Current Output Checkout - ITech IT6821 User Manual

1.2.2 Current Output Checkout

The following steps check basic current functions with a short across the power supply's
output.
1. Turn on the power supply.
2. Disable the output
Press
Out On/Off
turned on.
3. Connect a short across (+) and (-) output terminals with an insulated test lead.
Use a wire size sufficient to handle the maximum current.
Warning:
enough not to overheat when carrying the maximum short-circuit output
current of the power supply. If there is more than one load, then any pair
of load wires must be capable of safety carrying the full-rated current of
the power supply.
4. Enable the output.
Press
Out On/Off
turned off.
5. Adjust the voltage value to 1.0 volt.
Adjust the voltage to 1.0 volt to ensure the power supply is in CC operation mode.
The CC annunciator will turn on.
6. Adjust the current value.
Set some different voltage values, then wait till the Meter mode to check if the VFD
displayed current value is the same as the set voltage value, and to check if the
VFD displayed voltage value is nearly zero.
7. Ensure that the current can be adjusted from zero to the full rated value.
8. Turn off the power supply and remove the short wire from the output terminals.
key to ensure that the output is disabled. The OFF annunciator is
To satisfy safety requirements, load wires must be heavy
key to ensure that the output is enabled. The OFF annunciator is
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USER'S GUIDE 11