Lenze ECSDS Série Instructions De Montage page 84

2 Safety instructions
Thermal motor monitoring
Forced ventilated or naturally ventilated motors
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):
L [%]
120
100
50
0
0
Fig. 2−1 I
I
I
L
T
84
I = 3 × I I = 2 × I
Mot N Mot
100 200
2
× t−monitoring: Release times for different motor currents and trigger thresholds
Actual motor current (C0054)
Mot
Rated motor current (C0088)
r
2
I x t load of the motor (display: C0066)
Time
I = 1.5 × I
N Mot N
300 400 500
l
I = 1 × I
Mot N
600 700 80
9300STD105
EDKCSDX064 DE/EN/FR 3.0