TDE MACNO MINIOPD EXP, User Manual

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6 ALARMS
6.1 MAINTENANCE AND CONTROLS
The drive has a range of functions that cut in if there is a fault in order to prevent damage to both the
drive and the motor. If a protection switch cuts in, the drive output is blocked and the motor coasts.
If one or more of the protection switches (alarms) cut in, they are signalled on the displays, which
start to flash and to show a cycle of all the alarms triggered (the 7-segment display shows the alarms
that have been set off in hexadecimal).
Should the drive malfunction or an alarm be triggered, check the possible causes and act
accordingly.
If the causes cannot be traced or if parts are found to be faulty, contact TDE MACNO and provide a
detailed description of the problem and its circumstances.
The alarm indication are divide in 16 categories (A0÷A15) and for each alarm can be present code to
identify better the alarm (AXX.YY)
6.1.1 MALFUNCTIONS WITHOUT AN ALARM: TROUBLESHOOTING
MALFUNCTION POSSIBLE CAUSES CORRECTIVE ACTION
Motor does not run
RUN command not given Check operating status of input I00
Terminals L1, L21 and L3 are not
wired properly or the power
voltage is disabled
Ensure wiring is correct and check mains and
motor connection
Check any contactors upstream and
downstream of drive are closed
Motor does not turn
Terminals U,V and W are not
wired properly
An alarm has been triggered See following paragraph
Parameters programmed
incorrectly Check parameter values via the programming
unit and correct any errors
Motor direction inverted Wrong Positive direction Invert positive speed rotation setting C76=1.
Speed reference value inverted Invert reference value
Motor revolutions cannot
be regulated
No reference signal
Check wiring and apply reference signal if not
present
Excessive load Reduce motor load
Irregular motor
acceleration and braking
Acceleration – deceleration
time/times is/are too low
Check parameters and change if necessary
Load too high Reduce load
Number of motor
revolutions too high or
too low
Rated motor speed, minimum or
maximum speed, offset, or
reference gain value are set
incorrectly
Check parameters and compare setting with
motor rating plate
Excessive load Reduce load
Motor does not turn
smoothly Motor load changes a lot or
displays excessive load points
Reduce load points.
Increase motor size or use a larger frequency
drive