Description of Function Codes
MD380 User Manual
- 206 -
Function Code Parameter Name Setting Range Default
F9-54
Frequency selection
for continuing to run
upon fault
0: Current running frequency
1: Frequency reference
2: Frequency upper limit
3: Frequency lower limit
4: Backup frequency upon abnormality
0
F9-55
Backup frequency
upon abnormality
0.0%–100.0% (maximum frequency) 100.0%
If a fault occurs during the running of the AC drive and the handling of fault is set to "Continue
to run", the AC drive displays A** and continues to run at the frequency set in F9-54.
The setting of F9-55 is a percentage relative to the maximum frequency.
Function Code Parameter Name Setting Range Default
F9-56 Type of motor temperature sensor
0: No temperature sensor
1: PT100
2: PT1000
0
F9-57 Motor overheat protection threshold 0–200e
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F9-58 Motor overheat pending threshold 0–200e
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extension card. AI3 on the extension card can be used for the temperature signal input.
The motor temperature sensor is connected to AI3 and PGND of the extension card. The
AI3 terminal of the MD380 supports both PT100 and PT1000. Set the sensor type correctly
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If the motor temperature exceeds the value set in F9-57, the AC drive reports an alarm and
acts according to the selected fault protection action.
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Function Code Parameter Name Setting Range Default
F9-59
Action selection at instantaneous
power failure
0: No action
1: Decelerate
2: Decelerate to stop
0
F9-60
Judging voltage of action disabled
at instantaneous power failure
80.0%–100.0% 90.0%
F9-61
Voltage recovery judging time at
instantaneous power failure
0.00–100.00s 0.50s
F9-62
Judging voltage of action at
instantaneous power failure
60.0%–100.0%
(standard bus voltage)
80.0%
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