GE Pqm 2 Manual

							PQMII POWER QUALITY METER  – INSTRUCTION MANUAL3–1
PQMII Power Quality Meter
Chapter 3: Operation
Digital Energy
Op er ation
3.1 Front Panel and Display
3.1.1 Front Panel
The local operator interface for setpoint entry and monitoring of measured values is 
through the front panel as shown in the f igure below. Control keys are used to select the 
appropriate message for entering setpoints or displaying measured values. Alarm and 
status messages are automatically displayed when required. Indicator LEDs provide 
important status information at all times. An RS232 communications port is also available 
for uploading or downloading information to the PQMII.
3.1.2 Display
All messages are displayed in English on the 40-character liquid crystal display. This 
display is visible under varied lighting conditions. When the keypad and display are not 
actively being used, the screen displays a default status message. This message appears if 
no key has been pressed for the time programmed in the 
S1 PQMII SETUP  PREFERENCES  
DEFAULT MESSAGE TIME
 setpoint . Note that alarm condition messages automatically override 
the default messages.
FIGURE 3–1: Display (example)
819761A6.CDR 
						

							3–2PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 3: OPERATION
3.2 LED Indicators
3.2.1 Description
The LED status indicators provide a quick indication of the overall status of the PQMII. 
These indicators illuminate if an alarm is present , if setpoint access is enabled, if the PQMII 
is in simulation mode, or if there is a problem with the PQMII itself.
FIGURE 3–2: LED Indicators
3.2.2 Status
•Alarm: When an alarm condition exists, the Alarm LED indicator will flash.
•Program: The Program LED indicator is on when setpoint access is enabled.
•Simulation: The Simulation LED indicator will be on when the PQMII is using 
simulated values for current , voltage, analog input , switches and analog outputs. 
While in simulation mode, the PQMII will ignore the measured parameters 
detected at its inputs and will use the simulated values stored in the 
S5 TESTING  
SIMULATION
 setpoints group.
•Self-Test: Any abnormal condition detected during PQMII self-monitoring, such as 
a hardware failure, causes the Self Test LED indicator to be on. Loss of control 
power to the PQMII also causes the Self Test LED indicator to turn on, indicating 
that no metering is present .
3.2.3 Communicate
The Communicate LED indicators monitor the status of the RS485 communication ports. 
When no serial data is being received through the rear serial ports terminals, the RX1/2 
LED indicators are off. This situation occurs if there is no connection, the serial wires 
become disconnected, or the master computer is inactive. If there is activity on the serial 
port but the PQMII is not receiving valid messages for its internally programmed address, 
the TX1/2 LED indicators remain off. This condition can be caused by incorrect message 
formats (such as baud rate or framing), reversed polarity of the two RS485 twisted-pair 
connections, or the master not sending the currently programmed PQMII address. If the 
PQMII is being periodically addressed with a valid message, the RX1/2 LED indicator will 
turn on followed by the TX1/2 LED indicator.
•TX1: The PQMII is transmitting information via the COM1 RS485 communications 
port when lit .
•RX1: The PQMII is receiving information via the COM1 RS485 communications port 
when lit . 
						

							CHAPTER 3: OPERATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL3–3
•TX2: The PQMII is transmitting information via the COM2 RS485 communications 
port when lit .
•RX2: The PQMII is receiving information via the COM2 RS485 communications port 
when lit .
3.2.4 Relays
The status of the output relays is displayed with these LED indicators.
•Alarm: The Alarm relay is intended for general purpose alarm outputs. This 
indicator will be on while the Alarm relay is operating. When the condition clears, 
the Alarm LED indicator turns off. If the alarm relay has been programmed as 
“Latched”, the alarm condition can only be cleared by pressing the 
RESET key or by 
issuing a computer reset command.
•Aux1: The Aux 1 relay is intended for control and customer specif ic requirements. 
The Aux1 LED indicator is on while the Auxiliary 1 relay is operating.
•Aux2: The Aux 2 relay is intended for control and customer specif ic requirements. 
The Aux2 LED indicator is on while the Auxiliary 2 relay is operating.
•Aux3: The Aux 3 relay is intended for control and customer specif ic requirements. 
The Aux3 LED indicator is on while the Auxiliary 3 relay is operating. 
						

							3–4PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 3: OPERATION
3.3 Keypad
3.3.1 Description
The front panel keypad allows direct access to PQMII functionality. The keys are used to 
navigate through message pages, allowing the user to modify settings and view actual 
values from the device location.
3.3.2 Menu Key
Setpoints and actual values are arranged into two distinct groups of messages. The MENU 
key selects the main setpoints or actual values page. Pressing 
MENU while in the middle of 
a setpoints or actual values page returns the display to the main setpoints or actual values 
page. The 
MESSAGE keys select messages within a page.
3.3.3 Escape Key
Pressing the ESCAPE key during any setpoints or actual values message returns the user to 
the previous message level. Continually pressing 
ESCAPE will return the user back to the 
main setpoints or actual values page.
3.3.4 Enter Key
When programming setpoints, enter the new value by using the VA L U E keys, followed by 
the 
ENTER key. Setpoint programming must be enabled for the ENTER key to store the 
edited value. An acknowledgment message will flash if the new setpoint is successfully 
saved in non-volatile memory. The 
ENTER key is also used to add and remove user def ined 
default messages. Refer to 3.4: Default Messages for details.
3.3.5 Reset Key
The RESET key is used to clear the latched alarm and/or auxiliary conditions. Upon 
pressing the key, the PQMII will perform the appropriate action based on the condition 
present as shown in the table below.
Table 3–1: Reset Key Actions
Condition Present Message Displayed PQMII Action Performed
None None No action taken
Alarm
RESET NOT POSSIBLE
ALARM STILL PRESENT
Alarm LED indicators and 
alarm relay remain on 
because condition is still 
present 
						

							CHAPTER 3: OPERATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL3–5
The RESET key, along with the ENTER key, is also used to remove user def ined default 
messages. Refer to 3.4: Default Messages further details.
3.3.6 Message Keys
Use the MESSAGE keys to move between message groups within a page. The MESSAGE 
DOWN
 key moves toward the end of the page and the MESSAGE UP key moves toward the 
beginning of the page. A page header message will appear at the beginning of each page 
and a page footer message will appear at the end of each page. To enter a subgroup, 
press the 
MESSAGE RIGHT key. To back out of the subgroup, press the MESSAGE LEFT key. Aux Relay
RESET NOT POSSIBLE
AUX CONDITION 
EXISTSAuxiliary LED indicator(s) and 
aux relay(s) remain on 
because condition is still 
present
Alarm and Aux Relay
RESET NOT POSSIBLE
AUX CONDITION 
EXISTSAuxiliary and Alarm LED 
indicators and alarm and aux 
relays remain on because 
condition is still present
Latched Alarm 
(condition no longer 
exists)NoneNo message displayed, and 
Alarm LED indicators and the 
alarm relay turned off 
Latched Aux Relay 
(condition no longer 
exists)NoneNo message displayed, and 
appropriate Auxiliary LEDs 
and auxiliary relay(s) turned 
off 
Alarm and Latched Aux 
Relay (Aux condition no 
longer exists)NoneNo message displayed, and 
appropriate Auxiliary LEDs 
and auxiliary relay(s) turned 
off
Aux Relay and Latched 
Alarm (alarm condition 
no longer exists)NoneNo message displayed, and 
Alarm LEDs and alarm relay 
turned off Table 3–1: Reset Key Actions 
						

							3–6PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 3: OPERATION
FIGURE 3–3: Message Key Operation
3.3.7 Value Keys
Setpoint values are entered using the VA L U E keys. When a setpoint is displayed calling for 
a yes/no response, each time a 
VA L U E key is pressed, the “Yes” becomes a “No,” or the 
“No” becomes a “Yes.” Similarly, for multiple choice selections, each time a 
VA L U E key is 
pressed, the next choice is displayed. When numeric values are displayed, each time 
VALUE UP is pressed, the value increases by the step increment , up to the maximum. Hold 
the key down to rapidly change the value.
3.3.8 Data Entry Methods
•Keypad Entry: Press the MENU key once to display the f irst page of setpoints Press the 
MESSAGE RIGHT key to select successive setpoints pages. The page number and 
page title appear on the second line. All setpoint page headers are numbered with an 
‘S’ pref ix. Actual value page headers are numbered with an ‘A’ pref ix. 
The messages are organized into logical subgroups within each Setpoints and Actual 
Values page as shown below.
SETPOINTS[]
S1 PQMIISETUPDEFAULT MESSAGETIME
1.0MINUTES
DISPLAYFILTER
CONSTANT:4
PREFERENCES[]
SETPOINT ACCESS:
DISABLE
ENCRYPTEDSETPOINT
ACCESS CODE: 376
MESSAGE
MSGKEYOP.CDR
MENU
▲
▼MESSAGE
Moves
forward within
a subgroup Moves back
within a
subgroup
▲
MESSAGE
Moves forward to
the next menu level Moves back to the
previous menu levelMESSAGE
MESSAGE
MENU
MESSAGE
▲
▼MESSAGE
SETPOINT[]
ACCESS
MESSAGE
MESSAGE
▲
▼MESSAGE
COM1 RS485[]
SERIAL PORT
SETPOINTS[]
S2 SYSTEMSETUP
▲
▼MESSAGE
1.SETPOINTS[]
Press
[]formore 
2.ACTUAL VALUES
Press[]formore  
						

							CHAPTER 3: OPERATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL3–7
Press the MESSAGE keys when displaying a subgroup to access messages within that 
subgroup. Otherwise select the 
MESSAGE keys to display the next subgroup.
FIGURE 3–4: Message Hierarchy Example
•Computer Entry: When running the EnerVista PQMII Setup Software, setpoint values 
are accessed through the menu bar and displayed in a series of windows. See Chapter 
4: 
Software for further details.
•SCADA Entry: A SCADA system connected to the RS485 terminals can be custom 
programmed to make use of any of the communication commands for remote 
setpoint programming, monitoring, and control.
3.3.9 Setpoint Access Security
The PQMII incorporates software security to provide protection against unauthorized 
setpoint changes. A numeric access code must be entered to program new setpoints using 
the front panel keys. To enable the setpoint access security feature, the user must enter a 
value in the range of 1 to 999. The factory default access code is 1. If the switch option is 
installed in the PQMII, a hardware jumper access can be assigned to a switch input . 
Setpoint access can then only be enabled if the switch input is shorted and the correct 
software access code entered. Attempts to enter a new setpoint without the electrical 
connection across the setpoint access terminals or without the correct access code will 
result in an error message. When setpoint programming is via a computer, no setpoint 
access jumper is required. If a SCADA system is used for PQMII programming, it is up to the 
programmer to design in appropriate passcode security.
MAINMENU
MESSAGEPA GEHEADER
MESSAGESUBGROUPHEADER
MESSAGESUBGROUP MESSAGE
1. SETPOINTS
Press [ ] for moreSETPOINTS [ ]
S1PQMII SETUPPREFERENCES [ ]DISPLAY FILTER
CONSTANT: 
						

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CHAPTER 3: OPERATION
3.4 Default Messages
3.4.1 Description
Up to 10 default messages can be selected to display sequentially when the PQMII is left 
unattended. If no keys are pressed for the default message time in the 
S1 PQMII SETUP  
PREFERENCES  DEFAULT MESSAGE TIME
 setpoint , then the currently displayed message will 
automatically be overwritten by the f irst default message. After three seconds, the next 
default message in the sequence will display if more than one is selected. Alarm messages 
will override the default message display. Any setpoint or measured value can be selected 
as a default message.
Messages are displayed in the order they are selected.
3.4.2 Adding a Default Message
Use the MESSAGE keys to display any setpoint or actual value message to be added to the 
default message queue and follow the steps shown below. When selecting a setpoint 
message for display as a default , do not modify the value using the 
VA L U E keys or the 
PQMII will recognize the 
ENTER key as storing a setpoint instead of selecting a default 
message
If 10 default messages are already selected, the f irst message is erased and the new 
message is added to the end of the queue.
3.4.3 Deleting a Default Message
Use the MESSAGE keys to display the default message to be erased. If default messages 
are not known, wait until the PQMII starts to display them and then write them down. Use 
the 
MESSAGE keys to display the setpoint or actual value message to be deleted from the 
default message queue and follow the steps below.
THREEPHASE REAL
POWER = 1000 kWTO ADD THIS DEFAULT
MESSAGEPRESSENTERNEW DEFAULT
MESSAGE SELECTED
ACTUAL VALUE OR SETPOINT
TO BE STORED AS DEFAULT
MESSAGEDISPLAYED FOR 3 SECONDS
WHEN STORE KEY PRESSED
TWICEDISPLAYED FOR 3 SECONDS
WHEN STORE KEY PRESSED
ADEFMSG.CDR
ENTERENTERENTER 
						

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PQMII POWER QUALITY METER  – INSTRUCTION MANUAL3–9
3.4.4 Default Message Sequence
Each PQMII is pre-programmed with f ive default messages as shown below. Note, each 
time the factory setpoints are reloaded the user programmed default messages are 
overwritten with these messages.
The PQMII will scroll through the default messages in the sequence shown.
THREEPHASE REAL
POWER = 1000 kWTO DELETE THIS
MESSAGEPRESS ENTERDEFAULT MESSAGE
REMOVED
ACTUAL VALUE OR SETPOINT
TO BE REMOVED FROM THE
DEFAULT MESSAGE QUEUEDISPLAYED FOR 3 SECONDS
WHEN ENTER KEY AND RESET
KEY ARE PRESSED IN SEQUENCEDISPLAYED FOR 3 SECONDS
WHEN THE ENTER KEY IS
PRESSED
REDEFMSG.CDR
NOT A SELECTED
DEFAULT MESSAGE
DISPLAYED FOR 3 SECONDS WHEN
ENTER KEY AND RESET KEY ARE
PRESSED IN SEQUENCE VA LIDDEFAULT
MESSAGE
NOT A DEFAULT
MESSAGE
RESET
RESETENTERSTOREENTER
A= 100 B= 100
C= 100 AMPS
Van = 120      Vbn = 120
Vcn = 120      V
FREQUENCY = 60.00 Hz
TIME: 12:00:00am
DATE: JAN 01 1996
Phone: 905-294-6222
www.GEmultilin.com
Location: A1 METERING CURRENT 
Location: A1 METERINGVOLTAGE 
Location: A1 METERINGFREQUENCY 
Location: A2 STATUSCLOCK 
Location: A2  STATUSPROGRAMMABLEMESSAGE  
						

							3–10PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 3: OPERATION