ABB REC650 ANSI Technical Manual page 524

Relion 650 series bay control

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V<BattVoltLowLim

U<BattVoltHiLim

ANSI11000292 V1 EN

Functional module diagram

The battery rated voltage is set with the RtdBattVolt setting. The value of the

BattVoltLowLim and BattVoltHiLim settings are given in relative per unit to the

RtdBattVolt setting.

It is possible to block the function outputs by the BLOCK input.

Low level detector

The level detector compares the battery voltage V_BATT with the set value of the

BattVoltLowLim setting. If the value of the V_BATT input drops below the set value of the

BattVoltLowLim setting, the pickup signal PU_VLOW is activated.

The measured voltage between the battery terminals V_BATT is available through the

Monitored data view.

High level detector

The level detector compares the battery voltage V_BATT with the set value of the

BattVoltHiLim setting. If the value of the V_BATT input exceeds the set value of the

BattVoltHiLim setting, the pickup signal PU_VHI is activated.

When the operate timer has reached the value set by the tDelay setting, the AL_VLOW and

AL_VHI outputs are activated. If the voltage returns to the normal value before the

module operates, the reset timer is activated. If the reset timer reaches the value set by

tReset, the operate timer resets and the PU_VLOW and AL_VHI outputs are deactivated.

1MRK 511 287-UUS A

ANSI11000292-1-en.vsd

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