GE Pqm 2 Manual

							CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–5
5.2 S1 PQMII Setup
5.2.1 Description
General settings to conf igure the PQMII are entered on this page. This includes user 
preferences, the RS485 and RS232 communication ports, loading of factory defaults, and 
user-programmable messages.
5.2.2 Preferences
PATH: SETPOINTS  S1 PQMII SETUP  PREFERENCES
•DEFAULT MESSAGE TIME: Up to 10 default messages can be selected to scan 
sequentially when the PQMII is left unattended. If no keys are pressed for the interval 
def ined by the 
DEFAULT MESSAGE TIME setting, then the currently displayed message is 
automatically overwritten by the first default message. After 3 seconds, the next 
default message in the sequence is displayed. Alarm messages will always override 
the default message display. Note that any setpoint or measured value can be 
selected as a default message.
See 3.4: Default Messages for details on default message operation and programming.
•DISPLAY FILTER CONSTANT: Display f iltering may be required in applications where 
large fluctuations in current and/or voltage are normally present . This setpoint allows 
the user to enter the PQMII filter constant to average all metered values. If the 
DISPLAY 
FILTER CONSTANT
 setpoint is set to 1, the PQMII updates the displayed metered values 
approximately every 400 ms. Therefore, the display updating equals 
DISPLAY FILTER 
CONSTANT
 × 400 ms.
 PREFERENCES [] DEFAULT MESSAGE TIME:
1.0 MINUTESRange: 0.1 to 120.0 minutes in steps of 
0.1 or OFF
MESSAGEDISPLAY FILTER
CONSTANT: 4Range: 1 to 10 in steps of 1 
						

							5–6PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5.2.3 Setpoint Access
PATH: SETPOINTS  S1 PQMII SETUP  SETPOINT ACCESS
To enable setpoint access, follow the steps outlined in the following diagram:
The factory default access code for the PQMII is 1.
If three attempts are made to enable setpoint access with an incorrect code, the value of 
the setpoint access setpoint changes to “Disabled” and the above procedure must be 
repeated.
Once setpoint access is enabled, the Program LED indicator turns on. Setpoint alterations 
are allowed as long as the Program LED indicator remains on. Setpoint access is be 
disabled and the Program LED indicator turns off when:
• The time programmed in 
S1 PQMII SETUP  SETPOINT ACCESS  SETPOINT ACCESS ON FOR 
is reached
• The control power to the PQMII is removed
• The factory setpoints are reloaded
To permanently enable the setpoint access feature, enable setpoint access and then set 
SETPOINT ACCESS ON FOR to “Unlimited”. Setpoint access remains enabled even if the control 
power is removed from the PQMII.
 SETPOINT []
ACCESSSETPOINT ACCESS:
DISABLERange: Disable, Enable
MESSAGEENTER SETPOINT
ACCESS CODE: 1Range: 1 to 999 in steps of 1
MESSAGESETPOINT ACCESS ON
FOR: 5 min.Range: 1 to 300 min. in steps of 1 or 
Unlimited
MESSAGECHANGE SETPOINT
ACCESS CODE: NoRange: No, Yes
MESSAGEENTER NEW ACCESS
CODE: 0Range: 1 to 999 in steps of 1
MESSAGERE-ENTER NEW ACCESS
CODE: 0Range: 1 to 999 in steps of 1
MESSAGEENCRYPTED SETPOINT
ACCESS CODE: 376Range: N/A
SETPOINT ACCESS:
ENABLEENTER SETPOINT
ACCESS CODE: 1SETPOINT ACCESS ON
FOR: 5 min.
SETACCEN.CDR
INCORRECT CODE
CORRECT
CODE
INCORRECT
CODE
STORE STOREENTERENTER 
						

							CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–7
NoteSetpoints can be changed via the serial ports regardless of the state of the setpoint 
access feature or the state of an input switch assigned to setpoint access.
To change the setpoint access code, enable setpoint access and perform the steps as 
outlined below:
If an attempt is made to change a setpoint when setpoint access is disabled, the 
SETPOINT 
ACCESS: DISABLED
 message is displayed to allow setpoint access to be enabled. Once 
setpoint access has been enabled, the PQMII display will return to the original setpoint 
message.
If the control option is installed and one of the switches is assigned to “Setpoint Access”, 
the setpoint access switch and the software setpoint access will act as a logical ‘AND’. That 
is, both conditions must be satisf ied before setpoint access will be enabled. Assuming the 
setpoint access switch activation is set to closed, the following flash messages will appear 
depending upon the condition present when the 
ENTER key is pressed.
5.2.4 Serial Ports
PATH: SETPOINTS  S1 PQMII SETUP  COM1 RS485 SERIAL PORT
Table 5–1: Setpoint Access Conditions
Condition Displayed Message
Access Code Switch Input
Incorrect OpenSETPOINT ACCESS OFF
ENTER ACCESS CODE
Incorrect ClosedSETPOINT ACCESS OFF
ENTER ACCESS CODE
Correct OpenCANNOT ALTER SETTING
ACCESS SW. DISABLED
Correct ClosedNEW SETPOINT
STORED
CHANGE SETPOINT
ACCESS CODE: YESENTER SETPOINT
ACCESS CODE: 4RE-ENTER SETPOINT
ACCESS CODE: 4
SAVCCCD.CDR
ENTERENTER
 COM1 RS485 []
SERIAL PORTMODBUS COMMUNICATION
ADDRESS: 1Range: 1 to 255 in steps of 1
MESSAGECOM1 BAUD RATE:
19200 BAUDRange: 1200, 2400, 4800, 9600, and 
19200 baud
MESSAGECOM1 PARITY: NONERange: None, Even, Odd 
						

							5–8PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
•MODBUS COMMUNICATION ADDRESS: Enter a unique address from 1 to 255. The 
selected address is used for all serial communication ports. Address 0 represents a 
broadcast message to which all PQMIIs will listen but not respond. Although addresses 
do not have to be sequential, no two PQMIIs can have the same address or there will 
be conflicts resulting in errors. Generally, each PQMII added to the link uses the next 
higher address, starting from address 1.
•BAUD RATE: Enter the baud rate for each port: 1200, 2400, 4800, 9600, or 19200 baud. 
All PQMIIs and the computer on the RS485 communication link must run at the same 
baud rate. The fastest response is obtained at 19200 baud. Use slower baud rates if 
noise becomes a problem. The data frame consists of 1 start bit , 8 data bits, 1 stop bit 
and a programmable parity bit . The baud rate default setting is 9600.
•PARIT Y: Enter the parity for each communication port: “Even”, “Odd”, or “None”. All 
PQMIIs on the RS485 communication link and the computer connecting them must 
have the same parity.
5.2.5 DNP 3.0 Conf iguration
PATH: SETPOINTS  S1 PQMII SETUP  DNP 3.0 CONFIGURATION
•DNP PORT: Select the appropriate PQMII port to be used for DNP protocol. The COM2 
selection is only available if T1 or T20 option is installed in the PQMII. Each port is 
conf igured as shown in 5.2.4: Serial Ports.
•DNP SLAVE ADDRESS: Enter a unique address from 0 to 255 for this particular PQMII. 
The address selected is applied to the PQMII port currently assigned to communicate 
using the DNP protocol. Although addresses do not have to be sequential, no two 
PQMIIs that are daisy chained together can have the same address or there will be 
conflicts resulting in errors. Generally each PQMII added to the link will use the next 
higher address.
•DNP TURNAROUND TIME: The turnaround time is useful in applications where the 
RS485 converter without RTS or DTR switching is being employed. A typical value for 
the delay is 30 ms to allow the transmitter to drop in the RS485 converter.
 COM2 RS485 []
SERIAL PORTCOM2 BAUD RATE:
19200 BAUDRange: 1200, 2400, 4800, 9600, and 
19200 baud
MESSAGECOM2 PARITY: NONERange: None, Even, Odd
 FRONT PANEL []
RS232 SERIAL PORTRS232 BAUD RATE:
9600 BaudRange: 1200, 2400, 4800, 9600, and 
19200 baud
MESSAGERS232 PARITY: NoneRange: None, Even, Odd
 DNP 3.0 []
CONFIGURATIONDNP PORT: NoneRange: None, COM1, COM2
DNP SLAVE ADDRESS:
0Range: 0 to 255 in steps of 1
DNP TURNAROUND TIME:
0 msRange: 0 to 100 ms in steps of 10
▲
▼
▲ 
						

							CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–9
5.2.6 Clock
PATH: SETPOINTS  S1 PQMII SETUP  CLOCK
•SET TIME/DATE: These messages are used to set the time and date for the PQMII 
software clock.
The PQMII software clock is retained for power interruptions of approximately thirty 
days. A Clock Not Set alarm can be enabled so that an alarm will occur on the loss of 
clock data. The time and date are used for all time-stamped data. If the clock has not 
been set , a “?” will appear on the right-hand side of the displayed time for all time-
stamped data. Follow the steps shown below to set the new time and date.
FIGURE 5–1: Setting the Date and Time
The time and date can also be set via Modbus communications.
 CLOCK [] SET TIME hh:mm:ss
12:00:00 am DATE Range: time format as shown
MESSAGESET DATE dd:mm:yyyy
 Nov 21, 2003Range: date format as shown
SET TIME hh:mm:ss
1 :00:00 am DATE->2SET TIME hh:mm:ss
03:0 :00 am DATE->0SET TIME hh:mm:ss
03:35:0 am DATE->0
SET TIME hh:mm:ss
03:35:55 a DATE->mNEW TIME
HAS BEEN STOREDSET DATE mm:dd:yyyy
Jan01, 1996
SET DATE mm:dd:yyyy
Oct 0 , 19961SET DATE mm:dd:yyyy
Jan 01, 1997NEW DATE
HAS BEEN STORED
MESSAGE
STORE
USE THE VALUE
KEYS TO CHANGE
THE UNDERLINED
QUANTITIES
MESSAGEMESSAGE
MESSAGEMESSAGE
MESSAGEMESSAGE
VALUE
ENTER
ENTER 
						

							5–10PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5.2.7 Calculation Parameters
PATH: SETPOINTS  S1 PQMII SETUP  CALCULATION PARAMETERS
The PQMII can be programmed to calculate metering quantities and demand by various 
methods.
•EXTRACT FUNDAMENTAL: The PQMII can be programmed to calculate all metering 
quantities using true RMS values or the fundamental component of the sampled data. 
When this setpoint is set to “Disable”, the PQMII will include all harmonic content , up to 
the 32nd harmonic, when making metering calculations. When this setpoint is set to 
“Enable”, the PQMII will extract the fundamental contribution of the sampled data only 
and use this contribution to calculate all metering quantities. Many utilities base their 
metering upon fundamental, or displacement , values. Using the fundamental 
contribution allows one to compare the quantities measured by the PQMII with the 
local utility meter.
•CURRENT DEMAND TYPE: Three current demand calculation methods are available: 
thermal exponential, block interval, and rolling interval (see the 
Demand Calculation 
Methods
 table below). The current demand for each phase and neutral is calculated 
individually.
•CURRENT DEMAND TIME INTERVAL: Enter the time period over which the current 
demand calculation is to be performed.
 CALCULATION []
PARAMETERSEXTRACT FUNDAMENTAL:
DISABLERange: Disable, Enable
MESSAGECURRENT DEMAND TYPE:
THERMAL EXPONENTIALRange: Thermal Exponential, Rolling 
Interval, Block Interval
MESSAGECURRENT DEMAND TIME
INTERVAL: 30 min.Range: 5 to 180 min. in steps of 1
MESSAGEPOWER DEMAND TYPE:
THERMAL EXPONENTIALRange: Thermal Exponential, Rolling 
Interval, Block Interval
MESSAGEPOWER DEMAND TIME
INTERVAL: 30 min.Range: 5 to 180 min. in steps of 1
MESSAGEENERGY COST PER kWh
10.00 centsRange: 0.01 to 500.00 cents in steps of 
0.01
MESSAGETARIFF PERIOD 1
START TIME: 0 min.Range: 0 to 1439 min. in steps of 1
MESSAGETARIFF PERIOD 1 COST
PER kWh: 10.00 centsRange: 0.01 to 500.00 cents in steps of 
0.01
MESSAGETARIFF PERIOD 2
START TIME: 0 min.Range: 0 to 1439 min. in steps of 1
MESSAGETARIFF PERIOD 2 COST
PER kWh: 10.00 centsRange: 0.01 to 500.00 cents in steps of 
0.01
MESSAGETARIFF PERIOD 3
START TIME: 0 min.Range: 0 to 1439 min. in steps of 1
MESSAGETARIFF PERIOD 3 COST
PER kWh: 10.00 centsRange: 0.01 to 500.00 cents in steps of 
0.01 
						

							CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–11
•POWER DEMAND TYPE: Three real/reactive/apparent power demand calculation 
methods are available: thermal exponential, block interval, and rolling interval (see the 
Demand Calculation Methods table below). The three phase real/reactive/apparent 
power demand is calculated.
•POWER DEMAND TIME INTERVAL: Enter the time period over which the power 
demand calculation is to be performed.
•ENERGY COST PER kWh: Enter the cost per kWh that is charged by the local utility.
•TARIFF PERIOD START TIME: Enter the start time for each of the three tariff period 
calculations.
•TARIFF PERIOD COST PER kWh: Enter the cost per kWh for each of the three tariff 
periods.Table 5–2: Demand Calculation Methods
Method Description
Thermal 
ExponentialThis selection emulates the action of an analog peak-recording 
thermal demand meter. The PQMII measures the average quantity 
(RMS current , real power, reactive power, or apparent power) on each 
phase every minute and assumes the circuit quantity remains at this 
value until updated by the next measurement . It calculates the 
“thermal demand equivalent” based on the following equation:
(EQ 5.1)
where:d = demand after applying input quantity for time t (in min.)D = input quantity (constant)k = 2.3 / thermal 90% response time
The graph above shows the thermal response characteristic for a 
thermal 90% response time of 15 minutes. A setpoint establishes the 
time to reach 90% of a steady-state value, just as the response time 
of an analog instrument (a steady-state value applied for twice the 
response time will indicate 99% of the value).
Block IntervalThis selection calculates a linear average of the quantity (RMS 
current , real power, reactive power, or apparent power) over the 
programmed demand 
TIME INTERVAL. Each new value of demand 
becomes available at the end of each time interval.
Rolling IntervalThis selection calculates a linear average of the quantity (RMS 
current , real power, reactive power, or apparent power) over the 
programmed demand 
TIME INTERVAL (in the same way as Block 
Interval). The value is updated every minute and indicates the 
demand over the time interval just preceding the time of update.
dt()D1ekt –– () =
Time(min) 0 20 40
60
80 100
0 3 6 9 12 15 18 21 24 27 30
Demand (%) 
						

							5–12PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5.2.8 Clear Data
PATH: SETPOINTS  S1 PQMII SETUP  CLEAR DATA
•CLEAR ENERGY VALUES: Enter “Yes” to clear all the energy used data in the A1 
METERING 
 ENERGY actual values subgroup. The TIME OF LAST RESET date under 
the same subgroup is updated upon issuing this command.
•CLEAR MAX DEMAND VALUES: Enter “Yes” to clear all the maximum power and 
current demand data under the actual values subgroup 
A1 METERING  DEMAND. 
The time and date associated with each message will be updated to the current date 
upon issuing this command.
•CLEAR ALL DEMAND VALUES: Enter “Yes” to clear all the power and current demand 
data under the actual values subgroup 
A1 METERING  DEMAND. The time and date 
associated with each message will be updated to the current date upon issuing this 
command.
•CLEAR MIN/MAX CURRENT VALUES: Enter “Yes” to clear all the minimum/maximum 
current data under the actual values subgroup 
A1 METERING  CURRENT. The time 
and date associated with each message will be updated to the current date upon 
issuing this command.
•CLE AR MIN/MAX VOLTAGE VALUES: Enter “Yes” to clear all the minimum/maximum 
voltage data under the actual values subgroup 
A1 METERING  VOLTAGE. The time 
 CLEAR DATA [] CLEAR ENERGY
VALUES: NORange: Yes, No
MESSAGECLEAR MAX DEMAND
VALUES: NORange: Yes, No
MESSAGECLEAR ALL DEMAND
VALUES: NORange: Yes, No
MESSAGECLEAR MIN/MAX
CURRENT VALUES: NORange: Yes, No
MESSAGECLEAR MIN/MAX
VOLTAGE VALUES: NORange: Yes, No
MESSAGECLEAR MIN/MAX
POWER VALUES: NORange: Yes, No
MESSAGECLEAR MIN/MAX
FREQUENCY VALUES: NORange: Yes, No
MESSAGECLEAR MAX THD
VALUES: NORange: Yes, No
MESSAGECLEAR PULSE INPUT
VALUES: NORange: Yes, No
MESSAGECLEAR EVENT RECORD:
NORange: Yes, No
MESSAGECLEAR VOLTAGE DIST.
RECORD: NORange: Yes, No
MESSAGELOAD FACTORY DEFAULT
SETPOINTS: NORange: Yes, No 
						

							CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–13
and date associated with each message will be updated to the current date upon 
issuing this command.
•CLEAR MIN/MAX POWER VALUES: Enter “Yes” to clear all the minimum/maximum 
power data under the actual values subgroup 
A1 METERING  POWER. The time and 
date associated with each message will be updated to the current date upon issuing 
this command.
•CLEAR MIN/MAX FREQUENCY VALUES: Enter “Yes” to clear all the minimum/maximum 
frequency data under the actual values subgroup 
A1 METERING  FREQUENCY. The 
time and date associated with each message will be updated to the current date upon 
issuing this command.
•CLEAR MAX THD VALUES: Enter “Yes” to clear all the max THD data under the actual 
values subgroup 
A3 POWER ANALYSIS  TOTAL HARMONIC DISTORTION. The time and 
date associated with each message will be updated to the current date upon issuing 
this command.
•CLEAR PULSE INPUT VALUES: Enter “Yes” to clear all the pulse input values under the 
actual values subgroup 
A1 METERING  PULSE INPUT. The time and date associated 
with this message will be updated to the current date upon issuing this command.
•CLEAR EVENT RECORD: Enter “Yes” to clear all of the events in the Event Record. This 
will eliminate all previous events from the Event Record and create a Clear Events 
event as the new event number 1. The Event Recorder can be cleared only if it is 
enabled in 
S1 PQMII SETUP  EVENT RECORDER  EVENT RECORDER OPERATION.
The 
CLEAR EVENT RECORD command takes six seconds to complete, during which no new 
events will be logged. Do not cycle power to the unit while the event record is being 
cleared.
•CLEAR VOLTAGE DIST. RECORD: Enter “Yes” to clear all of the events in the Voltage 
Disturbance Record.
•LOAD FACTORY DEFAULT SETPOINTS: When the PQMII is shipped from the factory all 
setpoints will be set to factory default values. These settings are shown in the setpoint 
message reference f igures. To return a PQMII to these known setpoints select “Yes” 
and press the key while this message is displayed. The display will then warn that all 
setpoints will be lost and will ask whether to continue. Select yes again to reload the 
setpoints. It is a good idea to f irst load factory defaults when replacing a PQMII to 
ensure all the settings are defaulted to reasonable values.
5.2.9 Event Recorder
PATH: SETPOINTS  S1 PQMII SETUP  EVENT RECORDER
The Event Recorder can be disabled or enabled using the EVENT RECORDER OPERATION 
setpoint . When the Event Recorder is disabled no new events are recorded. When the 
Event Recorder is enabled new events are recorded with the 150 most recent events 
displayed in 
A3 POWER ANALYSIS  EVENT RECORDER. Refer to 6.4.4 Event Recorder for 
the list of possible events. All data within the Event Recorder is stored in non-volatile 
memory.
 EVENT RECORDER [] EVENT RECORDER
OPERATION: DISABLERange: Enable, Disable 
						

							5–14PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5.2.10 Trace Memory
PATH: SETPOINTS  S1 PQMII SETUP  TRACE MEMORY
The Trace Memory feature involves a separate sampling data stream. All input channels 
are sampled continuously at a rate of 16 times per cycle. Using a single-cycle block 
interval, the input samples are checked for trigger conditions as per the trigger setpoints 
below. Note that the normal sampling burst (64 samples/cycle, 2 cycles) used for all 
 TRACE MEMORY [] TRACE MEMORY USAGE:
1 x 36 cyclesRange: 1 x 36, 2 x 18, 3 x 12 cycles
MESSAGETRACE MEMORY TRIGGER
MODE: ONE SHOTRange: One Shot , Retrigger
MESSAGEIa OVERCURRENT TRIG
LEVEL: OFF % CTRange: 1 to 150% of CT in steps of 1 or 
OFF
MESSAGEIb OVERCURRENT TRIG
LEVEL: OFF % CTRange: 1 to 150% of CT in steps of 1 or 
OFF
MESSAGEIc OVERCURRENT TRIG
LEVEL: OFF % CTRange: 1 to 150% of CT in steps of 1 or 
OFF
MESSAGEIn OVERCURRENT TRIG
LEVEL: OFF % CTRange: 1 to 150% of CT in steps of 1 or 
OFF
MESSAGEVa OVERVOLTAGE TRIG
LEVEL: OFF % NOMINALRange: 20 to 150% of Nominal in steps 
of 1 or OFF
MESSAGEVb OVERVOLTAGE TRIG
LEVEL: OFF % NOMINALRange: 20 to 150% of Nominal in steps 
of 1 or OFF
MESSAGEVc OVERVOLTAGE TRIG
LEVEL: OFF % NOMINALRange: 20 to 150% of Nominal in steps 
of 1 or OFF
MESSAGEVa UNDERVOLTAGE TRIG
LEVEL: OFF % NOMINALRange: 20 to 150% of Nominal in steps 
of 1 or OFF
MESSAGEVb UNDERVOLTAGE TRIG
LEVEL: OFF % NOMINALRange: 20 to 150% of Nominal in steps 
of 1 or OFF
MESSAGEVc UNDERVOLTAGE TRIG
LEVEL: OFF % NOMINALRange: 20 to 150% of Nominal in steps 
of 1 or OFF
MESSAGESWITCH INPUT A TRIG:
OFFRange: Off, Open-to-Closed,
Closed-to-Open
MESSAGESWITCH INPUT B TRIG:
OFFRange: Off, Open-to-Closed,
Closed-to-Open
MESSAGESWITCH INPUT C TRIG:
OFFRange: Off, Open-to-Closed,
Closed-to-Open
MESSAGESWITCH INPUT D TRIG:
OFFRange: Off, Open-to-Closed,
Closed-to-Open
MESSAGETRACE MEMORY TRIGGER
DELAY: 0 cyclesRange: 0 to 30 cycles in steps of 2
MESSAGETRACE MEMORY TRIGGER
RELAY: OFFRange: Off, Aux1, Aux2, Aux3, Alarm