Endress+Hauser promag 30 - Wiring diagrams

4.4 Wiring diagrams
Electrical connection: supply, inputs and outputs
Earth terminal (ground wire)
L1
}
for AC
L+
}
for DC supply
NL-
Pulse/frequency output
(passive)
Status output (passive)
Auxiliary input
Current output (active)
Earth terminal (screen of signal cable)
f
max
= 400 Hz
max. 30 V/250 mA
max. 30 V/250 mA
⇒
System/process fault indication
⇒
Flow direction
3...30 V DC, R
i
= 1.8 k
Ω
•
Measured value suppression
•
External reset for totaliser
0/4...20 mA
R
L
< 700
Ω
Fuse
Supply cable
Earth terminal for
ground wire
Earth terminal for
cable screen
Signal cable
ba008y30
Fig. 33
Promag 30 4. Electrical Connection
Endress+Hauser 29