HP 654 A Series Operating Manual page 47

Table 5-1. Front Panel Controls and Indicators
Control or
Indicator
Function or Indication
1 Display
VOLTS
AMPS
cv
cc
Unr
Dis
OCP
Prot
Err
Cal
Shift
Rmt
Addr
SRQ
Shows present output voltage of the power supply.
Shows present output current of the power supply.
Status Annunciators
The power supply is in constant-voltage mode.
The power supply is in constant-current mode.
The power supply output is unregulated (output is neither CV or CC).
The power supply output is disabled.
The overcurrent protection function is enabled
A protection circuit has caused the power supply to shut down. (Press (Protect) to determine the
reason.)
(Not used^)
The power supply is in calibration mode.
The shift key ( Shift 1 has been Dressed.
(Not used')
(Not used')
(Not used')
^ These annunciators function only with the corresponding models of HP-IB System family of power supplies.
2 Output Rotary Controls
Voltage
Current
Rotate clockwise to increase output voltage or program setting. Provides the same function as the
1 TVoltage 1 and | (Voltage 1 kevs.
Rotate clockwise to increase output current or program setting. Provides the same function as the
( TCurrent | and | j Current) keys.
3 SYSTEM Keys
1 Local)
i Address)
( Error |
(Recall 1
(Save 1
LD
_
(Not used')
(Not used')
(Not used')
Press to restore a previously saved power supply state. Use ENTRY keys through (T) to specify
which location to recall. (Select by pressing {Shift iRecaUl) Use the ENTRY kevs to soecifv the
location where you want to store the state. You may me locations 0 to 4.
Note: Location 0 xnay contain the power supply tum-on state. See "Tum-On Operation" in this
chapter.
Use to save the power supply's present state to nonvolatile memory. (Select bv pressing
1 Shift I Recall).) Use the ENTRY kevs to specify the location where vou want to store the state.
You may use locations 0 to 4.
This unlabled blue key is the Shift key. Press to access the shifted (alternate) key functions.
'These keys function only with the corresponding models of HP-IB System family of power supplies. Pressing them
causes 10 HP-IB to be displayed.
4 FUNCTION Keys
(Output On/Offl
f Voltage 1
1 Current 1
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 (Voltage
I.
vou mav use the ENTRY kevs
to change the value.
Press to display the output current setting. After pressing (Current 1, vou mav use the ENTRY
keys to change the value.
5-2 Front Panel Operation
Introduction