Avatar Protection Alarms

An avatar protection alarm is a less-serious, though still undesirable, operating condition. An alarm indicates that corrective action may be required to help prevent a problem condition from occurring. If left unresolved, an alarm may lead to a trip condition. Alarm-related parameters can be configured for most protection functions.

Thermal Overload Alarm
	The Thermal Overload protection function is based on a motor thermal model using phase currents as inputs. If enabled, this function triggers an alarm when the motor capacity used exceeds the percentage set in the Overload Alarm Level parameter.

Jam Alarm
	The Jam protection function detects when a motor is jammed during the Run state, and it either stops, or is suddenly overloaded and draws excessive current. If enabled, this function triggers an alarm when the maximum phase current (Imax) exceeds the specified Jam Alarm Level parameter value.

Undercurrent Alarm
	The Undercurrent protection function detects unexpected low current consumption during the Run state. This condition is typically associated with motors running free, without a load for instance, if a drive belt or shaft has broken. If enabled, this function triggers an alarm when the average phase current remains below the specified Undercurrent Alarm Level parameter value.

Overcurrent Alarm
	Avatars with Overcurrent Alarm enabled signal an Overcurrent Alarm if the maximum phase current exceeds the Overcurrent Alarm Level in the motor Run state.

Phase Unbalance Alarm
	The Current Phase Unbalance protection function only applies to three-phase installations. If enabled, this function triggers an alarm when the current phase unbalance exceeds the specified Current Phase Unbalance Alarm Level parameter value.

Ground Current Alarm
	The Ground Current Detection protection function detects ground currents indicating contact between an energized conductor and ground or the equipment frame. If enabled, this function triggers an alarm when the ground current exceeds the specified Ground Current Alarm Level parameter value.

Motor Overheat Alarm
	The Motor Overheat protection function is only available for avatars whose Temperature Sensor Available parameter is activated. These avatars include an analog I/O module that is wired to the temperature input from a temperature sensor associated with the protected motor. If enabled, this function triggers an alarm when the motor temperature exceeds the percentage set in the Overheat Alarm parameter.