ED2-AU devices are used as alarm warning light system, and can also be used to arrange external sound alarm circuits at power facilities.
The ED2-AU has size type with housing width 1 × 19 inches.
Front panel
Large display showing events, real-time measurements and the list of disturbance records
On/Off electronic switches used to enable/disable functionalities directly from the device front panel
Two-color LEDs (green/red) are provided with status latching or non-latching
The following buttons are provided on the IED front panel:
- IED control buttons
- keyboard
Ethernet for PC connection, USB for Flash drive connection
Rear view
IED is powered from sources of 110 VDC, 220 VDC
Up to 256 freely configurable binary inputs/outputs
IED has 2 RS485 ports and up to 3 Ethernet ports supporting protocols IEC 60850-103/104, Modbus RTU/TCP, GOOSE, MMS (IEC 61850). For IEDs supporting IEC 61850, RJ45 or duplex LC Ethernet ports are provided featuring PRP hardware redundancy capability
IED supports multiple types of hardware synchronization:
- PPS:
- Differential communication line (twisted pair, using optional converter)
- Fiber-optic line (using optional converter)
- 24 V synchronization pulse
- IRIG-B:
- Differential communication line (twisted pair)
- Fiber-optic line (using optional converter)
Designed for their quick replacement with no need to dismantle the IED