
D9S001ES1-0101
3
Table of Contents
1 Product and Technical Label ............................................................................................................... 4
2 Technical Data and Symbols ............................................................................................................... 5
3 Theory of Operations ........................................................................................................................... 6
3.1 Undercarriage................................................................................................................................. 6
3.1.1 Bed lifting control (S6015663) ........................................................................................................ 6
3.1.2 Bed lowering control (S6015713) ................................................................................................... 6
3.1.3 Undercarriage with hydraulic columns ........................................................................................... 7
3.1.4 Castor control (S6015655) ............................................................................................................. 8
3.1.5 Castors ........................................................................................................................................... 8
3.1.6 Fifth Castor..................................................................................................................................... 9
3.2 Mattress support platform - 4 parts .............................................................................................. 10
3.2.1 Backrest control (S6015839, S6018773 (Wider deck)) ................................................................ 10
3.2.2 Thighrest and Calfrest control (S6015840, S6018800 (Wider deck))............................................11
3.3 Mattress support platform - 2 parts .............................................................................................. 12
3.3.1 Backrest control (S6015839, S6018773 (Wider deck)) ................................................................ 12
3.4 Siderails........................................................................................................................................ 13
3.4.1 Siderail lock with the possibility of unlocking from the feet part of the bed (S6015723).............. 13
3.4.2 Siderail lock with the possibility of unlocking from the feet and the head part
of the bed (S6015731, optional) ................................................................................................... 14
3.4.3 Types of siderails ......................................................................................................................... 15
3.5 Scale system LW20...................................................................................................................... 16
3.5.1 Battery module ............................................................................................................................. 17
3.5.2 Scale module................................................................................................................................ 18
3.5.3 Power adapter .............................................................................................................................. 19
3.5.4 Tensometers (weight sensors) ..................................................................................................... 20
3.5.5 Display module............................................................................................................................. 20
4 Bed diagnostics .................................................................................................................................. 21
4.1 Errors – Failure States ................................................................................................................. 21
4.1.1 „Pop-Ups“ ..................................................................................................................................... 21
4.1.2 Overview of error codes ............................................................................................................... 23
4.2 Visual signaling............................................................................................................................. 25
4.2.1 Mains connection status............................................................................................................... 25
4.2.2 Battery charge status ................................................................................................................... 25
5 Bed setting .......................................................................................................................................... 26
5.1 Service menu ............................................................................................................................... 26
5.1.1 Verification mode.......................................................................................................................... 27
5.1.2 Diagnostics of scales.................................................................................................................... 27
5.1.3 Enabling selection of weighing units (kg / lb) ............................................................................... 28
5.1.4 SW and HW versions of LW20 components................................................................................. 28
5.1.5 Factory zero setting...................................................................................................................... 29
5.1.6 Gravitational constant setting ....................................................................................................... 30
5.1.7 Scales calibration ......................................................................................................................... 32
6 Service Tools and Equipment............................................................................................................ 37
6.1 List of tools and equipment .......................................................................................................... 37