Outputs; Disturbance Recorder; Hmi; Non-Volatile Memory - ABB REF 610 Technical Reference Manual

REF 610
4.1.1.3.
4.1.1.4.
4.1.1.5.
4.1.1.6.
4.1.1.7.
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Feeder Protection Relay
Technical Reference Manual - ANSI Version

Outputs

REF 610 is provided with three trip outputs (PO1, PO2 and PO3), two non-trip
outputs (SO1 and SO2) and three optional non-trip outputs (SO3, SO4 and SO5).
Switchgroups SGR1...8 are used for routing internal signals from the protection
elements, the external trip signal and signals from the auto-reclose function to the
desired non-trip or trip output. The minimum pulse length can be configured to be
40 or 80 ms and the trip outputs can all be configured to be latched.

Disturbance recorder

REF 610 includes an internal disturbance recorder which records the instantaneous
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 elements. Any digital signal can be set to trigger the recorder on either
the falling or rising edge.

HMI

The HMI of REF 610 is equipped with six push-buttons, an alphanumeric
2x16 characters' LCD, eight programmable target LEDs, three target LEDs with
fixed functionality, and an target LED for front communication. The
push-buttons are used for navigating in the menu structure and for adjusting setting
values.
An HMI password can be set to protect all user-changeable values from being
changed by an unauthorized person. The HMI password will remain inactive and
will thus not be required for altering parameter values until the default HMI
password has been replaced. Entering the HMI 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.

Non-volatile memory

REF 610 can be configured to store various data in a non-volatile memory, which
will retain its data also in case of loss of auxiliary voltage (provided that the battery
has been inserted and is charged). Operation target messages and LEDs, disturbance
recorder data, event codes and recorded data can all be configured to be stored in the
non-volatile memory whereas setting values will always be stored in the EEPROM.

Self-supervision

The self-supervision system of REF 610 manages run-time fault situations and
informs the user about an existing fault. There are two types of fault targets: internal
relay fault (IRF) targets and warnings.
When the self-supervision system detects a permanent internal relay fault, which
will prevent relay operation, the green target LED (ready) will begin to blink. At the
same time, the IRF contact, which is normally picked up, will drop off and a fault
code will appear on the LCD. The fault code is numerical and identifies the fault
type.
1MRS 755535