Siemens SIWAREX WL270 CP-S SA Інструкція з експлуатації Посібник з експлуатації - Сторінка 22
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Installation
5.1 Safety information/instructions
CAUTION
Damage to load cells through high currents
If welding is undertaken after the load cells have been installed, ensure that the welding
Undesirable electrical currents can arise during lightning. To protect the load cell against
CAUTION
Damage to load cells through incorrect mounting
Provide indented claws or crane eyebolts on the load carrier to ensure that hoisting gear
Load cells must never be overloaded. Put the load carrier down slowly for this reason.
Adjust the existing overload protection to ensure that it can still reliably sense transfer of
Protect the gap above the overload protection from deposits of dirt and ice.
The load must be introduced in the measuring direction of the load cell. Torsional and
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current is not diverted through the load cells.
– You can do this by attaching the grounding clamp of the welding unit making reliable
contact close to the weld.
– Bridge the load cells with a ground cable, see Installing the grounding cable
(Page 27)
– Disconnect the individual load cells.
such currents, bridge the load cells using highly flexible grounding cables, see also
Installing the grounding cable (Page 27).
can be used safely.
With load cells of smaller rated loads in particular, there is a risk of stretching the load
cell bodies when attaching force transfer devices, e.g. when tightening locknuts.
the required load. The overload protection must permit a rise in weight unhindered until
the setpoint weight is reached.
bending moments, eccentric loads and transverse loads are disturbance variables.
These disturbance variables cause errors in the measuring result and can damage the
load cells and pressure piece sets if the maximum limits are exceeded.
The mounting components normally allow so much room for movement that heat
expansion will not result in lateral loading.
Operating Instructions, 11/2010, A5E03323543B
CP-S SB