Momentary Utilization Of Drive Motors - HEIDENHAIN iTNC 530 HSCI Technical Manual

6.11.10 Momentary utilization of drive motors

918
Module 9166 provides the momentary utilization of the given drive motor as a
percentage value. The module provides the percentage of the drive's
mechanical power output that arrives at the tool.
Utilization means:
Speed range n
actl
Asynchronous or
synchronous motor
= n
If n , then:
actl N
M
P
curr
curr
=
P
M
rated
rated
Mcurr and Pcurr are ascertained cyclically by the current controller. This is
based on the equivalent circuit data of the motor and the present motor
current.
Prated = P-N from motor.mot
Nrated = N-N from motor.mot
P
rated
M
=
rated n
rated
2 · π ·
60
< n n
noml
⏐Mcurr⏐
⏐M ⏐
rated
HEIDENHAIN Technical Manual iTNC 530 HSCI
≥ n
act noml
⏐Pcurr⏐
⏐P ⏐
rated