Connect The Sensors Electrically To The Controller - ProMinent DULCOMARIN 3 Compact Assembly And Operating Instructions Manual

Assembly and installation

6.3.7 Connect the sensors electrically to the controller

56
The switching-off process can be investigated and documented
using an oscilloscope. The voltage peak at the switch contact
depends on the selected RC combination.
Fig. 32: Switching-off process shown on the oscillogram.
Fig. 33: RC protective circuit for the relay contacts
Typical AC current application with an inductive load:
1) Load (e.g. alpha motor-driven pump)
n
2) RC-protective circuit
n
– Typical RC protective circuit at 230 V AC:
[0.22µF/X2]
– Capacitor
[100 Ohm / 1 W] (metal oxide (pulse resistant))
– Resistance
3) Relay contact (XR1, XR2, XR3)
n
User qualification, electrical installation: electrical technician, see
Ä Chapter 1.5 'User qualification' on page 10
Pre-assembled coaxial cable
If possible, use only pre-assembled coaxial cables,
which you can select from the product catalogue.
Coaxial cable 0.8 m, pre-assembled.
–
Coaxial cable 2 m, SN6, pre-assembled.
–
Coaxial cable 5 m, SN6, pre-assembled.
–
A0842
A0835