Vescent D2-105, Руководство пользователя

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Last update: 2021/12/17 00:00 d2:laser_controller https://www.vescent.com/manuals/doku.php?id=d2:laser_controller
https://www.vescent.com/manuals/ Printed on 2021/12/18 07:41
switch in figure) and T2 Differential poles (second DIP switch
in figure) for units with S/N 2675 or higher (PCBs with S/N
6987 and higher)
T1
Prop.
On
0.47 s 1.0 s 2.2 s 4.7 s 10 s 22 s 47 s
On x
Off x x x x x x x
T1 Diff. On 0.1 s 0.22 s 0.47 s 1.0 s 2.2 s 4.7 s 10 s
On x
x x x
Off x x x x
Tab. 4: Factory settings of T1 Proportional poles (third DIP
switch in figure) and T1 Differential poles (fourth DIP switch
in figure) for units with S/N 2675 or higher (PCBs with S/N
6987 and higher)
To reset the temperature loop parameters to the approximate settings for a Photodigm TOSA DBR
Laser:
The T1 loop is not used as the TOSA only has one TEC. 1.
Set the T2 dip switches to the configuration shown in table 5 . 2.
Measure the resistance across GND5 and probe point GAIN2. Set this resistance to between 3.
1.01 kΩ and 1.03 kΩ by adjusting trimpot PROPGAIN2.
T2
Prop.
On 0.047
s
0.1 s 0.22 s
0.47
s
1.0 s 2.2 s
4.7
s
On x
Off x x x x x x x
T2
Diff.
On
0.01 s
0.022
s 0.047
s
0.1 s
0.22
s 0.47
s 1.0
s
On x x
Off x x x x x x
Tab. 5: Factory settings of T2 Proportional poles (first DIP
switch in figure) and T2 Differential poles (second DIP switch
in figure) for units with S/N 2675 or higher (PCBs with S/N
6987 and higher) when using a Photodigm TOSA DBR Laser
Laser Controller Serial Numbers 2674 and below; Temperature Control Board Serial
Numbers below 6987
To reset the temperature loop parameters to the factory settings:
Set the dip switches to the configuration shown in table 6 and table 7 and figure 5 . 1.
Measure the resistance at probe points GAIN1 and GAIN2. Set GAIN1 and GAIN2 between 715 Ω 2.
and 785 Ω by adjusting trimpot PROPGAIN1 and PROPGAIN2, respectively.