Drives; The External Switch Mode Power Supply Smps - BOCK practico alu plus Assembly And Operation Manual

3.3

Drives

Hermann Bock GmbH equips nursing care beds with drive systems from the company
DewertOkin GmbH.
Each drive consists always of four main components.
– Housing
– Motor
– Gear
- Spindle with nut
The housing principle of the individual drive guarantees the permanent function of all
drive components. Through a detailed interior structure, the construction of the housing
interior creates an essential prerequisite for the precise integration of the drive technol-
ogy, as well as a trouble-free assembly/disassembly.
3.4

The external switch mode power supply SMPS

The plug-in part of the external switch mode power supply (SMPS) is an electronic trans-
former, which warms up only to a minimum degree under load and it is equipped with
electronic performance monitoring. The result is a constant voltage up to the maximum
load (no loss of speed) and a high level of protection against overloading. The external
transformer ensures safety right from the socket because it converts the voltage directly
into the 29V safety low-voltage which is used to actuate the bed. It is connected via plug
coupling to the mains supply line feeder cable and can be replaced separately if defective.
The plug-in part of the external switch mode power supply complies with the European
directives for electrical household appliances. In standby mode, it also has a low energy
consumption of maximum 0.5 Watt and can be used internationally with variable input
voltages from 100 V to 240 V. Electromagnetic alternating fields are not measurable on
the SMPS adapter.
The external switch mode power supply
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