Safety instructions – Lenze ECSEAxxx User Manual
Page 79
Safety instructions
Thermal motor monitoring
Forced ventilated or naturally ventilated motors
l
79
EDKCSEX064 DE/EN/FR 6.0
Read release time in the diagram
Diagram for detecting the release times for a motor with a thermal motor time
constant of 5 minutes (Lenze setting C0128):
I
= 3 × I
Mot
N
0
50
100
120
0
100
200
300
400
500
600
700
80
L [%]
I
= 2 × I
Mot
N
I
= 1.5 × I
Mot
N
I
= 1 × I
Mot
N
9300STD105
Fig. 2−1
I
2
× t−monitoring: Release times for different motor currents and trigger thresholds
I
Mot
Actual motor current (C0054)
I
r
Rated motor current (C0088)
L
I
2
x t load of the motor (display: C0066)
T
Time