LEESON Micro Series Compact Inverters User Manual
Page 84
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.