Lenze 8615E - Manual (Page 101)

7 Overload
7.1 Overload protection of the frequency
monitoring)
The frequency have an output current monitoring to
them against overload. You adapt this protection to the
maximum ambient temperature to be expected. The lower the max.
ambient temperature, the the limit of the permissible
continuous output current. The permissible continuous output
powes rises the same way.
Cl 19 and Cl20 you enter
three settings:
l
Rated power up to a maximum of 50°C
l
Increased power up to a maximum of 45°C
l
Maximum power up to a maximum of 40°C be activated
when using the units 8605, 8607, 8611, 8615)
the output current exceeds the set limit, a fault is indicated after
30 to 60 seconds (see page 148).
7.2 Overload protection of the motor
For motor protection, you use the PTC input
terminals 11, 12).
You use the input to connect a PTC thermistor or a thermal
contact. The motor monitoring is already activated by connecting
the monitoring circuit of the motor to terminals 11 and 12 (remove
wire bridge).
If the motor is overheated, you the monitoring of the
PTC input such that
l
no is released
l
TRIP is activated, see page 148
l
a warning is indicated, see page 150
Select the TRIP set-input by Cl 19 = and the
via (see page 82).
Code Name Parameter (Factoty setting printed in bold)
Acceptance
Digital input TRIP-Set SH + PRG
Monitoring PTC input
Output power monitoring)
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