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2 - 6
2.2.1
Local operation
Using the front panel keys, you can program an output channel voltage or current.
On the front panel display you can read back the actual voltage and current of the
selected output channel. Operating information about the instrument and the
selected output channel, as well as output-specific error messages, are shown on
the display in the following ways (see the following figure):
•
text
•
annunciators, pointing at abbreviations on the front panel right below the
display.
PM28xx programmable power supply xxV/yyA/zzW
text annunciators text
keypad
You can use the keypad as follows to control your power supply:
•
control interface and general functions via a menu
•
switch between the operate and standby mode
•
set the supply to local control (if not remotely locked)
•
reset the power supply, i.e., return to the 'power on' state
•
store/recall/step voltage and current settings (1 to 999) in the instrument's
battery backed-up memory (recall memory)
You can use the keypad as follows to control one of the output channels:
•
select an output channel (only for multiple output models)
•
enable or disable an output channel (only for multiple output models)
•
unmask, delay, or display the setting of bits in the fault register
•
reset the overvoltage and overcurrent protection
You can use the keypad as follows to perform an output channel setting:
•
set or change the output voltage or current
•
set the overvoltage trip level
•
enable or disable the overcurrent protection
LCD display
abbreviations
• • •
keypad
keypad
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