Protection Function Screens

Ir: Long-time protection pickup value setting for the phases

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

Ir(IN): Long-time protection pickup value setting for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

A

The up arrow indicates the Ir function.
The down arrow indicates the neutral.

tr: Long-time protection time delay value (at 6 Ir)

s

The up arrow indicates the tr function.

Isd: Short-time protection pickup value setting for the phases

A

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

Isd(IN): Short-time protection pickup value for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

A

The up arrow indicates the Isd function.
The down arrow indicates the neutral.

tsd: Short-time protection time delay value

The time delay is associated with the I²t inverse time curve protection function:

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tsd function.

Ii: Instantaneous protection pickup value setting for the phases and for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

A

The up arrow indicates the Ii function.
The down arrows indicate the 3 phases.

Neutral status (3-pole trip unit with ENCT option):

• N: Neutral protection active

• noN: Neutral protection not active

–

–

Ir: Long-time protection pickup setting for the phases

Preset by a dial

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

tr: Long-time protection time delay setting

s

The up arrow indicates the tr function.

Isd: Short-time protection pickup setting for the phases

Preset by a dial

Isd/Ir

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

tsd: Short-time protection time delay setting

Activation of the I²t inverse time curve short-time protection

• ON: I²t function active

• OFF: I²t function time curve not active

s

The up arrow indicates the tsd function.

IN: Protection pickup setting for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

IN/Ir

The down arrow indicates the neutral.

Ii: Instantaneous protection pickup value setting for the phases and for the neutral (4-pole or 3-pole trip unit with ENCT option and active neutral protection)

Ii/In

The up arrow indicates the Ii function.
The down arrows indicate the 3 phases.

Activation of neutral status (3-pole trip unit with ENCT option)

• N: Neutral protection active

• noN: Neutral protection not active

–

–

Ir: Long-time protection pickup value for the phases

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

Ir(IN): Long-time protection pickup value for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

A

The up arrow indicates the Ir function.
The down arrow indicates the neutral.

tr: Long-time protection time delay value (at 6 Ir)

s

The up arrow indicates the tr function.

Isd: Short-time protection pickup value for the phases

A

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

Isd(IN): Short-time protection pickup value for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

A

The up arrow indicates the Isd function.
The down arrow indicates the neutral.

tsd: Short-time protection time delay value

The time delay is associated with the I²t inverse time curve protection function:

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tsd function.

Ii: Instantaneous protection pickup value setting for the phases and the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

A

The up arrow indicates the Ii function.
The down arrows indicate the 3 phases.

Ig: Ground-fault protection pickup value

A

The up arrow indicates the Ig function.
The down arrows indicate the 3 phases.

tg: Ground-fault protection time delay value

The time delay is associated with the I²t inverse time curve protection function:

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tg function.

Neutral status (3-pole trip unit with ENCT option):

• N: Neutral protection active

• noN: Neutral protection not active

–

–

Ir: Long-time protection pickup setting for the phases

Preset by a dial

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

tr: Long-time protection time delay setting

s

The up arrow indicates the tr function.

Isd: Short-time protection pickup setting for the phases

Isd/Ir

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

tsd: Short-time protection time delay setting

Activation of the I²t inverse time curve short-time protection

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tsd function.

IN: Protection pickup setting for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

IN/Ir

The down arrow indicates the neutral.

Ii: Instantaneous protection pickup value for the phases and for the neutral (4-pole or 3-pole trip unit with ENCT option and neutral protection active)

Ii/In

The up arrow indicates the Ii function.
The down arrows indicate the 3 phases.

Ig: Ground-fault protection pickup setting

Preset by a dial

Ig/In

The up arrow indicates the Ig function.
The down arrows indicate the 3 phases.

tg: Ground-fault protection time delay setting

Activation of the I²t inverse time curve ground-fault protection

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tg function.

Activation of neutral status (3-pole trip unit with ENCT option)

• N: Neutral protection active

• noN: Neutral protection not active

–

–

Ir: Long-time protection pickup value for the phases

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

Cl: Long-time protection trip class (value at 7.2 Ir)

s

The up arrow indicates the Cl function.

Y: Type of ventilation

• Auto: Natural ventilation by the motor

• Moto: Forced ventilation by a dedicated motor

–

The up arrow indicates the Y function.

Isd: Short-time protection pickup value for the phases

A

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

Iunbal: Phase unbalance protection pickup value (expressed as a percentage of the average motor current)

%

The up arrow indicates the Iunbal function.
The down arrows indicate the 3 phases.

tunbal: Phase unbalance protection time delay value

s

The up arrow indicates the tunbal function.

Ijam: Jam motor protection pickup value (if OFF is indicated, jam motor protection is not active)

A

The up arrow indicates the Ijam function.
The down arrows indicate the 3 phases.

tjam: Jam motor protection time delay value

s

The up arrow indicates the tjam function.

Ig: Ground-fault protection pickup value

A

The up arrow indicates the Ig function.
The down arrows indicate the 3 phases.

tg: Ground-fault protection time delay value

OFF is always indicated: the I²t inverse time curve protection function is not available on MicroLogic 6 E-M trip units.

s

The up arrow indicates the tg function.

Ir: Long-time protection pickup setting for the 3 phases

Preset by a dial

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

Cl: Selection of the long-time protection trip class

s

The up arrow indicates the Cl function.

Y: Choice of type of ventilation

• Auto: Natural ventilation by the motor active

• Moto: Forced ventilation by a dedicated motor active

–

The up arrow indicates the Y function.

Isd: Short-time protection pickup setting for the 3 phases

Isd/Ir

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

Iunbal: Phase unbalance protection pickup setting (expressed as a percentage of the average motor current)

%

The up arrow indicates the Iunbal function.
The down arrows indicate the 3 phases.

tunbal: Phase unbalance protection time delay setting

s

The up arrow indicates the tunbal function.

Ijam: Jam motor protection pickup setting (if OFF is indicated, jam motor protection is not active)

Ijam/Ir

The up arrow indicates the Ijam function.
The down arrows indicate the 3 phases.

tjam: Jam motor protection time delay setting

s

The up arrow indicates the tjam function.

Ig: Ground-fault protection pickup setting

Preset by a dial

Ig/In

The up arrow indicates the Ig function.

tg: Ground-fault protection time delay setting

s

The up arrow indicates the tg function.
The down arrows indicate the 3 phases.

Ir: Long-time protection pickup value for the phases

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

Ir(IN): Long-time protection pickup value for the neutral (4-pole and neutral protection active)

A

The up arrow indicates the Ir function.
The down arrow indicates the neutral.

tr: Long-time protection time delay value (at 6 Ir)

s

The up arrow indicates the tr function.

Isd: Short-time protection pickup value for the phases

A

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

Isd(IN): Short-time protection pickup value for the neutral (4-pole and neutral protection active)

A

The up arrow indicates the Isd function.
The down arrow indicates the neutral.

tsd: Short-time protection time delay value

The time delay is associated with the I²t inverse time curve protection function:

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tsd function.

Ii: Instantaneous protection pickup value setting for the phases and the neutral (4-pole and neutral protection active)

A

The up arrow indicates the Ii function.
The down arrows indicate the 3 phases.

IΔn: Earth-leakage protection pickup value

A

The up arrow indicates the IΔn function.
The down arrows indicate the 3 phases.

Δt: Earth-leakage protection time delay value

s

The up arrow indicates the Δt function.

Neutral status:

• N: Neutral protection active

• noN: Neutral protection not active

–

–

Ir: Long-time protection pickup setting for the phases

Preset by a dial

A

The up arrow indicates the Ir function.
The down arrows indicate the 3 phases.

tr: Long-time protection time delay setting

s

The up arrow indicates the tr function.

Isd: Short-time protection pickup setting for the phases

Isd/Ir

The up arrow indicates the Isd function.
The down arrows indicate the 3 phases.

tsd: Short-time protection time delay setting

Activation of the I²t inverse time curve short-time protection

• ON: I²t function active

• OFF: I²t function not active

s

The up arrow indicates the tsd function.

IN: Protection pickup setting for the neutral (4-pole and neutral protection active)

IN/Ir

The down arrow indicates the neutral.

Ii: Instantaneous protection pickup value for the phases and for the neutral (4-pole and neutral protection active)

Ii/In

The up arrow indicates the Ii function.
The down arrows indicate the 3 phases.

IΔn: Earth-leakage protection pickup setting

Preset by a dial

A

The up arrow indicates the IΔn function.
The down arrows indicate the 3 phases.

Δt: Earth-leakage protection time delay setting

s

The up arrow indicates the Δt function.

Activation of neutral status

• N: Neutral protection active

• noN: Neutral protection not active

–

–