Fire Fighting; Electrical Safety - YASKAWA iC9200 Series Operating Manual

General

Electrical safety

1.11

Fire fighting

1.12 Electrical safety
General
Installation and configuration
Note on power supply
16
DANGER
Risk of death by electric current!
Risk of an electrical shock when using a conducting fire fighting medium.
Therefore use the following fire fighting medium:
ABC powder / CO2
The safety CPU is designed according to IEC61131-2 for degree of pollution 2. This
means only non-conductive pollution may occur during operation. Temporary conductivity
by condensation is only allowed when the module is out of operation.
WARNING
Risk of injury from conductive pollution!
During the operation there is no conductive pollution allowed.
Therefore: Before the system is installed check and guarantee if necessary by additional
measures that the degree of pollution 2 is not exceeded (e.g. installation in a cubicle with
degree of protection IP54 or better).
WARNING
Incorrect installation and retrofitting can pose serious risks
−
Devices and their installations in the system must be designed according
to these requirements.
−
Existing plants and systems that are retrofitted must also be checked in
this regard.
WARNING
Risk of injury by electric current!
Only devices with safe insulation from the 230V mains may be connected to
the CPU. The power supply for generating the 24V power must correspond to
the requirements for PELV/SELV according to EN 50178.
WARNING
Hazardous shock currents and the loss of functional safety
Disregarding instructions for electrical safety may result in hazardous shock
currents and the loss of functional safety.
In order to ensure electrical safety, please observe the following points:
−
Direct/indirect contact
−
Safe isolation
HB700 | CPU | PMC921xEx | en | 24-04
iC9200 Series