Siemens SIWAREX WL270 CP-S SA Operating Instructions Manual - Page 13
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Application planning
4.1
Load cell dummies
Principle of operation
Load cells are sensitive sensors. To protect the load cells from becoming damaged during
installation and transport, the load cells should only be installed at the last minute. During
installation and transport, the load cells should therefore be replaced by space holders, so-
called dummies or phantoms.
Dummies might be designed as follows:
● A copy of the installation unit by means of a welded construction for installation work
● Use of a SIWAREX WL270 compact installation unit
A copy of the installation unit by means of a welded construction
A piece of pipe or some other steel profile is welded between two plates with the hole pattern
for the fixing screws. Installation work can be carried out with the welded construction.
Use of a SIWAREX WL270 compact installation unit
The compact installation units are delivered pre-assembled. Compact installation units are
set to the installation height of the operational unit. With compact installation units, light
installation work can be carried out.
4.2
Lifting protection
The following figure shows a proposed solution for lifting protection. The X designates the
possible lifting path of the load bearing implement. The bore ØD must be larger than the
diameter of the bolt Ød. The movement of the load bearing implement must not be hindered.
Figure 4-1
CP-S SA
Operating Instructions, 04/2009, A5E02522341B
Proposed solution for lifting protection
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