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== | ||
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===J1 connector=== | ===J1 connector=== | ||
J1 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. | J1 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. | ||
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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]]. | ||
====J1 pin out==== | ====J1 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== | ||
− | + | Nx50 boards may be connected parallel by stacking them by using metallic standoffs to form conductive path between O+, O-, GND, and +12V terminals. J1 connector may be paralleled by inserting multiple 10 pin IDC connectors to the single ribbon cable. All J1 pins are connected parallel pin-to-pin basis. | |
− | Nx50 boards may be connected parallel | + | |
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− | J1 connector may be paralleled by inserting multiple 10 pin IDC connectors to the single ribbon cable. | + | |
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==Usage== | ==Usage== | ||
− | The device starts operating instantly after powered and and proper signals fed to J1 pins. No other initialization is needed | + | The device starts operating instantly after powered and and proper signals fed to J1 pins. No other initialization is needed. |
===CW usage=== | ===CW usage=== | ||
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===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: |
**GND connected to controller's ground reference: | **GND connected to controller's ground reference: | ||
**0-10V current setpoint signal fed to ISET+/ISET- | **0-10V current setpoint signal fed to ISET+/ISET- | ||
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*IMON wired to analog input | *IMON wired to analog input | ||
*VMON wired to analog input | *VMON wired to analog input | ||
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