Outputs

The relay is equipped with

* three power output contacts PO1. PO2 and PO3

* two signal output contacts SO1 and SO2

* three optional signal output contacts SO3. SO4 and SO5

Switch group SGR1…. .8 is used to route internal signals from the protection stage, external trip signals and signals from the automatic reclosing function to the required signal or power output contacts.

The minimum pulse length can be configured as 40 or 80 ms and the power output contacts can be configured as latching.

Trouble Logger

The relay has a built-in disturbance logger that records the instantaneous measured value or the RMS curve of the measured signal.

and up to eight user-selectable digital signals: digital input signals and internal signals from the protection stage.

Any digital signal can be set to trigger the recorder on the falling or rising edge.

Front Panel

The relay front panel consists of

* 2 × 16 character alphanumeric LCD with backlight and automatic contrast control Controls

* Three LED indicators (green, yellow, red) with fixed functions

* Eight programmable LED indicators (red)

* HMI button section with four arrow buttons as well as clear/cancel and enter buttons for navigating through the navigation bar.

HMI button section with four arrow buttons as well as clear/cancel and input buttons for navigating through the menu structure and adjusting setting values

* Optically isolated serial communication port with LED indicators.

HMI passwords are divided into two levels: the main HMI setup password for all settings and the HMI communication password for communication settings only.

HMI passwords can be used to protect all user changeable values from being changed by unauthorized personnel.

Both the HMI setup password and the HMI communication password are inactive and are not required to change parameter values until the default HMI password is changed.

Non-Volatile Memory

The relay can be configured to store various data in non-volatile memory, even in the event of loss of auxiliary voltage (as long as the battery is inserted and charged), the

The non-volatile memory retains data even in the event of loss of auxiliary voltage (as long as the battery is inserted and charged). Operation indication messages and LEDs, interference logger data,

The EEPROM does not require a battery backup.