gefran I3 Series Instruction Manual page 32

In diagram "B" (Figure 8) is shown a second possible configuration with the relay output: the sensor
detects the pressure and compares it with a fixed threshold set in the factory and not changeable by the
user; if the threshold is exceeded, the relay will change to normally open; the relay output is interfaced with
an enable input of the pressure generating elements motor drive; when the threshold is exceeded, the open
state of the relay stops the pressure generating elements.
Category and performance level
The device installed, used, operated and kept following the prescription of the present safety manual and in
the operating manual are compliant with:
32
Relay output
Figure 8 - Application diagram B
EN ISO 13849-1: 2006 Category 1 PL c
+24V
Enable
Motor drive
Pressure
generation
systems
80175G_MAN_I3-IE-IN-IX_I7_11-2018_ENG