Mitsubishi Electric M800VW Series Programming Manual page 548

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.10 Spindle Position Control (Spindle/C Axis Control)
 Zero point return while spindle is at a standstill
 Returns to the zero point (Z-phase position) in accordance with the direction of zero point return parameter for the spindle
C axis (#3106 zrn_typ/bit A-9).
Directions of rotation include forward, reverse, and shortcut.
 Does not return to the zero point if already positioned at the coordinate zero point. (Z phase has already been passed)
 When the Z-phase is not detected, it will be detected by the following operations, and then the C axis changeover operation
is performed:
- For the case that "#3106 zrn_typ/bit3" (Phase Z signal detection ON) is set to "0" (Invalid)
The Z-phase will be detected by rotating the spindle in the direction set in "#3106 zrn_typ/bitA, bit9" (Spindle/C axis
zero return direction).
When "#3106 zrn_typ/bitA, bit9" (Spindle/C axis zero return direction) is "00" (shortcut), the Z-phase detection is per-
formed by rotating the spindle in the direction set in "#3106 zrn_typ/bit0" (Z-phase detection direction).
- For the case that "#3106 zrn_typ/bit3" (Phase Z signal detection ON) is set to "1" (Valid)
The Z-phase will be detected by rotating the spindle in the direction set in "#3106 zrn_typ/bit0" (Z-phase detection direc-
tion).
 Zero point return while spindle is rotating
 When the direction of spindle rotation and the direction of zero point return parameter for the spindle C axis (#3106 zrn_typ/
bit A-9) are the same or set to shortcut, returns directly to the coordinate zero point (Z-phase position) in the direction of
spindle rotation.
 When the direction of spindle rotation and the direction of zero point return parameter for the spindle C axis (#3106 zrn_typ/
bit A-9) are the different, returns zero point (Z-phase position) in accordance with the direction of zero point return parame-
ter (#3106 zrn_typ/bit A-9).
When the direction of zero point return parameter (#3106 zrn_typ/bitB) is set to "1", returns directly to the zero point (Z-
phase position) in the direction of spindle rotation.
#3106 zrn_typ
bit A-9: 10 (Reverse) ＋ Spindle forward state
bitB: 0 (Direction of C-axis zero point return)
Speed
Forward run
Spindle zero point
Reverse run
*SVFn
#3106 zrn_typ
bit A-9: 10 (Reverse) ＋ Spindle forward state
bitB: 1 (Direction of spindle rotation)
Speed
Spindle stop position
Forward run
Position
Reverse run
*SVFn
527
Spindle zero point
Position
IB-1501668-B