Schneider Electric PM850 Marine Instruments User Manual


 
© 2011 Schneider Electric. All Rights Reserved.
63230-500-225A2 PowerLogic
TM
Series 800 Power Meter
3/2011 Chapter 6—Alarms
55
Alarm Conditions and Alarm Numbers
This section lists the power meter’s predefined alarm conditions. For each alarm condition,
the following information is provided.
Alarm No.—a position number indicating where an alarm falls in the list.
Alarm Description—a brief description of the alarm condition
Abbreviated Display Name—an abbreviated name that describes the alarm condition,
but is limited to 15 characters that fit in the window of the power meter’s display.
Test Register—the register number that contains the value (where applicable) that is
used as the basis for a comparison to alarm pickup and dropout settings.
Units—the unit that applies to the pickup and dropout settings.
Scale Group—the scale group that applies to the test register’s metering value (A–F).
For a description of scale groups, see “Scale Factors” on page 49.
Alarm Type—a reference to a definition that provides details on the operation and
configuration of the alarm. For a description of advanced alarm types, refer to
Table 6–9.
Table 6–8 lists the preconfigured alarms by alarm number.
NOTE: Current sag and swell alarms are enabled using PowerLogic software or by setting
up custom alarms. To do this, delete any of the above default disturbance alarms, and then
create a new current sag or swell alarm (see the example under the “Advanced Alarm
Groups” on page 53.). Sag and swell alarms are available for all channels.
Table 6–8: List of Default Disturbance Alarms by Alarm Number
Alarm
Number
Alarm Description
Abbreviated
Display Name
Test
Register
Units
Scale
Group
Alarm
Type
Disturbance Monitoring (1/2 Cycle) (PM870)
41 Voltage Swell A Swell Van Volts D 080
42 Voltage Swell B Swell Vbn Volts D 080
43 Voltage Swell C Swell Vcn Volts D 080
44 Voltage Swell A–B Swell Vab Volts D 080
45 Voltage Swell B–C Swell Vbc Volts D 080
46 Voltage Swell C–A Swell Vca Volts D 080
47 Voltage Sag A–N Sag Van Volts D 080
48 Voltage Sag B–N Sag Vbn Volts D 080
49 Voltage Sag C–N Sag Vcn Volts D 080
50 Voltage Sag A–B Sag Vab Volts D 080
51 Voltage Sag B–C Sag Vbc Volts D 080
52 Voltage Sag C–A Sag Vca Volts D 080
Scale groups are described in Table 6–2 on page 49.
Advanced Alarm types are described in Table 6–9 on page 56.