Clearing and acknowledging via the local HMI - Arc protection - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Grid automation - Busbar differential protection (high impedance) - Line differential protection - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Interconnection protection - Generator protection - Power management/Load shedding - Operation Manual - REX615 Protection and control - PCL2 - IEC - ANSI - 14.05.2025

REX615 Operation Manual

All messages and indications, including LEDs and latched outputs as well as registers and indications, including recordings can be reset, acknowledged or cleared with the Clear button. Pressing the Clear button activates a menu for selecting the wanted clearing or reset function. Events and alarms assigned to programmable LEDs can also be cleared with the Clear button.

  1. Press to activate the Clear view.
    All the items that can be cleared are shown.
    • Indications and LEDs
    • Programmable LEDs
    • Events
    • Metering records
    • Power quality data
    • Disturbance records
    • Fault records
    • Load profile record
    • Acc. energy of circuit breaker condition monitoring, three-phase power and energy measurement and single-phase power and energy measurement
    • Rem. life of circuit breaker condition monitoring
    • Travel times of circuit breaker condition monitoring
    • Spr. charge time of circuit breaker condition monitoring
    • Temperature of three-phase thermal protection for feeders, cables and distribution transformers, and thermal overload protection for motors
    • Reset of autoreclosing and cable fault detection
    • Operation time of runtime counter for machines and devices
    • Counters for autoreclosing and motor startup supervision
    • Master trip
    • Clear All
    Figure 1. Clear view
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  2. Select the item to be cleared with or .
  3. Press , change the value with or and press again.
    The item is now cleared.
  4. Repeat the steps to clear other items.
Tip: Use the button as a shortcut for clearing. The first three-second press clears the indications. The second three-second press clears the programmable LEDs.