Special Procedure For Asynchronous Motors; Module 9174 Spindle Status Regarding Wye/Delta Switchover - HEIDENHAIN iTNC 530 HSCI Technical Manual

Special procedure
for asynchronous
motors
984

Module 9174 Spindle status regarding wye/delta switchover

Module 9174 supplies the current spindle status for wye/delta operation. In
order to receive one of the two "Request switchover x -> x" status values, the
speed-dependent wye/delta switchover monitoring in Module 9173 must be
active.
Call:
CM 9174
PL B/W/D/K <Status>
0: Spindle in wye operation
1: Request for wye -> delta switchover
2: Spindle in delta operation
3: Request for delta -> wye switchover
Special procedure for wye/delta switchover on asynchronous motors.
Activate the power module and the current controller simultaneously. By

setting MP2222 bit 10, the sequence upon restart of the drive after a wye/
delta switchover is optimized. HEIDENHAIN recommends setting bit 10 = 1
when using asynchronous motors.
Demagnetize the motor during switch-off. By setting MP222 bit 11, the

motor is demagnetized during switch-off of the drive before the switching
process. HEIDENHAIN recommends setting bit 11 = 1 only if the residual
magnetism of the motor leads to problems during switching (e.g.
"overcurrent" error message of the power module during switching).
MP2222.x Special controller functions
Format: %xxxxxxxxxxxxxxxx
Input: Bit 10 – Optimized sequence for wye/delta switchover on
asynchronous motors: Activate the power module and the
current controller simultaneously.
0: Not active
1: Active
Bit 11 – Special sequence for wye/delta switchover on
asynchronous motors: Demagnetize the motor during switch-
off.
0: Not active
1: Active
HEIDENHAIN Technical Manual iTNC 530 HSCI