Error Indicators; Comm; Table 2.2 Ldx-32420 Error Indicators - ILX Lightwave LDX-32420 User Manual

2
C H A P T E R
adjust knob is turned, the instrument automatically changes to set point mode
indicated by the display mode enunciator flashing and adjusts the output current
set point value. Pushing the FINE button to the left of the adjust knob decreases
the rate of change of the set point adjustment and is indicated by the illumination
of the LED above the push button.

Error Indicators

The LDX-32420 High Power Precision Current Sources indicate general
operational error conditions. Each error condition results in an action as shown in
the table below.

Table 2.2 LDX-32420 Error Indicators

Error Condition
Interlock
Open Circuit
Current Limit
Voltage Limit
Power Limit

COMM

• REMOTE: indicates the unit is under remote operation
• TALK LISTEN: indicates remote communications to and from the
instrument through GPIB or USB computer interfaces
• LOCAL: removes the instrument from remote operation and
displays the GPIB address
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 LDX-32420
O P E R A T I O N
Front Panel Operation
Action
Output off; INTERLOCK light flashes at 1 Hz
Output off; OPEN CIRCUIT light flashes at 1 Hz; if this condition was caused by
an excessive voltage, the VOLTAGE LIMIT light will also be illuminated.
CURRENT LIMIT light flashes at 1 Hz
VOLTAGE LIMIT light flashes at 1 Hz; this indicator warns that the output is within
0.25 V of LIM V setting; if the voltage limit (LIM V) is reached, the LASER output
will shut off.
Output off; POWER LIMIT light flashes at 1 Hz