Asterion DC Multioutput ASA Series Operational Manual
M330516-01
3-94
7. Verify the Constant Current Mode (CC) appears on the Dashboard screen.
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.
3.5.3
Overvoltage Protection
The Overvoltage Protection (OVP) function is individual for each channel and allows
the supply to shut down the output respected channel 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 through the front panel individually for each channel. 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
anti-clockwise until the OVP is programmed to about 80-90% of the maximum
rated output voltage.
7.
On the Dashboard screen, rotate the rotary knob to select the “Voltage” text
box in the “Setting” section. Press the rotary knob to highlight the voltage value.
Rotate the rotary knob clockwise and observe the voltage display in the
“Measure” section on the Dashboard screen begin to accelerate up. When the
output voltage exceeds the OVP trip point, the OVP warning screen will be
displayed saying that the output tripped due to an OVP fault.
8. The Output State will be programmed to
OFF
, and the Voltage, Current, and
OVP settings will retain their previous settings.