10.6Power History

The power history is only available when the inverter is blocked; it provides a visual display of the status of the alarms and measurements over a period of 10 seconds before and 1 second after the inverter stops in steps of 0.1 s. The power history is lost when the inverter is restarted.

Figure 20 provides a graphic representation of how to access the Power History.

Fig.20: Power History Structure

LOAD

ALARMS

POWER HISTORY

BATTERY TEST

SELECT

DOWN TO ACCESS

POWER HISTORY MATRIX

Time

 

 

(seconds)

Measurements

Alarms

-10

 

 

 

 

 

 

 

POWER HISTORY

 

UP TO EXIT

 

Initial

 

position

Inverter

0

Shutdown

 

 

+1

Typical Power History Display

Measurement

RECTIFIER

+0.3 SEC

VDC = 327V

IB = 5A

 

 

Alarm

-5.3 SEC ON

OVER TEMPERATURE

MI00/10056 rev.1--05/2001-- page 57

Page 57
Image 57
Energy Tech Laboratories EDP70 manual Power History Matrix