Rice Lake PR5230 Fieldbus Transmitter - Manual (Page 46)

Installing the Instrument and Plug-in Cards PR 5230 Instrument Manual
EN-46 Sartorius
4.2.8 Relay Outputs
The main board has 3 digital outputs for process control, electrically isolated by optocouplers, each bipolar
potential-free.
Number of outputs 3 (CH 1, CH 2, CH 3)
Output
Change-over contact
Max. switching voltage
Max. switching current
250 V AC
5.0 A
250 V DC
0.3 A
Electrical isolation Free relay change-over contact
Connection
Plug-in terminal block,
each with 3 pins,
conductor cross-section max. 1.5 mm
2
Component layout on the main board
In this option the jumper R320 …R325 are fitted on the main board.
R321 R323 R325 R324 R322 R320
4.2.8.1 Connecting Example: Relay control
The relay switches, when the output
is active (true). For protection of the
output circuit, relays with free-wheel
diode must be provided.
4.2.8.2 Connecting Example: Voltage output
When the output is active (true), the
output voltage goes from
24 V/12 V to 0 V.
The load resistance must be
2.2 k¥/1 k¥.