Overvoltage Thresholds

Default value

• Dropout: 110% of the rated voltage.

• Pickup: 105% of the rated voltage.

Range

• Range for falling voltage (dropout) is 105%–135% of the rated voltage.

• Range for return voltage (pickup) is 100%–105% of the rated voltage.

Adjustable

The adjustable step for an overvoltage threshold is 1%.

Differential

• The default differential between dropout and pickup is equal to 2% of rated voltage.

On LCD display

• If minimum 2% differential of rated voltage in default rule is broken during dropout setting, the pickup value will be modified (pickup=dropout–2%) to keep the rule.

On Modbus

The dropout value is always accepted. The pick-up value will be modified to a value (pickup=dropout–2%) when the pick-up value does not comply the minimum differential.

Sequence of events

• When a sensor detects a voltage below the dropout set voltage, for a period longer than the time delay, it will deem the voltage for out of range.

• When a sensor detects a voltage at or above the pickup voltage, it will deem the voltage as acceptable.