Fagor DDS PS-65A User Manual

Selection criteria
5.
224
Ref.1912
DDS
HARDWARE
· 212 ·
5.3 Power supply selection
Calculation of the power required from the power supply by the synchronous servo
motors
Initially, considering the mechanical power provided by the motors:
T. H5/5 Power supply selection depending on the Pa mechanical power output of the motor.
SYNCHRONOUS FXM/FKM
n
: Max. axis speed in the application (rpm)
nN: Motor rated speed (rpm)
Pa = Pcal·1.17· [n/nN] : Axis power (kW)Mechanical power
Axes
Pcal
nnNPa
kW
rpm rpm
kW
GROUP I
0 to 2 kW
Synchronous
1
2
3
Sum of GROUP I :
*
Ki

GROUP II
0 to 8.5 kW
Synchronous
1
2
+
3
Sum of GROUP II :
*
Kii

GROUP III
8.5 to 27 kW
Synchronous
1
2
+
3
Sum of GROUP III :
*
Kiii

=
SUM OF POWER (kW)
1
Nr of synchronous
motors per group
K
factor
11.00
20.63
30.50
40.38
50.33
60.28
where:
Pcal: motor power (kW) according to the motor
characteristics table.
1.17: coefficient that stores the efficiency of the
motor (0.90) and that of the drive (0.95).
The servo set is divided in groups depending on
their power by applying to each one a simultaneity
factor Ki, Kii, Kiii.

Fagor DDS PS-65A Specifications

General

Brand	Fagor
Model	DDS PS-65A
Category	DC Drives
Language	English