Emerson Tescom ER5000 Series, User Manual, Page: 99 / 248

ER5000 —
99
Installation Variations
Feedback Wiring Variations
4–20 mA External Feedback, Ground Referenced Input,
Feedback Signal Monitored by PC or PLC A/D Card
Figure 35 show how the feedback signal can be monitored
using an A/D card in the PC or a PLC. The feedback signal can,
alternatively, be monitored through the USB connection between
the ER5000 and the PC by reading variable #44 (ID_FEEDBACK).
TRANSDUCER
YELLOW
ORANGE
+ I IN
- I IN
BLACK
VIOLET
PC
+ SUPPLY
+ OUTPUT
Figure 35: Monitor 4–20 mA External Feedback (Ground Referenced Input)
WARNING
The controller must be disconnected from the power supply before
any additional wiring or change to jumper configuration is
performed. Do not reconnect the power supply until all additional
wiring connections have been made and are properly installed.
Refer to Table 18 to verify correct wiring.
Table 18: Wiring for Monitoring 4–20 mA External Feedback (Ground Referenced Input)
J3 Pins Wire Color Function
1 brown +setpoint input
2 red -setpoint input
3 orange +feedback input
4 yellow -feedback input
5 green -RS485 network connection
6 blue +RS485 network connection
7 violet +24V DC power
8 gray 24V return (power ground)
9 white +5V output (5 mA max.)
10 black analog signal/board ground
*
11
*
pink analog signal output
(active in Enhanced “F” models ONLY)
12 tan analog signal/board ground
NOTE NOTE
CAUTION CAUTION
WARNING WARNING
The wiring shown in Figure 35 is for a two wire
transducer. Refer to Figure 32 and Figure 33 , respectively, for
correct wiring of three wire and four wire transducers.
NOTE NOTE
CAUTION CAUTION
WARNING WARNING
Check that Jumper J6 (refer to Figure 19 ) is installed for
4–20 mA operation.