Speed Sensors

Speed Sensors

Sense Motor Shaft Speed and Direction for Closed-Loop Motion Control

 

OVERVIEW

CONTREX speed sensors can be used to sense the speed or speed and direction of a rotating motor shaft for closed-loop motion control applications.  Sensors are available in several different models including 2X Hall Effect, Quadrature, and Magnetic Pickup.  Though capable of working in nearly any installation, our speed sensors are specifically designed for easy drop-in installation with CONTREX Ring Kits. 

 

 

ALL SPEED SENSORS ARE AVAILABLE WITH RING KITS!

 

 

QUADRATURE ENCODER

 

For positioning or bi-directional applications, the advanced Quadrature Sensor II gives you both motor shaft speed and direction.  The Quadrature Sensor II provides two pulse-trains which are 90 degrees out of phase from each other.  This phase difference provides direction information to a CONTREX controller.  The Quadrature Sensor II technology is more rugged, reliable, and easier to mount than typical optical encoders.

 

  • Sense speed and direction of ferrous geartooth targets (see Ring Kits)

  • Wide operating temperature rating -40 to +125 degree Celsius

  • Zero speed to 10,000 RPM shaft speed capability (100 kHz max frequency)

  • Automatic gain adjustment to handle variable gaps when installed without Ring Kit

 

Part No.
Description
Supply Voltage
Output Type

7200-0990

Quadrature Sensor 

+5 to +24VDC

Open collector w/internal pull-up resistor

7200-0991

Quadrature Sensor

+5 to +24VDC

Open collector without pull-up resistor

7200-0992

Quadrature Sensor

+5 to +24VDC

Differential (complementary open collector)

 

 Open Collector Quadrature Sensor Install Guide (205KB PDF)

 Differential Quadrature Sensor Install Guide (142KB PDF)

 

 

2X HALL EFFECT

 

For near zero speed applications, the 2X Hall Effect Sensor improves your ability to sense motor shaft speed at very low speeds.  Unlike a magnetic pickup, the 2X Hall Effect Sensor is capable of sensing true zero speed while being tolerant of wider gaps.  Additionally, the 2X Hall Effect Sensor improves the sensing resolution by 2 times, thus producing a 120 pulse-per-revolution signal when sensing a 60 tooth gear.  This additional resolution improves motor speed control a low speeds.  

 

  • Sense speed of ferrous geartooth targets (see Ring Kits)

  • 2 times the resolution of the geartooth target for better low speed control

  • Zero speed to 10,000 RPM shaft speed capability (100 kHz max frequency)

  • Automatic gain adjustment to handle variable gaps when installed without Ring Kit

 

Part No.
Description
Supply Voltage
Output Type

7200-0993

2X Hall Effect Sensor

+5 to +24VDC

Open collector w/internal pull-up resistor

7200-0994

2X Hall Effect Sensor

+5 to +24VDC

Open collector without pull-up resistor

 

MAGNETIC PICKUP

 

CONTREX Magnetic Pickup sensors offer cost effective, proven reliability for many motor speed control applications.  With no integrated circuitry, these variable-reluctance sensor can withstand very high temperature environments.  They are available in multiple housing types depending on your application needs.

 

  • Sense speed of ferrous geartooth targets (see Ring Kits)

  • Cost effective, proven reliability

  • Smooth, threaded, or explosion proof housings

 

Part No.
Description
Housing Type
Note

5800-1410

SM3N Magnetic Pickup

Steel, Cylindrical, Threaded

No Ring Kit available for threaded housing

5800-1412

SM3N-A Magnetic Pickup

Steel Cylindrical, Smooth

Gap adjustment required with or without Ring Kit

6500-0038

SM5XP Magnetic Pickup

Explosion Proof

Requires Ring Kit with R56CXP flange and 30 tooth gear

TBD

Magnetic Pickup

Blue Zytel Nylon

No gap adjustment required with Ring Kit

 

DISCONTINUED SENSORS

 

These sensors have been discontinued and are no longer manufactured. 

Limited inventory and replacement models do exist for most models. 

We recommend calling our factory at 763.424.7800 to obtain a current model replacement or enquire about limited stock.

 

Part No.
Description
Supply Voltage
Output Type

7200-0940

Quadrature Sensor

+5 to +15VDC

Open collector w/internal pull-up resistor

7200-0941

Quadrature Sensor

+5 to +15VDC

Open collector without pull-up resistor

7200-0942

Hall Effect Sensor

+5 to +15VDC

Open collector w/internal pull-up resistor

7200-0943
Quadrature Sensor+5 to +15VDCDifferential Line Driver
7200-0945
Hall Effect Sensor
+5 to +15VDCOpen collector without pull-up resistor

7200-0946

Hall Effect Sensor+5 to +15VDCDifferential Line Driver
7200-0970
Quadrature Sensor+15 to +24VDCOpen collector w/internal pull-up resistor
7200-0971
Quadrature Sensor+15 to +24VDCOpen collector without pull-up resistor
7200-0972Hall Effect Sensor+15 to +24VDCOpen collector w/internal pull-up resistor
7200-0973
Hall Effect Sensor+15 to +24VDCOpen collector without pull-up resistor