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output frequency as it is controlled by the –LKM master unit. The frequency setting provides the
auxiliary controller with the required information to accurately measure the frequency.
3.11 Remote Control Interfaces
Setup and connection information on setting up remote control using either GPIB, USB or LAN
interfaces is provided in the iX Series Programming Manual P/N 6005-961. This manual is distributed
on the same CD ROM (P/N CIC496) as this user manual. It can also be downloaded from the
California Instruments website (www.calinst.com).
Connector pin out information is provided in sections 3.7.6, 3.7.7 and 3.7.8 of this manual.
Note: Use of the USB port to control more than one power source from a single PC is not
recommended, as communication may not be reliable. Use GPIB interface for multiple
power source control.
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User Manual Compact i/iX Series
4. Front Panel Operation
4.1 Tour of the Front Panel
Before operating the AC source using the front panel, it helps to understand the operation of the front
panel controls. Specifically, the operation of the rotating shuttle knob, keyboard and the menu layout
are covered in the next few paragraphs.
4.1.1 Front Panel Controls and Indicators
Figure 4-1: Front Panel controls and indicators.
The front panel can be divided in a small number of functional areas:
• AC Input power on/off switch
• Keyboard/ Display:
• Status Indicator lights
• Dual line LCD display (2 x 16 characters)
• Output On/Off key
• Menu Keys
• Data Entry Keypad
• Shuttle Knob
4.1.2 Input Power On/Off switch
The power on/off switch is located on the left side of the front panel of the unit and disconnects the AC
Line input.
California Instruments 48
User Manual Compact i/iX Series
4.1.3 Status Indicator Lights
Five yellow LED status indicators are located on the left hand side of the keyboard/display panel.
These LED’s correspond to the following conditions:
Hi Range The Hi Range LED is on when the high voltage output range has
been selected.
Overtemp The Overtemp LED indicates an overheating problem inside the unit.
This is an abnormal condition, which will cause the unit to shut off.
Check the air openings to make sure they are not blocked.
Overcurrent The Overcurrent LED indicates an output current that exceeds the
programmed setting. This condition can be controlled by setting the
current limit value in the PROGRAM menu. Removing the load using
the OUTPUT ON/OFF button will recover from an overload condition
when in CV mode.
Remote The Remote LED indicates that the unit is in remote control mode. If
the IEEE-488 interface is used, this indicator will be lit whenever the
ATN line (Attention) line for the GPIB address set is asserted by the
IEEE controller. If the USB or LAN interface is used, the REMOTE
state can be enabled by the controller using the SYST:REM
command. Any time the Remote LED is lit, the front panel of the
power source is disabled. Note: The BACK button doubles as a
GOTO LOCAL button (LOCAL) while the unit is in remote state. This
allows the user to regain control of the front panel. The LOCAL button
can be disabled by sending a Local Lockout bus command. This
prevents unauthorized changes of settings in ATE applications.
Output The Output LED indicates the output relay status. If the LED is off,
the output relay is open. If the LED is on, the output relay is closed.
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User Manual Compact i/iX Series
4.1.4 The Shuttle Knob
Counter
Clock
wise
Clock
wise
DECR INCR
Figure 4-2: Shuttle Knob
The i/iX Series has a single rotating knob (“shuttle”). This shuttle knob is located to the right of the
numeric keypad. This knob may be used to continuously vary parameter values or select from multiple
settings in a given menu field. The parameter or field affected by turning the shuttle knob is indicated
by a left pointing arrow (cursor) on the LCD display. Note that it is not possible to move this cursor
position between menu fields using the knob. Use the UP and DOWN arrow (cursor) keys for this
instead. Data and parameter entry can also be done through the numeric keypad.
The shuttle knob can operate in one of two distinct modes of operation:
MODE DESCRIPTION
IMMEDIATE mode Any time the ENTER key is pressed, the power source returns to its
normal mode of operation. In this mode, changes made with the
shuttle knob will take immediate effect. The IMMEDIATE mode is
useful for continuously varying output values such as voltage and
frequency and observing the effect on the load.
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