Schneider Electric PM870, PM820, PM810, PM850 Setting Up PQ Advanced Evaluation from the Display

PowerLogicTM Series 800 Power Meter	63230-500-225A2
Appendix D—Advanced Power Quality Evaluations	3/2011

Alarms Allocated for PQ Advanced Evaluations

To accomplish some of the evaluations required and to provide a record of events in the on-board alarm log, the PM850 uses standard alarms, and the PM870 uses disturbance alarms. When the evaluation is enabled, certain alarm positions will be claimed and automatically configured for use in the evaluation. You cannot use these alarms for other purposes while the evaluation is enabled. These alarms include:

•Over Voltage (PM850): Standard speed alarm positions 35-37

•Under Voltage (PM850): Standard speed alarm positions 38-40

•Disturbance for Voltage Swells and Sags (PM870): Disturbance alarm positions 1-3 and 7-9

NOTE: The position depends on the system type (register 3902).

“PQ Advanced” is included in the alarm label for alarms being used by this evaluation.

Setting Up PQ Advanced Evaluation from the Display

To set up the PQ Advanced evaluation in the power meter, you need to perform these steps using the meter set-up procedure:

1.Enable the PQ Advanced evaluation.

By default, the PQ Advanced evaluation is disabled. To enable the evaluation, use the display (see “PQ Advanced Evaluation Setup” on page 22).

2.Select the nominal voltage of your system.

NOTE: The EN50160 standard defines nominal voltage for low-voltage systems to be 230V line-to-line for 3-wire systems or 230V line-to-neutral for 4-wire systems. Therefore, the default value for Nominal Voltage is 230.

If the application is a medium-voltage system, or if you want the evaluations to be based on some other nominal voltage, you can configure this value using the display only. PowerLogic software does not allow configuration of nominal voltage

3.Select the nominal frequency of your system.

NOTE: The EN50160 standard defines nominal frequency as 50 Hz, but the PM850 and the PM870 can also evaluate 60 Hz systems. They cannot evaluate nominal frequency for 400 Hz systems.

The default nominal frequency in the PM850 and the PM870 is 60 Hz. To change the default, from the display Main Menu, select Setup > Meter > Frequency. From PowerLogic software, see the online help file.

4.Reset the PQ Advanced Statistics.

a.Write 9999 in register 8001.

b.Write 11100 in register 8000.

Refer to “Resetting Statistics” on page 99.

5.Reset the ITI (CBEMA) and SEMI F-47 Statistics.

a.Write 9999 in register 8001.

b.Write 11200 in register 8000.

Refer to “Resetting Statistics” on page 99.

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