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4 - Turn-On Checkout
Procedure
6.
Press Enter Number,
8, Enter
7.
Press Shift, OV,
Enter Number,
<22>, Enter
8.
Press Shift, Prot Clear
9.
Press Output on/off
10.
Connect a jumper wire
across the + and - output
terminals.
11.
Press Output on/off.
12.
Press Current,
Enter Number,
<3>, Enter.
13.
Press Shift, OCP
14.
Press Shift, OCP
15.
Press Shift, Prot Clear
16.
Turn the unit off and
remove the shorting wire
from the output terminals.
30
Display
Explanation
VOLT:PROT 8
Programs the OVP to 8 volts, which is less than the
previously set output voltage.
0.449V
0.145A
Because the OVP voltage entered was less than the
output voltage, the OVP circuit tripped. The output
dropped to zero, CV turned off, and Prot turned on.
VOLT:PROT <22>
Programs the OVP to a value greater than the output
voltage setting of the unit. This prevents the OV circuit
from tripping again when the protection condition is
cleared.
<15.003>V
Clears the protection condition, thus restoring the
0.0034A
output of the unit. Prot turns off and CV turns on.
Turn the output off.
Shorts the output of the unit.
0.0005V
The CC annunciator is on, indicating that the unit is in
<0.3071>A
constant current mode. The unit is sourcing output
current at 10% of the maximum rating (the default
output current limit setting).
0.0452V
Programs the output current to 3 amperes.
<2.998>A
0.0005V 0.0003A
You enabled the overcurrent protection circuit. The
circuit then tripped because the unit was operating in
constant current mode. The CC annunciator turns off
and the OCP and Prot annunciators come on.
0.0005V 0.0003A
You have disabled the overcurrent protection circuit.
The OCP annunciator turns off.
0.0452V
Restores the output. The Prot annunciator turns off. CC
<2.998>A
is on.
The next time the unit turns on it will be restored to the
*RST or factory default state.
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