Motor Status
 WARNING |
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UNINTENDED EQUIPMENT OPERATION
When the motor current drops below 10% of IFLC, the LTMTCUF
control operator unit HMI displays 0. Make sure the motor is completely
in the STOP position before carrying out any maintenance activities.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
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The LTMT main unit defines the motor status based on maximum of three-phase current (IMAX) and full load current (IFLC) setting.
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Motor status |
Description |
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|---|---|---|
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Stop |
Motor stopped if IMAX < 10% of IFLC. |
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Start |
Motor starting if IMAX ≥ 10% of IFLC. |
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Run |
Motor running if IMAX goes above the Run threshold + 10% and comes below the Run threshold. Run threshold (RT) is a parameter of the Excessive start time function. |
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| A | Stop |
| B | Start |
| C | Run |
| D | Stop |
Heater Status
The LTMT main unit defines the heater status based on maximum of three-phase current (IMAX) and full load current (IFLC) setting.
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Heater status |
Description |
|
Stop |
Heater in Stop state if IMAX < 10% of IFLC. |
|
Start |
Heater in Start state if IMAX ≥ 15% of IFLC for 100 ms. |