Control
Operation when commands are sent to related functions while changing gears
The following table lists the operations that occur when a command is sent to related functions while changing gears. The
operations in the following table also apply when the spindle-mode servo motor control is operating.
Function name
Spindle speed command (S command)
Constant speed command (constant
surface speed control)
Spindle gear change
Spindle position control (During C-axis
mode)
Spindle synchronization I/II
Tool-spindle synchronization IA/IB/IC
Tool-spindle synchronization II
Spindle superimposition control
Spindle orientation/indexing
Synchronous tapping cycle/tap cycle
Thread cutting/thread cutting cycle
Other related functions
Function name
Turret indexing
Proximity orientation
Guide bushing spindle synchronization
Synchronous tapping orientation

13.8.5 Precautions

(1) The gear ratio ("#13057 SP057 (GRA1 Spindle Gear Ratio 1) "and "#13061 SP061 (GRB1 Motor Gear Ratio 1)") of the
first gear for the spindle parameter is enabled when using the turret gear change control with normal spindles. The gear
ratio of the first gear for the spindle parameter is enabled even if a gear has been selected by the turret gear change con-
trol. For this reason, configure the gear ratio for the spindle parameter to "1:1".
(2) The gear ratio ("#52201 SV001 PC1 (Motor Gear Ratio)" and "#52202 SV002 PC2 (Spindle Gear Ratio)") for the spindle
servo parameter is enabled when using the turret gear change control with spindle servo motors. The gear ratio for the
spindle servo parameter is enabled even if a gear has been selected by the turret gear change control. For this reason,
configure the gear ratio for the spindle servo parameter to "1:1".
(3) When the turret gear change control is valid (the spindle specification parameter "#43001 sgear_tret" is set to "1"), set the
following gear ratio parameters to "1":
 Spindle parameters: #13057 to #13064
 Spindle servo parameters: #52201 to #52202
(4) When you change the setting value of spindle specification parameter "#43002 SGRA1 (Spindle-side gear ratio 1)" to
"#43009 SGRA4 (Motor shaft-side gear ratio 4)", gear ratio after the change will be valid from the next time of the gear
selection. If you change the gear ratio of the selected step, select the gear step again after selecting another gear step.
IB-1501668-B
Starts outputting commands after waiting for the gear change to complete when commands
are output during gear changes.
Turret gear changes are disabled when "#3121 tret (turret indexing)" is set to "1".
Turret gear changes are disabled when "#3106 zrn_typ/bitF" is set to "1".
Turret gear changes are disabled for the guide bushing spindle synchronization standard
axis and the guide bushing spindle.
When changing turret gears while the spindle is configured as either a standard axis (#3074
GBsp = 1) or guide bushing spindle (#3074 GBsp = 2), the operation error (M01 1015) is
generated if the G/B spindle synchronization signal (Y778: GBON) is on.
The synchronous tapping orientation positions at the spindle end. The synchronous tapping
orientation positions at the same position when repeatedly performed for the selected gear.
When changing gears, it will not position at the same previous position even if the gear is
the same.
518
Operation
Conditions