LEESON Micro Series Compact Inverters - Manual (Page 84)

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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.