Rain Bird ESP-LXD - System Diagnostics

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ESP-LXD 2-Wire Decoder Control System Installation & Troubleshooting Guide
ESP-LXD 2-Wire Decoder Control System Diagnostics
The ESP-LXD Controller includes multiple diagnostic functions to help you troubleshoot and
pinpoint the source of a problem. Refer to section C / Systems Diagnostics in the ESP-LXD Controller
Installation, Programming & Operation Manual for step-by-step instructions to use the diagnostic
features.
Tools and equipment
An accurate “as-built” showing wire path and decoder locations, the number and type of the
decoders on each wire path, and decoder addresses
Filled out ESP-LXD Controller Programming Guide with decoder addresses and station/MV/
sensor assignments
A Volt/Ohm Meter (multi-meter) capable of reading 0 to 50 volts AC/DC and resistance from 0 to
1,000,000 Ohms
A Clamp Meter for measuring AC current with a precision of 1.0 mA (milliamp).
Wire tracing and fault finding equipment
Spare system components and tools including: spare FD-Series Decoders, SD-210 Sensor
Decoders, 3M DBR/Y-6 wire splice kits, wire strippers, DPU-210 Decoder Programming Unit
(optional)
Calculating the total system mA (milliamp) draw
Each single address FD-Series Field Decoder (FD101, FD102) draws 0.5mA
Each multi-address FD-Series Field Decoder (FD202, FD401, FD601) draws 1.0 mA
Add up the total decoders of each type for each wire path and calculate the wire path mA draw
Add the mA for each wire path together for the total system mA draw
Types of field wiring issues
Broken wire
Short circuit
Ground fault
Notes
• Amajorityoffieldwiringissuesarecausedbypoorwiresplices!Useonly3MDBR/Y-6Wire
Splice Kits. All splices should be made in splice boxes.
• Ifthe2-WirePathisLooped,disconnecttheloophalfwayoutbeforetroubleshooting