Emerson Tescom ER5000 Series, User Manual, Page: 98 / 248

ER5000 —
98
Installation Variations
Feedback Wiring Variations
4–20 mA External Feedback, Floating Input, Feedback
Signal Monitored by PC or PLC A/D Card
Figure 34 shows 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
ORANGE
YELLOW
- I IN
+I IN
VIOLET
TAN
PC
+ O
U
TP
U
T
+ S
U
PPL
Y
Figure 34: Monitor 4–20 mA External Feedback (Floating 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 17 to verify correct wiring.
Table 17: Wiring for Monitoring 4–20 mA External Feedback (Floating 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
Check that Jumper J6 (refer to Figure 19 ) is installed for
4–20 mA operation.