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Operation
Front Panel Controls
50 Operating Manual for XPR Series Power Supply
Front Panel Controls
The power supply is shipped ready to operate in local mode using the front panel
knobs and function buttons.
This section describes the function buttons and control knobs that you use to operate
the power supply. (Additional details about the front panel keys, control knobs, and
display annunciators are provided in Section 1, “About The XPR Power Supply”.)
The next section provides details about configuring and operating the power supply.
Function
Buttons
Four function buttons are located on the front panel. Each is described below. For the
purposes of simple front panel control, you should understand the function of the
LCL/RMT, OUT ON/OFF, SET POINT, and OVP buttons.
1. SET POINT VOLTAGE: Lets you pre-set a setpoint before the output is
enabled. To pre-set a voltage setpoint, press SET POINT, use the Voltage knob
to set a value (Local Mode). The value must be between 0 V and 103% of the
units rated voltage. (See page 49.)
This output can be changed while the output is OFF.
2. SET POINT CURRENT: Lets you pre-set a setpoint before enabling it. To
pre-set a current setpoint, press SET POINT, use the Current knob to set a value
(Local Mode). The value must be between 0 A and 103% of the units rated
current. (See page 49.)
This output can be changed while the output is OFF.
3. OUT ON/OFF: This is a latch ON/OFF button that enables (OUT position) and
disables (ON position) the power supply output. Normally, you should leave the
power supply in its Output Off state when no load is attached or there is no need
for DC output. (See “Controlling Output ON/OFF via Front Panel” on page 53.)
When the ON annunciator is illuminated, the output is enabled. When the OFF
annunciator is illuminated, the output is disabled.
4. LCL/RMT: This button lets you toggle between local and remote control. If the
RMT annunciator is illuminated, both voltage and current output can only be
controlled via a remote voltage source or resistive programming.
5. OVP: Lets you pre-set an OVP setpoint before output is enabled. To pre-set
Over Voltage Protection setpoint limit, press OVP button and turn the front panel
screw until the desired OVP limit is achieved.