What to do if Schweitzer Engineering Laboratories SEL-587Z Relays components are sensitive to undetectable permanent damage?
To prevent undetectable permanent damage to Schweitzer Engineering Laboratories Relays components, ground yourself, your work surface, and the equipment before removing any cover. If your facility lacks the necessary equipment, contact SEL to return the device and related SEL equipment for service.
Details the differential and overcurrent protection functions of the SEL-587Z Relay.
Explains how SELOGIC control equations configure output contacts for various functions.
Lists detailed electrical, environmental, safety, and type test specifications for the SEL-587Z.
Provides details on ventilation, rack and panel mounting, and cleaning procedures for the SEL-587Z.
Details connecting wiring to terminal blocks, including screw torque and wire gauge recommendations.
Describes control voltage selection jumpers and output contact jumper configurations.
Explains the SEL-587Z's high-impedance and overcurrent protection principles and features.
Introduces nondirectional overcurrent elements and their independent pickup/time-delay settings.
Explains pickup, torque-control, time-dial, and curve shape settings for overcurrent elements.
Discusses transformer overcurrent and restricted earth fault (REF) protection applications.
Explains how the SEL-587Z provides demand and peak demand ammetering for currents.
Explains how Relay Word bits IN1 and IN2 follow debounced optoisolated inputs with default times.
Details how local control switches emulate panel switches using front-panel pushbuttons and display.
Explains operating remote control switches via serial communications port and their Relay Word bits.
Describes how SELOGIC control equations use Relay Word bits and operators to create custom logic.
Describes how to create customized logic using SVn variables and timers.
Explains flexible tripping using TRn, ULTRn, and TDURD SELOGIC settings and their operation.
Details flexible circuit breaker closing logic using CL, ULCL, 52A, and CFD SELOGIC settings.
Explains how SELOGIC settings OUT1-OUT4 control Relay Word bits and output contacts.
Lists front-panel target LEDs and their definitions for relay trip events.
Guides on changing settings using the SET n s command and editing keystrokes.
Explains accessing relay and port settings using the front-panel {SET} pushbutton.
Explains settings for relay configuration like RID, TID, CT Ratio, NFREQ, PHROT, and DATE_F.
Details serial port pinouts for EIA-232 and EIA-485, and default settings.
Explains automatic messages, access levels, and software protocols like SEL ASCII.
Lists software protocols including SEL ASCII, LMD, Fast Meter, Compressed ASCII, and Modbus RTU.
Introduces binary data streams, Fast Meter, and Fast Operate protocols for metering and control.
Lists serial port settings for SEL ASCII, LMD, and Modbus protocols.
Explains ACC and 2AC commands for accessing different relay command levels.
Provides a view of the front panel, its components, and display time-out behavior.
Describes target LEDs as indicators of relay detection and reaction to trip events.
Details password protection for Access Level 2 commands and front-panel password entry.
Explains the eight multifunction pushbuttons and their primary/secondary functions for control.
Describes asserting/deasserting local bits via front-panel {CNTRL} pushbutton for scheme control.
Explains emulating switch types using corresponding switch position label settings.
Explains how the relay triggers event reports based on various conditions and element assertions.
Details factory settings for ER1 and ER2 to trigger event reports for differential elements and CT open-circuit conditions.
Explains different serial port commands (EVENT, EVENT L, EVENT R) for displaying event reports based on number or date.
Lists digital element columns, corresponding Relay Word bits, symbols, and definitions.
Explains SER report triggering based on element state changes and factory default settings.
Describes how to clear SER reports from nonvolatile memory using the SER C command.
Lists features assisting relay testing like METER, EVENT, TARGET, SER, and programmable outputs.
Details testing using SER by setting triggers and viewing reports for element timing.
Guides performing acceptance tests to verify relay operation, theory, settings, and capabilities.
Guides verifying interface setup, applying control voltage, establishing Access Level 0, and checking self-test status.
Guides testing instantaneous overcurrent elements by checking pickup values and target LED illumination.
Details determining expected time delay, setting SER, and verifying operation times for inverse-time elements.
Details determining expected differential element pickup value and applying voltage test sources.
Lists relay self-tests for out-of-tolerance conditions and corrective actions, including alarm output.
Provides procedures for inspection and troubleshooting common issues like dark LEDs or communication problems.
Explains how to determine the firmware revision number using the STATUS command or front-panel pushbutton.
Outlines the procedure for upgrading relay firmware using SELBOOT program and required equipment.
Details steps to prepare the relay and establish a terminal connection for firmware upgrade.
Guides on setting up HyperTerminal, selecting the serial port, and establishing serial communications parameters.
Details starting the SELBOOT program and confirming serial communication for the upgrade process.
Guides on copying the current firmware from the relay to a computer for backup.
Explains inserting new firmware disk, commanding relay to receive, erasing existing firmware, and sending new firmware.
Guides verifying the EN LED status and Access Level 0 prompt after firmware upload.
Details verifying calibration settings, firmware revision, self-test parameters, and applied signals.
Defines Relay Word bits related to overcurrent elements, including pickup, reset, and timing.
Lists Relay Word bits for high-impedance elements, including pickup and reserved bits.
Defines Relay Word bits corresponding to local control switches (LB1-LB8) for front-panel operations.
Defines Relay Word bits corresponding to remote control switches (RB1-RB8) for serial port operations.
Lists Relay Word bits for SELOGIC control equation variables (SV1-SV14) and timer inputs/outputs.
Defines Relay Word bits for trip (TRIP1-TRIP3) and close (CLOSE) logic outputs.
Lists Relay Word bits for input (IN1, IN2) and output contacts (ALARM, OUT1-OUT4).
Provides an alphabetical list of Relay Word bits, their definitions, and corresponding rows.
Describes Modbus RTU features, enabling Modbus, and its communication capabilities with masters.
Details the 01h Read Coil Status command format and error responses.
Explains using function code 01h to read On/Off status of selected bits and error handling.
Explains using function code 02h to read On/Off status of selected bits (inputs) and error handling.
Explains using function code 06h to write to a database register for command codes and parameters.
Describes function code 10h for writing multiple registers at once, with addressing considerations.
Discusses using Modbus function codes 06h or 10h to force relay operations via command codes.
Details Modbus register map for Relay ID, Revision, Relay ID, Terminal ID, and Reserved fields.
Relay command level with specified information and commands, requiring password for higher levels.
Validates system connections and confirms relay/equipment function as intended.
Protection scheme responding to difference between incoming and outgoing electrical quantities.
Text-based data collection for triggering conditions, showing measurements and states. Use for performance analysis.
SEL binary serial port command for collecting metering data.
Elements operating on residual ground calculation exceeding thresholds, asserting when calculation exceeds thresholds.
Device using paralleled CTs for differential zone; external faults use saturated CT, not relay.
Relay Word bit outputs from local control switches accessed via front panel.
Confirms accurate AC measurements and correct function of auxiliary equipment, logic, and protection.
Elements comparing negative-sequence calculation with thresholds, asserting when calculation exceeds thresholds.
Relay inputs for monitoring external circuits; connect to relay/breaker contacts.
Max demand and timestamp for currents, powers; stores peak values, overwriting daily if larger.
Elements operating by comparing phase current to setting, asserting when current exceeds thresholds.
Single relay element or logic result; equals logical 1 (true) or 0 (false). Used in SELOGIC equations.
Overcurrent protection operating at conditions exceeding system unbalance (3I0 = IA + IB + IC).
Function verifying critical device subsystem operation and detecting out-of-tolerance conditions.
Relay setting for control output using logical combination of element outputs and fixed logic.
Relay function storing date/time of assertion/deassertion of Relay Word bits for event order and timing.
Lists available commands, their descriptions, and access levels.
Details the differential and overcurrent protection functions of the SEL-587Z Relay.
Explains how SELOGIC control equations configure output contacts for various functions.
Lists detailed electrical, environmental, safety, and type test specifications for the SEL-587Z.
Provides details on ventilation, rack and panel mounting, and cleaning procedures for the SEL-587Z.
Details connecting wiring to terminal blocks, including screw torque and wire gauge recommendations.
Describes control voltage selection jumpers and output contact jumper configurations.
Explains the SEL-587Z's high-impedance and overcurrent protection principles and features.
Introduces nondirectional overcurrent elements and their independent pickup/time-delay settings.
Explains pickup, torque-control, time-dial, and curve shape settings for overcurrent elements.
Discusses transformer overcurrent and restricted earth fault (REF) protection applications.
Explains how the SEL-587Z provides demand and peak demand ammetering for currents.
Explains how Relay Word bits IN1 and IN2 follow debounced optoisolated inputs with default times.
Details how local control switches emulate panel switches using front-panel pushbuttons and display.
Explains operating remote control switches via serial communications port and their Relay Word bits.
Describes how SELOGIC control equations use Relay Word bits and operators to create custom logic.
Describes how to create customized logic using SVn variables and timers.
Explains flexible tripping using TRn, ULTRn, and TDURD SELOGIC settings and their operation.
Details flexible circuit breaker closing logic using CL, ULCL, 52A, and CFD SELOGIC settings.
Explains how SELOGIC settings OUT1-OUT4 control Relay Word bits and output contacts.
Lists front-panel target LEDs and their definitions for relay trip events.
Guides on changing settings using the SET n s command and editing keystrokes.
Explains accessing relay and port settings using the front-panel {SET} pushbutton.
Explains settings for relay configuration like RID, TID, CT Ratio, NFREQ, PHROT, and DATE_F.
Details serial port pinouts for EIA-232 and EIA-485, and default settings.
Explains automatic messages, access levels, and software protocols like SEL ASCII.
Lists software protocols including SEL ASCII, LMD, Fast Meter, Compressed ASCII, and Modbus RTU.
Introduces binary data streams, Fast Meter, and Fast Operate protocols for metering and control.
Lists serial port settings for SEL ASCII, LMD, and Modbus protocols.
Explains ACC and 2AC commands for accessing different relay command levels.
Provides a view of the front panel, its components, and display time-out behavior.
Describes target LEDs as indicators of relay detection and reaction to trip events.
Details password protection for Access Level 2 commands and front-panel password entry.
Explains the eight multifunction pushbuttons and their primary/secondary functions for control.
Describes asserting/deasserting local bits via front-panel {CNTRL} pushbutton for scheme control.
Explains emulating switch types using corresponding switch position label settings.
Explains how the relay triggers event reports based on various conditions and element assertions.
Details factory settings for ER1 and ER2 to trigger event reports for differential elements and CT open-circuit conditions.
Explains different serial port commands (EVENT, EVENT L, EVENT R) for displaying event reports based on number or date.
Lists digital element columns, corresponding Relay Word bits, symbols, and definitions.
Explains SER report triggering based on element state changes and factory default settings.
Describes how to clear SER reports from nonvolatile memory using the SER C command.
Lists features assisting relay testing like METER, EVENT, TARGET, SER, and programmable outputs.
Details testing using SER by setting triggers and viewing reports for element timing.
Guides performing acceptance tests to verify relay operation, theory, settings, and capabilities.
Guides verifying interface setup, applying control voltage, establishing Access Level 0, and checking self-test status.
Guides testing instantaneous overcurrent elements by checking pickup values and target LED illumination.
Details determining expected time delay, setting SER, and verifying operation times for inverse-time elements.
Details determining expected differential element pickup value and applying voltage test sources.
Lists relay self-tests for out-of-tolerance conditions and corrective actions, including alarm output.
Provides procedures for inspection and troubleshooting common issues like dark LEDs or communication problems.
Explains how to determine the firmware revision number using the STATUS command or front-panel pushbutton.
Outlines the procedure for upgrading relay firmware using SELBOOT program and required equipment.
Details steps to prepare the relay and establish a terminal connection for firmware upgrade.
Guides on setting up HyperTerminal, selecting the serial port, and establishing serial communications parameters.
Details starting the SELBOOT program and confirming serial communication for the upgrade process.
Guides on copying the current firmware from the relay to a computer for backup.
Explains inserting new firmware disk, commanding relay to receive, erasing existing firmware, and sending new firmware.
Guides verifying the EN LED status and Access Level 0 prompt after firmware upload.
Details verifying calibration settings, firmware revision, self-test parameters, and applied signals.
Defines Relay Word bits related to overcurrent elements, including pickup, reset, and timing.
Lists Relay Word bits for high-impedance elements, including pickup and reserved bits.
Defines Relay Word bits corresponding to local control switches (LB1-LB8) for front-panel operations.
Defines Relay Word bits corresponding to remote control switches (RB1-RB8) for serial port operations.
Lists Relay Word bits for SELOGIC control equation variables (SV1-SV14) and timer inputs/outputs.
Defines Relay Word bits for trip (TRIP1-TRIP3) and close (CLOSE) logic outputs.
Lists Relay Word bits for input (IN1, IN2) and output contacts (ALARM, OUT1-OUT4).
Provides an alphabetical list of Relay Word bits, their definitions, and corresponding rows.
Describes Modbus RTU features, enabling Modbus, and its communication capabilities with masters.
Details the 01h Read Coil Status command format and error responses.
Explains using function code 01h to read On/Off status of selected bits and error handling.
Explains using function code 02h to read On/Off status of selected bits (inputs) and error handling.
Explains using function code 06h to write to a database register for command codes and parameters.
Describes function code 10h for writing multiple registers at once, with addressing considerations.
Discusses using Modbus function codes 06h or 10h to force relay operations via command codes.
Details Modbus register map for Relay ID, Revision, Relay ID, Terminal ID, and Reserved fields.
Relay command level with specified information and commands, requiring password for higher levels.
Validates system connections and confirms relay/equipment function as intended.
Protection scheme responding to difference between incoming and outgoing electrical quantities.
Text-based data collection for triggering conditions, showing measurements and states. Use for performance analysis.
SEL binary serial port command for collecting metering data.
Elements operating on residual ground calculation exceeding thresholds, asserting when calculation exceeds thresholds.
Device using paralleled CTs for differential zone; external faults use saturated CT, not relay.
Relay Word bit outputs from local control switches accessed via front panel.
Confirms accurate AC measurements and correct function of auxiliary equipment, logic, and protection.
Elements comparing negative-sequence calculation with thresholds, asserting when calculation exceeds thresholds.
Relay inputs for monitoring external circuits; connect to relay/breaker contacts.
Max demand and timestamp for currents, powers; stores peak values, overwriting daily if larger.
Elements operating by comparing phase current to setting, asserting when current exceeds thresholds.
Single relay element or logic result; equals logical 1 (true) or 0 (false). Used in SELOGIC equations.
Overcurrent protection operating at conditions exceeding system unbalance (3I0 = IA + IB + IC).
Function verifying critical device subsystem operation and detecting out-of-tolerance conditions.
Relay setting for control output using logical combination of element outputs and fixed logic.
Relay function storing date/time of assertion/deassertion of Relay Word bits for event order and timing.
Lists available commands, their descriptions, and access levels.
General| Communication Ports | Ethernet, Serial |
|---|---|
| Impulse Withstand | 5 kV |
| Redundancy Protocols | PRP, HSR |
| Frequency | 50/60 Hz |
| Type | Differential Relay |
| Voltage Rating | 100–240 Vac |
| Current Input | 1 A, 5 A |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% noncondensing |
| Surge Withstand | IEEE C37.90.1 |
| EMC Compliance | IEC 61000-6-2 |
| Port Type | Ethernet, Serial |
| Fiber Optic Ports | Optional |
| Management | Web server |
| Security | Role-Based Access Control |
| Time Synchronization | IEEE 1588, NTP |
| Phase Configuration | Three-phase |
| Standards Compliance | IEEE |
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