Normal Operation; Turn-On Operation - HP 654 A Series Operating Manual

Normal Operation
You can save programming time by storing up to 5 power supply operating states in
nonvolatile memory. The programming parameters that are saved are:
■ Output voltage
Output current *OVP voltage
■ OOP state (on or off)
Output state (enabled or disabled)
As an example, set up the following state:
n
Voltage
=
4 V Current
=
1 A OVP voltage = 5.5 V
m
OCP = on (OCP annunciator on) Output = Off (Dis annunciator on)
Save the above state to location 1 by pressing
Now set up the following state:
■ Voltage = 8 V
Current = 1.5 A OVP voltage =: 8.5 V
■ OCP = off
(OCP
annunciator off) Output = On
(Dis
annunciator off)
Save the above state to location 2 by pressing
(Save
IfDf
Enter
).
Now restore the first state by pressing and verify the paramters. Restore
the second state by pressing
(Recall
ITK
Enter
].
Note how the power supply is automatically
programmed each time.
Turn-On Operation
Whenever you apply power to a new power supply it automatically turns on in a safe reset
state with the following parameters:
■ (Output] off
(Voltage]
minimum
(current
1
near zero
■
maximum (ocp) off
It is recommended that you leave the turn-on conditions
as
programmed. However, you may
change them if you wish. To do this, proceed as follows:
1. Set up the power supply to the state you want when it is turned on.
2. Store that state to location 0.
3. Turn off the power supply.
4. Hold in the (s) key and turn the power supply back on. The display indicates RCL 0 PWR-ON
to verify that the power supply has configured its turn-on state to that stored in location 0.
5. From now on the supply will always turn on to the state defined in location 0.
Whenever you wish, you can return the power supply to the original factory reset state. To
do this, simply hold down the 0 key when you turn on the supply. The display indicates RST
PWR-ON to verify that the power supply has configured its turn-on state to the original reset
state. From now on it will continue to turn on in that state.