Configuration
7-252

SHB9300CRV EN 2.0
7.7.3.4 Heatsink monitoring OH4 (adjustable)
Purpose
Controller protection
This monitoring is designed as a warning before the disconnection of the controller via theOH-TRIP.
Thus, the process can be influenced to avoid a switch-off of the controller at an inconvenient time.
For example, blowers which would cause an inacceptable noise in continuous operation, can also
be triggered.
MONIT
TEMP-COOLER
MONIT-OH4
C0061
C0122
Fig. 7-197 Heatsink monitoring OH4 with adjustable threshold
Signal
Source Note
Name Type DIS DIS format CFG List Lenze
TEMP-COOLER - C0061 dec - - - cannot be reassigned
MONIT-OH4 d - - - - - -
Function
The signal OH4 is derived from a comparator with hysteresis. The threshold can be set under code
C0122. The hysteresis is fixed and amounts to 5 K. The signal is thus reset below a threshold of 5
K.
Features:
l
LECOM no.: 2054
l
Reaction: WARNING or OFF
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