Setting Timing Mode Values For Transfer Time - Chroma 63800 Series Operation & Programming Manual

Programmable AC/DC Electronic Load 63800 Series Operation & Programming Manual
6. Press 3 , 5 then press ENTER to change the value to "35.0".
P s e t = 3 5 0 . 0 0
T I M E O U T = 0 0 : 0 0 : 0 0
7. Move the cursor by pressing ( ◄, ► ) to the command line of "TIMEOUT =".
P s e t = 3 5 0 . 0 0
T I M E O U T = 0 0 : 0 0 : 0 0
8. Press 2 , 0 then press ENTER to change the value to "00:00:20".
P s e t = 3 5 0 . 0 0
T I M E O U T = 0 0 : 0 0 : 2 0
9. Move the cursor by pressing ( ◄, ► ) to the command line of "CUT OFF V=".
P s e t = 3 5 0 . 0 0
T I M E O U T = 0 0 : 0 0 : 2 0
10. Press 2 , 1 then press ENTER to change the value to "21.000".
P s e t = 3 5 0 . 0 0
T I M E O U T = 0 0 : 0 0 : 2 0
11. After setting the parameter of the load, the LOAD ON/OFF key should be pressed to turn
on the load, so that the load can sink the current. (The detailed information please refer
section 3.4.5.)
If there is error during the procedures of inputting value, press CLEAR to
clear the value at any time and then input again.

3.10.5 Setting Timing Mode Values for Transfer Time

For UPS, 63800 series provides a measurement function for the transfer time. The 63800
Electronic Load calculates the transfer time by calculating the time power is disconnected and
reconnected. A voltage is below 7.5V is considered as power disconnection and above 7.5V
as power reconnection. The below figure is the measurement waveform of off-line UPS
transfer time.
3-48
P F = 0 . 8 0 0
C U T O F F
P F = 0 . 8 0 0
C U T O F F
P F = 0 . 8 0 0
C U T O F F
P F = 0 . 8 0 0
C U T O F F
P F = 0 . 8 0 0
C U T O F F
I p ( m a x ) = 3 5 . 0
V = 5 0 . 0 0 0
I p ( m a x ) = 3 5 . 0
V = 5 0 . 0 0 0
I p ( m a x ) = 3 5 . 0
V = 5 0 . 0 0 0
I p ( m a x ) = 3 5 . 0
V = 5 0 . 0 0 0
I p ( m a x ) = 3 5 . 0
V = 2 1 . 0 0 0