Electrical Connection; Terminal Layout - Endress+Hauser RTA421 Mode D'emploi

Contactor

3. Electrical connection

3.1 Terminal layout

Analogue input with loop power supply
Terminal layout
L/L+ L for AC
N/L- N for AC
81 + 24 V loop power connection
11 Signal ground Current, Voltage
15 Meas. signal
16 Meas. signal
41 Normally closed contact
42 Common
43 Normally open contact
51 Normally closed contact
52 Common
53 Normally open contact
28
Relay 1
Power supply
+ for DC
- for DC
Voltage 0/2...10 V
Current 0/4...20 mA
Relay 2
51 52 53
41 42 43
11 15 16 81
L/L+ N/L-
In and outputs
Power supply
Loop power supply
(option)
Input measurement
signal
Relay output 1
Relay output 2