Overview DC Asterion Series
3-38 M330460-01 Rev A
5. Program the Voltage to 10% of rated output by entering the in the “Setting”
section on the Dashboard Screen. This programs the Voltage above zero to
enable supplying output voltage while in the constant-current mode.
6. On the Dashboard screen, rotate the rotary knob to select the “Current” text
box in the “Setting” section. Press the rotary knob to highlight the current value.
Rotate the rotary knob clockwise and observe both the current display in the
“Measure” section on the Dashboard screen and output of the DC ammeter
begin to accelerate up. The output current should increase from 0 A to the
maximum rated current of the supply. The current display in the “Measure”
section on the Dashboard screen and DC ammeter readings should track
within the accuracies of the meter and the Dashboard.
7. Verify the front panel Constant Current Mode LED is on.
8. Program the Voltage and Current back to zero.
9. Turn the power supply off.
10. Allow 5 minutes for the output capacitors to discharge and disconnect the
ammeter or short from the output terminals.
11. If Constant-Current mode operation did not function as indicated above, verify
the setup and perform the check again. If the function continues to fail, contact
the factory for assistance.
3.2.3 Overvoltage Protection
The Overvoltage Protection (OVP) function allows the supply to shut down the output,
if it were to exceed a preset voltage. This may be used to protect sensitive circuits or
loads from damage caused by an excessive voltage on the output of the supply. The
Overvoltage Protection (OVP) could be programmed either through the front panel or
by the remote analog OVP programming input. To verify OVP operation, follow these
steps:
1. Make sure there is nothing connected across the output terminals.
2. Turn on the power supply.
3. If the Power ON Settings (PONS) had previously been configured to be OFF,
when the supply reaches the Dashboard Screen, enable the output by pressing
the “Output On/Off”.
4. Use the Output Program Screen to program the Voltage, Current and OVP.
5. Program the Current to 10% of rated output (program the current above zero
to enable supplying output current while in the constant-voltage mode).
6. The factory default setting is approximately 110% of the maximum rated output
of the supply. On the Output Program screen, rotate the rotary knob to set the
“OVP”. Press the rotary knob to highlight the OVP value. Rotate the rotary knob
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