Catalog excerpts
Quadrature to USB AdapterPage 1 of 7 The QSB is a low cost USB data acquisition device that can count quadrature and index signals from an incremental encoder, provide digital I/O, perform A/D conversion or act as a stepper/motor controller. There are 3 variants that provide a mix of different features. ► QSB-S - One single-ended quadrature, PWM or Analog encoder interface ► QSB-M - One single-ended quadrature, PWM or Analog encoder interface; 4-bits of digital I/O or 2-bits of digital I/O and 1 channel stepper motor control (step/direction) ► QSB-D - One differential quadrature encoder interface and 1-bit of digital I/O The QSB is USB bus powered and is packaged in a slim, compact package that it easy to install. US Digital provides the software, examples and documentation needed to use the QSB. The QSB appears as a COM serial port to the PC, so any application that can read/write the COM port can be used to control the QSB. Features ► Low cost ► Easy to use USB serial port interface ► USB port powered ► Field upgradable software ► Reads Quadrature, PWM and Analog encoders ► Reads quadrature count rate up to 6 MHz ► Motor Step/Direction control outputs ► Four analog and four digital I/O pins ► RoHS compliant DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194
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uss= f|QR DIGITAL VdCwD Quadrature to USB Adapter Page 2 of 7 Software ► www.usdigital.com/support/software/qsb-quadrature-to-usb-adapter-software ► www.usdigital.com/assets/USDProducts.zip (.zip file with installer) QSB-D, QSB-M QSB-S USE= 1400 NE 136th Avenue info@usdigital.com Local: 360.260.2468 DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194
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uss= f|QRDIGITAL VdCwD Quadrature to USB Adapter Parameter Min. Max. Units Operating Temperature 0 70 C Parameter Min. Typ. Max. Units Supply Current (QSB device only) 52 mA Supply Current (External devices) (2) 450 mA (1) Voltage is regulated by USB port (2) USB port capable of supplying 500mA maximum QSB-S Pinout DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194
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Quadrature to USB AdapterPage 4 of 7 Pin 5-Pin Connector 1 Ground Notes: ► Pin 3 EAN0 is an A/D input designed for the MAE3-A10 and MA3-A10 analog output encoders. It can be used as a generic 10-bit A/D in put (0-5V range). ► Pin 3 PWM0 is a pulse width modulation input designed for the 10 or 12 bit PWM output of the MA3/MAE3 encoders. QSB-D, QSB-M Pinout QSB-D QSB-M 1 Digital I/O Digital I/O DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194
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Quadrature to USB AdapterPage 5 of 7 5 A- Digital I/O Channel 2 or Motor Direction A or EAN0 or PWM0 +5 Volts +5 Volts Digital I/O Channel 3 B Notes: ► Pin 6 EAN0 is an A/D input designed for the MAE3-A10 and MA3-A10 analog output encoders. It can be used as a generic 10-bit A/D inp ut (0-5V range). ► Pin 6 PWM0 is a pulse width modulation input designed for the 10 or 12 bit PWM output of the MA3/MAE3 encoders. ^ Encoder Interface (QSB-D, QSB-M, QSB-S only) Parameter Quadurature Encoder Input Frequency PWM Encoder Input Frequency (1) Encoder Single-Ended Interface Low Input High...
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Quadrature to USB Adapter Page 6 of 7 Digital Input Voltage Units Positive-going Input Voltage Threshold (Vin+ Negative-going Input Voltage Threshold (Vin-) Input Voltage Hysteresis (Vin+ - Vin-) Digital High Output Voltage (Note 1) Digital Low Output Voltage (Note 1) Note 1: Output can be externally pulled up to 24V. Open drain MOSFET pulldown capabile of 1.0 A max. continuous current. See digital o utput port circuits below. When driving inductive loads, add an external diode to protect the QSB from damage caused by large voltage transients. ® Stepper motor control (QSB-M only) The speed...
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Quadrature to USB Adapter Page 7 of 7 See the QSB Command Listdocument for detailed information on the QSB's motor control commands.0 Command InterfaceSee the QSB Command Listdocument for detailed information on the commands. ^ Software Field Upgrade The QSB firmware can be easily upgraded using the "QSB Firmware Updater' program that is available on the QSB Software page. There may be periodic upgrades to the QSB firmware that can be loaded as needed by a customer. The firmware upgrades typically t ake less than 30 seconds. QSB -Options S =Single Ended D =Differential & I/O M =Single Ended...
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