Outputs; Disturbance Recorder; Front Panel - ABB REU 610 Technical Reference Manual

REU 610
5.1.1.3.
5.1.1.4.
5.1.1.5.
18
Voltage Relay
Technical Reference Manual

Outputs

The relay is provided 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
*
Switchgroups SGR1...8 are used for routing internal signals from the protection
stages and the external trip signal to the wanted signal or power output contact. The
minimum pulse length can be configured to be 40 or 80 ms and the power output
contacts can be configured to be latched.

Disturbance recorder

The relay includes an internal disturbance recorder which records the momentary
measured values or the RMS curves of the measured signals, and up to eight user-
selectable digital signals: the digital input signals and the internal signals from the
protection stages. Any digital signal can be set to trigger the recorder on either the
falling or rising edge.

Front panel

The front panel of the relay contains:
Alphanumeric 2 × 16 characters' LCD with backlight and automatic contrast
*
control
Three indicator LEDs (green, yellow, red) with fixed functionality
*
Eight programmable indicator LEDs (red)
*
HMI push-button section with four arrow buttons and buttons for clear/cancel
*
and enter, used in navigating in the menu structure and in adjusting setting values
Optically isolated serial communication port with an indicator LED.
*
There are two levels of HMI passwords; main HMI setting password for all settings
and HMI communication password for communication settings only.
The HMI passwords can be set to protect all user-changeable values from being
changed by an unauthorized person. Both the HMI setting password and the HMI
communication password remain inactive and are not required for altering parameter
values until the default HMI password is replaced.
Entering the HMI setting or communication password successfully can
be selected to generate an event code. This feature can be used to
indicate interaction activities via the local HMI.
For further information on the HMI, refer to the Operator's Manual.
1MRS755769