Description
Series:
EHDB280-21-11 is an ABB product model that may belong to a specific ABB product family, but the specific family name is not explicitly mentioned in the search results.
Features:
Communication capability: EHDB280-21-11 provides two effective communication ports that support DeviceNet and the RS-485-based DF1 protocol.
Display function: Display three-phase current and three-phase voltage readings at the same time.
Materials: Display modules use non-brominated, FDA-approved plastics for applications such as pharmaceutical, food processing and control room fire protection requirements.
Connectivity: Multiple analog and digital I/O connections with Rockwell Automation.
Memory: Has large capacity non-volatile memory.
Sampling frequency: with continuous high-speed sampling frequency, up to 10.8kHz.
Parameters and specifications:
Operating voltage: The operating voltage of the EHDB280-21-11 may vary from application to application, but ABB’s automation equipment typically operates over a wide range of voltages.
Output frequency: Some search results mention an output frequency of 50-60kHz.
Product certification: EHDB280-21-11 obtained CCC certification.
Function: The accident alarm signals of switches of all power stations and unattended transformation substations are synthesized together to form a total accident system of the whole station.
Communication interface: The EHDB280-21-11 device contains a microprocessor controlled dual-port DeviceNet communication option, one port supports DeviceNet, the other port supports the RS-485 based DF1 protocol.
Functions:
EHDB280-21-11 is mainly used for power system management, providing power disturbance recording and tripping functions, as well as connection capabilities with various I/O devices.
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