Function library
Monitorings
9.3.3 Monitoring functions
9-235
L
EDSVS9332S-D11 EN 3.0
9.3.3.13 Heatsink monitoring OH (fixed)
Purpose
Controller protection
MONIT
TEMP--COOLER
MONIT--OH
C0061
85 °C
Fig. 9-181 Heatsink monitoring OH
Signal
Source Note
Name Type DIS DIS format CFG List Lenze
TEMP-COOLER - C0061 dec - - - cannot be reassigned
MONIT-OH d - - - - - -
Function
The signal OH is derived from a comparator with hysteresis. The switch-off threshold is 85°Candis
fixed. The hysteresis is also fixed and amounts to 5K, i.e. the reclosing point is 80°C.
Features:
z LECOM no.: 50
z Reaction: TRIP (cannot be modified)
Tripping can have the following causes:
z The ambient temperature is too high.
Remedy:
– Install a fan into the control cabinet.
z The controller is overloaded in its arithmetic mean, i.e. overload and recovery phase exceed
100 %.
Remedy:
– Reduce overload phase
– Use more powerful controller
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