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52 Local Operation
Table 4-1. Controls and Indicators (continued)
Item Description
7 FUNCTION Keys
(continued)
- Displays the selected channel’s active mode: CC (MODE CURR), CR (MODE RES),
or CV (MODE VOLT). The active mode can be changed using the CURR, RES, or VOLT key
followed by the Enter key.
- Displays the selected channel’s main current setting (e.g. CURR 3.275). This setting
can be changed using the ENTRY keys. The CURR key also selects the CC mode (MODE
CURR) in conjunction with the MODE and Enter keys.
- Displays the selected channel’s resistance setting. (e.g. RES 1000). This setting can be
changed using the ENTRY keys. The RES key also selects the CR mode (MODE RES) in
conjunction with the MODE and Enter keys.
- Displays the selected channel’s voltage setting (e.g. VOLT 5.567). This setting can be
changed using the ENTRY keys. The VOLT key also selects the CV mode (MODE VOLT) in
conjunction with the MODE and Enter keys.
8 ENTRY Keys
to and Set the channel number and the value of the specified function (e.g. CURR
2.525, RES 1000, VOLT 7.000, etc.).
(backspace) - Erases the previous keystroke in order to make corrections before entering a
new setting.
- Enters the parameters (value, mode, channel) on the display for the specified function
(or selects the mode of operation), and returns the front panel to the metering mode.
and - These keys simulate front panel control knobs. They can be used to
change the main level or the transient level of the function shown on the display. The new values
are entered automatically (Enter key is not used) and they take effect as soon as they are
displayed. You can also use these keys to change the actual input level when the display is
monitoring the input voltage/current or the computed power. Note that these keys have no effect
on range, slew, frequency, etc.
Local Control Overview
In order to use the front panel keys to control the Multiple Electronic Load, local control must be in effect. Local control is
in effect immediately after power is applied. With local control in effect (Rmt annunciator off), the SYSTEM, CHAN,
FUNCTION, and ENTRY keys can be used to program the Multiple Electronic Load. The power-on "wake-up" settings for
all of the Multiple Electronic Load’s functions can be the factory default values or other user selected values as described
later in this chapter.
In the remote state (front panel Rmt annunciator on), the front panel keys will have no effect; only the GPIB controller can
program the Multiple Electronic Load. The front panel display will show the input voltage and current readings for the last
channel selected locally or channel 1 (default) while the remote state is in effect.
You can return the Multiple Electronic Load to local control from remote control by pressing the Local key, provided that
the local lockout command has not been received from the GPIB controller.