
B–62073E–1/04 2. INTERFACE BETWEEN CNC AND PMC–NA OR NB
– 223 –
(8) Diagnosis
See (4) in Subsec⋅2.3.31
(a) Procedure for starting the spindle synchronization function
[Outline] The following describes the procedure for starting the spindle synchronization function in the
serial interface spindle amplifier when the system has already started a normal operation.
[Procedure]
CONTENTS
Check to make sure that normal operationis possible.
Prepare/check ladder for spindle synchronization control function
Check the connection/feedback waveform for the position coder
⋅ Set/check parameters related to the position coder
⋅ Set/check gear ratio parameters
⋅ Position gain during synchronization control (standard setting: 1000)
⋅ Set the time constant for acceleration and deceleration during
synchronization control to 200.
(Check to make sure that this value is the same for both spindles)
Check to make sure that speed synchronizaĆ
tion is performed
Check the direction of spindle rotation
Check to make sure that there is no overshooting or
hunting up to the maximum speed of spindle rotation
The difference in error pulses between the two spindles
should be within 5 pulses in spindle speed synchronization
status
⋅ Check the parameter for the level of attainment of
spindle synchronization speed
⋅ Check the SFR/SRV signals
⋅ Check the SSGN signal
⋅ Check the parameter for the direction of rotation with
respect to the +" rotational command
⋅ Position gain during synchronization control
⋅ Adjust the time constant for acceleration and
decelerationduring synchronization control
(the value should be the same for both spindles)
⋅ Velocity loop proportional gain during synchronization control
⋅ Velocity loop integrating gain during synchronization control
⋅ VAdjustment of motor voltage during synchronization control
NG
OK
(1)
(2)
OK
OK
OK
NG
NG
NG