nord NORDAC START Series, User Manual

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2 Assembly and installation
BU 0135 en-4118 47
2.4 Operation in potentially explosive environments
WARNING
Danger of explosion due to electricity
Electric sparks may ignite an explosive atmosphere.
• Do not open the device in an explosive atmosphere and do not remove any covers (e.g.
diagnostic openings).
• All work on the device must only be carried out with the power to the system switched
off .
• Wait for the required time (≥ 30 min) after switching off.
• Before starting work, check that all relevant components (voltage source, connection
cables, connection terminals of the device) are free of voltage using suitable measuring
equipment.
WARNING
Explosion hazard due to high temperatures
High temperatures may cause the ignition of an explosive atmosphere.
Temperatures may occur within the device and the motor, which are higher than the maximum
permissible surface temperature of the housing. Dust deposits may restrict the cooling of the
device.
• Clean the device at regular intervals to prevent the accumulation of impermissible dust
deposits.
• Do not open or remove the device from the motor in an explosive atmosphere.
With appropriate modification, the device can be used in certain potentially explosive areas.
If the device is connected to a motor and a gear unit, the EX labelling of the motor and the gear unit
must also be observed. Otherwise the drive must not be operated.