Taylor-Dunn MB-238-00, Operation, T Roubleshooting And Replacement Parts Manual

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Sevcon Control System Troubleshooting
This troubleshooting guide is written in sequential order. All tests
must be performed in the order that they are written. Starting in the
middle or skipping sections when not instructed to do so may lead to
invalid test results.
TABLE OF CONTENTS
Test Equipment Required: ....................... 2
Important Notes and Instructions ........... 2
Definitions: .............................................. 2
Terminology used: ................................... 2
Start Troubleshooting Here ..................... 3
Test 8. Anti-Rolloff Fault ........................ 22
Test 9. Electric Motor Brake .................. 23
Sevcon Logic Voltage Reference Table ... 25
Status LED Code Table .......................... 26
Rev K
Turn the Key switch OFF BEFORE disconnecting the batteries.
Disconnecting the batteries with the key switch ON may corrupt the
controller programming resulting in a fault code 1 (refer to fault table).