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
n
nN
Pa
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
1
1.00
2
0.63
3
0.50
4
0.38
5
0.33
6
0.28
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.
Summary of Contents for DDS APS-24
Page 1: ...DRIVE DDS Hardware manual Ref 1912...
Page 6: ...6 Ref 1912 DDS HARDWARE 6 I This page intentionally left blank...
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Page 16: ...Ref 1912 DDS HARDWARE 16...
Page 20: ...Ref 1912 DDS HARDWARE 20...
Page 179: ...3 Drives Ref 1912 179 DDS HARDWARE...
Page 180: ...3 Drives Ref 1912 DDS HARDWARE 180...
Page 200: ...4 AUXILIARY MODULES Auxiliary modules Ref 1912 DDS HARDWARE 200...
Page 260: ...7 Cables Ref 1912 DDS HARDWARE 260...
Page 397: ...Sales models 12 Ref 1912 397 DDS HARDWARE 12 9 Order example F H12 21 Order example...
Page 404: ...13 Compatibility Ref 1912 DDS HARDWARE 404...
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