Safety notes 
 
Control Units CU240S 
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD 
13 
CAUTION 
 
Children and the general public must be prevented from accessing or approaching the 
equipment! 
This equipment may only be used for the purpose specified by the manufacturer. 
Unauthorized modifications and the use of spare parts and accessories that are not sold or 
recommended by the manufacturer of the equipment can cause fires, electric shocks and 
injuries. 
 
NOTICE 
 
Keep this manual within easy reach of the equipment and make it available to all users. 
Whenever measuring or testing has to be performed on live equipment, the regulations of 
Safety Code BGV A2 must be observed, in particular § 8 "Permissible Deviations when 
Working on Live Parts". Suitable electronic tools should be used. 
Before installing and commissioning, please read these safety instructions and warnings 
carefully and all the warning labels attached to the equipment. Make sure that the warning 
labels are kept in a legible condition and replace missing or damaged labels. 
Transport and storage 
 
WARNING 
 
Correct transport, storage as well as careful operation and maintenance are essential for 
the proper and safe operation of the equipment. 
 
CAUTION 
 
Protect the equipment against physical shocks and vibration during transport and storage. It 
is important that the equipment is protected from water (rainfall) and excessive 
temperatures. 
Commissioning 
 
WARNING 
 
Working on the equipment by unqualified personnel or failure to comply with warnings can 
result in severe personal injury or serious damage to material. Only suitably qualified 
personnel trained in the setup, installation, commissioning and operation of the product 
should carry out work on the equipment. 
 
CAUTION 
 
Cable connection 
The control cables must be laid separately from the power cables. Carry out the 
connections as shown in the installation section in this manual, to prevent inductive and 
capacitive interference from affecting the correct function of the system.