Mammoth COMMERCIAL II Series, Инструкция по эксплуатации

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Mammoth Fans COMMERCIAL II SERIES |
21
20
TROUBLESHOOTING TROUBLESHOOTING
Code Desc. Reason Solution
E.SPD
Rapid failure
Controller application Seek technical support from manufacturer
Improper setting of relevant
parameters for rapid detection Adjust rapid detection threshold and F10.45
(rapid detection time)
Fan fault
Make sure that the fan is running normally.
If not, replace the fan and start up again
Note: the percentage of output motor speed relative to F01.10 (maximum frequency) is greater than F10.44 (rapid detection
threshold), and the fault is reported after continuous F10.45 of rapid detection time. By F10.43 (the rapid protection action),
the fault detection and the motor operation mode can be set when the fault is detected.
Code Desc. Reason Solution
E.TExx
Self-learning
failures
The output current of the
controller exceeds the
upper and lower limits Check if the motor connection is correct, reset and
retry self-learning. If the error still occurs, contact
the Mammoth Fan support team.
Note: where “xx” is self-learning faults ub code.
Code Desc. Reason Solution
E. oUxx
Mid
acceleration/
moderate/
midspeed/
stop/over
-voltage fault
High voltage Reduce the supply voltage to a specified range
Controller output or motor
short circuit
Check main circuit wiring, eliminate short circuit
Too short acceleration/
deceleration time
Determine whether the acceleration stops. The fault
detection increases F01.22 (acceleration time 1)
increases F01.23 (deceleration time 1)
Overvoltage suppression of
frequency rise may result in
accelerated overvoltage fault
Increase overvoltage suppression gain F10.13
Over-current suppression
of frequency-lowering
overvoltage fault
Decrease overcurrent suppression gain
F10.02 and reduce load
Surge voltage mixed
with input voltage
Add reactor to input side
Improper setting of speed
tracking parameters
Change of speed tracking parameter (F07.25~F07.28)
Note: this fault is detected when the bus voltage exceeds the overvoltage point. Three phase input overvoltage point is 820 V,
single-phase input overvoltage point is 400 V.