When connecting the power cable to the mains supply, use an external fusethat complies with
the regulations applicable to the place of installation .
• Please check the type plate for details on the necessary voltage and
frequency for the device.
• Make sure the levels agree with the existing mains power supply.
• Use the supplied connection cable to connect the device to the mains power
supply.
• Make sure that the voltage and frequency of your mains connection
corresponds to that on the type plate.
– The mains connection must be fused to at least 16A.
– An electrical connection without protective earth PE is not permitted.
The drive of the device is equipped with a frequency converter. In order to satisfy the EMC
Directive, this is fitted with a mains filter and shielded cables to the motor. If your mains
connection includes a residual current protection device, the suppressor capacitor wiring of the
frequency converter when this is switched on (it is switched on by closing the grinding chamber
hood) can lead to accidental triggering of the residual current protection device without any error
being present on the device or in the mains installation.
In accordance with the state of the art, selective all current sensitive residual current protection
devices are recommended for such cases. The tripping current must be sufficiently
dimensioned because capacitive compensating current (shielded cable, mains filter) which only
occurs for a short time can easily lead to accidental triggering.
In certain circumstances, it may be necessary to operate the device without a residual current
protection device. It is then necessary, however, to check that this does not contravene the
local regulations of the electricity company or other institutions and the applicable standards.
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