3
Unit structure
Function modules
Operating Instructions – MOVIPRO
®
PHC11A-..M1-..2A-A1/..
28
3.7.3 PFE... power supply
24 V power supply unit for internal components
The unit is equipped with an integrated power supply unit that uses the DC link voltage
to generate a DC 24 V supply for internal components.
24 V power supply unit for external supply
An integrated power supply unit uses the DC link voltage to generate a DC 24 V sup-
ply for externally connected components.
MOVITRANS
®
TPM30 passive mobile converter
Voltage is supplied to the mobile machine component via the MOVITRANS
®
system,
which enables contactless energy transfer. Energy is supplied inductively using the
MOVITRANS
®
components that contactlessly transfer and supply energy.
A line cable must be routed for the appropriate distance. The energy provided is then
absorbed by pick-ups. They are located on the vehicle and move along a permanently
installed line cable at a distance of several millimeters. The current flow of the line ca-
ble has an average frequency current of 25 kHz at 60/85 A. It creates current in the
pick-up units with a frequency of 25 kHz by magnetic coupling.
The TPM30 passive mobile converter supplies the DC link and the drive inverter di-
rectly. It converts the currents in the pick-ups to a DC voltage of around DC 400 – 800
V. A compensation capacitor at the input of the passive mobile converter forms a par-
allel resonance with the inductance of the pick-up. The pick-up acts as a constant cur-
rent source.
If several pick-ups are used, each circuit is established individually. They are only
combined after rectification. In this way, the pick-ups operate independently of each
other.
Supply system rectifier
Energy is supplied to the unit via a three-phase AC supply system and a line rectifier.
The rectifier supplies the DC link voltage.
20278543/EN – 09/2014
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