Current Imbalance

The current imbalance protection function generates the following signals:

Alarm: Current imbalance goes above the alarm level.
Trip: Current imbalance goes above the pickup level for the specified time delay.

NOTE: Current imbalance protection function is not applicable in single-phase mode.

CAUTION
HAZARD OF MOTOR OVERHEATING The current imbalance pickup setting must be properly set to protect the wiring and motor equipment from harm caused by motor overheating. The setting you input must conform to national and local safety regulations and codes. Refer to the motor manufacturer’s instructions before setting this parameter. Failure to follow these instructions can result in injury or equipment damage.

CAUTION

HAZARD OF MOTOR OVERHEATING

The current imbalance pickup setting must be properly set to protect the wiring and motor equipment from harm caused by motor overheating.
The setting you input must conform to national and local safety regulations and codes.
Refer to the motor manufacturer’s instructions before setting this parameter.

Failure to follow these instructions can result in injury or equipment damage.

The current imbalance protection function has the following configurable settings:

Parameter	Setting range	Default value
Function	Disable Alarm Trip Alarm + Trip	Alarm + Trip
Pickup	5–100% in step of 5%	20%
Time Delay	0.1–6000.0 s in step of 0.1 s	5 s
Alarm Level	5–100% in step of 5%	20%
Reset Mode	Reset key DI Communication Auto	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