This feature allows operation with hosts which hold the RS transmitter active for some time after each transmission. These messages appear only if the D60 is ordered with an Ethernet card.
These settings are used only in advanced network configurations and should normally be left at their default values, but may be changed if required for example, to allow access to multiple URs behind a router.
The client software URPC, for example must be configured to use the correct port number if these settings are used. The UR operates as a Modbus slave device only. For the RS ports each D60 must have a unique address from 1 to Address 0 is the broadcast address which all Modbus slave devices listen to. Addresses do not have to be sequential, but no two devices can have the same address or conflicts resulting in errors will occur.
Generally, each device added to the link should use the next higher address starting at 1. Refer to Appendix B for more information on the Modbus protocol. Since the D60 maintains one set of DNP data change buffers and connection information, only one DNP master should actively communicate with the D60 at one time. Once DNP is assigned to a serial port, the Modbus protocol is disabled on that port. This number identifies the D60 on a DNP communications link. Each DNP slave should be assigned a unique address.
This can be useful for users wishing to read only selected Analog Input points from the D See Appendix E for more information. This allows the list to be customized to contain data for only the sources that are configured.
This setting is relevant only when the User Map is not used. These settings group the D60 Analog Input data into types: current, voltage, power, energy, and other. Each setting represents the scale factor for all Analog Input points of that type.
These settings are useful when Analog Input values must be adjusted to fit within certain ranges in DNP masters. Note that a scale factor of 0. Each setting represents the default deadband value for all Analog Input points of that type. Note that these settings are the deadband default values. Whenever power is removed and re-applied to the D60, the default deadbands will be in effect.
Changing this time allows the DNP master to send time synchronization commands more or less often, as required. Large fragment sizes allow for more efficient throughput; smaller fragment sizes cause more application layer confirmations to be necessary which can provide for more robust data transfer over noisy communication channels.
The default DNP Binary Inputs list on the D60 contains points representing various binary states contact inputs and outputs, virtual inputs and outputs, protection element states, etc. If not all of these points are required in the DNP master, a custom Binary Inputs points list can be created by selecting up to 58 blocks of 16 points.
Each block represents 16 Binary Input points. Block 1 represents Binary Input points 0 to 15, block 2 represents Binary Input points 16 to 31, block 3 represents Binary Input points 32 to 47, etc. The minimum number of Binary Input points that can be selected is 16 1 block.
LocRemDS: Off. Range: 1 to 60 s in steps of 1. Range: Up to 16 alphanumeric characters representing the name of the UCA logical device. Range: 1 to in steps of 1. This can be used during testing or to prevent the relay from sending GOOSE messages during normal operation. LocRemDS data item. The D60 contains an embedded web server and is capable of transferring web pages to a web browser such as Microsoft Internet Explorer or Netscape Navigator.
This feature is available only if the D60 has the ethernet option installed. The web pages are organized as a series of menus that can be accessed starting at the D60 Main Menu. The web pages can be accessed by connecting the UR and a computer to an ethernet network. The Main Menu will be displayed in the web browser on the computer simply by entering the IP address of the D60 into the Address box on the web browser.
The dir. The D60 supports the IEC protocol. Since the D60 maintains one set of IEC data change buffers, only one master should actively communicate with the D60 at one time. For situations where a second master is active in a hot standby configuration, the UR supports a second IEC connection providing the standby master sends only IEC Test Frame Activation messages for as long as the primary master is active.
These settings group the UR analog data into types: current, voltage, power, energy, and other. Note that these settings are the default values of the deadbands. Whenever power is removed and re-applied to the UR, the default thresholds will be in effect. Both unicast and broadcast SNTP are supported. It may take up to two minutes for the D60 to signal an SNTP self-test error if the server is offline.
The Modbus User Map provides read-only access for up to registers. An address value of 0 in the initial register means none and values of 0 will be displayed for all registers. These settings can also be used with the DNP protocol.
It has the same accuracy as an electronic watch, approximately 1 minute per month. An IRIG-B signal may be connected to the relay to synchronize the clock to a known time base and to other relays.
The fault report stores data, in non-volatile memory, pertinent to an event when triggered. The captured data includes: Name of the relay, programmed by the user Date and time of trigger Name of trigger specific operand Active setting group Pre-fault current and voltage phasors one-quarter cycle before the trigger Fault current and voltage phasors three-quarter cycle after the trigger Target Messages that are set at the time of triggering Events 9 before trigger and 7 after trigger.
The captured data also includes the fault type and the distance to the fault location, as well as the reclose shot number when applicable The Fault Locator does not report fault type or location if the source VTs are connected in the Delta configuration. The trigger can be any FlexLogic operand, but in most applications it is expected to be the same operand, usually a virtual output, that is used to drive an output relay to trip a breaker.
To prevent the overwriting of fault events, the disturbance detector should not be used to trigger a fault report. If a number of protection elements are ORed to create a fault report trigger, the first operation of any element causing the OR gate output to become high triggers a fault report. However, If other elements operate during the fault and the first operated element has not been reset the OR gate output is still high , the fault report is not triggered again.
Considering the reset time of protection elements, there is very little chance that fault report can be triggered twice in this manner. As the fault report must capture a usable amount of pre and post-fault data, it can not be triggered faster than every 20 ms.
Each fault report is stored as a file; the relay capacity is ten files. An eleventh trigger overwrites the oldest file. The operand selected as the fault report trigger automatically triggers an oscillography record which can also be triggered independently. EnerVista UR Setup is required to view all captured data. The distance to fault calculations are initiated by this signal. Oscillography records contain waveforms captured at the sampling rate as well as other relay data at the point of trigger.
Oscillography records are triggered by a programmable FlexLogic operand. Multiple oscillography records may be captured simultaneously. There is a fixed amount of data storage for oscillography; the more data captured, the less the number of cycles captured per record. The relay sampling rate is 64 samples per cycle. Reducing the sampling rate allows longer records to be stored. This setting has no effect on the internal sampling rate of the relay which is always 64 samples per cycle, i.
The length of each oscillography trace depends in part on the number of parameters selected here. Parameters set to Off are ignored. Upon startup, the relay will automatically prepare the parameter list. A list of all possible analog metering actual value parameters is presented in Appendix A: FlexAnalog Parameters. The parameter index number shown in any of the tables is used to expedite the selection of the parameter on the relay display.
Range: Off, any FlexAnalog parameter. Range: Not applicable - shows computed data only. The data logger samples and records up to 16 analog parameters at a user-defined sampling rate. This recorded data may be downloaded to the EnerVista UR Setup software and displayed with parameters on the vertical axis and time on the horizontal axis. All data is stored in non-volatile memory, meaning that the information is retained when power to the relay is lost. For a fixed sampling rate, the data logger can be configured with a few channels over a long period or a larger number of channels for a shorter period.
The relay automatically partitions the available memory between the channels in use. Changing any setting affecting Data Logger operation will clear any data that is currently in the log.
A list of all possible analog metering actual value parameters is shown in Appendix A: FlexAnalog Parameters. When enabled, the LED Test can be initiated from any digital input or user-programmable condition such as user-programmable pushbutton. The test consists of three stages. Stage 1: All 62 LEDs on the relay are illuminated. This is a quick test to verify if any of the LEDs is burned.
This stage lasts as long as the control input is on, up to a maximum of 1 minute. After 1 minute, the test will end. The test routine starts at the top left panel, moving from the top to bottom of each LED column. This test checks for hardware failures that lead to more than one LED being turned on from a single logic point. This stage can be interrupted at any time. Stage 3: All the LEDs are turned on. One LED at a time turns off for 1 second, then back on.
The test routine starts at the top left panel moving from top to bottom of each column of the LEDs. This test checks for hardware failures that lead to more than one LED being turned off from a single logic point.
When testing is in progress, the LEDs are controlled by the test sequence, rather than the protection, control, and monitoring features. When the test completes, the LEDs reflect the actual state resulting from relay response during testing. The entire test procedure is user-controlled. In particular, Stage 1 can last as long as necessary, and Stages 2 and 3 can be interrupted.
The control pulses must last at least ms to take effect. The following diagram explains how the test is executed. The following settings should be applied. The test will be initiated when the User-Programmable Pushbutton 1 is pressed.
The pushbutton should remain pressed for as long as the LEDs are being visually inspected. When finished, the pushbutton should be released. The relay will then automatically start Stage 2. At this point forward, test may be aborted by pressing the pushbutton.
This is to be performed via User-Programmable Pushbutton 1. After applying the settings in Application Example 1, hold down the pushbutton as long as necessary to test all LEDs.
Next, release the pushbutton to automatically start Stage 2. Once Stage 2 has started, the pushbutton can be released. When Stage 2 is completed, Stage 3 will automatically start. The test may be aborted at any time by pressing the pushbutton. Each indicator can be programmed to become illuminated when the selected FlexLogic operand is in the Logic 1 state. Each of these indicators can be programmed to illuminate when the selected FlexLogic operand is in the Logic 1 state.
This menu selects the operands to control these LEDs. Support for applying user-customized labels to these LEDs is provided. Refer to the Control of Setting Groups example in the Control Elements section of this chapter for group activation.
Range: Disabled, Enabled. All major self-test alarms are reported automatically with their corresponding FlexLogic operands, events, and targets. Most of the Minor Alarms can be disabled if desired. When in the Disabled mode, minor alarms will not assert a FlexLogic operand, write to the event recorder, display target messages.
When in the Enabled mode, minor alarms continue to function along with other major and minor alarms. Refer to the Relay Self-Tests section in Chapter 7 for additional information on major and minor self-test alarms.
The three standard pushbuttons located on the top left panel of the faceplate are user-programmable and can be used for various applications such as performing an LED test, switching setting groups, and invoking and scrolling though user-programmable displays, etc.
Firmware revisions 3. This functionality has been retained if the Breaker Control feature is configured to use the three pushbuttons, they cannot be used as user-programmable control pushbuttons.
The location of the control pushbuttons in shown below. As such, they are not protected by the control password. However, by supervising their output operands, the user can dynamically enable or disable the control pushbuttons for security reasons.
These operands should be configured appropriately to perform the desired function. The operand remains asserted as long as the pushbutton is pressed and resets when the pushbutton is released.
A dropout delay of ms is incorporated to ensure fast pushbutton manipulation will be recognized by various features that may use control pushbuttons as inputs. An event is logged in the Event Record as per user setting when a control pushbutton is pressed; no event is logged when the pushbutton is released.
The faceplate keys including control keys cannot be operated simultaneously a given key must be released before the next one can be pressed. The control pushbuttons become user-programmable only if the Breaker Control feature is not configured for manual control via the User 1 through User 3 pushbuttons as shown below.
If configured for manual control, the Breaker Control feature typically uses the larger, optional user-programmable pushbuttons, making the control pushbuttons available for other user applications. The D60 has 12 optional user-programmable pushbuttons available, each configured via 12 identical menus.
The pushbuttons provide an easy and error-free method of manually entering digital information On, Off into FlexLogic equations as well as protection and control elements. Typical applications include breaker control, autorecloser blocking, ground protection blocking, and setting groups changes. The user-configurable pushbuttons are shown below. FlexLogic operands should be used to program desired pushbutton actions.
A pushbutton may be programmed to latch or self-reset. When set to "Latched", the state of each pushbutton is stored in nonvolatile memory which is maintained during any supply power loss. Pushbuttons states can be logged by the Event Recorder and displayed as target messages.
User-defined messages can also be associated with each pushbutton and displayed when the pushbutton is ON. If set to Disabled, the pushbutton is deactivated and the corresponding FlexLogic operands both On and Off are de-asserted. If set to Self-reset, the control logic of the pushbutton asserts the On corresponding FlexLogic operand as long as the pushbutton is being pressed.
As soon as the pushbutton is released, the FlexLogic operand is de-asserted. If set to Latched, the control logic alternates the state of the corresponding FlexLogic operand between On and Off on each push of the button.
When operating in Latched mode, FlexLogic operand states are stored in non-volatile memory. Should power be lost, the correct pushbutton state is retained upon subsequent power up of the relay. Refer to the User-Definable Displays section for instructions on how to enter alphanumeric characters from the keypad. Refer to the User-Definable Displays section for instructions on entering alphanumeric characters from the keypad.
A typical applications for this setting is providing a select-before-operate functionality. The selecting pushbutton should have the drop-out time set to a desired value. The selecting pushbutton LED remains on for the duration of the drop-out time, signaling the time window for the intended operation. User-programmable pushbuttons require a type HP relay faceplate.
If an HP-type faceplate was ordered separately, the relay order code must be changed to indicate the HP faceplate option. This feature provides a mechanism where any of selected FlexLogic operand states can be used for efficient monitoring. The feature allows user-customized access to the FlexLogic operand states in the relay. The state bits are packed so that 16 states may be read out in a single Modbus register. The state bits can be configured so that all of the states which are of interest to the user are available in a minimum number of Modbus registers.
The state bits may be read out in the "Flex States" register array beginning at Modbus address hex. There are 16 registers in total to accommodate the state bits.
The sub-menus facilitate text entry and Modbus Register data pointer options for defining the User Display content. Once programmed, the user-definable displays can be viewed in two ways. The screens can be scrolled using the Up and Down keys. Any FlexLogic operand in particular, the user-programmable pushbutton operands , can be used to navigate the programmed displays.
On the rising edge of the configured operand such as when the pushbutton is pressed , the displays are invoked by showing the last user-definable display shown during the previous activity. From this moment onward, the operand acts exactly as the Down key and allows scrolling through the configured displays. The last display wraps up to the first one. Any existing system display can be automatically copied into an available User Display by selecting the existing display and pressing the key.
After selecting Yes, a message indicates that the selected display has been added to the user display list. When this type of entry occurs, the sub-menus are automatically configured with the proper content this content may subsequently be edited. Each User Display consists of two character lines top and bottom. The following procedure shows how to enter text characters in the top and bottom lines from the faceplate keypad: 1. Select the line to be edited. Press the key to enter text edit mode.
Use either Value key to scroll through the characters. A space is selected like a character. Press the key to advance the cursor to the next position. Repeat step 3 and continue entering characters until the desired text is displayed. The Press the key may be pressed at any time for context sensitive help information. To enter a numerical value for any of the 5 items the decimal form of the selected Modbus address from the faceplate keypad, use the number keypad. Use the value of 0 for any items not being used.
Use the key at any selected system display Setting, Actual Value, or Command which has a Modbus address, to view the hexadecimal form of the Modbus address, then manually convert it to decimal form before entering it EnerVista UR Setup usage conveniently facilitates this conversion.
Use the key to go to the User Displays menu to view the user-defined content. The current user displays will show in sequence, changing every 4 seconds. While viewing a User Display, press the key and then select the Yes option to remove the display from the user display list.
Use the key again to exit the User Displays menu. Shows decimal form of user-selected Modbus Register Address, corresponding to first Tilde marker. Shows decimal form of user-selected Modbus Register Address, corresponding to 2nd Tilde marker. This item is not being used - there is no corresponding Tilde marker in Top or Bottom lines. On Type 7 cards that support two channels, Direct Output messages are sent from both channels simultaneously.
This effectively sends Direct Output messages both ways around a ring configuration. On Type 7 cards that support one channel, Direct Output messages are sent only in one direction. Messages will be resent forwarded when it is determined that the message did not originate at the receiver. Integrity messages with no state changes are sent at least every ms. Messages with state changes are sent within the main pass scanning the inputs and asserting the outputs unless the communication channel bandwidth has been exceeded.
Two Self-Tests are performed and signaled by the following FlexLogic operands: 1. This FlexLogic operand indicates that Direct Output messages sent. This FlexLogic operand indicates that Direct Output messages. Back-to-back connections of the local relays configured with the 7A, 7B, 7C, 7D, 7H, 7I, 7J, 7K, 72 and 73 fiber optic communication cards may be set to kbps.
For local relays configured with all other communication cards i. UR-series IEDs equipped with dual-channel communications cards apply the same data rate to both channels. The two IEDs are connected via single-channel digital communication cards as shown in the figure below. The message delivery time is about 0.
Different communications cards can be selected by the user for this back-to-back connection fiber, G. Message delivery time is approximately 0. Dual-ring configuration effectively reduces the maximum "communications distance" by a factor of two. In this configuration the following delivery times are expected at kbps if both rings are healthy: IED 1 to IED 2: 0.
Upon detecting a broken ring, the coordination time should be adaptively increased to 0. The complete application requires addressing a number of issues such as failure of both the communications rings, failure or out-of-service conditions of one of the relays, etc. In the above scheme, IEDs 1 and 3 do not communicate directly. A blocking pilot-aided scheme should be implemented with more security and, ideally, faster message delivery time.
This could be accomplished using a dual-ring configuration as shown below. In this configuration the following delivery times are expected at kbps if both the rings are healthy: IED 1 to IED 2: 0.
Speed, reliability and cost should be taken into account when selecting the required architecture. The CRC Alarm function is available for monitoring the communication medium noise by tracking the rate of messages failing the CRC check. The monitoring function counts all incoming messages, including messages that failed the CRC check. A separate counter adds up messages that failed the CRC check. The operand shall be configured to drive an output contact, user-programmable LED, or selected communication-based output.
Latching and acknowledging conditions - if required - should be programmed accordingly. The CRC Alarm function is available on a per-channel basis. If the messages are sent faster as a result of Direct Outputs activity, the monitoring time interval will shorten. Under certain assumptions an approximation can be made as follows.
Assuming the best case of only 1 bit error in a failed packet, having 1 failed packet for every 63 received is about equal to a BER of In the ring configuration, all messages originating at a given device should return within a pre-defined period of time. The Unreturned Messages Alarm function is available for monitoring the integrity of the communication ring by tracking the rate of unreturned messages.
This function counts all the outgoing messages and a separate counter adds the messages have failed to return. Latching and acknowledging conditions, if required, should be programmed accordingly.
The Unreturned Messages Alarm function is available on a per-channel basis and is active only in the ring configuration. This setting is defaulted to "Not Programmed" when at the factory.
This name will appear on generated reports. See the Introduction to AC Sources section at the beginning of this chapter for additional details. These settings are critical for all features that have settings dependent on current measurements.
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