Safety Instructions: Explosion-Proof Machines; Special Designs And Construction Versions; Special Conditions For Explosion-Proof Machines - Siemens SIMOTICS SD Operating Instructions Manual

2.5

Safety instructions: Explosion-proof machines

Note
The increased level of danger in hazardous areas demands that you pay particular attention
to the notes marked with
2.6

Special designs and construction versions

Note
Before carry out any work on the machine, determine the machine version.
If any deviations or uncertainties arise, contact the manufacturer specifying the type
designation and serial number (see rating plate) or have the equipment repaired by a
Siemens Service Center.
2.7

Special conditions for explosion-proof machines

Special conditions for the safe application of explosion-protected machines marked with X
(excerpt from the EC type-examination certificate, point 17)
Flameproof enclosure "d"
Flameproof joints may only be repaired strictly in accordance with the manufacturer's design
specifications. Repair in accordance with the values in Tables 1 and 2 of EN / IEC 60079-1 is
not permitted.
Zone 21
● Do not operate the motors with excessively thick deposits of dust.
● When the motors are mounted with the free shaft end pointing upwards, prevent foreign
● For motors with a fixed connecting cable: The free end of the cable must be connected
Low-voltage motors
Operating Instructions, 05/2014, 5 610 00000 02 000
bodies from dropping into the ventilation openings using an appropriate mechanical
design.
according to valid regulations for electrical installations.
2.5 Safety instructions: Explosion-proof machines
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Safety information
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