Siemens Simatic S7-400 - Notices on Use in Hazardous Areas According to FM; Installing and Connecting up the CP

Installation, connecting up, commissioning
3.2 Installing and connecting up the CP
CP 443-1 OPC UA
32 Operating Instructions, 01/2017, C79000-G8976-C427-02
3.1.5
Notices on use in hazardous areas according to FM
WARNING
EXPLOSION HAZARD
You may only connect or disconnect cables carrying electricity when the power supply is
switched off or when the device is in an area without inflammable gas concentrations.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-
hazardous locations only.
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.
WARNING
EXPLOSION HAZARD
The equipment is intended to be installed within an ultimate enclosure. The inner service
temperature of the enclosure corresponds to the ambient temperature of the module. Use
installation wiring connections with admitted maximum operating temperature of at least
30 ºC higher than maximum ambient temperature.
3.2
Installing and connecting up the CP
Rack / slots
The CP can be plugged into all racks with slots for P and K bus attachment.
With the exception of the slots reserved for the power supply, the CP can be operated in all
slots with a P and K bus attachment.
When using the universal rack UR1 or UR2 as an expansion rack, a communication bus
coupling is necessary!
Installing and connecting up the CP
Follow these steps:
Note
Note the installation guidelines
When installing and connec
ting up the CP note the instructions in the manual /3/ (Page 134).
1. Turn off the power supply to the station.
2. Fit in the CP onto the rack from the top and push in at the bottom.