Lenze E82EV 8200 - Manual (Page 96)

Safety instructions
Thermal motor monitoring
2
l
96 EDK82EV113 DE/EN/FR 11.0
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 %.