Differential Relay CIRCUTOR

Differential Relay CIRCUTOR

Front Panel

The front panel, which consists of a display, buttons, and LEDs, is protected by a sealable plastic cover, conveniently perforated to access the RESET, TEST, and PROGRAMMING keys.

Generic Functions of LEDs and Front Panel Keys

The device has two indicator lights or LEDs:

  • Bicolor Green/Red LED:
    • Off, the device is not operating or does not receive power supply.
    • Green on, the device is operating. It receives power supply.
    • Red on, the device has triggered.
  • Yellow LED: Pre-alarm indication.
    • Off, there is no pre-alarm trigger.
    • On, steady, pre-alarm trigger without reconnection.
    • On, flashing, pre-alarm trigger in a reconnection situation.

The device has 7 buttons described according to the accessibility level:

  • RESET Key: Initializes the device after a trigger.
  • TEST Key: Performs a trigger to check the correct operation of the relay.
  • PROG/PAG Key: Key with dual function.
    • Short press enters pre-alarm programming.
    • Long press enters device programming via SETUP.

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