ABB REJ 525 - 3 Instructions; HMI Features; Front Panel

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1MRS 752137-MUM
Combined Overcurrent and Earth-Fault Relay
Operator’s Manual
REJ 525
3. Instructions
3.1. HMI features
3.1.1. 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)
REJ 525
Order No: REJ525B 412-BAA
Article No: 1MRS091412
Serial No: ER 000001
Uaux = 110-240 Vac
Uaux = 48-220 Vdc
fn = 50/60 Hz
In = 0.2/1 A (Io)
In = 1/5 A (I)
C
E
STARTREADY TRIP
ABB
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Frview_525