HEIDENHAIN iTNC 530 HSCI - Page 982

982 HEIDENHAIN Technical Manual iTNC 530 HSCI
The diagram shows in principle how you can determine the switchover speeds
for the wye/delta switchover:
• 1: Lower switching speed = n(intersection) – 2% to 4% of nmax
• 2: Speed at which the two characteristic curves intersect:
n(intersection) at n(S1_wye) = n(S1_delta)
• 3: Upper switching speed = n(intersection) + 2% to 4% of nmax
MP2223.x Bit 3—Wait for readiness of current controller
Format: %xxxxxxxxxxxxxxxx
Input: 0: Wait for readiness of current controller
1: Do not wait for readiness of current controller
Danger
The contactor for the wye/delta switchover must not be switched under
load!
Attention
 On machines with transmission or wye/delta switchover, the RPM
FACTOR (Q403) function of Cycle 209 (Tapping with chip breaking) must
not be used with a value other than the default value. Switching the gear
range or wye/delta switchover during retraction with the RPM FACTOR
function may cause damage to the machine.
 Please inform the customers who are using these types of machines that
the RPM FACTOR (Q403) function of Cycle 209 (Tapping with chip
breaking) must not be used with a value other than the default value.
 Synchronous motors may only be switched at standstill. Switching a
rotating synchronous motor is not possible.