Application Tips Archives - Bodine - Gearmotor Blog

Video: How to Connect a PMDC Gearmotor to a Filtered PWM DC Speed Control

Edmund Glueck — Thu, 09 Nov 2023 23:51:18 +0000

In this new How-To video, we are demonstrating how to connect a 130VDC, two-wire PMDC gearmotor to a Bodine WPM PMDC motor speed control powered from a 115VAC/60Hz/1-phase line. In this example, we used a Bodine stock model 6071, type 33A-HG/H, 130VDC hollow shaft gearmotor, powered by a 0-130VDC (out), type WPM Speed control item number 0794, with User Manual LIT# 07401107. This control can run our 90VDC or 130VDC PMDC gearmotors and motors.

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What Does IP-69K Mean for Stainless Steel Gearmotors?

Edmund Glueck — Thu, 19 Oct 2023 21:52:55 +0000

Gearmotors rated for IP-69K are typically designed to operate in wet, dusty, washdown environments, or where equipment is subject to particularly intensive high-pressure cleaning such as in food or pharmaceutical manufacturing facilities. This new Tech Note explains what IP-69K means for your geared motor application, as well as how to mount and wire one of these stainless steel, AC inverter-duty gearmotors or motors.

Click here for the full article.

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How To Connect a Reversing Switch to a 3- or 4-Wire (PSC) Gearmotor

Sarah Prais — Tue, 31 Jan 2023 21:30:00 +0000

Below information is from our latest Application Note on how to connect and reverse our fixed-speed, 3-wire and 4-wire reversible, AC single-phase gearmotors and motors. We conclude our series of AC application notes with four examples of what types of reversing switches an engineer or technician can use to reverse our stock gearmotors.

How to Wire an Optional Reversing Switch to a 3- or 4-wire AC (PSC) Motor or Gearmotor (115VAC/60Hz Models)

These connection diagrams show how to wire an optional switch to reverse the direction of a 3- or 4-wire Bodine permanent split capacitor (PSC) motor/gearmotor. All the wiring diagrams use variations of a double throw switch, with a center-off position. The purpose of the center-off position is to bring the gearmotor to a complete stop before reversing its direction of rotation. This is necessary to prevent gearing damage. Table 1 (below) shows examples of switch manufacturers, part numbers and specifications recommended for use with Bodine products.

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To watch our How-To video on how to add a manual reversing switch to a Bodine 3-wire reversible PSC gearmotor or motor, click here. Our video for 4-wire reversible PSC motors is linked below.

3- Wire-Reversible Bodine AC Motor or Gearmotor

Examples 1 & 2 show how to connect a single- or double-pole switch to our 3-wire, PSC, fixed-speed AC gearmotors or motors.

Example 1- How to connect a single pole, double throw switch

Example 2- How to connect a double pole, double throw switch

4-Wire-Reversible Bodine AC Motor or Gearmotor

Examples 3 & 4 show how to connect a three- or four-pole switch to our 4-wire, PSC, fixed-speed AC gearmotors or motors.

Example 3- How to connect a three pole, double throw switch

Example 4- How to connect the four pole, double throw switch

Table 1: Switch Specification Examples
Figure	Switch Type	Manufacturer and Part Number	Amps	Operation	Terminals
Bodine 3-wire Gearmotor/Motor
1	Single Pole, Double Throw	Carling Technologies, 2FC53-73-TABS	15A @125VAC	On-Off-On	Quick Connect
2	Double Pole, Double Throw	Carling Technologies, 2GM51-73	15A @125VAC	On-Off-On	Quick Connect
Bodine 4-wire Gearmotor/Motor
3	Three Pole, Double Throw	Carling Technologies, HM251-73	15A @125VAC	On- Off-On	Quick Connect
4	Four Pole, Double Throw	Carling Technologies, IM251-73	15A @125VAC	On- Off-On	Quick Connect

Connection diagrams are available from our web site.

How-To Connect a Three-Pole, Double-Throw toggle switch to Reverse a 4-Wire Reversible 115VAC, PSC gearmotor or motor.

Several jumper wires are required to connect a reversing switch to one of our 4-wire-reversible, permanent split capacitor (PSC) gearmotors or motors. For our demo, we are using a Three-Pole, Double-Throw toggle switch with Center-Off position. (Carling brand switch with quick-connect tabs, rated for 15 Amps; Carling part number HM215-73 — purchased from DigiKey).

To watch our How-To Video for adding a reversing switch to a 4-wire, PSC gearmotor, click here.

Connect the incoming power line (hot lead) and one side of a jumper lead and connect it to switch terminal 5, then connect the other end of jumper #1 with the switch terminal number 6, see diagram.

Connect the black motor lead with one side of a jumper lead and land on switch terminal 1, connect the other side of jumper #2 with switch terminal 8, see diagram.

Connect the black/yellow tracer motor lead with one side of jumper #3 lead, and connect it to switch terminal 2, then connect the other side of jumper#3 to switch terminal 7.

For the last jumper, connect the blue/yellow tracer lead with one side of our jumper #4 lead, and then connect it to terminal 3 of the switch, then connect the other side of jumper #4 to terminal 9 of the reversing switch.

The blue motor lead is wired to one side of the capacitor (non-polarized) and the other side of the capacitor is crimped together with the neutral line, and then connected to switch terminal number 4.

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Bodine Launches Competitor Cross-Reference Tool for Baldor, Bison, or Leeson Gearmotor Replacements

Sarah Prais — Wed, 05 Oct 2022 20:46:22 +0000

If you are looking to cross a Baldor, Bison, or Leeson gearmotor you can now do so on our customer Support web page.

Each competitor part number is constructed differently:

For example, if you are crossing a Baldor item, the part number will look something like this GCP24004, please do not add any additional spaces, dashes, or any type of alphanumeric characters to the search box as this will not bring up the correct information.

Bison part number, e.g. 011-190-0271, please enter the P/N with dashes just like this and the results will appear for you.

Leeson part number, e.g. M1145039.00, please enter it like this, do not include any spaces, dashes, or additional alphanumeric information.

When you perform a cross-reference search for a Baldor, Bison or Leeson stock product, here are the possible search results: (a) Bodine drop-in, (b) we offer an “almost” drop in, with differences explained; (c) no drop in, no Bodine alternative, call our CS team, (d) no search result, not in our database, please call us.

If we do not offer a “drop-in”, but the item is in our competitor database, then we explain the differences so you can compare the specs with our closest stock model. If no cross-reference is available, please reach out to us directly and call us at: 773-478-3515 (USA) and ask for an application engineer, or send your email request to: info@bodine-electric.com.

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How to Connect a Run Capacitor to a AC 4-Wire-Reversible PSC Gearmotor or Motor

Edmund Glueck — Wed, 24 Aug 2022 19:26:28 +0000

In this How-To video, we show you how to wire and connect one of our AC single-phase, 4-wire-reversible, permanent split capacitor (fixed speed) gearmotors with its run capacitor and a power cord. PSC gearmotors or motors require a run capacitor to be connected to the winding at all times. To enclose the capacitor or to make the AC power cord connections, an optional terminal box kit is a convenient add-on solution. Adding a terminal box also upgrades the Ingress Protection rating of these AC gearmotors from IP-20 to IP-44.

For more application notes and wiring info, visit: https://www.bodine-electric.com/application-notes

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Typical Operating Conditions for AC Gearmotors and Motors

Sarah Prais — Tue, 14 Jun 2022 15:22:43 +0000

Read our latest Tech Note on Typical Operating Conditions for AC Gearmotors and Motors!

With this new Tech Note from our engineering team, you’ll learn how operating a gearmotor or motor above or below the ratings shown on its product nameplate can affect performance. For standard gearmotors, the torque rating shown on the product nameplate (or in the manufacturer’s sales literature) represents a complete gearmotor rating and reflects the capacity of the limiting gearmotor design elements. Some of the design limitations considered are: motor input power, strength or wear rating of the gearing. Click here for the full article.

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New Video: How to Connect a Reversing Switch to a 3-Wire-Reversible PSC Gearmotor

Sarah Prais — Thu, 03 Feb 2022 23:12:50 +0000

In this How-To video, we explain how to install and wire a reversing switch for one of our stock, AC single-phase, permanent split capacitor (PSC), 3-wire-reversible gearmotors or motors. For this demonstration, we are using our large die cast terminal box, model 0986, a stock capacitor, and a Single-Pole, Double-Throw, Carling brand toggle switch, with quick-connect tabs, rated for 15 Amps; part number 2FC53-73-TABS (purchased from DigiKey). See also our motor connection diagram for this 34R-WX gearmotor, Bodine literature number 07410072. To watch this video, click here.

Or visit: https://youtu.be/NZTpbi_M2io

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Introduction to Motor Constants for Fractional Horsepower Gearmotors

Edmund Glueck — Tue, 02 Nov 2021 15:00:00 +0000

Motor constants are needed to calculate permanent magnet DC (PMDC) or brushless DC (BLDC or EC) motor specifications and ratings, or to match the motor properly to an amplifier. The motor constants are required in order to predict the PMDC or BLDC motor’s performance with changing variables, such as different input voltages or different loads. (See below PDF link for Bodine stock PMDC and BLDC motor constants.) This application note explains what the constants are, how they are derived and how to use them.

Intro to Motor Constants for BLDC and PMDC Gearmotors and Motors

Common Motor Constants:

The most commonly used motor constants are Torque Constant (Kt), Voltage Constant (Ke), Electrical Time Constant (Te), Mechanical Time Constant (Tm), and Thermal Resistance (Rth). Typical values for these constants are derived by using measured values of No Load Speed, No Load Current, Stall Torque, Circuit Resistance, Circuit Inductance, and Armature Inertia with the following equations:

Torque Constant (Kt) — describes the proportional relationship between torque and current. Kt is usually expressed in the units Oz-in./Amp. See page 2 for additional information about torque constants.

Voltage Constant, or Back EMF Constant (Ke) — is the Torque Constant expressed in different units, usually Volts/Krpm, in order to describe the proportional relationship between motor speed and generated output voltage when the motor is back driven as a generator in units of Volts/1000 rpm. See page 2 for additional information about voltage constants.

Electrical Time Constant (Te) — is the time required for a motor to reach 63.2% of its stall current after applying a test voltage with the motor shaft locked. It is usually expressed in milliseconds. Applied Voltage equals Rated Current multiplied by Circuit Resistance:

Mechanical Time Constant (Tm) — is the time required for an unloaded motor to reach 63.2% of its no load speed after applying its rated voltage. It is usually expressed in milliseconds.

Thermal Resistance (Rth) — is useful for predicting the ultimate temperature rise under different loading conditions in order to determine a maximum continuous torque rating. It is usually expressed in the units °C/Watt.

Using Performance Data to Calculate Kt and Ke

This speed/torque graph demonstrates how the linear equation of the current is used to calculate the Torque Constant (Kt) by using the slope “m.” The Voltage Constant (Ke) can then be calculated.

Using Performance Data to Calculate Kt and Ke

This speed/torque graph demonstrates how the linear equation of the current is used to calculate the Torque Constant (Kt) by using the slope “m.” The Voltage Constant (Ke) can then be calculated.

To download this information as a PDF, click here.
To download the Motor Constants for Standard Bodine Gearmotors, click here.
To download Chapter 8, or any other section of the Bodine Small Motors Handbook, click here.

Bonus Tech Tip: Another handy use for motor constants is when performing load measurements. If you are designing a machine and want to use an AC gearmotor, but you don’t know what size gearmotor you need. AC motors don’t have torque constants, but DC motors do. You might install a DC gearmotor into your prototype machine and use it as a “torque transducer”. By measuring the current draw, you can estimate what torque is needed when you start shopping for the AC gearmotor on Bodine Electric Company’s website

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Custom Gearmotors Solve AGV / AMR Challenge

Sarah Prais — Wed, 27 Oct 2021 09:30:00 +0000

Large distribution warehouses operated by wholesalers, retailers, or large manufacturers have turned to Automated Guided Vehicles (AGVs) or Autonomous Mobile Robots (AMRs) to keep up with ever-increasing demand for faster and more economical deliveries. A major original equipment manufacturer (OEM) for AGVs contacted Bodine Electric Company to help develop two new custom gearmotors for their latest AGV. Bodine has since built, tested and shipped over 50,000 gearmotors to this customer.

The Challenge

The OEM’s specifications required two gearmotors, one of them had to lift up to 1,000 lbs (with substantial peak loads). The AGV’s chassis had already been finalized, and left only limited space for the new gearmotors. The gearmotors were required to operate almost continuously for five years, under worst-case environmental conditions, and would be subjected to extreme vibration and shock.

The Result

Almost every part of these new gearmotors was engineered to match the customer’s extensive list of requirements.

Low-voltage brushless DC motors paired with all-new, highly efficient gearboxes prolong the AGV battery life and minimize downtime
Gearbox designed to simplify the assembly process of the AGV
Custom output shaft assembly designed for extremely heavy loads
Feedback device tracked the position of the drive shaft
1024 PPR encoder provided servo feedback to control the gearmotors
“Military Style” plug and screw connections
Temperature sensors monitor gearmotor performance and to prevent overloads
Manual over-ride in the event of a power failure

With Bodine’s help, these sophisticated robotic vehicles have been performing flawlessly all over the world. Bodine not only developed two entirely new gearmotors for the application, they also helped navigate the difficult third-party approval process. Bodine engineers extensive experience in motion control made them an ideal partner in the development of this new product, which in turn is making warehouse jobs easier, more productive, and cost-efficient.

Bodine Electric engineers bring over 115 years of application engineering and problem solving experience to a wide range of applications in industries as diverse as medical, packaging, industrial automation, and solar powered outdoors equipment. We look forward to working with you on your next FHP gearmotor design challenge.

To download this article as a PDF, click here

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Gearmotors for Commercial Food Equipment

Edmund Glueck — Wed, 14 Jul 2021 22:00:00 +0000

Bodine Electric is a proud supplier to many OEMs in the food equipment industry. Our engineers have designed gearmotor solutions for applications in pizza conveyor ovens, pita bread production, mixers, pumps, and beverage dispensers. Some of our newer gearmotors are rated IP-66 and can withstand moisture, grime and water jets. For more info, please visit:

https://www.bodine-electric.com/industries/food-equipment

#fractionalHorsepower #gearmotor #FoodEquipment #FoodProcess #cookingEquipment #conveyorOven #pizzaOvens #foodMixers #mixers #capping #baggers #AC #inverterDuty #variableSpeed #BLDC #PMDC #gearmotors

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