28 Jun MPPI SOFTWARE GUIDE
1 Home screen
2 Splash screen
MPPI selection
The MPPI system can be visualized in the screen page. You can select between several MPPI if they are in the same local network or connected using the USB port to the same computer. Double-click your MPPI to connect to it.
CONFIGURATION FILE dialog
The configuration of the MPPI is saved both in the MPPI and the PC. If these files are different, a prompt will show to select one of the configurations.
3 Configuration
System configuration
Contains:
-MPPI general info
-Serial number
-Software /firmware version.
Laser / TEC General configuration
Each TEC controller can be paired to one or more Current controllers. If the temperature goes outside the defined temperature window, both the TEC and Current will be shut down for safety purposes.
Short circuit alarms can be disabled in the Current controllers. This is useful if the lasers are running with very low currents (below 10 mA, e.g. VCSELs).
Alarm log
An alarm log is created here. Right click on the selected alarm entry to export the file (CSV, Excel or text).
4 LDC/E-Current extended settings
Saving and exporting a graph
You can save the graph traces with the SAVE TRACES button or you can right click the graphs for more options.
Variant selection
Select the variant of your Current controller here (200 or 500 mA).
Voltage measurement range
Select the voltage measurement range of your controller (by default it will be shipped with +-5V)
Voltage zero
You should “reset” the voltage value once you have your laser (disabled) connected. In this way, the system can substract the effect of connection, cables and other voltage drops.
In the main screen, after connecting a laser in disable position, click on “Zero”.
Take in mind that several of the alarms and status are related and detected through the voltage measurement, so it is important that you “Zero” a channel to have a proper voltage measurement and status detection.
5 LDC/E-Temp3 extended settings
Saving and exporting a graph
You can save the graph traces with the SAVE TRACES button or you can right click the graphs for more options.
Saving parameters
You can save the PID parameters and maximum TEC current values as default, so they will appear in the next sessions.
PID configuration
Manual configuration of PID parameters.
PID Autotune
STEP 1. Configure the temperature step to be applied (e.g. 1 ºC, 5ºC,…)
STEP 2. Click the spanner icon to initiate the temperature step and autotune.
STEP 3. A real time response will be visible and the PID parameters will initially change but after several seconds, they will converge to a fixed value.
STEP 4. Select use the new PID values or maintaining the previous one.
6 Firmware updater
To update the SOM/E
firmware, select the file and
press UPDATE
