Delta RMC70 - Page 40

RMC70 Startup Guide
38 Delta Computer Systems, Inc.
12-
pin Axis
Connector
+Analog In
Jumper for 4-20 mA
-Analog In
Cmn
+10Vdc Exciter
Case
Potentiometer
Wiper
12-pin Axis
Connector
+Analog Out
Power Supply
+24 VDC
Cmn
+Analog In
Jumper for 4-20 mA
-Analog In
Cmn
+10Vdc Exciter
Case
+Pwr
AA Module Potentiometer with Exciter Pin
Note: When using a potentiometer, use the Exciter pin to increase the
accuracy of the analog to digital conversion.
AA Module 4-20 mA
To reduce electrical interference:
• The connection of -Analog In to Cmn should be
made as close as possible to the transducer.
• Use individually shielded twisted-pair wire.
• Connect cable shield to ground on one end only.
The Jmpr and -In pins are internally
connected via a 250 Ω resistor.
To reduce noise, use individually
shielded twisted-pair wire.