Endress+Hauser RMS621 - Connecting Measuring Unit and Sensors

Wiring RMS621
14 Endress+Hauser
!
Note!
The current/PFM/pulse inputs or the RTD inputs in the same slot are not galvanically isolated.
There is a separation voltage of 500 V between the aforementioned inputs and outputs in various
slots. Terminals with the same second digit are jumpered internally (Terminals 11 and 81).
4.2 Connecting the measuring unit
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Caution!
Do not install or wire the device when it is connected to the power supply. Not conforming with
this can lead to the destruction of electronic components.
131 + 0/4 to 20 mA/pulse output 1 E bottom, rear (E IV) Current/pulse output 1
132 - 0/4 to 20 mA/pulse output 1
133 + 0/4 to 20 mA/pulse output 2 Current/pulse output 2
134 - 0/4 to 20 mA/pulse output 2
52 Relay Common (COM) A bottom, front (A III) Relay 1
53 Relay normally open (NO)
91 Sensor power supply ground Additional sensor power supply
92 + 24 V sensor power supply
L/L+ L for AC
L+ for DC
A bottom, rear (A IV)
Power supply
N/L- N for AC
L- for DC
Connection overview, top (inputs) Connection overview, bottom (outputs, interfaces)