Page 16 · 6300 Series
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User’s Manual
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Description
Factory
Default
Vf Limit
This setting controls the maximum amount of
forward current that can be delivered to the laser
diode. This limit is implemented in hardware for
high speed response. For more information about
limits, see see
Hardware and Software Limits
below.
Maximum
Vf Sense
Selects the remote voltage sense lines for diode
voltage measurement. The remote voltage sense
pins must be wired to the diode. See
Using
Remote Voltage Sense
below for more details.
Local
Vf Sense
Warn
When operating in remote voltage sense mode, if
the remote voltage is significantly lower that the
voltage at the
Laser Output
connector, a warning
message is displayed. The setting disabled the
warning. Only available when
Vf Sense
is set to
Remote
.
Yes
Cable R
The cable resistance, in ohms. This setting can be
used to compensate for voltage losses in the cable
due to cable and connector resistances.
Cable R
is ignored in Vf (AVC) Mode.
For more information
about this feature, see
Using the Cable R Setting
below. Not available when using remote voltage
sense.
0.0000
Ω
Int Contact
Enables or disables intermittent contact.
Off
PD Resp
This factor is used by the unit to convert from
monitor photodiode current into optical power. The
value is in terms of microamps per milliwatt
(
μ
A/mW), such that power = photodiode current
divided by the factor.
0.00
μ
A/mW
PD Bias
This is the photodiode bias voltage, which is
applied to the PD+/PD- pins of the output
connector.
5.0V
Tol Time
Tolerance time is the amount of time, in seconds,
that the measured value (current, voltage, etc.)
must be within the set point +/- the tolerance for
the unit to be considered in tolerance. In Io modes,
the tolerance is defined by
Tol Io
. For Im/Po
modes, the tolerance is fixed at 50uA. For Vf
mode, the tolerance is fixed at 50mV.
5 seconds
Tol Io
Tolerance current is a band (in mA) around the set
point. When the actual current is within this band
for longer than the Tol Time setting, then the unit is
considered to be in tolerance.
10.0mA
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