Series 2268 850 Watt DC Power Supplies Reference Manual
Local Operation
2268S-901-01 Rev. A / January 2015
43
AUXILIARY AUTO START MODE
The Auxiliary Auto Start mode determines the state of the auxiliary output after a complete
power cycle (all front panel LEDS are not illuminated). With Auxiliary Auto Start mode
turned to On, the auxiliary output will be activated after the power supply is powered up
again.
To define the Auxiliary Auto Start mode:
1.
Press and hold the OUTPUT ENABLE Aux button for 1 second.
or
is displayed.
2.
To change to status to On or Off, press the OUTPUT ENABLE Aux button.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:AUXiliary:PowerON[:STATe]
CONSTANT POWER MODE
In
Constant Power Mode the power supply will continually adjust the current levels to
maintain a constant power set point. This mode is intended primarily for loads with response
time greater than approximately 100ms. In order to provide additional protection for the load,
voltage and current limits may be set while in the constant power mode. If the unit cannot
regulate to the Constant Power setting due to load conditions, it will regulate at either the
voltage or the current limit depending on the load demand.
Example, CP Mode:
Constant Power set 500W
Voltage limit 61V
Current limit 20A
To activate Constant Power mode and set the value:
1.
Turn the 9-position mode control to the FLD position or press the rotary
Adjust/Enter control if the 9-position mode control is already at the FLD position.
2.
Turn the rotary Adjust/Enter control until “CP” is displayed.
3.
Press the rotary Adjust/Enter control.
4.
Turn the Adjust/Enter control to the desired set point.
5.
Press the rotary Adjust/Enter control.
6.
Turn the Adjust/Enter control for fine adjustment.
7.
Press the rotary Adjust/Enter control to commit the Constant Power operation.
To disable Constant Power operation:
1.
Turn the 9-position mode control to the FLD position or press the rotary
Adjust/Enter control if the 9-position mode control is already at the FLD position.
2.
“FLD” is displayed on the output voltage display and the output current display
shows the Constant Power mode “CP”.
Содержание Keithley 2268 Series
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