User Manual – Rev BE AMETEK Programmable Power
MX Series 99
4.1.3 Status Indicator Lights
Four LED status indicators are located to the left of the display, and correspond
to the following conditions:
REMOTE\LAN The REMOTE\LAN LED indicates that the unit is in
remote-control mode. If the IEEE-488 interface is used,
this indicator will be lit whenever the REM (REMOTE
ENABLE) line is asserted by the IEEE controller. If the
RS232, USB or LAN interface is used, the REMOTE state
can be enabled by the controller using the SYST:REM
command. Any time the REMOTE\LAN LED is lit, the
front panel of the MX Series unit is disabled. There is no
LOCAL button that allows the user to regain control of
the front panel. This prevents accidental change of
settings in ATE applications.
OVERLOAD The OVERLOAD LED indicates an output overload
condition. 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.
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.
HI RANGE The HI RANGE LED is on when the high voltage output
range has been selected.
To the left of these LEDs is a row of three Amplifier Fault LEDs, labeled A, B,
and C, which correspond to the three Power (Amplifier) Modules located in the
chassis from left to right, respectively. These LEDs identify which module has an
active fault condition if a fault occurs. Section 5.7 provides details of the power
modules.
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