Stalled Rotor
Description
The stalled rotor condition occurs when the motor is in the Run state. The stalled rotor condition occurs due to overload or the load jam. The stalled rotor protection function is active only when the motor is in the Run state.
The stalled rotor protection function generates the following signals:
-
Alarm: Any of the three-phase currents of the motor goes above the alarm level during the motor Run state.
-
Trip: Any of the three-phase currents of the motor goes above the pickup level for the specified time delay during the motor Run state.
Parameter Setting
The stalled rotor protection function has the following configurable settings:
|
Parameter |
Setting range |
Default value |
|---|---|---|
|
Function |
|
Trip |
|
Pickup |
50–1000% of IFLC in step of 1% |
200% of IFLC |
|
Time Delay |
0.1–6000.0 s in step of 0.1 s |
2 s |
|
Alarm Level |
50–1000% of IFLC in step of 1% |
200% of IFLC |
|
Reset Mode |
|
DI + Reset Key |
|
Auto-Reset Delay (applicable only if Reset mode is Auto) |
0.0–6000.0 s in step of 0.1 s |
0 s |