Emheater EM12 Series, User Manual

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5.Description of Function Codes EM12 User's Manual
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to normal.

If bb-21 = 2, when instantaneous power failure or sudden voltage dip, the frequency inverter decelerates to
stop.
Diagram 5-24 Frequency inverter action diagram of instantaneous power failure
bb-25
Type of motor temperature sensor Default 0
Setting
Range
0 No temperature sensor
1 PT100
2 PT1000
bb-26
Motor overheat protection threshold
Default
110.0%
Setting Range
0°C~200°C
bb-27
Motor overheat pre-warning threshold
Default
90.0%
Setting Range 0°C~200°C
The signal of the motor temperature sensor needs to be connected to the optional I/O extension card. This card is an
optional component. PG cardalso can be used for the temperature signal input with motor over-temperature
protection function. Please contact with manufacturer or distributors.
The PG card interface of the EM12 supports both PT100 and PT1000. Set the sensor type correctly during the use.
You can view the motor temperature via parameter U0-34.
If the motor temperature exceeds the value set in bb-26, the frequency inverter reports an alarm andacts according to
the selected fault protection action.
If the motor temperature exceeds the value set in bb-27, the DO terminal offrequency inverter set with motor overheat
warning becomes ON.