8 heatsink temperature, Heatsink temperature, Configuration – Lenze EVF9383 User Manual
Page 285: Monitoring heatsink temperature
Configuration
Monitoring
Heatsink temperature
8.3
8.3.8
l
8.3−7
EDSVF9383V EN 7.1−04/2012
Diagram for the determination of the release times of a motor with a
thermal motor time factor of 5 min:
I
= 3 × I
mot
r
0
50
100
120
0
100
200
300
400
500
600
700
800
900
1000
t [s]
I t [%]
2
I
= 2 × I
mot
r
I
= 1.5 × I
mot
r
I
= 1 × I
mot
r
9300std105
Fig. 8.3−2
I
2
× t−monitoring: Release times for different motor currents and trigger
thresholds
Imot
Motor current
I
r
Rated motor current
I
2
t
I
2
t load
T
Time
8.3.8
Heatsink temperature
Via a temperature threshold, the heatsink temperature of the controller can
be monitored:
ƒ Adjustable threshold (OH4) under C0122
– The reset point is 5° C below the adjusted threshold.
ƒ Fixed threshold (OH) = 85° C
– The reset point is at 80° C.
The response for exceeding the adjustable threshold can be set under C0582.
Reading the release time off
the diagram