ac-fan-control-ac-motor-control-smartfan

AC Fan & Motor Speed Controls

 

Control Resources is a leading manufacturer of AC motor speed control products that control motors, fans or pumps for a variety of industry applications with current rating up to 18 amps. Our AC motor speed controls regulate motor speed based on inputs that include temperature, analog (0-20mA, 0-10VDC) signal or remote transducer control. Mounting options include DIN rail, open frame, with and without metal enclosures. Control Resources is an OEM (Original Equipment Manufacturer) supplier of fan and motor speed control and alarm products. Our products are not intended for end-user/after market applications.

When a DC fan or motor is available and DC power is available, nothing beats a DC control for energy savings, cost, size, safety or controllability. When circumstances do not permit the use of a DC fan or motor, CRI offers 3 AC motor speed control technologies to consider; TRIAC (voltage or phase control), VFD (Variable Frequency Drive), or ECM (Electronically Commutated Motor) as well as an AC-DC drive for high-voltage DC brush motors.

Standard SmartFan AC Fan & Motor Speed Control Products

Model

Current Rating

Motor Type

Control Technology

Control Options

Input Voltage Range
(AC, Single Phase)

Programming Options

 ac fan control ac motor control smartfanstratusii1Stratus II

4A @ 40ºC

1 Phase or 3 Phase Inverter duty

VFD

Temperature, analog (0-5V, 0-10V, 4-20mA), transducer, potentiometer, Modbus, fixed speed

104 – 253 VAC

 ac fan control ac motor control smartfanNavigator Programmer SmlSmartFan Navigator
Programmer

or Factory set-up
 ac fan control ac motor control smartfannimbus 150x150Nimbus

7.5A @ 40ºC

1 Phase TRIAC controllable induction motor

TRIAC

Temperature, analog (2-10V, 4-20mA), transducer, potentiometer, fixed speed

95 – 250 VAC

Dip Switches or
Factory set-up

 ac fan control ac motor control smartfannimbus hp 150x150Nimbus HP

18A @ 65ºC

1 Phase TRIAC controllable induction motor

TRIAC

Temperature, analog (2-10V, 4-20mA), transducer, potentiometer, Modbus, fixed speed

85 – 300 VAC

Dip Switches or
Factory set-up

 ac fan control ac motor control smartfanCirrus ECM Motor Control1 150x150Cirrus-ECM

N/A

ECM

ECM

Temperature, analog (0-5V, 0-10V, 4-20mA), transducer, potentiometer, Modbus, fixed speed

22- 26 VAC

 ac fan control ac motor control smartfanNavigator Programmer SmlSmartFan Navigator
Programmer

or Factory set-up
 ac fan control ac motor control smartfancustom ac motor control 150x150Custom AC Motor
Speed Control

Control Resources specializes in customizing existing designs as well as providing all new custom controls to meet your specification. For more information visit our Custom SmartFan Controls and Alarms page or talk to one of our engineers.

Email: sales@controlres.com or call 978-486-4160.

Use AC Power to a High-Voltage DC Brush Motor

Model

Supply Voltage

Current Rating

Motor Voltage

Motor Connections

Control Options

Programming Options

 ac fan control ac motor control smartfanEclipse ppt

Eclipse

80 – 132 VAC
160 – 264 VAC

5A @ 55C

0 – 140 VDC
0 – 280 VDC

1

5 kOhm Potentiometer, Analog (0-5V, 0-15VDC, 0-20mA)

 ac fan control ac motor control smartfanNavigator Programmer SmlSmartFan Navigator Programmer
or Factory set-up

 ac fan control ac motor control smartfandc brush motor drive vsmallCustom Design

Control Resources specializes in customizing existing designs as well as providing all new custom controls to meet your specification. For more information visit our Custom Motor Controls and Alarms page or talk to one of our engineers.

Email: sales@controlres.com or call 978-486-4160.

Control Technology Overview: TRIAC, VFD & ECM AC Motor Speed Control

 ac fan control ac motor control smartfannimbus 150x150 TRIAC Control: Nimbus, Nimbus-HP

If system cost is the number one concern, choosing an induction motor [Permanent Split Capacitor (PSC) or Shaded Pole] and a compatible TRIAC control may be the way to go. TRIAC controls also tend to be more energy efficient at higher speeds than VFDs. Drawbacks of this technology include relatively high minimum speeds and potentially nonlinear control curve (input signal vs. motor speed).

Please check out our AC Motor Compatibility page for an explanation of the TRIAC AC motor speed control motor requirements and risks.

 ac fan control ac motor control smartfanstratusii1 VFD Control: Stratus-II

Not all AC motors are TRIAC controllable. In many of these cases, an inverter duty motor can be successfully controlled with a Variable Frequency Drive (VFD). VFDs tend to be more energy efficient than TRIAC controls at lower speeds and can be run at lower speeds. Drawback to VFDs include, controller cost, size and potential bearing noise.

Please check out our AC Motor Compatibility page for an explanation of the Variable Frequency Drive AC motor speed control motor requirements and risks.

 ac fan control ac motor control smartfanCirrus ECM Motor Control1 150x150 ECM Control: Cirrus-ECM

In recent years, the availability of ECM motors has greatly increased. These are basically DC motors with built-in transformers allowing them to be powered from the AC line. As a result, these motors are the most energy efficient and easiest (inexpensive and accurate) to control. But of course there is no such thing as a free lunch. ECM motors can be pricey and are not always available in the size required.

TRIAC, VFD & ECM AC Motor Speed Control Comparison

TRIAC / Phase Control Variable Frequency Drive ECM Control
Energy Use Good* Good* Best
Controller Accuracy Good Better Best
Low Speed Capability (<50%) Good Better Best
Motor Availability Better Best Low
Induced Bearing Noise Better Good Best
Controller Size Small Large Small
Controller Cost Low High Low
Motor Cost Low Low High

*TRIACs are often more energy efficient at higher speeds, Variable Frequency Drives are more efficient at lower speeds.

Applications – TRIAC, Variable Frequency Drives, & ECM AC Motor Speed Control

 ac fan control ac motor control smartfanhome pump blue
Pump Control
SmartFan AC motor speed control products are capable of controlling small AC pumps.
 ac fan control ac motor control smartfanAC Motor Speed Control home cleanroom
Clean Room Pressurization
SmartFan AC motor speed control products can be used to help keep positive pressure in clean rooms.
 ac fan control ac motor control smartfanAC Motor Speed Control home pool
Humidity Control

SmartFan AC motor speed control products
can automatically regulate fan speed when connected to a humidity sensor.
 ac fan control ac motor control smartfanAC Motor Speed Control home ventilation
Ventilation

SmartFan AC motor speed control products
can be used with a ceiling fan, attic ventilator or duct fan to remove hot air or noxious fumes.
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Initially designed for our own engineering lab, CRI also offers versatile, low cost test equipment for test benches, laboratories, field work and repair facilities.