Safety instructions – Lenze E82EV 8200 vector 0.25kW-2.2kW User Manual
Page 96
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Safety instructions
Thermal motor monitoring
l
96
EDK82EV222 DE/EN/FR 13.0
60
180
240
300
360
t [s]
0.5
0
0
1.0
1.5
2.0
C0054
I
r
120
f = 0 Hz
f = 20 Hz
f > 40 Hz
I x 100 %
I
r
N
C0120 <
I x 100 %
I
r
N
C0120 =
I x 100 %
I
r
N
C0120 >
8200vec523
f
Output frequency
t
Release time
I
N
Rated controller current at switching frequency 8 kHz
I
r
Rated motor current
C0054
Apparent motor current
Example:
C0120
+
I
r
I
N
@ 100 %
C0054 = 1.5 x rated motor current
The controller switches off at output frequencies f > 40 Hz with error OC6 after approx. 60 s.
Setting tips
ƒ To avoid an early response in the case of forced ventilated motors, deactivate the function, if
necessary.
ƒ The current limits C0022 and C0023 only have an indirect effect on the I
2
t calculation.
However, you can prevent the motor from being actuated at the maximum possible
utilisation by the settings of C0022 and C0023.
)
Note!
If the controller is actuated at an increased rated power, the I
2
t monitoring can respond
if C0120 is set to a smaller value than 100 %.