17
16
15
19
18
13
12
14
11
10
+
-
RHE 11
-
+
24 VDC
115 / 230 VAC
-
+
PE
21
20
22
N
L1
Um = 30 VDC
Um = 125 / 250 VAC
1 / 1
H.G.Rudolph
U. Hettrich
1
3
9
8
7
6
5
4
2
Wiring diagram RHE 11
standard (2 analog outputs)
E11W2A-E_v5_5
10.11.2014
common connection (0 Volt) for
frequency / pulses
digital output 1 (passive)
common connection (0 Volt) for
digital outputs
analog output 2 (active)
current loop : 0/4 - 20 mA
max. 470 Ohm
external voltage
max. 24 VDC
digital output (passive)
for mass flow rate
frequency / pulses
analog output 1 (active)
current loop : 0/4 - 20 mA
max. 470 Ohm
HART (optional)
+
-
R
Terminals Um Im
1 - 2 8,6 V 141 mA
3 - 4 7,4 V 29 mA
3 - 5 7,4 V 29 mA
6 - 7 7,4 V 29 mA
8 - 9 7,4 V 29 mA
Draw. - Rev.
Sheet
Project
Appr.
Drawn
Date
created / revised
Customer
RHE 11 terminalbox (I/O,power supply)
increased safety "e".
in
trin
sica
lly sa
fe
Attention:
The local normatives for devices in
the hazardous area have to be considered !
Please also consider the special conditions and rules in our field manual
and the respective advises.
Do not open cover of RHE 11, if powered.
Please consider the specified temperature of sensor cable.
Note:
Sensor connections (terminal 1 to 9) are intrinsically safe circuits.
In- and outputs (terminals 10 to 19) are galvanically isolated.
current (open col
le
ctor) m
a
x. 50 m
A
!
Cable integral part of RHE 11 - TYPE 1 and 3 - no terminals available.
Cable to be connected as on sensor side for RHE 11 - TYPE 2 and 4.
- or -
HT- SENSORS (High Temperature):
Screen to ground connection MUST
BE done. An additional potential
equalising cable is required (see Manual).
NT / ETx - Sensors:
please DO NOT connect !
Drive coils
Temperature
Sensor PT100
Mass Flow Meter
Sensor RHM xx
Pick-up coil 1
Pick-up coil 2
FIELD COMMUNICATION PROTOCOL
with option RS 422 / 485 :
(galvanically isolated)
RHE 11 PLC / Host
terminal 12 : TX + RX +
terminal 13 : TX - RX -
terminal 14 : RX + TX +
terminal 15 : RX - TX -
blue
yellow
grey
green
red
pink
white
brown
orange