Instructions; Hmi Features; Front Panel - ABB REJ 525 Operator's Manual

REJ 525
3.
3.1.
3.1.1.
8
Combined Overcurrent and Earth-Fault Relay
Operator's Manual

Instructions

HMI features

Front panel

The front panel of the protection relay includes:
• an alphanumeric 2 x 16 characters' LCD with backlight and contrast control
• three indicator LEDs (ready, start, trip)
• an HMI push-button section with four arrow buttons and buttons for clear and
enter
• an optically isolated serial communication port
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1. LCD
2. Optical PC-connector
3. HMI push-button section
4. Indicator LEDs:
• Left: Ready (green)
• Centre: Start (yellow)
• Right: Trip (red)
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1MRS 752137-MUM