Instruction manual

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3.6.6. OUTPUT POWER FACTOR (PWF=24)
This screen displays the power factor from 0 to 1.000 with 0.001 resolution. The PWF screen
will read unity for loads less than 10 digits of apparent power on the Apparent Power (APW)
screen. When this screen is displayed after another screen, it takes approximately two seconds
to update the screen.
3.6.7. OUTPUT APPARENT POWER (APW=25)
This screen is accessed by its screen number, 25. It displays KVA.
3.6.8. ELAPSED TIME (ELT =11)
This screen displays the total run time accumulated on the AC Power System up to 99,999
hours.
H = Hours M = Minutes S = Seconds
3.7. COMPUTER BUS OPERATION
Remote programming through the IEEE-488 Interface (GPIB) consists of sending the unit
address and the proper ASCII alphanumeric characters to identify the parameter and the
numerical value or other argument. The description of the abbreviations for GPIB messages
used in this section are listed in Table 3-10. These abbreviations must not be confused with
the device dependent abbreviations used to describe the AC Power System operating
parameters (ex. FRQ=Frequency, etc.).
3.7.1. UNIT ADDRESS
This is the A value (LSN) set in the CFG screen. The Unit Address 0 through 30
corresponds to the HEX value 20 through 3E. Refer to Table 3-11 for the equivalent HEX,
Binary, ASCII and Decimal equivalents. The Unit Address is set at the factory to 1 but may
be changed by selecting the CFG Configuration screen and setting a new value.
To select the CFG screen repeatedly depress the MNU key until menu screen #1 is displayed as
illustrated below:
SNC = 01 RNG = 04
Enter the key sequence: 959 ENT