BOCK floorline 9.5 80, Assembly And Operation Manual, Page: 15 / 44

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3.3 The drives / lifting columns
Hermann Bock GmbH equips nursing care beds with various drive systems from the com-
pany's DewertOkin and Baumeister.
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. The design of the interior of the housing creates an essential prereq-
uisite for the precise mounting of the drive technology and particularly simple assem-
bly/disassembly due to its detailed internal design.
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