ITech IT8800 Series - 3.11 OPP test function

Function and Features
Copyright © ITECH Electronic Co., Ltd. 34
8:OCP Voltage=0.000V Set OCP value
9:Max Trip Current=0.000A Set over-
current range
(maximum value)
10:Min Trip Current=0.000A Set over-
current range
(minimum value)
Save OCP File=1 (1-5) Save OCP test documents
Operating steps:
1. Press [Trig] key to start OCP test. If within range, PASS the test and the
board will display as follows:
9.9973V 0.0005A
0.01W 5.100A PASS STOP
If not, there is FAULT and the board will display as follows:
9.9973V 0.0005A
0.01W 5.100A FAULT STOP
2. End test. The User should return back to setting screen for resetting.
NOTE
If the set OCP voltage value is higher than the power voltage value, the OCP will fail to
operate and the board will display as follows:
3.11 OPP test function
The IT8800 series electronic load is provided with overpower protection test
function (OPP). Under OPP test mode, when input voltage reached Von value,
delay for a while for the electronic load to latch. Ascend value by step value at
regular interval. At the same time, check the load input voltage and judge
whether it is higher than standard voltage value. If higher, it indicates that OPP
does not occur. Repeat power stepping operation till the load operates to the
cutoff power; if lower, it indicates that OPP does occur. Check whether the
existing power value is within target scope again. If yes, PASS the test.
Press [Shift] + [CW] (OPP) keys to enter OPP test function setting screen.
OPP
TEST
Run
OPP TEST
Operate OPP test documents
Recall
OPP TEST
Recall OPP File=1 Recall OPP test documents (1-5)
Edit OPP TEST
9.9990V 0.0009A
0.01W 0.100A FAULT STOP