3
1 15V/7A range selection key Selects the 15V/7A range and allows the full rated output
to 15V/7A.
2 30V/4A range selection key Selects the 30V/4A range and allows the full rated output
to 30V/4A.
3 Overvoltage protection key Enables or disables the overvoltage protection function,
sets trip voltage level, and clears the overvoltage condition.
4 Overcurrent protection key Enables or disables the overcurrent protection function,
sets trip current level, and clears the overcurrent condition.
5 Display limit key Shows voltage and current limit values on the display and allows
knob adjustment for setting limit values.
6 Recall operating state key Recalls a previously stored operating state from location
‘‘1’’, ‘‘2’’, or ‘‘3’’.
7 Store operat ing state / Lo cal key1 Stores an operating state in location ‘‘1’’, ‘‘2’’, or
‘‘3’’ / or returns the power supply to local mode from remote interface mode.
8 Error / Calibrate key2 Displays error codes generated during operation, self-test and
calibration / or enables calibration mode (the power supply must be unsecured before
performing calibration). See Service Guide for more details on calibration.
9 I/O Configuration / Secure key3 Configures the power supply for remote interfaces
/ or secure or unsecure the power supply for calibration. See Service Guide for more
details on how to secure or unsecure the power supply.
10 Output On/Off key Enables or disables the power supply output. This key toggles
between on and off.
11 Control knob Increases or decreases the value of the blinking digit by turning
clockwise or counter clockwise.
12 Resolution selection key s Move the blinking digit to the right or left.
13 Voltage/current adjust selection key Selects the knob control function for voltage
or current adjustment.
1The key can be used as the ‘‘Local’’ key when the power supply is in the remote
interface mode.
2You can enable the ‘‘calibration mo de’’ by holding down this ke y when you turn on
the power supply.
3You can use it as the ‘‘Secure’’ or ‘‘Unsecure’’ key when the power supply is in the
calibration mode.