Power Meter Bulletin No. 3020IM9503R6/98
Chapter 9—Onboard Alarming December 1998
66 1998 Square D All Rights Reserved
CHAPTER 9—ONBOARD ALARMING (PM-650 ONLY)
The power meter 650 has 30 alarm conditions available onboard, including
over/under conditions and unbalance conditions (See Alarm Conditions and
Alarm Codes in Appendix I for a complete list of alarm conditions.) The
power meter maintains a counter for each alarm to keep track of the total
number of occurrences.
These alarm conditions are tools that enable the power meter to execute tasks
automatically. Using POWERLOGIC application software, each alarm
condition can be assigned one or more of the following tasks:
• Force data log entries in the data log file
• Operate the KYZ relay output
SETPOINT-DRIVEN ALARMS
All of the alarm conditions require that you define the following setpoints:
• Pickup Setpoint
• Pickup Delay (in seconds)
• Dropout Setpoint
• Dropout Delay (in seconds)
For instructions on setting up alarm/relay functions from the power meter
display, see Setting Up Onboard Alarms on page 55.
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