Flexible control

packages for

sucker-rod

artif icial l i f ts

dr ives & systems

V P C ™

Versat i le Pump

Control System

Versatile Pump Control SystemVPC™

The VPC™ system is a family of packaged

rod-pump controllers offering a range of

solutions in a single footprint. VPC™

units are available in four versions

• Stand alone

• Motor starter

• Soft start

• Variable speed

V P C ™ S Y S T E M

VersatileThe VPC™ Versatile Pump Control

system is a family of packaged rod-

pump controller solutions for sucker-

rod pumping (SRP) applications.

From simple stand-alone start/stop

control to the ultimate in variable-

speed well optimization, the VPC™

system lets you choose the appropriate

level of sophistication on a well-by-

well basis. The system is ideal for

large fields of wells of varying

maturity and requirements.

Four-in-OneEach VPC™ unit can be configured

for one of four controller types:

Stand Alone

Provides simple pump-off control

for use with a separate motor control

package.

Motor Starter

Adds an incoming circuit breaker

and a motor-starter contactor for a

single-box solution.

Soft Start

Uses a solid-state motor starter to

extend equipment life by eliminating

torque oscillations and current surges

on starting.

Variable Speed

Uses a variable-speed drive (VSD)

and patented SRP control software

to continuously optimizes production

while protecting the pumping system.

Easy UpgradeThe VPC™ system grows with your

requirements. Begin with a traditional

pump-off controller if you wish,

then upgrade to gain the advantages

of Unico’s industry-leading SRP

control. All four VPC™ versions share

a common footprint, making it easy

to convert from one controller type

to another by simply swapping panels.

A common digital-signal-processor-

based (DSP) control board and

control software minimizes spare part

requirements and operator training.

Works with Any SRPThe VPC™ system works with any

conventional, air-balanced, beam-

balanced, phased-crank, Mark II,

Reverse Mark, and Rotaflex artificial

lifts. It also works with Unico’s

innovative LRP™ linear rod pumps

and CRP™ crank rod pumps when a

compact, unobtrusive mechanical

solution is desired. The VPC™ system

operates new or existing pumping

unit motors up to 50 hp.

While not part of the modularVPC™ family, the RPC RodPump Controller offers thesame features as the Stand-Alone VPC™ controller in aneconomical package

Monitoring andReportingAll four VPC™ options

provide extensive monitoring

and reporting capabilities,

including real-time surface

and downhole dynamometer

plotting, gearbox torque

loading, daily gauging, and

more. Wireless, radio, and

cellular options allow moni-

toring at any distance. Unico’s

Web-based GMC® Enterprise

Monitoring and Control system

provides an efficient, cost-effective

tool for staying on top of daily

operations. Users can monitor

comprehensive real-time and

historical data for multiple fields

simultaneously from virtually

anywhere in the world. Units also

interface to Theta and Case

remote monitoring systems.

Versatile Pump Control SystemVPC™

Versatile control for sucker-rod artificial lift systems

RobustUnits are designed to withstand the

harsh environments of the oil patch.

Weatherproof

VPC™ components are protected

inside a compact, weatherproof

NEMA 4 (IP66) enclosure and

are designed to operate in harsh

temperature extremes.

Electrical Disturbances

VPC™ units tolerate the worst of

electrical environments. They ride

through line fluctuations, high-voltage

transients, and other power distur-

bances that would normally cause

costly downtime.

Electrical Demand

Small pumping units can often be

operated using conventional motor

starters. Solid-state starters can be

used to reduce starting currents on

larger motors. Unico VSDs eliminate

inrush currents and provide near-

unity input power factor with

relatively low harmonic distortion.

SophisticatedSRP ControlUnico’s patented SRP control is

the most advanced in the industry.

The result of ten years of cumulative

development, the SRP software

offers an extensive set of features for

maximizing well production, mini-

mizing downtime, preventing

equipment damage, reducing wear,

and optimizing energy utilization.

Stand Alone Motor Starter Soft Start Variable Speed

load cell inclinometer

sensors optional

Well information is readilyaccessible on site or ata distance

VPC™ units feature fourconfigurable input/outputs asstandard and up to 18 usingthe optional I/O expansionmodule. Plug-in convertersaccommodate a wide varietyof AC and DC voltages andrelay contact outputs.

Versatile Pump Control SystemVPC™

Protected by United Statespatent 7,168,924. Otherpatents are pending.All trade designations areprovided without referenceto the rights of theirrespective owners.Specifications subject tochange without notice.

7/13

Type Stand Motor Soft VariableAlone Starter Start Speed

ProtectionMotorMotor current limiter l lMotor torque limiter l lMotor thermal limiter l l lGearboxGearbox torque limiter lOil, belt, and gearbox service reminders l l l lStuffing BoxGas interference limiter lTubingRod minimum load limiter lRodBridle separation limiter lRod maximum load limiter lRod minimum load limiter lPump fill controller lRod damping controller l

DisplaysMotorMotor voltage l l lMotor current l l lMotor speed l l lMotor torque l l lMechanicalGearbox torque l l l lCounterbalance l l l lCrank speed l l lCrank angle l l lBelt slip l l lBridle separation lRodRod velocity l l l lRod position l l l lRod load l l l lPumpPump velocity l l l lPump position l l l lPump load l l l lSuction pressure l l l lDischarge pressure l l l lPump fill l l l lPump stroke l l l lInferred fluid production daily gauge l l l lLeakage loss daily gauge l l l lAverage pump fill daily gauge l l l lAverage pump speed daily gauge l l l lWellTubing pressure l l l lCasing pressure l l l lFluid level l l l lFluid flow l l l lPowerPower meter l l lInput power l l lOutput power l l lRegenerative power l l lMotor power l l lRod power l l lLift power l l lSystem efficiency l l lEnergy consumption daily gauge l l lGraphicalSurface/downhole dynamometer graphs l l l lPredicted dynamometer graphs l l l lGearbox torque plot l l l lCrank velocity plot l l lRod velocity plot l l l lPump velocity plot l l l lValve check plot l

Data Collection/ReportingWell production/performance report l l l lTime-stamped event and fault logging l l l lTime-stamped user-definable data sampler l l l lActual/as-balanced torque graphs l l l lIPR curve graph l l l lWeb-based enterprise monitoring/control l l l lHead-end software interface (Case, Theta) l l l l

VPC™ Feature ComparisonType Stand Motor Soft Variable

Alone Starter Start Speed

HardwareInput Supply24 V DC or 115/230 V AC l230/460 V AC l l lExtended operating voltage range l l lOptional single-phase operation lEnvironmentalWeatherproof design l l l lExtended operating temperature range l l l lExternal heat dissipation l lOtherLow harmonic distortion l l l lHigh power factor lMass memory option l l l lGraphic display/keypad l l l lIntegral dynamic braking control l

InterfaceInputs/OutputsThree analog inputs l l l lTwo analog outputs l l l lTwelve logic inputs l l l lSix logic outputs l l l lOptional eight analog inputs l l l lOptional four analog outputs l l l lSerial CommunicationsWired local and remote serial ports l l l lStandard Modbus RTU l l l lOptional Modbus Plus, ControlNet,Profibus, and Ethernet l l l l

Bluetooth interface option l l l lMaxStream wireless radio link option l l l lSensorsTransducerless control l l lRod load cell option Required l l lBeam position inclinometer option Required l l lCrank reference switch option l l lTubing pressure sensor option l l l lCasing pressure sensor option l l l l

ControlGeneralSupports all SRP pump types l l l lEmbedded mathematical modeling l l l lPumping system simulator l l l lIntegral IEC 1131 programmable logic l l l lSpeed ReferencesAnalog potentiometers lKeypad/display presets lSerial communications lOptimization controllers lSpeed ControlRotaflex racetrack cornering speed control lExtended motor speed control lSpeed profile control lSelectable up/downstroke speeds lTorque ControlStarting torque manager lGearbox torque economizer lPump Fill ControlPump-off control l l l lPump fill optimizer lGas interference limiter lPump production optimizer lPump dwell speed control lTimer controller l l l lAutomatic restart capability l l l lCold start control lFluid pound eliminator lPower ControlMaximum power limiter lRegenerative power limiter lPower demand economizer lPower flow optimizer lUtility rate saver l l l lAutomatic IdentificationAdaptive pump fill trigger level l l l lAutomatic counterbalance check l l l lAutomatic pumping system identification l l lAutomatic downhole pump valve check l

Corporate Headquarters

Unico, Inc.3725 Nicholson Rd.P. O. Box 0505Franksville, WI53126-0505262.886.5678262.504.7396 f a x

www.unicous.com

UNICO–Worldwide

Unico is a leading global innovator of motion-control solutions for industry. Founded in 1967, thecompany develops, manufactures, and services variable-speed drives, application-engineereddrive products, integrated drive systems, and ancillary products that improve operations byincreasing productivity, safety, and equipment life while lowering energy and maintenance costs.

A Regal Brandwww.regalbeloit.com