Lenze 8200 vector series, Mounting Instructions

Page: 96 / 250

Safety instructions
Thermal motor monitoring
2
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
+
Ir
IN
@
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%.