BaseStation 3200 User Manual - Baseline Systems

C h a p t e r 4 – T r o u b l e s h o o t i n gTwo-wire – High Current or ShortedThe first step in troubleshooting the two-wire is to isolate what works from what does not work.A complex system with many branches in the two-wire path can be difficult to troubleshootwhile everything is interconnected. Once a short can be isolated to a single segment of the twowiresystem, or to a single component, it becomes much easier to fix the problem.This process will mean physically disconnecting two-wire segments and components from thesystem in a logical manner. This allows for us to add back two-wire segments and componentsone at a time in order to isolate the problem.Begin by disconnecting half of the two-wire.Next check to see if the system is running properly with just half of the two-wireconnected. If it is we know the short is with the other half of the two-wire. If it doesnot we know the problem is with the connected half of the two-wire.Once the short has been isolated to one half of the two-wire you can start breakingconnections, one at a time, in order to isolate exactly where the problem is.Once the short has been isolated you need to find out what changed recently thatmay have caused the problem.Is there the possibility of lightning damage?Any recent work done on the site that could have damaged the buried wire?Etc…If there is no apparent damage to the two-wire start disconnecting devices, one at atime, from the shorted segment until the problem is fixed.Once the short has been isolated as either damage to the wire or a faulty device,repair or replace it.Connect components on the newly corrected two-wire segment. Verify that thatadding these components does not cause additional failures.Connect other two-wire segments, verifying correct operation as each is connected.Lost devices | No ResponseBegin by walking the two-wire and checking for what has changed that may have caused thecommunication errors.Is there just one communication error or is there a group of them?If there is more than one, are they all on the same wire? The same physical area?If this is the case check the connections and wiring in that area of the biLine.Repeat as necessaryMessages | AlertsBefore you begin troubleshooting a problem, run a “Test All” from the Self-Test dial position.Once a “Test All” has been run rotate the dial back to Auto/Run and access the MessageSummary Screen. There are dozens of messages that attempt to explain the detected conditionand provide some steps that can fix the most common causes of the condition.As you approach problem solving situations, separate problems into two major categories: 1) ithas never worked, or 2) it worked before and now it doesn’t. In case two find out what haschanged as this might provide some insight or a place to start looking for problems.Page 53Baseline 3200