Preparations for use
4.4 Realizing operation in the explosion-protected zone
Installation and Operating Instructions SINAMICS G180
80
Operating Instructions, 02/2019, 4BS0751-007
If the application requires category C3 limits (Class A Group 2 acc. to EN 55011, whereby
these limit values lie below those of Class A Group 1), then the following note applies:
Note
For units in category C3 the following applies:
"This product is not suitable for connection to a public low-voltage grid, which supplies
residential buildings. When connected to a public low-voltage grid, high frequency
interference can be expected."
4.4
Realizing operation in the explosion-protected zone
Converters in hazardous zones
WARNING
Explosion hazard
If you operate the converter in hazardous zones, explosions can occur which cause
property damage, serious injuries or death. Only operate the converter in safe, non-
hazardous areas.
Motor in the Ex-Zone
Motors connected to the converter can be operated in the hazardous zone. Also observe the
following conditions:
●
Ensure that the motor is approved for converter operation and that it has a corresponding
rating plate for converter operation.
●
Ensure that the motor is approved for the Ex-Zone. Also check the motor rating plate.
●
Ensure that the motors are equipped with PTC sensors according to DIN 44081 or
DIN 44082 as well as IEC 60034-11-2 Type A (EN 60947-8 and VDE 0660-303). Connect
these PTC thermistors to the peripheral board -X3:90 to 94. This is how you protect the
motor against an inadmissible temperature rise due to overload according to
DIN EN 60079-14/ VDE 0165-1 and EN 50281-1-1 (dust EX).
●
Observe the safety regulations for use concerning motors in the Ex-Zones e or d.
Directives 94/9/EG and EN 60079-14 regulate this use.
●
Ensure that the motor is now only operated in the intended speed control range. Under
"P-MOTOR DATA" and "P-DRIVE DATA" enter the values stated on the motor rating
plate for "fmin" and "fmax".
