ABB LME620-AI User Manual page 24
Electronic unit for field installation for the control of contrac control actuators series pme, lme, rhd and rsd
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Also See for LME620-AI:
- Operating instruction (32 pages) ,
- Service instruction (30 pages) ,
- Instructions manual (15 pages)
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24
LME620-AI / PME120-AI / EAN823 / EBN853 / EBN861 ELECTRONIC UNIT | OI/PME/LME/EAN823/EBN853/EBN861-EN REV. E
... 6 Electrical connections
... Connection examples
Operation downstream from step controller
Contrac actuators can be driven using step controller pulses instead of an analog setpoint. The following conditions must be fulfilled
in order to implement the step controller pulses:
•
The binary inputs must be configured using the 'STEP CONTROLLER' function.
•
The binary input 1 must be connected with +24 V DC (automatic operation).
•
The 'AUT' operating mode must be selected through the graphic user interface.
+1 -2
Figure 16: Connection example for operation downstream from a step controller
DO 1
Release of
o.k./fault
controller
Controller
+3 -4 +5
-6
7
8
9
Contrac electronic unit
DO 2
DO 3
endpos.
endpos.
0%
100%
0/4 ... 20 mA
Uv
out
10
11 12 13 +14 -15
+26 -27
24V
Setpoint
+ HART
act. pos.
0/4 ... 20 mA
Transmitter
4 ... 20 mA
+28 29
+30 -31
RB
RB
+
-
+
-
Uv
24V
U
M10358
I
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