AMETEK Ls Series - Manual (Page 59)

User Manual Lx / Ls Series
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4.1.3 Status Indicator Lights
Eight 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 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 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 is asserted by the IEEE
controller. If the RS232C 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 on/off The Output on/off LED indicates the output relay status. If the
LED is off, the output relays for all output phases are open and
the external sense lines are wrapped around internally. If the
LED is on, the output relays are closed and the external sense
lines are connected to the SENSE terminal block.
ØA, ØB, ØC The ØA, ØB, ØC LED indicates the output phase selection for
either settings or measurements. Phase selection can be
changed using the Phase button to the right of the MEMU keys.
Pressing the Phase button repeatedly will cycle through phase
A, B, C and ALL PHASES. The ØA, ØB, ØC indicators
correspond to outputs Ø1, Ø2 and Ø3 on the Lx Series rear
panel and ØA, ØB, ØC on the Ls Series rear panel respectively.
If all three phase selection LED's are lit, all three phases are
selected and changes made to voltage and current limit settings
will apply to all three phases.
Note that in single phase mode, the ØA LED is always lit and
the Phase button is inactive.