Jetter JM-108, User Manual, Page: 43 / 106

JetMove 108 7.1 Demands on the Power Supply Unit for Motor Operating Voltage
Jetter AG 43
7 Description of Connections
7.1 Demands on the Power Supply Unit
for Motor Operating Voltage
We recommend a power supply unit configuration consisting of
transformer, rectifier and charging capacitor (electrolytic capacitor).
Fig. 7: Configuration of the power supply unit for motor operating
voltage
The power supply unit can be configured with a 1- or 3-phase wiring.
The output of the power supply unit is rated at the output required by
the motor:
Output power P in Watt (W)
Torque M in Nm
Revolutions n in 1/min
Power dissipation P
Dissipation
in Watt (W)
The power supply voltage is rated at the required speed and torque:
Where:
Counter-EMF U
n
in Volt (V)
Back EMF constant K
E
in V*min/1000
Revolutions n in 1/min
Voltage U
M
generating the required torque at maximum RPM.
Rectifier
Bridge
Transformer
L1
N
PE
xyz
Line
Filter
Electrolytic
Capacitor
DC Link
Voltage
DC 48
P
M n
⋅
9 55
,
----------
P
Dissipation
+
=
U U
n
U
M
+ =
U
N
K
E
n
⋅
1000
-------------- =