Related Manuals for ABB DLynxII Series
Summary of Contents for ABB DLynxII Series
- Page 1 APPLICATION NOTE for DJT090_DLynxII_Series_Parallel_Evaluation_Board V1.2 ©2020 ABB. All rights reserved.
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Page 2: Table Of Contents
PMBus Turn-on/Turn-off ......................... 11 Switch between PMBus and EN control ..................11 Parallel configuration (8 parallel) ....................12 Parallel configuration (4 parallel) ....................12 Q&A ................................13 SCHEMATIC .............................. 14 APPENDIX: DPI-CLI Script Examples ....................17 ©2020 ABB. All rights reserved. -
Page 3: Description
DJT090 parallel EVM is preconfigured which provides maximum ease to evaluate. See below list for required equipment and accessory. • Power supply (20V/100A and up is recommended) • DC Load (Chroma 63600 Modular DC Electronics Load is recommended, 80V/80A/10- channel) • ABB USB-I2C Dongle • PC with DPI-CLI Tool ©2020 ABB. All rights reserved. -
Page 4: Optional Equipment And Accessory
Optional Equipment and Accessory Standard probing technics can be performed, ABB encourages user to use co-axial cable for output signal measurement in order to examine the ideal performance of DJT090. User is recommended to prepare following equipment and accessory for proper measurement and on-board pulse load control. - Page 5 Redundant SMA socket for pulse load current read back (DNP) M_VOUT SMA socket for output voltage measurement PMBus PMBus port for connecting to ABB USB to I2C dongle, notice Pin1 location IN/OUT_SYNC SMA socket for measure SYNC signal SWITCH Mechanical switch for turn on/off EVM, notice on/off direction...
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Page 6: Input/Output Cable
720A. Cable voltage drop must be controlled in this application. For continuous 360A and above operation, ABB recommends user to develop proper bus bar to distribute currents. Multiple DC load in parallel is a must for sinking 720A. In general, output connection should be kept as short as possible by means of reducing voltage drop on each cable. -
Page 7: Enable Switch
All ABB measurement are evaluated at 12V rated input. The default output of DJT090 EVM is set to be 1.2V. Connect ABB USB to I2C dongle to PMBus port (notice pin 1 location) with PC, then use ABB DPI-CLI tool to start the DJT090 (PMBus turn on is required for the first time, it can be changed to EN turn on via PMBus once the EVM is confirmed to be functional correctly). -
Page 8: On-Board Channel Current Measurement
Use a Multimeter mV range to measure exact output current of each channel. The conversion ratio for voltage to current is 15mV/A. Take extra caution while probing, do not short the shunts to the measurement points. ©2020 ABB. All rights reserved. -
Page 9: On-Board Pulse Load
ICHECK1 shows a 1V step with a 1us rising time, it is equivalent to apply a 166A/us trainset on the output rail. To be noted, noise can be seen on the measurement due to nearby DJT090, use average value to measure high level voltage. ©2020 ABB. All rights reserved. -
Page 10: Loadslammer Tm
CHANNEL REDUCTION ABB supplies 4 and 8 parallel EVM by default. If 2,3,5,6,7 DJT090 operation is desired, PMBus reconfiguration is a must and board modification is recommended. Each channel contains an output shunt resistor. By removing the shunt resistor, the associated DJT090 and its output capacitors will be disconnected to the loading point. -
Page 11: Pmbus Commands
For example, configure used channels as PMBus startup and configure unused channels as EN startup. This potentially will prevent unused channels to operate. Consult local ABB FAEs for more details. PMBUS COMMANDS In this application note, only limited commands are included. All settings must be saved to user NVM before power cycle, otherwise all changes will be lost. -
Page 12: Parallel Configuration (8 Parallel)
8-channel EVM from manufacturing setting. See appendix for CLI-DPI script examples. To be noted, master device USER_CONFIG(0x01) must be configured before slave devices. Consult local ABB FAEs for more info. Register to be modified: •... -
Page 13: Q&A
A: Cable voltage drop is recommended to control under 0.2V. Q: How to use DPI-CLI script? A: Under DPI-CLI installing folder, create a txt file. Copy/paste the example script in the txt file. In DPI-CLI command line, enter “i Filename.txt”. ©2020 ABB. All rights reserved. -
Page 14: Schematic
SCHEMATIC Example of 2 channel Parallel Configuration Diagram Main Power Train, only one channel is shown (1 out of 8) The rest channels are duplicated ©2020 ABB. All rights reserved. - Page 15 Aux circuitry Pulse Load, only one channel is shown (1 out of 16) The rest channels are duplicated ©2020 ABB. All rights reserved.
- Page 16 Any reproduction, disclosure to third parties or utilization of its contents – in whole or in parts – is forbidden agreed particulars shall prevail. GE by ABB does not accept any responsibility whatsoever for potential errors or possible lack of without prior written consent of GE by ABB information in this document.
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Page 17: Appendix: Dpi-Cli Script Examples
W 15 M 30 W d1 SYNC_CONFIG:EXT_CLOCK w d3 E007 w 37 14 w 25 1.26 w 26 1.14 w 42 1.32 w 43 1.08 w 21 1.2 W 15 *for DPI_CLI ver. 1.64 and above ©2020 ABB. All rights reserved. - Page 18 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: EVAL_DJT090A0X43-SRPZ (2 module)