Lenze EDK71MMXXX−010 - Manual (Page 84)

5
Electrical installation
Important notes
EDK71MMXXX−010 DE/EN/FR 5.0
L
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Danger!
l All power connections (terminal strip X1) can carry dangerous electrical
voltages if the starttec is connected to the mains. For this reason,
de−energise the starttec before beginning to work on it or opening the
housing.
−21−
l All control terminals feature only basic insulation (single isolating
distance) after the connection of a PTC thermistor (PTC) or a thermal
switch (NC contact):
– Protection against accidental contact with defective isolating distance
can only be ensured through external measures, e.g. double insulation.
)
Note!
Operation with motors < 250 W or with motor currents < 1 A in all
operating modes
The starttec is designed for motor powers of 250 W ... 4 kW or motor
currents of 1 A ... 9.5 A.
The following must be observed if you operate motors on the starttec with
powers < 250 W or rated currents < 1 A:
l The internal I 2 xt monitoring cannot be used due to the low current:
– Switch off the internal I 2 xt monitoring (C0121 = 0).
– Monitor the motor temperature with a PTC or thermal contact (NC
contact)
– In addition you can use suitable external motor protection switches.
l During operation, the mains phase failure detection may respond
although no mains failure has occurred.
– Adjust the mains phase failure detection to "warning" (C0122 = 1) so
that the drive does not switch off with an error message.