Connecting; Safety Information And Guidelines - Siemens SIPLUS HCS Operating Instructions Manual

Connecting

6.1

Safety information and guidelines

Safety information
Hazardous voltages from the mains power input or heating element feeder cables
Will cause death, serious injury or damage to property
Dangerous voltages may be present on incoming lines from the supply and to heating
elements.
Before work starts on connecting the HCS4200 heating controller, the incoming supply and
heating element lines must be disconnected and secured against being switched on again.
Electric shock hazard
May cause death or serious injury
• Voltages of more than 60 V can occur in the control cabinet. Suitable safety precautions
• Before working on the heating control system or the connected components, ensure the
High levels of leakage current
Risk of injury
Before connecting the device to the supply system, you must connect the grounding circuit
(see Section Connecting the protective conductor (Page 46) ).
Connection requirements
● The device is installed.
● The incoming supply is disconnected at the mounting location of the device and secured
against being switched on again.
● The mains voltage is secured by an easily accessible isolating mechanism. It is
recommended that the external disconnecting means is located close to the device.
● The cables to be connected are not live.
SIPLUS HCS4200
Operating Instructions, 11/2015, A5E35066204A/RS-AA/002
WARNING
WARNING
preventing contact must therefore be taken during commissioning and maintenance
work.
system is disconnected.
CAUTION
6
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