Lenze Global Drive 8200 vector Instructions De Montage page 96

2 Safety instructions
Thermal motor monitoring
I x 100 %
C0120 < r
I
t [s]
360
300
240
180
120
60
0
0
f Output frequency
t Release time
I Rated controller current at switching frequency 8 kHz
N
I Rated motor current
r
C0054 Apparent motor current
Example:
C0120 +
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
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
if C0120 is set to a smaller value than 100 %.
96
I x 100 %
C0120 = r
I
N N
f = 20 Hz
f = 0 Hz f > 40 Hz
0.5 1.0
I
r
@ 100 %
I
N
I x 100 %
C0120 > r
I
N
1.5
l
2.0 C0054
I
r
2
t calculation.
2
t monitoring can respond
EDK82EV222 DE/EN/FR 13.0
8200vec523