Need help?Do you have a question about the ABB REF601 CEI and is the answer not in the manual?
General| Rated Frequency | 50/60 Hz |
|---|---|
| Degree of Protection (front) | IP54 |
| Product Type Designation | REF601 |
| Type | Feeder protection relay |
| Standard | IEC 60255 |
| Communication Protocol | Modbus RTU |
| Operating Temperature | -25°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Ingress Protection (IP) | IP54 front |
Describes the manual's content, purpose, and intended use.
Outlines the target users and their required knowledge for this manual.
Lists the historical versions of the document with release dates.
Explains safety icons, warnings, and function codes used in the manual.
Provides a general introduction to the REF601 relay and its key features.
Details the different versions of the REF601 product released.
Describes the standard configuration and supported operational functions.
Explains fundamental functions like self-supervision, recorded data, event logs, and access control.
Details the power supply requirements, range, and topology of the REF601 relay.
Specifies the physical dimensions (width, height, depth) and weight of the relay.
Lists detailed technical specifications for the relay's power supply unit.
Provides technical data for phase and earth current inputs, including ranges.
Details the specifications for binary inputs, including rated voltage and current drain.
Specifies the technical characteristics of the output relays for trip and signaling functions.
Details the technical parameters for overcurrent and earth fault protection stages.
Outlines environmental operating conditions and various environmental tests performed.
Details electrical insulation, mechanical construction, and EMC compatibility test specifications.
States compliance with the EMC directive.
States compliance with the Low Voltage directive.
Lists communication protocol (Modbus RTU) and port details.
Explains functionality and operational principle of three-phase overcurrent protection.
Describes functionality and operational principle of earth-fault protection.
Details the transformer inrush detection function and its principle of operation.
Describes the relay's pre-defined output contacts and binary inputs.
Explains breaker control, trip command logic, and remote/local modes.
Provides a schematic diagram of analogue inputs, binary I/O, and LED indications.
Details time/current characteristics and IEC characteristic formulas for protection functions.
Describes the elements and purpose of the Local Human-Machine Interface (LHMI).
Explains how to navigate through the relay's menu structure via the LHMI.
Details user categories, access levels, and password management for the LHMI.
Describes how to access and view current measurements via the LHMI menu.
Explains how to view recorded fault data and trip counter values through the menu.
Describes how to access and view event logs detailing operational occurrences.
Details how to modify protection and configuration parameters via the LHMI.
Outlines the various configuration options available for the relay.
Introduces the test sub-menus for calibration, hardware, trip output, and functional tests.
Provides instructions for safely unpacking and inspecting the relay upon receipt.
Offers guidance on proper storage conditions for the apparatus.
Specifies environmental requirements and space considerations for relay installation.
Details the relay's mounting versions and their physical dimensions.
Provides guidelines and specifications for connecting the relay wiring.
Shows the detailed physical dimensions for flush and breaker mounting.
Illustrates the complete connection diagram for the relay's terminals and modules.
Explains the procedure for correctly bonding the sensor cable shield for optimal performance.
Lists the available relay variants and their corresponding ordering codes.
Introduces the Modbus protocol and its master-slave communication technique.
Details the communication connector and connection scheme for networking relays.
Explains the RTU framing format, character structure, and CRC checking for Modbus messages.
Lists and defines various Modbus RTU function codes used for communication.
Describes how the relay handles and reports exceptions during Modbus communication.
Provides common fault diagnosis and troubleshooting steps for RS485 and Modbus communication.
To Next Page
