Editing Intensify Nx50 setup guide
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In case of any questions, please don't hesitate to [[Granite Devices support|contact us]]. | In case of any questions, please don't hesitate to [[Granite Devices support|contact us]]. | ||
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==Physical installation and cooling== | ==Physical installation and cooling== | ||
Nx50 should be mounted inside an enclosure by using spacer feet attached to the four corner holes. | Nx50 should be mounted inside an enclosure by using spacer feet attached to the four corner holes. | ||
− | [[File:IntensifyEfficiency.png | + | [[File:IntensifyEfficiency.png|thumb|right|Nx50 (single board) efficiency vs load current at various laser diode forward voltages]] |
Nx50 has low power losses due to highly efficient multiphase switching converter technology. Power loss can be calculated by using the offered efficiency data as setpont. | Nx50 has low power losses due to highly efficient multiphase switching converter technology. Power loss can be calculated by using the offered efficiency data as setpont. | ||
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==Wiring== | ==Wiring== | ||
− | + | ===CMD connector=== | |
− | === | + | CMD connector is the user side I/O of the driver. This connector contains the control and feedback signals. All signal lines of the port are ESD protected by dedicated suppressors. |
− | + | ||
Mating connector type is a 10 pin flat ribbon cable connector with 0.1"/2.54 mm pin pitch and a polarity key. See spec sheet of compatible connector [[Media:idc10pin_connector.pdf|here]]. | Mating connector type is a 10 pin flat ribbon cable connector with 0.1"/2.54 mm pin pitch and a polarity key. See spec sheet of compatible connector [[Media:idc10pin_connector.pdf|here]]. | ||
− | ==== | + | ====CMD pin out==== |
− | [[File:idc10pin.png|thumb | + | [[File:idc10pin.png|thumb|10 Pin IDC connector pinout]] |
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
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|| 10 kOhm | || 10 kOhm | ||
|- | |- | ||
− | | 2 || GND|| | + | | 2 || GND|| || I/O and Analog ground || 0 Ohm |
|- | |- | ||
| 3 || IMON|| Out ||Current monitor 0-10 V analog output || 1 kOhm | | 3 || IMON|| Out ||Current monitor 0-10 V analog output || 1 kOhm | ||
|- | |- | ||
− | | 4 || GND|| | + | | 4 || GND|| Out ||I/O and Analog ground || 0 Ohm |
|- | |- | ||
| 5 || VMON|| Out||Voltage monitor 1:1 analog output || 1 kOhm | | 5 || VMON|| Out||Voltage monitor 1:1 analog output || 1 kOhm | ||
|- | |- | ||
− | | 6 || GND|| I/O and | + | | 6 || GND|| Out|| I/O and Analog ground || 0 Ohm |
|- | |- | ||
| 7 || ISET+|| In||Current setpoint 0-10 V positive input (differential) || 51 kOhm | | 7 || ISET+|| In||Current setpoint 0-10 V positive input (differential) || 51 kOhm | ||
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|| 6.6 kOhm | || 6.6 kOhm | ||
|- | |- | ||
− | | 10 || GND|| | + | | 10 || GND|| || I/O and Analog ground || 0 Ohm |
|} | |} | ||
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| Logic LOW|| -0.3 .. 0.6V | | Logic LOW|| -0.3 .. 0.6V | ||
|- | |- | ||
− | | Logic HIGH|| | + | | Logic HIGH|| 3.0 - 26 V |
|} | |} | ||
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For example outputting 40A to 2.0V diode equals output power of 80W. With losses the needed power is about 85-90W which equals 7.0-7.5A @ 12V. | For example outputting 40A to 2.0V diode equals output power of 80W. With losses the needed power is about 85-90W which equals 7.0-7.5A @ 12V. | ||
===Laser diode=== | ===Laser diode=== | ||
− | Laser diode is connected to hole terminals labeled '''O+''' and '''O-'''. O+ goes to LD anode and | + | Laser diode is connected to hole terminals labeled '''O+''' and '''O-'''. O+ goes to LD anode and 0- to cathode. |
==Connecting parallel== | ==Connecting parallel== | ||
− | + | To be written | |
− | + | ||
− | + | ==Usage== | |
+ | The device starts operating instantly after powered and and proper signals fed to CMD pins. No other initialization needed, however following start up & shut down sequences are recommended to prevent current overshoot. | ||
− | + | Note: items with "''or''" means that either of these should be fulfilled or both of them. However fulfilling both does not cause further improvement. | |
− | + | ||
− | + | ||
− | + | ;Power-on | |
+ | #ENABLE=HIGH and PULSE=HIGH ''or'' ENABLE=HIGH and ISET=0V (start condition) | ||
+ | #power on 12V | ||
+ | #set ENABLE to LOW | ||
+ | #set PULSE=LOW ''or'' set ISET to desired voltage. | ||
− | == | + | ;Power-off |
− | + | #set PULSE=HIGH ''or'' ISET=0V (this step optional) | |
+ | #set ENABLE=HIGH | ||
+ | #power off 12V | ||
+ | {{Warning|Follow power-on and power-off sequences when using prototype version of Nx50. In final release these requirements shall be removed.}} | ||
===CW usage=== | ===CW usage=== | ||
;Mandatory connections: | ;Mandatory connections: | ||
*LD connected between O+/O- | *LD connected between O+/O- | ||
*12VDC supply connecter between +12V/GND | *12VDC supply connecter between +12V/GND | ||
− | * | + | *CMD connector pins: |
− | ** | + | **GNDA connected to controller's ground reference: |
**0-10V current setpoint signal fed to ISET+/ISET- | **0-10V current setpoint signal fed to ISET+/ISET- | ||
− | **ENABLE set to | + | **ENABLE set to LOW or tied to GNDA |
− | ;Optional | + | ;Optional CMD connections: |
− | *IMON wired to analog input | + | *IMON+/IMON- wired to analog input |
− | *VMON wired to analog input | + | *VMON+/VMON- wired to analog input |
*PULSE set to HIGH or left open | *PULSE set to HIGH or left open | ||
===Pulsed usage=== | ===Pulsed usage=== | ||
− | [[File:Intensify pulseon50A.png | + | [[File:Intensify pulseon50A.png|thumb|LD current rise from 2.5A to 50A when PULSE set to LOW]] |
− | [[File:Intensify pulseoff50a.png | + | [[File:Intensify pulseoff50a.png|thumb|LD current fall from 50A to 2.5A when PULSE set to HIGH. Current typically dips to 0A temporarily.]] |
For pulsed usage it is recommended to use PULSE input or modulate the ISET analog voltage. It is not recommended to set current to 0 during off-periods for to achieve faster pulse rise times and zero overshoot. Recommended bias current during off-periods is 2-10% of current setpoint. | For pulsed usage it is recommended to use PULSE input or modulate the ISET analog voltage. It is not recommended to set current to 0 during off-periods for to achieve faster pulse rise times and zero overshoot. Recommended bias current during off-periods is 2-10% of current setpoint. | ||
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*LD connected between O+/O- | *LD connected between O+/O- | ||
*12VDC supply connecter between +12V/GND | *12VDC supply connecter between +12V/GND | ||
− | * | + | *CMD connector pins: |
− | ** | + | **GNDA connected to controller's ground reference: |
**0-10V current setpoint signal fed to ISET+/ISET- | **0-10V current setpoint signal fed to ISET+/ISET- | ||
− | **ENABLE set to | + | **ENABLE set to LOW or tied to GNDA |
− | **PULSE set pulse source. Logic LOW means 100% of set current and HIGH reduces output current to | + | **PULSE set pulse source. Logic LOW means 100% of set current and HIGH reduces output current to 5% (bias current to allow faster rise time) |
− | ;Optional | + | ;Optional CMD connections: |
− | *IMON wired to analog input | + | *IMON+/IMON- wired to analog input |
− | *VMON wired to analog input | + | *VMON+/VMON- wired to analog input |
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