GE Pqm 2 Manual
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CHAPTER 5: SETPOINTS PQMII POWER QUALITY METER – INSTRUCTION MANUAL5–25 When the Analog Output parameter is set to “Serial Control”, the analog output(s) reflect a value in proportion to the serial value written to a specif ic register within the PQMII memory map. The locations are as described in the table below. 5.3.3 Analog Input PATH: SETPOINTS S2 SYSTEM SETUP ANALOG INPUT Analog Output Modbus Register Register Analog Output 1 Analog Output 1 Serial Value 1067 Analog Output 2 Analog Output 2 Serial Value 106F Analog Output 3 Analog Output 3 Serial Value 1077 Analog Output 4 Analog Output 4 Serial Value 107F ANALOG INPUT [] ANALOG IN MAIN/ALT SELECT RELAY: OFFRange: Aux1, Aux2, Aux3, Off. MESSAGEANALOG IN MAIN NAME: MAIN ANALOG INPUTRange: 20 alphanumeric characters MESSAGEANALOG IN MAIN UNITS: UnitsRange: 10 alphanumeric characters MESSAGEMAIN 4 mA VALUE: 0Range: 0 to 65000 in steps of 1 MESSAGEMAIN 20 mA VALUE: 0Range: 0 to 65000 in steps of 1 MESSAGEANALOG IN MAIN: RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEANALOG IN MAIN LEVEL: 100 UnitsRange: 0 to 65000 in steps of 1 MESSAGEANALOG IN MAIN DELAY: 10.0 sRange: 0.5 to 600.0 s in steps of 1 MESSAGEANALOG IN ALT NAME: ALT ANALOG INPUTRange: 20 alphanumeric characters MESSAGEANALOG IN ALT UNITS: UnitsRange: 10 alphanumeric characters MESSAGEALT 4 mA VALUE: 0Range: 0 to 65000 in steps of 1 MESSAGEALT 20 mA VALUE: 0Range: 0 to 65000 in steps of 1 MESSAGEANALOG IN ALT: RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEANALOG IN ALT LEVEL: 100Range: 0 to 65000 in steps of 1 MESSAGEANALOG IN ALT DELAY: 10.0 sRange: 0.5 to 600.0 s in steps of 1
5–26PQMII POWER QUALITY METER – INSTRUCTION MANUAL CHAPTER 5: SETPOINTS •ANALOG IN MAIN/ALT SELECT RELAY: Select the output relay that is to be used to multiplex two analog input signals to the PQMII. If this setpoint is “Off ”, the MAIN analog input setpoints will be used unless a switch input assigned to SELECT ANALOG INPUT is activated. For more information on multiplexing two analog inputs using one of the PQMII output relays, refer to 2.2.8 Switch Inputs (Optional). •ANALOG IN MAIN/ALT NAME: This message allows the user to input a user def ined 20 character alphanumeric name for the MAIN and ALT analog inputs. To enter the names, perform the following steps: Allow access to setpoints by enabling setpoint access. Select the Analog Input name message display under the S2 SYSTEM SETUP ANALOG INPUT setpoints group. Use the VA L U E keys to change the blinking character over the cursor. A space is selected like a character. Press the ENTER key to store the character and advance the cursor to the next position. To skip over a character press the ENTER key. Continue entering characters and spaces until the desired message is displayed. If a character is entered incorrectly, press the ENTER key repeatedly until the cursor returns to the incorrect position and re-enter the character. •ANALOG IN MAIN/ALT UNITS: This message allows the user to input a user def ined 10 character alphanumeric name for the MAIN and ALT units. To enter the units, perform the same steps as shown for analog input name. •MAIN/ALT 4 mA VALUE: This message appears for each analog input and allows the user to assign a numeric value which corresponds to the 4 mA end of the 4 to 20 mA signal range. •MAIN/ALT 20 mA VALUE: This message appears for each analog input and allows the user to assign a numeric value which corresponds to the 20 mA end of the 4 to 20 mA signal range. •ANALOG IN MAIN/ALT RELAY: Analog input MAIN and ALT detection can either be disabled, used as an alarm or as a process control. Set this setpoint to OFF if the feature is not required. Selecting “Alarm” causes the alarm relay to activate and displays an alarm message whenever a MAIN or ALT analog input condition exists. Selecting an auxiliary relay causes the selected auxiliary relay to activate with no message displayed. This is intended for process control. •ANALOG IN MAIN/ALT LEVEL: When the measured MAIN or ALT analog input meets or exceeds the level set by this setpoint , a MAIN or ALT analog input condition will occur. •ANALOG IN MAIN/ALT DELAY: If the MAIN or ALT analog input meets or exceeds the ANALOG IN MAIN/ALT LEVEL setpoint value and remains this way for the time delay programmed in this setpoint , an analog input condition will occur. If the ANALOG IN MAIN/ALT RELAY setpoint is set to “Alarm”, the alarm relay will activate and the ANALOG IN MAIN/ALT ALARM message will be displayed. If the setpoint ANALOG IN MAIN/ALT RELAY is set to “Aux1”, “Aux2”, or “Aux3”, the respective auxiliary relay will activate and no message will be displayed after the delay expires.
CHAPTER 5: SETPOINTS PQMII POWER QUALITY METER – INSTRUCTION MANUAL5–27 5.3.4 Switch Inputs PATH: SETPOINTS S2 SYSTEM SETUP SWITCH INPUT A(D) There are four (4) Switch Inputs, denoted as Switch Input A, B, C, and D. •SWITCH A(D) NAME: This message allows the user to input a user def ined 20- character alphanumeric name for each switch input . To enter a switch name, perform the following steps: Allow access to setpoints by enabling setpoint access. Select the switch input message display under the subgroup S2 SYSTEM SETUP SWITCH INPUT A. Use the VA L U E keys to change the blinking character over the cursor. A space is selected like a character. Press the ENTER key to store the character and advance the cursor to the next position. To skip over a character press the ENTER key. Continue entering characters and spaces until the desired message is displayed. If a character is entered incorrectly, press the ENTER key repeatedly to return the cursor to the position of the error, and re-enter the character. •SWITCH A(D) FUNCTION: Select the required function for each switch input . See Switch Inputs (Optional) on page 2–12 for a description of each function. The “New Demand Period”, “Setpoint Access”, “Select Analog Out”, “Select Analog In”, “Pulse Input 1, “Pulse Input 2, “Pulse Input 3, “Pulse Input 4, “Clear Energy” and “Clear Demand” functions can be assigned to only one switch input at a time. If an attempt is made to assign one of these functions to more than one input , the THIS SWITCH FUNCTION ALREADY ASSIGNED flash message will be displayed. If an attempt is made via the serial port , no flash message will appear but an error code will be returned. The range of functions for the SWITCH A(D) FUNCTION setpoint is: Not Used, Alarm, Aux1, Aux2, Aux3, New Demand Period, Setpoint Access, Select Analog Out , Select Analog In, Pulse Input 1, Pulse Input 2, Pulse Input 3, Pulse Input 4, Clear Energy, Clear Demand. •SWITCH A(D) ACTIVATION: This setpoint determines the operating sequence of the switch. Select “Open” if a switch activation is required for a switch input transition of closed to open. Select “Closed” if a switch activation is required for a switch input transition of open to closed. •SWITCH A(D) TIME DELAY: If the switch input function is assigned to “Alarm”, “Aux1”, “Aux2”, or “Aux3”, this message will be displayed. Enter the required time delay in this message. SWITCH INPUT A [] SWITCH A NAME: Switch Input ARange: 20 alphanumeric characters MESSAGESWITCH A FUNCTION: NOT USEDRange: see description below MESSAGESWITCH A ACTIVATION: OPENRange: Open, Closed MESSAGESWITCH A TIME DELAY: 0.0 sRange: 0.0 to 600.0 s in steps of 1
5–28PQMII POWER QUALITY METER – INSTRUCTION MANUAL CHAPTER 5: SETPOINTS 5.3.5 Pulse Output PATH: SETPOINTS S2 SYSTEM SETUP PULSE OUTPUT •kWh / kvarh / kVAh PULSE OUTPUT RELAY: Five pulse output parameters can be assigned to the alarm or auxiliary relays. They are positive kWh, negative kWh, positive kvarh, negative kvarh, and kVAh. Enter the desired relay to which each parameter is assigned. Select “Off ” if a particular output parameter is not required. •KWh / kvarh / kVAh PULSE OUTPUT INTERVAL: Enter the interval for the appropriate quantity at which the relay pulse will occur. The pulse width is set by the PULSE WIDTH setpoint described below. If the pulse interval is set to “100 kWh”, one pulse will indicate that 100kWh has been accumulated. •PULSE WIDTH: This setpoint determines the duration of each pulse as shown in the figure below. PULSE OUTPUT [] POS kWh PULSE OUTPUT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEPOS kWh PULSE OUTPUT INTERVAL: 100 kWhRange: 1 to 65000 kWh in steps of 1 MESSAGENEG kWh PULSE OUTPUT RELAY: OffRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGENEG kWh PULSE OUTPUT INTERVAL: 100 kWhRange: 1 to 65000 kWh in steps of 1 MESSAGEPOS kvarh PULSE OUTPUT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEPOS kvarh PULSE OUTPUT INTERVAL: 100 kvarh Range: 1 to 65000 kvarh in steps of 1 MESSAGENEG kvarh PULSE OUTPUT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGENEG kvarh PULSE OUTPUT INTERVAL: 100 kvarhRange: 1 to 65000 kvarh in steps of 1 MESSAGEkVAh PULSE OUTPUT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEkVAh PULSE OUTPUT INTERVAL: 100 kVAhRange: 1 to 65000 kVAh in steps of 1 MESSAGEPULSE WIDTH: 100 msRange: 100 to 2000 ms in steps of 10
CHAPTER 5: SETPOINTS PQMII POWER QUALITY METER – INSTRUCTION MANUAL5–29 FIGURE 5–2: Pulse Output Timing 5.3.6 Pulse Input PATH: SETPOINTS S2 SYSTEM SETUP PULSE INPUT •PULSE INPUT UNITS: This message allows the user to input a user def ined 10 character alphanumeric unit for the pulse inputs (i.e. kWh). The unit will be used by all pulse inputs including the totalized value. To enter the unit , perform the following steps: Allow access to setpoints by enabling setpoint access. Select the PULSE INPUT UNITS setpoint. Use the VA L U E keys to change the blinking character over the cursor. A space is selected like a character. Press the ENTER key to store the character and advance the cursor to the next position. To skip over a character press the ENTER key. PULSE WIDTH OPEN CLOSEDOPEN OPEN CLOSED CLOSED Normally Open (NO) Contact Normally Closed (NC) Contact STATUS STATUSSTATUS PULSE INPUT [] PULSE INPUT UNITS: UnitsRange: 10 alphanumeric characters MESSAGEPULSE INPUT 1 VALUE: 1 UnitsRange: 0 to 65000 in steps of 1 MESSAGEPULSE INPUT 2 VALUE: 1 UnitsRange: 0 to 65000 in steps of 1 MESSAGEPULSE INPUT 3 VALUE: 1 UnitsRange: 0 to 65000 in steps of 1 MESSAGEPULSE INPUT 4 VALUE: 1 UnitsRange: 0 to 65000 in steps of 1 MESSAGEPULSE INPUT TOTAL: 1+2+3+4Range: 1+2, 1+3, 1+4, 2+3, 2+4, 3+4, 1+2+3, 1+3+4, 1+2+4, 2+3+4, 1+2+3+4
5–30PQMII POWER QUALITY METER – INSTRUCTION MANUAL CHAPTER 5: SETPOINTS Continue entering characters and spaces until the desired message is displayed. If a character is entered incorrectly, press the ENTER key repeatedly until the cursor returns to the incorrect position and re-enter the character. •PULSE INPUT 1(4) VALUE: Enter a value in this setpoint that will be equivalent to 1 pulse input on the switch input assigned to Pulse Input 1(4); i.e., 1 pulse = 100 kWh. The accumulated value is displayed in actual values under A1 METERING PULSE INPUT COUNTERS PULSE INPUT 1(4). •PULSE INPUT TOTAL: This setpoint def ines which pulse inputs to add together. For example, if the selection is this setpoint is “1+2+3”, the PULSE INPUT 1, PULSE INPUT 2 and PULSE INPUT 3 values shown in A1 METERING PULSE INPUT COUNTERS PULSE INPUT 1(4) will be added together and displayed in A1 METERING PULSE INPUT COUNTERS PULSE IN 1+2+3. 5.3.7 Data Logger PATH: SETPOINTS S2 SYSTEM SETUP DATA LOGGER The data logger operation is only conf igurable using the EnerVista PQMII Setup Software. On occasions it may be necessary to stop the data loggers using the PQMII keypad and then a computer to extract the logged information. The STOP DATA LOG 1(2) setpoints allow the user to stop the respective data log. These setpoints also display the current status of the respective data logger. Refer to 7.6 Data Logger Implementation for a detailed implementation description. 5.3.8 Voltage Disturbance PATH: SETPOINTS S2 SYSTEM SETUP VOLTAGE DIST. RECORDER •SAG LEVEL: When the voltage on any phase drops below this level a Sag condition occurs. During this condition, the average voltage and duration of the disturbance are calculated. The condition ends when the level increases to at least 10% of nominal plus pickup of the SAG LEVEL setting. This hysteresis is implemented to avoid nuisance alarms due to voltage fluctuations. If the duration logged was less then or equal to 1 minute an event with a sag type will be logged. If the duration was greater then 1 minute an event with an undervoltage type will be logged when this feature is conf igured. •SWELL LEVEL: When the voltage on any phase increases above this level a swell condition occurs. During a swell condition the average voltage and duration of the DATA LOGGER [] STOP DATA LOG 1: NO (STOPPED)Range: No, Yes MESSAGESTOP DATA LOG 2: NO (STOPPED)Range: No, Yes VOLTAGE DIST. [] RECORDERSAG LEVEL ≤ 80% NominalRange: 20 to 90% of Nominal VT in steps of 1 MESSAGESWELL LEVEL ≥ 130% NominalRange: 110 to 150% of Nominal VT in steps of 1
CHAPTER 5: SETPOINTS PQMII POWER QUALITY METER – INSTRUCTION MANUAL5–31 disturbance are calculated. To end a Swell condition the level must decrease to pickup minus 10% of nominal of the SWELL LEVEL setting. This hysteresis is implemented to avoid nuisance alarms due to voltage fluctuations. If the duration logged was less then or equal to 1 minute an event with a swell type will be logged. If the duration was greater then 1 minute an event with an overvoltage type will be logged when this feature is conf igured.
5–32PQMII POWER QUALITY METER – INSTRUCTION MANUAL CHAPTER 5: SETPOINTS 5.4 S3 Output Relays 5.4.1 Description Output relay operation in the PQMII occurs in either ‘failsafe’ or ‘non-failsafe’ modes, as def ined below: •Non-failsafe: The relay coil is not energized in its non-active state. Loss of control power will cause the relay to remain in the non-active state. That is, a non-failsafe alarm relay will not cause an alarm on loss of control power. Contact conf iguration in the Wiring Diagrams is shown with relays programmed non-failsafe and control power not applied. •Failsafe: The relay coil is energized in its non-active state. Loss of control power will cause the relay to go into its active state. That is, a failsafe alarm relay will cause an alarm on loss of control power. Contact conf iguration is opposite to that shown in the Wiring Diagrams for relays programmed as failsafe when control power is applied. 5.4.2 Alarm Relay PATH: SETPOINTS S3 OUTPUT RELAYS ALARM RELAY •ALARM OPERATION: The terms ‘failsafe’ and ‘non-failsafe’ are def ined above as implemented in the PQMII. If an alarm is required when the PQMII is not operational due to a loss of control power, select failsafe operation. Otherwise, choose non- failsafe. •ALARM ACTIVATION: If an alarm indication is required only while an alarm is present , select unlatched. Once the alarm condition disappears, the alarm and associated message automatically clear. To ensure all alarms are acknowledged, select latched. Even if an alarm condition is no longer present , the alarm relay and message can only be cleared by pressing the key or by sending the reset command via the computer. 5.4.3 Auxiliary Relays PATH: SETPOINTS S3 OUTPUT RELAYS AUXILIARY RELAY 1(3) The PQMII contains three (3) auxiliary relays, denoted as Aux1 through Aux3. The terms ‘failsafe’ and ‘non-failsafe’ are def ined in the previous section. ALARM RELAY [] ALARM OPERATION: NON-FAILSAFERange: Non-failsafe, Failsafe MESSAGEALARM ACTIVATION: UNLATCHEDRange: Unlatched, Latched AUXILIARY [] RELAY 1AUX1 OPERATION: NON-FAILSAFERange: Non-failsafe, Failsafe MESSAGEAUX1 ACTIVATION: UNLATCHEDRange: Unlatched, Latched
CHAPTER 5: SETPOINTS PQMII POWER QUALITY METER – INSTRUCTION MANUAL5–33 •AUXILIARY 1(3) OPERATION: If an output is required when the PQMII is not operational due to a loss of control power, select failsafe auxiliary operation, otherwise, choose non-failsafe. •AUXILIARY 1(3) ACTIVATION: If an auxiliary relay output is only required while the selected conditions are present , select “Unlatched”. Once the selected condition disappears, the auxiliary relay returns to the non-active state. To ensure all conditions are acknowledged, select “Latched”. If the condition is no longer present , the auxiliary relay can be reset by pressing the key or by sending the reset command via the computer. NoteThe PQMII uses a priority system to determine which function will control the relays if they happen to be assigned to more than one function. The Pulse Output function has the highest activation priority, followed by the Analog Input Main/Alt Select functions. The alarm functions have the lowest priority. For example, if a relay is assigned to an alarm function and also assigned to one of the pulse output parameters, it only responds to the pulse output function.
5–34PQMII POWER QUALITY METER – INSTRUCTION MANUAL CHAPTER 5: SETPOINTS 5.5 S4 Alarms/Control 5.5.1 Current/Voltage Alarms PATH: SETPOINTS S4 ALARMS/CONTROL CURRENT/VOLTAGE CURRENT/ [] VOLTAGEDETECT I/V ALARMS USING PERCENTAGE: NORange: No, Yes MESSAGEPHASE UNDERCURRENT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEPHASE UNDERCURRENT LEVEL ≤ 100 ARange: 1 to 12000 A in steps of 1, or 1 to 100% of CT in steps of 1, set by the DETECT I/V ALARMS USING PERCENTAGE value. MESSAGEPHASE UNDERCURRENT DELAY: 10.0 sRange: 0.5 to 600.0 s in steps of 0.5 MESSAGEDETECT UNDERCURRENT WHEN 0A: NORange: No, Yes MESSAGEPHASE OVERCURRENT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEPHASE OVERCURRENT LEVEL ≥ 100 ARange: 1 to 12000 A in steps of 1, or 1 to 150% of CT in steps of 1, set by the DETECT I/V ALARMS USING PERCENTAGE value. MESSAGEPHASE OVERCURRENT DELAY: 10.0 sRange: 0.5 to 600.0 s in steps of 0.5 MESSAGEPHASE OVERCURRENT ACTIVATION: AVERAGERange: Average, Maximum MESSAGENEUTRAL OVERCURRENT RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGENEUTRAL OVERCURRENT LEVEL ≥ 100 ARange: 1 to 12000 A in steps of 1, or 1 to 150% of CT in steps of 1, set by the DETECT I/V ALARMS USING PERCENTAGE value. MESSAGENEUTRAL OVERCURRENT DELAY: 10.0 sRange: 0.5 to 600.0 s in steps of 0.5 MESSAGEUNDERVOLTAGE RELAY: OFFRange: Alarm, Aux1, Aux2, Aux3, Off MESSAGEUNDERVOLTAGE LEVEL ≤ 100 VRange: 20 to 65000 V in steps of 1, or 20 to 100% of VT in steps of 1, set by the DETECT I/V ALARMS USING PERCENTAGE value. MESSAGEUNDERVOLTAGE DELAY: 10.0 sRange: 0.5 to 600.0 s in steps of 0.5 MESSAGEPHASES REQ’D FOR U/V OPERATION: ANY ONERange: Any One, Any Two, All Three. Not seen when VT WIRING is set to “Single Phase Direct”