Selection criteria
5.
Ref.1912
· 217 ·
DDS
HARDWARE
Non-FAGOR asynchronous spindle motor
For non-FAGOR asynchronous spindle motors (e.g.: a high speed spindle)
the previous tables for standard FAGOR motors are not available.
To properly calculate the power demanded by the non-FAGOR
asynchronous spindle from the power supply, it is necessary:
To know the maximum power to be provided at the axis. Always use the
mechanical power for cycles S1 or S6-40% (depending on the duty cycle
of the applicaton).
Obtain the power at the motor terminals by dividing the previous value by
the efficiency of the motor.
If the value of the motor efficiency (eff) is unknown, apply the following rule.
For:
Divide the result by the efficiency of the drive.
NOTE. Never use the peak power!
P < 22 kW motor eff = 85% ( = 0.85)
P > 22 kW motor eff = 90% ( = 0.90)
drive eff = 90% (
= 0.90)
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