Photoelectric proximity sensors represent perhaps the largest variety of problem solving choices in the industrial sensor market. Today’s photoelectric proximity sensor technology has advanced to the point where it is common to find a unit that will detect a target less than 1 mm in diameter while other units have a sensing range up to 60 m. There are many configurations of photoelectric proximity sensors available, including laser-based and fiber optic. Probably the easiest way to describe the operating principal is the emitter transmits a beam of light either visible or infrared, which is directed to and detected by the receiver. Although many housings and designs are available, photoelectric proximity sensors operate on the same principal.
The basic function of a step motor drive is to provide the rated current to the motor windings in the shortest possible time. Voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Step motor drives can be divided into two types, unipolar and bipolar. Unipolar controls can send current through a motor’s windings in only one direction. Unipolar step motor drives tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar units can send current through a motor’s windings in both directions, making bipolar a much more flexible than a unipolar step motor drive.
The basic function of a stepping motor control is to provide the rated current to the motor windings in the shortest possible time. Voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Stepping motor controls can be divided into two types, unipolar and bipolar. Unipolar drives can send current through a motor’s windings in only one direction. Unipolar stepping motor controls tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar units can send current through a motor’s windings in both directions, making bipolar a much more flexible than a unipolar stepping motor control.
Brushless motor controllers are bi-directional and used to control the velocity and / or the speed of a brushless motor. Controlling the speed can be as using the on-board potentiometer or hooking up an external speed control like a potentiometer, PC or PLC. Other features include minimum and maximum speed settings, acceleration and deceleration adjustments, electronic braking, and a 12 pulse per revolution output to monitor the speed. Brushless DC motor controllers can provide up to 10 amps of continuous power. For smaller motors, a jumper is installed for selectable 12 or 24 volt operation. Brushless DC motor controllers are low cost, easy to use solutions for speed and position control.
The basic function of a stepping motor driver is to provide the rated current to the motor windings in the shortest possible time. Voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Stepping motor drivers can be divided into two types, unipolar and bipolar. Unipolar controls can send current through a motor’s windings in only one direction. Unipolar stepping motor drivers tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar units can send current through a motor’s windings in both directions, making bipolar a much more flexible than a unipolar stepping motor driver.
For DC gearmotor customers who have signed up and been approved to place blanket orders our terms are NET 30. We invoice on the day of DC gearmotor shipment. All shipping charges are pre-paid and added to the invoice amount. Our terms and conditions apply to all DC gearmotor orders. If your purchase order lists terms and conditions that are different than the above, we will process the order but do not accept the terms. We are currently set up to ship with our preferred shipping partner, UPS. You have the option of choosing how the package should ship (Ground, UPS Blue 2-Day delivery, or overnight. We do anticipate adding Federal Express as a DC gearmotor shipping option soon.
The basic function of a step motor controller is to provide the rated current to the motor windings in the shortest possible time. Driver voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Step motor controllers can be divided into two types, unipolar and bipolar. Unipolar drivers can send current through a motor’s windings in only one direction. Unipolar step motor controllers tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar drivers can send current through a motor’s windings in both directions, making a bipolar drive much more flexible than a unipolar step motor controller.
The basic function of a step motor driver is to provide the rated current to the motor windings in the shortest possible time. Voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Step motor drivers can be divided into two types, unipolar and bipolar. Unipolar controls can send current through a motor’s windings in only one direction. Unipolar step motor drivers tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar units can send current through a motor’s windings in both directions, making bipolar a much more flexible than a unipolar step motor driver.
The basic function of a stepping motor controller is to provide the rated current to the motor windings in the shortest possible time. Voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Stepping motor controllers can be divided into two types, unipolar and bipolar. Unipolar drives can send current through a motor’s windings in only one direction. Unipolar stepping motor controllers tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar units can send current through a motor’s windings in both directions, making bipolar a much more flexible than a unipolar stepping motor controller.
DC Gearmotors can be integrated into any DC motor design and the selected gear type will play key role in determining characteristics such as backlash, efficiency, maximum torque output, and reduction ratios. DC gearmotors use a gearbox (or gear reducer) to convert the rotary motion of a motor by increasing the torque output and decreasing the rotational speed by a specified ratio. DC gearmotors have two standard gearing systems: spur and planetary gearheads. Spur gearheads are relatively simple and inexpensive and will suit most needs in relatively low-torque applications. Planetary gearheads are generally specified for high-torque applications due to their design featuring multiple rotating gears that increase torque load-carrying capability. Brush and brushless DC gearmotors are available from stock.
Brushless DC motor controllers are bi-directional and used to control the velocity and / or the speed of a brushless DC motor. Controlling the speed can be as using the on-board potentiometer or hooking up an external speed control like a potentiometer, PC or PLC. Other features include minimum and maximum speed settings, acceleration and deceleration adjustments, electronic braking, and a 12 pulse per revolution output to monitor the speed. Brushless DC motor controllers can provide up to 10 amps of continuous power. For smaller motors, a jumper is installed for selectable 12 or 24 volt operation. Brushless DC motor controllers are low cost, easy to use solutions for speed and position control.
Capacitive proximity sensors are capable of detecting both metallic and non-metallic targets such as powders, granulates, liquids and solids. This, along with their ability to sense through non-ferrous materials, makes capacitive proximity sensors an ideal choice for level sensing applications; such as sight glass monitoring and high/low fill level detection of liquid or powder in tanks or hoppers. Many capacitive proximity sensors are tubular in design with common sizes ranging from 12 to 30 mm in diameter with other housing styles available. Housing materials are usually metal and/or plastic (PBT). These are also available in shielded and unshielded mounting versions as well as normally open and normally closed. Capacitive proximity sensors have a limited sensing range, in most cases 3 to 60 mm.
The basic function of a step motor control is to provide the rated current to the motor windings in the shortest possible time. Driver voltage plays a large part in the performance. Higher voltage forces current into the motor windings faster, helping to maintain high speed torque. Step motor controls can be divided into two types, unipolar and bipolar. Unipolar drivers can send current through a motor’s windings in only one direction. Unipolar step motor controls tend to achieve better high-speed performance because energizing only half of the coil reduces the winding’s inductance. Bipolar drivers can send current through a motor’s windings in both directions, making a bipolar drive much more flexible than a unipolar step motor control.
Brushless DC motor controls are bi-directional and used to control the velocity and / or the speed of a brushless DC motor. Controlling the speed can be as simple as using the on-board potentiometer or hooking up an external speed control like a potentiometer, PC or PLC. Other features include minimum and maximum speed settings, acceleration and deceleration adjustments, electronic braking, and a 12 pulse per revolution output to monitor the speed. Brushless DC motor controls provide high power, up to 10 amps of continuous power. For smaller motors, a jumper is installed for selectable 12 or 24 volt operation. Brushless DC motor controls are low cost, easy to use solutions for speed and position control.
An incremental encoder is a sensor of mechanical motion. It translates motion (such as speed, direction, and shaft angle) into electrical signals. Resolutions can be relatively small - less than 50 pulses per revolution - to very high resolution (over 100,000 pulses per revolution). An incremental encoder is used when retention of absolute position upon power loss is not required. Examples include velocity control and simple point-to-point applications. As the code disk rotates in front of the stationary mask, it shutters light from the LED. The light that passes through the mask is received by the photodetector, which produces pulses in the form of a quasi-sine wave. The incremental encoder electronics convert the sine wave into a square signal, ready for transmission to a counter.
Ultrasonic level sensors produce analog outputs that offer actual distance measuring, by offering a 4-20 mA or 0-10 Vdc variable output dependant on range to the target. This output can easily be converted into useable distance information. Often used in continuous level detection, ultrasonic level sensors may even be used when the device cannot be mounted directly over the target material. The sound waves for the ultrasonic level sensor can be bounced off a flat hard surface mounted over the tank on a 45-degree angle. It will bounce off the substance in the tank and then reflect from the 45-degree “reflector” back to the sensor. There are many applications for ultrasonic level sensors.
Inductive proximity sensors are non-contact devices designed to detect the presence or absence of a ferrous material, with the ideal target being mild steel at least 1 mm thick and the same diameter as the sensing face. Due to the limitations of magnetic fields, inductive proximity sensors have a comparatively short sensing range, from fractions of millimeters to 60 millimeters on average, although longer-range specialty products are available. Inductive proximity sensors are available for either shielded or unshielded mounting (flush or non-flush). With special designs and IP ratings as high as 67 and higher, they are capable of withstanding the buildup of contaminants such as cutting fluids grease and non-metallic dust, both in the air and on the inductive proximity sensor itself.
Pittman motor offers a complete line of Pittman® and MAE® brand brush, brushless, gear and stepper motors which can be engineered to meet your exact requirements. Many Pittman motors – brush, brushless, stepper, and gearmotors - are available from stock. Whether it's smooth, quiet operation, long life, high torque or rapid acceleration, the Pittman motor brush-commutated line, ELCOM SL®, or ELCOM ST® brushless motors and gearmotors will bring optimum performance to your application. In addition, hybrid steppers are designed to meet a wide range of performance characteristics. Motors with and without feedback, spur or planetary gearboxes, on-board electronics, standard or custom windings – we have the right Pittman motor for your application.
The addition of fiber optic sensors considerably extends application solutions for photoelectric sensors, allowing their installation in confined areas, as well as in areas in which intrinsic safety would normally disallow the use of electronics. Glass fiber optic sensors are made of the finest high quality 70 micron glass fibers which are bundled in PVC, PUR or metal sheaths, as well as in chrome-nickel tubes. The front surfaces of the fibers, which are set and glued into the sensing head, are precisely ground and polished to provide outstanding optics. Plastic fiber optics are less expensive than glass and can be cut to the desired length by the user. Even difficult multiple sensing problems can be solved by using fiber optic sensors.
The servo amplifier is the link between the controller and motor. Their job is to translate the low energy reference signals from the controller into high energy power signals to the motor. Servo amplifiers are available to control the speed and position of both brush and brushless motors. Today these units can be expected to handle all of the system feedback including encoders, resolvers and tachometers, as well as limit switches and other sensors. Servo amplifiers are also being asked to close the torque loop, velocity loop and position loop and being given the responsibility of path generation. By taking on mServo amplifiers are taking on many of the more complex control functions that used to be the sole domain of the controller.
Capacitive sensors are capable of detecting both metallic and non-metallic targets such as powders, granulates, liquids and solids. This, along with their ability to sense through non-ferrous materials, makes capacitive sensors an ideal choice for level sensing applications; such as sight glass monitoring and high/low fill level detection of liquid or powder in tanks or hoppers. Many capacitive sensors are tubular in design with common sizes ranging from 12 to 30 mm in diameter with other housing styles available. Housing materials are usually metal and/or plastic (PBT). These are also available in shielded and unshielded mounting versions as well as normally open and normally closed. Capacitive sensors have a limited sensing range, in most cases 3 to 60 mm.
Step motors have several advantages over other types of motors. One of the most impressive is their ability to position very accurately. Standard step motors have an accuracy of +/-5%. The error does not accumulate from step to step. This means that a standard unit can take a single step and travel 1.8° +/-0.09°. Then it can take one million steps and travel 1,800,000° +/-0.09°. This characteristic gives it almost perfect repeatability. Repeatability is the ability to return to a previously held position. It can achieve the same target position, revolution after revolution. A step motor will rotate a distance and at a rate that is proportional to the number and frequency of its pulse commands.
Stepping motors have several advantages over other types of motors. One of the most impressive is their ability to position very accurately. Standard stepping motors have an accuracy of +/-5%. The error does not accumulate from step to step. This means that a standard unit can take a single step and travel 1.8° +/-0.09°. Then it can take one million steps and travel 1,800,000° +/-0.09°. This characteristic gives it almost perfect repeatability. Repeatability is the ability to return to a previously held position. It can achieve the same target position, revolution after revolution. A stepping motor will rotate a distance and at a rate that is proportional to the number and frequency of its pulse commands.
The servo control system is the "brains". The servo control system can be something as simple as an ON/OFF switch or a dial controlled by an operator and as sophisticated as a multi-axis controller that actively servos several drives and monitors I/O while maintaining all of the programming for the machine. Typically, the servo control system sends a signal to the drive; the drive provides power to the motor; and the feedback from the motor is sent back to the controller, which analyzes the feedback signal and sends a new signal to the amplifier to correct for errors. The servo control system is considered to be the intelligent part of the system.
The servo motor control is the "brains" of the system. The servo motor control can be something as simple as an ON/OFF switch or a dial controlled by an operator and as sophisticated as a multi-axis controller that actively updates several drives and monitors I/O while maintaining all of the programming for the machine. Typically, the servo motor control sends a signal to the drive; the drive provides power to the motor; and the feedback from the motor is sent back to the controller, which analyzes the feedback signal and sends a new signal to the amplifier to correct for errors. The servo motor control is considered to be the intelligent part of the system.
The servo controller is the "brains" of the system. The servo controller can be something as simple as an ON/OFF switch or a dial controlled by an operator and as sophisticated as a multi-axis controller that actively servos several drives and monitors I/O while maintaining all of the programming for the machine. Typically, the servo controller sends a signal to the drive; the drive provides power to the motor; and the feedback from the motor is sent back to the controller, which analyzes the feedback signal and sends a new signal to the amplifier to correct for errors. The servo controller is considered to be the intelligent part of the system.
A brushless servo motor requires no point of electrical or mechanical contact between the source voltage and the rotating component of the motor. Because brushless servo motors have no point of electromechanical contact they are virtually maintenance free, and motor life is limited only by the life of the rotor bearings. Additionally, because there is very low or no electromagnetic interference (EMI) or radio frequency interference (RFI), brushless servo motors can be utilized in sensitive or explosive environments. Most are available with or without feedback devices. With sizes ranging from less than 1” diameter to over 4” diameter and speeds as high as 25,000 rpm, brushless servo motors are a good selection in many demanding, high speed applications.
When looking for a DC servo motor, we took a common sense approach to buying automation products - from getting pricing, delivery, and specifications to matching compatible products (DC servo motor or drive) and making it easy to find them. We offer thousands of quality automation products designed and built by some of the best manufacturers in the industry. We do everything online. No more wasted time waiting for DC servo motor information before you can make your decision. We have everything you need instantly available online, from pricing and delivery to spec sheets and DC servo motor owners manuals.
Proximity sensors simply detect the presence or absence of objects using electromagnetic fields, light or sound. The major technologies for proximity sensors are inductive, capacitive, photoelectric and ultrasonic. Each has unique operating principles and capabilities while each are particularly suited to certain applications and environments. Inductive devices are non-contact units designed to detect the presence or absence of a ferrous material. Capacitive devices are capable of detecting both metallic and non-metallic targets such as powders, granulates, liquids and solids. Photoelectric devices offer the largest variety of problem solving choices in the proximity sensor market. Ultrasonic devices use sound waves to detect the presence or absence of objects and are thereby not affected by color or transparency. Proximity sensors are used in today’s automated workplace.
Brushless slotless motors consist of a basket winding inserted into a ring lamination containing no teeth or slots. Because of the design, brushless slotless motors yield very smooth rotation, virtually eliminating cogging from the motor. They are also electrically more efficient than slotted motors designs, and less voltage is required to achieve the same amount of power. Other advantages of brushless slotless motors include lower resistance, electrically more efficient than “slotted” motors; lower magnetic losses thus lower heat, and lighter weight. Units that are autoclavable are also available. Ranging from less than 1” in diameter to 4” diameter, brushless slotless motors are well suited for slow speed, low cogging applications to extremely high speed (over 40,000 rpm) applications.
Brushless AC servo motors provide applications with low inertia to attain the highest acceleration possible - which will allow you to position faster. This is why brushless AC servo motors are used in the world's fastest machines and demanding applications. Continuous stall torque capability ranging from 2.0 Lb-In (0.35 N-m) to over 350 Lb-In (40 N-m). Peak torque capability is typically 3 to 4 times continuous torque. Brushless AC servo motors have the lowest inertia to provide the maximum torque per package size. Applications include moving webs, machine tools, packaging, factory automation, material handling, printing converting, food packaging, assembly lines, and many other demanding applications. The more demanding applications are ideal for brushless AC servo motors.
A brushless DC motors require no point of electrical or mechanical contact between the source voltage and the rotating component of the motor. Because there is no point of electromechanical contact in brushless DC motors they are virtually maintenance free, and motor life is limited only by the life of the rotor bearings. Additionally, because there is very low or no electromagnetic interference (EMI) or radio frequency interference (RFI), brushless DC motors can be utilized in sensitive or explosive environments. With sizes ranging from less than 1” diameter to over 4” diameter and speeds as high as 25,000 rpm, brushless DC motors are a good selection in many high speed, very demanding applications.e.
Photoelectric sensors represent perhaps the largest variety of problem solving choices in the industrial sensor market. Today’s photoelectric sensor technology has advanced to the point where it is common to find a unit that will detect a target less than 1 mm in diameter while other units have a sensing range up to 60 m. There are many configurations of photoelectric sensors available, including laser-based and fiber optic. Probably the easiest way to describe the operating principal is the emitter transmits a beam of light either visible or infrared, which is directed to and detected by the receiver. Although many housings and designs are available, photoelectric sensors operate on the same principal.
A brushless motor requires no point of electrical or mechanical contact between the source voltage and the rotating component of the motor. Because brushless motors have no point of electromechanical contact they are virtually maintenance free, and motor life is limited only by the life of the rotor bearings. Additionally, because there is very low or no electromagnetic interference (EMI) or radio frequency interference (RFI), brushless motors can be utilized in sensitive or explosive environments. Most are available with or without feedback devices. With sizes ranging from less than 1” diameter to over 4” diameter and speeds as high as 25,000 rpm, brushless motors are a good selection in many demanding, high speed applications.
Ultrasonic sensors employ a special sonic transducer, which allows for alternate transmission and reception of sound waves. The transducer emits a series of sonic pulses and then “listens” for their return as they are reflected from the target. Once the reflected signal is received, the ultrasonic sensor signals an output to a control device such as a PLC. Ultrasonic sensors are capable of reliably detecting targets such as solids, liquids, granules or powders irrespective of color and opacity at sensing ranges up to 2.5 meters. While standard diffuse units will give simple presence/absence of target information, some units can produce analog outputs that offer actual distance measuring. This ultrasonic senor output can easily be converted into useable distance information for continuous level detection.
The servo motor converts the current and voltage that comes from the drive into mechanical motion. Most are rotary types but linear units are also available. There are many types of servo motors that can be used in servo applications, including brush, brushless, slotless, gear, rotary, and linear. Continuous torques ranging from just a few oz-in of torque to over 350 Lb-In (40 N-m). Sizes ranging from 0.375” to over 4” diameters. Applications include medical, semiconductor, moving webs, machine tools, packaging, factory automation, material handling, printing converting, food packaging, assembly lines, and many other demanding applications. The more demanding applications are ideal for brushless while more cost sensitive applications are ideal for brush servo motors.
