Z Phase Automatic Adjustment - Mitsubishi MELDAS MDS-C1 Instruction Manual

Always carry out the initial automatic adjustment when starting the spindle system up for the first
time or when the spindle drive unit has been replaced.
1) MDS-C1-SPM
2) MDS-C1-SP/SPH
3) MDS-C1-SPX/SPHX : "3-5-4 Spindle end PLG automatic adjustment"
3-5-2

Z phase automatic adjustment

Z-phase automatic adjustment is a function that automatically adjusts the relative position of the IPM
spindle motor pole and the PLG Z-phase pulse signal input into the spindle drive unit. The adjustment
data is saved in the drive unit, and is used to control the motor the next time the power is turned ON.
The motor cannot be started without completing this adjustment (alarm 16 will be detected), so always
carry out this adjustment when starting up the spindle system, when the spindle motor has been
replaced, when the PLG has been replaced or adjusted, or when the spindle drive unit has been
replaced.
<Adjustment methods>
1) If SP205 is set to 1, change it to 0, and reboot the NC power. If it is already set to 0, go to step
2.
2) If the SP205 setting is 0, change it to 1.
3) Input forward run start. The spindle motor will automatically rotate at the adjustment speed
(two stages for Z-phase pulse detection and pole position detection). (Control output 4H. bit D
set to 1 after starting until the power is turned ON again.)
4) The adjustment results will be calculated and the operation will automatically stop approx. 90
seconds after forward run is started (may vary according to pole position).
5) Turn forward run OFF. (The adjustment data will be saved.)
6) Reboot the NC power.
POINT
CAUTION
: "3-5-2 Z-phase automatic adjustment" + "3-5-3 Motor end PLG
automatic adjustment"
: 3-5-3 Motor end PLG automatic adjustment"
1. If the NC power is turned ON when SP205 is set to 1, the adjustment data
saved in the drive unit will be used for control.
2. To adjust again, set SP205 to 0, and then turn the NC power ON again.
3. If operation is started without completing the adjustment, alarm 16 will occur.
1. The motor will automatically rotate at the adjustment speed during Z-phase
automatic adjustment. Do not touch the rotating sections as this is
hazardous.
2. Complete PLG adjustment before starting this adjustment. (Built-in motor)
3. Keep the spindle load GD
using this function. (The maximum GD
3. Setup
2
and friction load as small as possible when
2
is approx. 5-fold the motor GD
3 - 90
2
.)