EST EST3X - Using the SDU Signature Series Diagnostics Tools

Chapter 7: Service and troubleshooting
EST3X Technical Reference Manual 213
• The module/device is installed in the wrong location or is not addressed
correctly
• The module/device is not defined in the 3-SDU database
• An incorrect personality code was programmed into the module
• The jumper is in the wrong position
• 24 VDC for smoke power is low or missing
• Inputs 1 and 2 were switched
• There is a ground fault
• There is incorrect wiring
• There are mapping errors
• A short or open is detected on the output circuit
• The polarized device is installed in reverse
• There is an incorrect or missing EOL resistor
• The module/device is defective
Refer to “Using the SDU Signature Series diagnostics tool” for details on how to
identify and locate Signature module and device problems.
Using the SDU Signature Series diagnostics
tools
The System Definition Utility contains a Signature Series diagnostics tool that is
used to aid in isolating and correcting faults with the Signature data loop
detectors and modules.
Notes
• Try troubleshooting techniques described in “Understanding Signature data
loops” on page 198 before using the 3-SDU tool.
• Press F1 when using the 3-SDU, to open the Help topic for the page that you
are currently viewing.
To access the Signature Series Status / Diagnostics tool:
1. Connect the computer running the 3-SDU application to the panel that has the
Signature loop controller that is in trouble.
2. Configure the Remote Read Lock setting, if using an Ethernet connection
(see “Using a TCP/IP connection to read from the panel” on page 70).