User guide

82
FAULT MESSAGES
FAULT DESCRIPTION POSSIBLE CAUSES
 EXTERNAL Externalfault:TB-13Disopenorclosed ChecksettingofParameter
to TB-2, depending on setting of 50-TB13D.
  Parameter50-TB13D. Checkdeviceswiredbetween
TB13D and TB-2.
 DBERROR DynamicBrakefault:DBcircuithas TheDBdutycycleistoohigh,
sensed a resistor overload. causing the resistors to overheat.
CONTROL Control Board fault: New software has Perform a factory reset using
been installed that is different from the Parameter 65-PROGRAM.
previous version. This will update the software
and allow the fault to be reset.
INTERNAL Internal Fault: The microprocessor Electrical noise on control
 INTERN(#) hassensedaproblem. wiring.
Defective microprocessor.
FOLLOWER Loss of Follower Fault: 4-20 mA signal Parameter 55-TB5B LOSS is
at TB-5B is below 2mA. set to FAULT.
 BlankDisplayor Thepowersupplyhasshutdown. Checkheatsinkfans(ifequipped).
repeatedly flashes This can be the result of clogged or Clear any obstructions. If they
 TESTING failedheatsinkfans. arenotclogged,contactthe
 (drivewillnotrun)  LEESONServiceDepartment.