S1 Pqm Setup; Description; Preferences - GE Power Quality Meter Series Instruction Manual

4 PROGRAMMING

4.2 S1 PQM SETUP

Settings to configure the PQM itself are entered on this page. This includes user preferences, the RS485 and
RS232 communication ports, loading of factory defaults, and user programmable messages.
]] SETPOINTS
]] S1 PQM SETUP
MESSAGE
MESSAGE

] PREFERENCES

]
MESSAGE
MESSAGE
Figure 4–2: SETPOINTS PAGE 1 – PQM SETUP \ PREFERENCES
• DEFAULT MESSAGE TIME: Up to 10 default messages can be selected to automatically scan sequen-
tially when the PQM is left unattended. If no keys are pressed for the default message time set with this
setpoint, then the currently displayed message is automatically overwritten by the first default message.
After 3 seconds, the next default message in the sequence displays if more than one is selected. Alarm
messages always override the default message display. Note that any setpoint or measured value can be
selected as a default message.
• DEFAULT MESSAGE BRIGHTNESS: The brightness of the displayed messages can be varied with this
setpoint. This brightness will be used when the default messages are being displayed. The brightness
defaults back to 100% when:
• an alarm is present
• any one of the keys on the PQM keypad is pressed
• the PQM is turned off and on
• a text display message is sent through the serial port.
When DEFAULT MESSAGE TIME is set to OFF, the brightness adjusts to the programmed level after 5 minutes
have elapsed, since the PQM keys were last pressed assuming no alarm is present. If no default mes-
sages are programmed, the currently message remains displayed and the display brightness adjusts to the
programmed level after the programmed time in the DEFAULT MESSAGE TIME setpoint has elapsed.
• DISPLAY FILTER CONSTANT: Display filtering may be required in applications where large fluctuations in
currents and/or voltages are normally present. This setpoint allows the user to enter the PQM filter con-
stant to average all metered values. If the DISPLAY FILTER CONSTANT setpoint is set to 1, the PQM updates
the displayed metered values approximately every 400 ms. Therefore, the display updating equals DISPLAY
FILTER CONSTANT × 400 ms.
GE Power Management
SETPOINT
]] SETPOINTS
]] S2 SYSTEM SETUP
MESSAGE
DEFAULT MESSAGE TIME
1.0 MINUTES
DEFAULT MESSAGE
MESSAGE
BRIGHTNESS: 60%
DISPLAY FILTER
CONSTANT: 4
PQM Power Quality Meter
4.2 S1 PQM SETUP

4.2.1 DESCRIPTION

4.2.2 PREFERENCES
Range: 0.1 to 120.0, OFF
Step: 0.1 min.
Range: 0 to 100%
Step: 20%
Range: 1 to 10
Step: 1
4-3
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