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VRO Overview

VRO Overview
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VRO Encoder Readout The Velmex Read Out (VRO) is a compact one and two axes digital readout for linear and rotary incremental encoders. The VRO uses the latest OLED display and DSP microcontroller technology for a high performance ultra-precise digital position readout. Designed for differential type encoders, the VRO is also fully compatible with single ended encoders. Features · Compatible with all 5V Incremental Encoders · High speed differential line driver interface · 9 digit plus decimal point, direction, axis and unit labels · 4x quadrature decoding for highest resolution · Easy front panel and PC configuration Ultra-Precision · Inch/Metric selectable units Measurement System · Decimal degrees/revolutions selectable units · Full RS-232/USB communication · 1.6 Mhz counting rate · Automatic memory back-up of settings · Sleep mode · Self diagnostics · Encoder inputs with Schmitt triggers & digital filtering · Input voltage monitoring · Over voltage and over current protected · Button “stuck” monitoring · Data Send button with resettable totalizer of # presses · Fractional scaling for highest accuracy · Highly visible, wide angle viewing OLED display · Remote Send, Clear, Unit button Inputs · Programmable data output format · 1 or 2 axis (VRO-1, VRO-2) · User settable scaling, decimal place, axis and unit labels · Pass through mode for custom display messages · All I/Os ±15,000 volt ESD protected · UL/IEC category low voltage (5VDC) device · Universal input AC Power adapter with UL, CE, TUV ratings · 3 year Limited Warranty 800-642-6446

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VRO Encoder Readout Serial Computer Interface Auxiliary Inputs: Send Button (Save/Exit in Setup) Clear Button (Change in Setup) Encoder 2 Connection (VRO-2 Only) DC Power Input Unit Button (End in Setup) Status Light On= Primary Unit Displayed (On= Encoder 1 in Setup)

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VRO Encoder Readout Options International Power Adapter Plugs USB to RS232 Serial Cable for interfacing to all computers #VRO-PLG-UK #VXM-USB-RS232 AC Power Strip provides on/off switch and surge protection Protective Rubber End Caps for VRO-1 & VRO-2 protects corners from rough use #VRO-PWRSTRP #VRO-ENDCAP USB Power Cable for remote use to power from laptop or automobile IP64 Protective Clear Vinyl Bag keeps VRO dry when transporting outdoors Dovetail Mounting Flanges for fixed permanent installation VRO Display Mode Commands E F C or N < > U u B Enable On-Line/Setup mode with echo "on"...

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VRO Encoder Readout VRO On-Line/ Setup Mode Commands Q Quit On-Line mode (return to Display mode) quit Quit On-Line mode without backing-up changes res Reset VRO (returns to Power-up display) fpsetup Display Front Panel setup menu lock Disable Front Panel setup mode at power-up unlock Enable Front Panel setup mode at power-up (default) I1v Preset encoder 1 (raw) count to value “v”, v= 0 to +/- 2147483647 I2v Preset encoder 2 (raw) count to value “v”, v= 0 to +/- 2147483647 PT[[ Start Pass-Through mode ] Close Pass-Through mode and maintain current screen ]] Close Pass-Through mode and...

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VRO Encoder Readout Specifications Models VRO-1 (one axis version) VRO-2 (two axis version) VRO-1B (one axis version with tilt base) VRO-2B (two axis version with tilt base) VRO-1H (one axis version with hinge) RS-232 Port Configuration 8 Data, No Parity, 1 Stop, 9600 baud rate default (19200, 38400 baud rate user settable) Performance Maximum displayable count: ±999,999,999 Maximum internal count: ±2,147,483,647 Maximum count rate: 1.6 MHz Encoder Inputs: 4x quadrature differential line receivers, Schmitt trigger with low pass digital ltering Maximum power output: 330ma per encoder RoHS...

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