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Front Panel Operation
55
Table 5-1. Front Panel Controls and Indicators (continued)
Control or
Indicator
Function or Indication
4 Function Keys
Press to enable or disable the power supply output. This key toggles between the two states. The
disabled state programs the output to very low voltage and current settings.
Press to display the output voltage setting. After pressing
, you may use the ENTRY keys
to change the value.
Press to display the output current setting. After pressing
, you may use the ENTRY keys
to change the value.
When the
Prot
annunciator comes on, press
to see which protection circuit caused the
power supply to shut down. Response can be
OC
(overcurrent),
OT
(overtemperature), or
OV
overvoltage). If no protection circuit has tripped, the display will show dashes (-- -- -- --)
Press this key to reset the protection circuit. If the condition that caused the circuit to trip has been
removed, the
Prot
annunciator will go off.
Press to enable or disable the power supply OCP trip circuit. This key toggles between the to states .
Press to display the OV trip voltage setting. After pressing
, you may use the ENTRY keys to
change the value.
5 ENTRY Keys
Press to increment the output voltage in the CV mode, or the voltage setting after you have pressed the
key.
3
Press to decrement the output voltage in the CV mode, or the voltage setting after you have pressed the
key.
3
Press to increment the output current in the CC mode, or the current setting after you have pressed the
key.
3
Press to decrement the output current in the CC mode, or the current setting after you have pressed the
key.
3
3
The four incremental keys operate in two modes. Press and release for a single output change determined by the control
resolution (see ‘Supplemental Characteristics” in Chapter l). Press and hold for an increasingly rapid output change.
thru
Press to select numerical values.
Press to enter a minus sign.
Press to delete the last keypad entry. Use this key to correct one or more incorrect digits before they are
entered.
Press to delete an entire keypad entry and return to the meter mode. Use this key to exit from a value
before it is entered.
Press to enter a value or to accept an existing value and return the display to the meter mode.
The remaining shifted keys are for calibration (see Appendix A).