Installation Instructions
Document No. 129-376
August 17, 2011
EA1089R1
499 Ω Resistor Assembly Kit
10 Inches
Figure 1. 499 Ohm Resistor Assembly.
Product Description
Product Number
The 499-ohm Resistor Assembly Kit is used to
convert a 4 to 20 mA controller output signal into a 2
to 10 Vdc actuator input signal.
985-124
Contents
Attach resistor between the signal and neutral leads
of the device.
Instructions
•
499-ohm resistor, 1/2 watt, ±1% tolerance,
metal film.
•
Two 5-inch (13 mm) 18 AWG stranded, PVC
insulated red wires (soldered to resistor).
•
Shrink tubing (applied over resistor and wire
connections).
Supply (+)
Supply
Controller
Control
Signal
24 Vac/dc
4 to 20 mA
499W
Resistor
Assembly
from Kit
985-124
1
Supply
Neutral
8
Input
2 to 10V
Actuator
Neutral
EA1090R1
2
Neutral (-)
Figure 2. Wiring Diagram for Converting 4 to 20 mA into 2 to 10 Vdc Signal.
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and
models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective
owners. © 2011 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089
USA
+ 1 847-215-1000
Your feedback is important to us. If you have
comments about this document, please send them
to sbt_technical.editor.us.sbt@siemens.com
Document No. 129-376
Printed in the USA
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