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Speed Control Motors

For applications where variable speeds are necessary, typically an AC motor with an Inverter or brush motors are used. Brushless DC motors are an advanced option due to their wide speed range, low heat and maintenance-free operation. Stepper Motors offer high torque and smooth low speed operation.

Speed is typically controlled by manual operation on the driver or by an external switch, or with an external 0~10 VDC. Speed control systems typically utilize gearheads to increase output torque. Gear types range from spur, worm or helical / hypoid depending on torque demands and budgets.

Mounting configurations vary to depending on space constraints or design of the application.

Comparison
Brushless DC Motors
Inverters
Stepper Motors
Applications

Choosing the Right Motor: AC Gear Motor vs. Brushless DC Motor, Which is Better?

Low Heat / High Efficiency

Brushless DC motors use permanent magnets in the rotor and produce low heat due to their high efficiency, are cleaner and are maintenance free because there are no brushes to replace. Brushless DC motors offer 80-4000 r/min with a flat torque curve allowing for constant speed with varying loads.

DC Gear Motor Power Consumption

Motor Footprint

Brushless DC motor’s torque density is higher than AC gear motors, allowing for a more compact design. Using hall effect sensors allows for closed loop control and maximum design flexibility.

Compact Brushless DC Motors

Speed Control Motor Comparison

	Brushless DC Gear Motor and Driver	AC Speed Control Systems	Three-Phase Gear Motor and Inverter
	Quick View	Quick View	Quick View
Features	Compact Size Multiple Geared Motor Options High Efficiency / Lower Operating Temperature Torque Control	High Torque Type SCM Series Motors Vertical Operation Plug & Play	Multiple Geared Motor Options Auto-Tuning / Dynamic Torque Vector Control Automatic Torque Boost / Slip Compensation RS-485 Networking
Composition	Permanent Magnet DC Motor with Hall Effector Sensor or Encoder Feedback + Dedicated Driver	Single-Phase AC Motor with Tachogenerator Feedback + Dedicated Controller	Three-Phase Induction Motor + General-purpose Inverter
Output Power	15 W (1/50 HP) up to 400 W (1/2 HP)	6 W (1/125 HP) up to 90 W (1/8 HP)	90 W (1/8 HP) up to 3 HP
System Type	Closed-loop Control	Closed-loop Control	Open-loop Control
Speed Setting Methods	Digital/Analog (up to 16 speeds)	Digital/Analog (up to 4 speeds)	Digital/Analog (up to 16 speeds)
Rotation Speed (speed ratio)	80 ~ 4000 r/min (1:50)	90 ~ 1600 r/min (1:18)	90 ~ 3600 r/min (1:40)
Efficiency / Energy Saving	High efficiency with permanent magnet motor	Low Efficiency with AC Motors	Low Efficiency with AC Motors
Speed Regulation (load)	±0.2 ~ ±0.05%	±1%	-3 ~ -15%
Responsiveness	High	Low	Low
Overrun	Controlled	Varies	Varies
Suitable Operations	When speed changes, torque and speed are kept stable Space Savings / Low Heat Output Simple Load Holding Torque	When speed needs to be changed easily Vertical operations	When speed needs to be changed quickly Torque requirements above 1/2 HP
Speed - Torque Characteristics
Learn More	Brushless DC Motors and Drivers	AC Speed Control Systems	Three-Phase Gear Motors and Inverters

Brushless DC Motor Comparison

Product Series	BLE2 Series Brushless DC Motors (AC Input)	BMU Series Brushless DC Motors (AC Input)	BX II Series Brushless DC Motors (AC Input)	BLH Series Brushless DC Motors (DC Input)	BLV Series Brushless DC Motors (DC Input)
Product Series	Quick View	Quick View	Quick View	Quick View	Quick View
Features	Advanced Performance Torque Control Digital Display	Easy-to-Use Simple Set Up and Wiring Digital Display	High Performance Speed, Positioning and Torque Limiting Control	Compact Board Type Driver	Network Communications (I/O or RS-485)
Output Power	30 W (1/25 HP) 60 W (1/12 HP) 120 W (1/6 HP) 200 W (1/4 HP) 400 W (1/2 HP)	30 W (1/25 HP) 60 W (1/12 HP) 120 W (1/6 HP) 200 W (1/4 HP) 400 W (1/2 HP)	30 W (1/25 HP) 60 W (1/12 HP) 120 W (1/6 HP) 200 W (1/4 HP) 400 W (1/2 HP)	15 W (1/50 HP) 30 W (1/25 HP) 50 W (1/15 HP) 100 W (1/8 HP)	200 W (1/4 HP) 400 W (1/2 HP)
Power Supply	Single-Phase 100-120 VAC Single/Three-Phase 200-240 VAC	Single-Phase 100-120 VAC Single/Three-Phase 200-240 VAC	Single-Phase 100-120 VAC Single/Three-Phase 200-240 VAC	24 VDC	24VDC 48 VDC
Gear Types	Parallel Shaft H1 Food-Grade Parallel Shaft Parallel Shaft (Foot Mount) Right-Angle Hollow Shaft Round Shaft (no Gear)	Parallel Shaft H1 Food-Grade Parallel Shaft Parallel Shaft (Foot Mount) Right-Angle Hollow Shaft Round Shaft (no Gear)	Parallel Shaft Hollow Shaft Flat Round Shaft (no Gear)	Parallel Shaft Hollow Shaft Flat Round Shaft (no Gear)	Parallel Shaft Hollow Shaft Flat Round Shaft (no Gear)
Available Options	IP44/IP66 Types	IP44/IP66 Types	IP54 Rated Electromagnetic Brake	IP65 Rated	IP40 Rated Electromagnetic Brake
# of Speed Settings	16 settings	4 settings	16 settings	2 settings	2 settings 8 settings* (with control module)
Speed Control Range	80 ~ 4000 r/min	80 ~ 4000 r/min	2 ~ 4000 r/min	100 ~ 3000 r/min	100 ~ 4000 r/min (80 ~ 4000 r/min*)
Rated Torque	0.85 to 3815 lb-in	0.85 to 5159 lb-in	0.89 to 970 lb-in	0.44 to 600 lb-in	5.75 to 970 lb-in
Learn More	BLE2 Series Brushless DC Motors (AC Input)	BMU Series Brushless DC Motors (AC Input)	BX II Series Brushless DC Motors (AC Input)	BLH Series Brushless DC Motors (DC Input)	BLV Series Brushless DC Motors (DC Input)

Features of Brushless DC Motors

Our new brushless DC motor allows for maximum design efficiency with an AC input driver selection. Designed to meet an IP66 rating, inch or metric, stainless steel gear shafts, one motor cable connection and a wide variety of wattages and gear types are offered to meet industrial needs.

Brushless DC Motors offer built-in Hall Effect sensor feedback for speed verification to maintain closed-loop speed regulation. In addition to controlling the motor speed, torque limiting (BLE2) and speed range limit setting, the drivers also offers an alarm function in case any problem occurs during operation.

Same Motor / Select Driver

The new brushless DC motors (BLE2 and BMU) feature the same motor with two driver options based on your application needs.

Select driver

New Design (BLE2 and BMU Series)

IP66 Degree of Protection

Utilizing an industry style compact connector, a direct connection between the motor and driver can be achieved, no secondary connections. Connection is easy with the lock lever that does not require screws.

cable direction

Standardized Stainless Steel Shaft

SUS303 type steel, which provides excellent rust prevention and corrosion resistance. Stainless steel is also used in the parallel keys and installation screws

Stainless Steel Shaft Gear

Gearing Options

Parallel Shaft- GFV Gear / H1 Food-Grade Parallel Shaft*	Parallel Shaft - JV Gear*	Parallel Shaft (Foot Mount)*	Right-Angle Hollow Shaft*

30 W (1/25 HP) 60 W (1/12 HP) 120 W (1/6 HP) 200 W (1/4 HP) 400 W (1/2 HP)	200 W (1/4 HP) 400 W (1/2 HP)	200 W (1/4 HP) 400 W (1/2 HP)	120 W (1/6 HP) 200 W (1/4 HP) 400 W (1/2 HP)
Gear Ratios: 5, 10, 15, 20, 30, 50, 100, 200	Gear Ratios: 300, 450	Gear Ratios: 5, 10, 20, 30, 50, 100, 200, 300, 450, 600, 1200	Gear Ratios: 10, 15, 20, 30, 50, 100, 200
Rated Torque up to 483 lb-in	Rated Torque up to 3800 lb-in	Rated Torque up to 5150 lb-in	Rated Torque up to 1575 lb-in

*Available on the BLE2 and BMU Series

Inverters with Three-Phase Gear Motors

AC gear motors with inverters allow for simple speed control by changing the input frequency or input voltage.

Our KIIS Series has been optimally designed for accurate speed control. For larger motor needs, our Brother ie3 motors offer high efficiency motors with Hypoid / Helical gearheads in parallel or right angle mounting configurations.

For smaller, compact closed loop applications (6 - 90W), Oriental Motor offers a closed loop package (DSC Series). For larger (100-200W up to 3 HP) requirements, our Three-Phase AC motors with a Frenic-Mini C2 Inverter is ideal.

Inverter Specifications
Motor Comparison
Features

Inverter Specifications

Series	Fuji Electric FRENIC-Mini (C2) Inverters
Series	Quick View
Features	Auto-Tuning RS-485 Network Capable Easy Operation & Maintenance Dynamic Torque Vector Control Slip Compensation Torque Boost Energy Efficiency Control
Speed Control Motor	Sold Separately
Compatible Motors by HP (W)	1/8 HP (90 W) 1/4 HP (200 W) 1/2 HP (400 W) 1 HP (750 W) 2 HP (1500 W) 3 HP (2200 W)
Input Voltage	Single-Phase 100~120 VAC Single-Phase 200~220 VAC Three-Phase 200~240 VAC Three-Phase 380~480 VAC
Gear Options	Parallel Shaft (Foot or Flange Mount) Right-Angle Hypoid Solid Shaft Right-Angle Hypoid Hollow Shaft
Analog/Digital Speed Setting	Yes
Parallel Operation	Yes
Electromagnetic Brake Control	Yes
# of Speed Settings	16
Speed & Torque Characteristics
Learn More	Fuji Electric FRENIC-Mini (C2) Inverters

AC Motor Comparison

Product Series	KIIS Series Three-Phase AC Gear Motors	Brother Gearmotors Three-Phase AC Motors	FPW Series Three-Phase IP67 AC Gear Motors
Product Series	Quick View	Quick View	Quick View
Features	High Torque High Speed High Efficiency Speed Stability Designed for Inverters/VFD's	High Torque ie3 Efficiency Efficient Hypoid Gear Electrocoat Paint Stainless Steel Shaft	Watertight Dust-Resistant Oil Shield Protection Anti-Corrosive Epoxy Coating Stainless Steel Shaft
Output Power	100 W (1/8 HP)	400 W (1/2 HP) 1 HP 2 HP 3 HP	90 W (1/8 HP)
Voltage	Three-Phase 200-230 VAC	Three-Phase 208/230/460 VAC	Three-Phase 200/220/230 VAC
Available Options	IP66 Rated Electromagnetic Brake	IP65 Type Electromagnetic Brake	IP67 Rated
Rated Torque	5 to 1,680 lb-in	81 to 11,188 lb-in	12.3 to 260 lb-in
Learn More	KIIS Series Three-Phase AC Gear Motors	Brother Gearmotors Three-Phase AC Motors	FPW Series Three-Phase IP67 AC Gear Motors

Fuji Electric FRENIC-Mini (C2) Inverters / VFD

The new user friendly FRENIC-Mini (C2) inverters elevates the performance of a wide range of equipment.

For use with 1/8 HP up to 3 HP Three-Phase Motors

Single-Phase 115 VAC or 230 VAC input, Three-Phase 230 VAC or Three-Phase 460 VAC input.

Standard functions:

Auto-Tuning / Torque Boost
Flexibly Remote / Local Operation
Dynamic Torque Vector Control
Fastest CPU in its Class
Network Compatibility
Efficiency Setting / Side by Side Mounting

KIIS Series Three-Phase AC Induction Motors

The Three-Phase KIIS Series offers an optimally designed, high efficiency next generation Three-Phase motor that incorporates higher strength gears, both Parallel Shaft type and new Hypoid Right Angles type that maximizes the motor performance. The KIIS Series is available from 100 W (1/8 HP) up to 200 W (1/4 HP) and features either a parallel or hypoid pre-assembled gear head.

High Performance

Characteristics have been improved to create a high-performance motor with little speed reduction even with a large load.

Speed Performance

Fanless Design

KIIS new motor design reduced heat generation. With higher efficiency there is less heat generation in the motor so a cooling fan on the back of the motor is no longer required. With no cooling fan, dust is not blown around.

Fanless motor

Brother Gearmotor AC Induction Motors

These AC gear motors feature superior efficiency from hypoid or helical gears while offering greater torque output thereby allowing for smaller motors and greater energy saving.

The gears in these AC gear motors are high strength, maintenance free and can be mounted in any direction with their slip fit "O" ring design. High reduction ratios, flange mount or foot mount types, right angle or hollow shaft right angle types available.

Premium Efficiency Series ie3

The new ie3 premium efficiency gear motors cost less to operate and demonstrate clear benefits when running for long periods of time (when compared to ie1 standard efficiency gear motors).

Premium Efficiency

High-Efficiency Hypoid / Helical Gearheads

Compared to commonly used worm gears, High efficiency gear motors feature Hypoid / Helical gearing technology that can maintain efficiency above 85% throughout the motor's wide speed range.

High Efficiency Gearheads

FPW Series IP67 Washdown AC Gear Motors

The FPW Series are washdown AC induction gear motors ideal for applications where they are splashed with water. All FPW Series washdown AC gear motors conform to the IEC standard IP67 (Recognized by UL). Each washdown motor and gearhead comes pre-assembled with gear ratios from 3:1 to 180:1.

Designed and Constructed for Watertight and Dust Resistance

Washdown Gear Motor Construction

Improved Anti-Corrosion Properties

High corrosion resistance is achieved through special anti-corrosive coating and re-examination of shaft material [stainless steel (SUS303 type)].

Conforms to Major Safety Standards and Global Power Supply Voltages

The FPW Series washdown gear motor is recognized by UL and CSA and certified under the China Compulsory Certification System (CCC System). CE Marking is used in accordance with Low Voltage Directive. Additionally, our wide range of products include those that meet the power supply voltages of major countries in Asia, North America and Europe.

Speed Control Stepper Motors

CVK-SC Series Speed Control Stepper Motors

The CVK Series SC speed control system offers a simple configuration consisting of a stepper motor, driver and programmable controller. The operating speed, acceleration and deceleration time, running current can be set via the driver switches, and simply turning the FWD (RVS) input to ON or OFF allows for easy control.