AXEON Marathon Motor User Manual

Installation, Operation and

Maintenance Instructions

for AC Induction Motors 56- 6800 Frames (NEMA) 63 – 280 Frames (IEC)

MARATHON ELECTRIC

Contact Motor Customer Service at:

Phone:

www.marathonelectric.com

(715) 675-3311

Form 5554E

INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE OWNER: READ AND SAVE THESE INSTRUCTIONS

SAFETY INSTRUCTIONS

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

WARNING Before installing, using, or servicing this product, carefully read and fully understand the instructions including all warnings, cautions, & safety notice statements. To reduce risk of personal injury, death and/or property damage, follow all instructions for proper motor installation, operation and maintenance.

These instructions are not intended as a complete listing of all details for installation, operation, and maintenance. If you have any questions concerning any of the procedures, STOP, and call the appropriate Regal-Beloit motor

Table of Contents

1.0 INSTALLER / OWNER / OPERATOR RESPONSIBILITY

2.0 RECEIVING & INSPECTION

3.0 INSTALLATION AND OPERATION

company.

1.1 Electrical Safety

1.2 Mechanical Safety

1.3 Environmental Safety

2.1 Initial Inspection

2.1.1 Packing List & Inspect

2.1.2 Turn Motor Shaft

2.1.3 Check Nameplate

2.2 Handling

2.2.1 Correct Lifting Angles

2.3 Storage

2.3.1 Bearing Lubrication

2.3.2 Shaft Rotation

2.3.3 Damp or Humid Storage Locations

3.1 Location

3.1.1 Selecting a Location

3.1.2 Ambient Temperature Limits

3.1.3 Construction Selection per Location

3.1.3.1 Dripproof

3.1.3.2 Totally Enclosed

3.1.3.3 Hazardous Locations Motors

3.2 Mounting Motor

3.2.1 Rigid Base (Footed)

3.2.2 Rigid Base Hole Selection -6 or 8 Hole Bases

3.2.3 Vertical

3.3 Application Assembly to Motor

3.3.1 General: Proper Alignment

3.3.2 Direct Coupling

3.3.3 Direct Connected

3.3.4 Belted

3.3.5 VFD Operation

3.3.6 Accessories

3.3.6.1 General

3.3.6.2 Brake Motors

3.3.6.3 Space Heaters

3.3.6.4 Thermal Protection General, Thermostats,

Thermisters & RTDs

3.3.6.5 RTD Alarm & Trip Settings

3.3.7 Guards

3.4 Electrical Connections

3.4.1 Power Supply / Branch Circuit

3.4.1.1 Branch Circuit Supply

3.4.1.2 Fuses, Breakers, Overload Relays

3.4.1.3 AC Power Supply Limits

3.4.2 Terminal Box

3.4.2.1 Conduit opening

3.4.2.2 Hazardous Locations

3.4.3 Lead Connections

3.4.3.1 Wire Size Requirements (Single Phase)

3.4.3.2 Extension Cords (Single Phase)

3.4.4 Ground Connections

3.4.5 Start Up

3.4.5.1 Start Up – No Load Procedure

3.4.5.2 Start Up – Load Connected Procedure

3.4.5.3 Jogging and/or repeated starts

4.0 MAINTENANCE

4.1 General Inspection

4.1.1 Ventilation

_________________________________________________________________________________________________________________________

4.1.2 Insulation

4.1.3 Electrical Connections

4.2 Lubrication and Bearings

4.2.1 Grease Type

4.2.2 Bearing Operating Temperature

4.2.3 Lubrication Interval

4.2.4 Lubrication Procedure

4.2.5 Lubrication Example

4.3 Trouble Shooting

4.3.1 General Trouble-Shooting Warnings

4.3.2 Trouble-Shooting Cause / Corrective Action

1.0

INSTALLER/OWNER/OPERATOR

1.1

ELECTRICAL SAFETY

WARNING:

Electrical connections shall be made by a qualified electrical personnel in accordance with all applicable codes, ordinances and sound practices. Failure to follow these instructions could result in serious personal injury, death and/or property damage. Only qualified personnel who are familiar with the applicable National Code (USA = NEC) and local codes should install or repair electrical motors and their accessories.

WARNING:

Do not touch electrically live parts. Disconnect, lockout and tag input power supply before installing or servicing motor (includes accessory devices). Use a voltmeter to verify that power is off before contacting conductors.

WARNING:

Failure to properly ground motors, per the National Electrical Code (NEC) Article 430 and local codes may cause serious injury or death to personnel. For general information on grounding refer to NEC Article

250. (Also see “Ground Connections section 3.4.4“).

WARNING:

Do not use automatic reset protectors if automatically restarting the motor will place personnel or equipment at risk. . Failure to follow this instruction could result in serious personal injury, death and/or property damage

WARNING:

If a tripped manual reset thermal protector is exposed to a temperature less than –7°C (20°F) it may reset and restart the motor automatically. If an application requires a motor with a manual reset thermal protector that will be operated at temperatures less than –7°C (20°F) contact the manufacturer to review the application / motor requirements. Failure to follow this instruction could result in serious personal injury, death and/or property damage

ELECTRICAL SHOCK HAZARD

ELECTRICAL LIVE CIRCUIT HAZARD

ELECTRICAL GROUNDING HAZARD

AUTOMATIC RESET PROTECTOR HAZARD

MANUAL RESET PROTECTOR HAZARD

RESPONSIBILITY

1.2

MECHANICAL SAFETY

WARNING:

Before starting the motor, remove all unused shaft keys and loose rotating parts to prevent them from flying off. Failure to follow these instructions could result in serious personal injury, death and/or property damage.

WARNING:

Keep extremities, hair, jewelry and clothing away from moving parts. Failure to follow these instructions could result in serious personal injury, death and/or property damage.

1.3

ENVIRONMENTAL SAFETY

WARNING:

(1) The NEC and the local authority having jurisdiction must be consulted

concerning the installation and suitability of motors for use in Hazardous Locations. The local authority having jurisdiction must make the final determination of what type of motor is required. The application and operation is beyond the control of the motor manufacturer.

(2) Division 1 Hazardous Locations motors can only be modified or

reworked by the manufacturer or a facility that is Listed under UL’s category “Motors and Generators, Rebuilt for use in Hazardous Locations”. Failure to follow these instructions could result in serious personal injury, death and/or property damage.

(3) Do not use a Hazardous Locations motor with a Variable Frequency

Drive (VFD) unless the motor nameplate specifically states that the

LOOSE PARTS HAZARD

ROTATING PARTS HAZARD

HAZARDOUS LOCATIONS

motor is suitable for use on Pulse Width Modulated (PWM) type VFD power. In addition, the nameplate must be marked with the inverter rating; for example, “2:1 CT”, “2 to 1 Constant Torque”, etc.

2.0 RECEIVING AND INSPECTION

2.1

INITIAL INSPECTIONS

2.1.1

packaging to make certain no damage has occurred in shipment. If there is visible damage to the packaging, unpack and inspect the motor immediately. Claims for any damage done in shipment must be made by the purchaser against the transportation company.

2.1.2

rotates freely. Note: Shaft seals and bearing seals may add drag.

CHECK PACKING LIST AND INSPECT

TURN MOTOR SHAFT

by hand to be certain that it

2.1.3

order requirements and compliance with power supply and control equipment requirements.

2.2

Eyebolts or lifting lugs, where provided, are intended for lifting only the motor and accessories mounted by the motor manufacturer (unless specifically stated otherwise on the motor).

Utilizing the motor lifting provision to lift other components such as pumps and gear boxes could result in serious personal injury, death and/or property damage.

Before using the lifting provision, check the eyebolts and/or other lifting means to assure they are not bent or damaged and are completely threaded, seated & secured to the motor. Equipment to lift motor must have adequate lifting capacity. While lifting the motor DO NOT stand under or in the vicinity of the motor. Failure to follow these instructions could result in serious personal injury, death and/or property damage.

2.2.1

CHECK NAMEPLATE

HANDLING

WARNING:

FALLING OBJECT HAZARD

LIFTING ANGLE LIMITATIONS

for conformance with purchase

2.3 STORAGE:

stored indoors in a clean, dry location. Avoid locations with large temperature swings that will result in condensation. Motors must be covered to eliminate airborne dust and dirt. If the storage location exhibits high vibration, place isolation pads under motor to minimize damage to motor bearings.

Motors, not put into service immediately, must be

the

2.3.1

BEARING LUBRICATION:

at the factory; relubrication upon receipt of motor or while in storage is not necessary. If stored more than one year, add grease per lubrication instructions (Table 4-4) before start-up.

2.3.2

SHAFT ROTATION:

shaft be rotated 5 to 10 rotations every three months to distribute the grease in the bearings. This will reduce the chance for corrosion to form on the bearing rolling elements and raceways. Note: Shaft seals and bearing seals may add drag.

2.3.3

DAMP OR HUMID STORAGE LOCATIONS:

unpainted flanges, shafts, and fittings with a rust inhibitor. Apply appropriate power to the motor’s space heaters (if so equipped)

Bearings are grease packed

It is recommended that the motor

Treat

3.0 INSTALLATION AND OPERATION

WARNING:

appropriate national code, local codes and sound practices should install or repair electrical motors and their accessories. Installation should conform to the appropriate national code as well as local codes and sound practices. Failure to follow these instructions could result in serious personal injury, death and/or property damage.

WARNING:

Do not touch electrically live parts. Disconnect, Lockout and Tag input power supply before installing or servicing motor (includes accessory devices). Use a voltmeter to verify that power is off before contacting conductors.

3.1

LOCATION

Only qualified personnel who are familiar with the

ELECTRICAL LIVE CIRCUIT HAZARD

3.1.1

SELECTING A LOCATION:

given to environment and ventilation. Motors should be installed in an area that is protected from direct sunlight, corrosives, harmful gases or liquids, dust, metallic particles, and vibration. A motor with the proper enclosure for the expected operating condition should be selected. Provide accessible clearance for cleaning, repair, service, and inspections (See section 3.1.3 for construction clearances). The location should be considered for possible future motor removal / handling. The free flow of air around the motor should not be obstructed.

3.1.2

temperatures of the air inlet to the motor should not exceed 40°C (104°F) or be less than -30°C (-22°F) unless the motor nameplate specifically states an ambient temperature outside of these limits. The ambient inside an enclosure built around the motor shall not exceed the nameplate ambient. For ambient temperatures outside of these limits consult the motor manufacturer.

Insulation at high temperatures ages at an accelerated rate. Each 10°C increase in temperature reduces the insulation life by one half.

Division 1 Hazardous Locations motors shall NOT be operated below –25°C (-13°F) ambient. (Low temperatures reduce the component mechanical properties.)

3.1.3

AMBIENT TEMPERATURE LIMITS:

CAUTION:

WARNING:

INSULATION DEGRADATION WARNING

HAZARDOUS LOCATIONS AMBIENT LIMIT:

CONSTRUCTION SELECTION per LOCATION:

3.1.3.1

3.1.3.2

indoor or outdoor standard service applications.

DRIPPROOF (OPEN) MOTORS are intended for use indoors where the atmosphere is relatively clean, dry, and non-corrosive. Recommended a minimum clearance of ½ the shaft height between vent openings and the nearest obstruction.

TOTALLY ENCLOSED MOTORS are suitable for

TEAO or AOM (Totally Enclosed Air Over) motors must be

mounted in the air stream. When the motor nameplate states a minimum airflow the motor must be mounted in an air stream meeting this minimum value.

Consideration should be

The ambient

TEFC (Totally Enclosed Fan Cooled) motors must meet a minimum distance of ½ the shaft height between the fan guard grill openings and the nearest obstruction.

3.1.3.3

Locations motors are intended for installations in accordance with NEC Article 500. For all installations involving Hazardous Locations motors, consult the applicable national codes, local codes, and the authority having jurisdiction.

A motor should never be placed in an area with a hazardous process or where flammable gases or combustible materials may be present unless it is specifically designed and nameplated for this type of service. Hazardous Locations motors are intended for installations in accordance with NEC Article 500. For all installations involving Hazardous Locations motors, consult the NEC, local codes, and the authority having jurisdiction. Failure to follow these instructions could result in serious personal injury, death and/or property damage. (For other limitations see section

1.3)

3.2

HAZARDOUS LOCATIONS MOTORS: Hazardous

Division 1 Installations – includes Class I & II: Use only

motors that are UL Listed and CSA Certified or UL Listed and UL Certified for Canada. These motors bear a separate nameplate that includes the UL Listing Mark and CSA Certification Mark or includes the UL Listing Mark and the UL Mark for Canada. This plate also bears the phrase: “ Electric motor for Hazardous Locations” and is marked with the Class, Group and Operating Temperature Code. Division 2 Installations – Class I only: Use only motors that are CSA Certified and bear the CSA Certification Mark. These motors include a phrase on the main motor nameplate that indicates the motor is CSA Certified for Class I, Division 2 / Zone 2 locations. Division 2 Installation – Class II only: Use only Class II motors as described above under “Division I Installations”.

WARNING:

EXPLOSION HAZARD

MOUNTING MOTOR:

3.2.1

installed to a rigid foundation or a mounting surface to minimize

RIGID BASE (FOOTED):

vibration and maintain alignment between the motor shaft and the load’s shaft. The mounting surfaces of the four mounting pads must be flat within 0.01 inches for 210 frame & smaller; 0.015 inches for 250 frame & larger. [IEC 0.25 mm for 130 frame & smaller, 0.38 mm for 160 frame & larger]. This may be accomplished by shims under the motor feet. For special isolation mounting, contact manufacturer for assistance

The motor must be securely

3.2.2

RIGID BASE HOLE SELECTION -6 OR 8 HOLES

3.2.3

VERTICAL MOUNTING:

CAUTION:

Dripproof rigid base (footed) motors do NOT meet “Dripproof” requirements when mounted vertically. If the motor is located in unprotected environments, the addition of a drip cover may be available. Drip covers not available for cast iron rigid base motors.

WARNING:

The lifting provision on standard horizontal footed motors is not designed for lifting the motor in a vertical shaft up or shaft down position. (see 2.2.1 lifting angles). Lifting method / provisions for

ENCLOSURE PROTECTION CAUTION: Most

FALLING OBJECT HAZARD

mounting a rigid base (footed) motor vertically is the responsibility of the installer.

VERTICAL SHAFT DOWN: Most standard horizontal motors thru 449 Fr. (excluding brake motors) can be mounted in a vertical shaft down orientation. For vertical brake motors see section 3.3.6.2.

VERTICAL SHAFT UP:

WARNING:

MOUNT: Hazardous locations motors must NOT be mounted

vertically shaft up without approval by the motor manufacturer. Without proper retaining provisions the rotor may move axially and contact components, creating a spark hazard.

HAZARDOUS LOCATIONS VERTICAL

Belted or Radial Load when mounted vertically

following frame sizes / constructions with applied (axial) down loads within the limit stated are acceptable when mounted vertical shaft up.

Table 3-1 Belted or Radial Load Applications (All speeds)

Frame

280-320

360 &

Notes:

2 The max applied down load is any applied load external to the

3 ”Build-up only”, refers to motors that are specifically ordered

3.3

CAUTION:

Do not connect or couple motor to load until correct rotational direction is established.

Enclosure Construction

Size

TEFC &

140

180

210

250

For TEFC model numbers beginning with 324TTFC or 326TTFC

consult the motor manufacturer to determine if a build up motor is required.

motor, including such things as sheave weight, fan loads, axial belt force, pump load, etc. If the application is direct drive with no applied radial load, consult the motor manufacturer.

and built for shaft up applications. It does not imply that all buildup motors are suitable for shaft up applications.

ODP

TEFC

ODP Steel Yes 25 lbs

TEFC All Yes 35 lbs

ODP Steel Yes 35 lbs

TEFC All Yes 40 lbs

ODP Steel Yes 40 lbs

TEFC All Yes 40 lbs

ODP

320 TTFC

models

All Other

TEFC

ODP Cast Iron

TEFC &

ODP

TEFC Cast Iron

ODP Cast Iron No2 N/A

TEFC &

ODP

Steel Yes 25 lbs

Steel & Cast

Iron

Steel Yes 40 lbs

Cast Iron

Cast Iron &

Aluminum

Steel

APPLICATION ASSEMBLY TO MOTOR:

EQUIPMENT DAMAGE:

Shaft Up

Yes 25 lbs

No2

Eng1

Yes 30 lbs

No2

Build Up

Only4

Build Up

Only4

Build Up

Only4

Max

Applied

Down Load3

N/A

3.3.1

driven equipment minimizes vibration levels, maximizes bearing life, and extends the overall life of the machinery. Consult the drive or equipment manufacturer for more information.

During assembly do NOT force components onto the shaft. Striking or hammering the component may result in bearing damage.

GENERAL: PROPER ALIGNMENT

CAUTION:

BEARING FAILURE

of the motor and

: The

3.3.2

For applications that apply radial, axial or moment loading on the motor shaft see section 3.3.3.

Unless approved by the motor manufacturer do NOT direct couple a vertical shaft up or roller bearing motor. Direct coupling a vertical shaft up motor or a motor with a roller bearing may result in bearing damage.

3.3.3

connected equipment (gears, fans etc.) must be approved by the motor manufacturer unless within the maximum overhung load limits (Table 3-2). Combined loading (axial, radial and/or moments) must be approved by motor manufacturer. For belted loads see section

3.3.4.

Values based on 26,280 hrs B-10 Life For “End of Shaft” Load multiply value by 0.88 To convert from lbf to N multiply value by 4.4482.

DIRECT COUPLING:

CAUTION:

BEARING FAILURE

DIRECT CONNECTED:

Table 3-2 Maximum Radial Load (lbf) @ Middle of the Shaft Extension Length

Frame

Number

143T 106 166 193 210

145T 109 170 199 218

182T 187 230 261 287

184T 193 237 273 301

213T 319 317 470 510

215T 327 320 480 533

254T 500 631 729 793

256T 510 631 736 820

284T - 866 990 1100

286T - 871 1005 1107

324T - 950 1100 1215

326T - 950 1113 1230

364T - 1078 1365 1515

365T - 1078 1380 1540

404T - 1388 1590 1762

405T - 1400 1610 1780

444T - 1580 1795 2005

445T - 1520 1795 1985

447T - 1455 1765 1985

449T - 1640 1885 2130

3600 1800 1200 900

Use flexible couplings if possible.

Radial loading for direct

Motor Rated RPM

3.3.4

BELTED:

The goal of any belted system is to efficiently transmit the required torque while minimizing the loads on the bearings and shafts of the motor and driven equipment. This can be accomplished by following four basic guidelines:

1. Use the largest practical sheave diameter.

2. Use the fewest number of belts possible.

3. Keep sheaves as close as possible to support bearings.

4. Tension the belts to the lowest tension that will still transmit the required torque without slipping. It is normal for V-belts to squeal initially when line starting a motor

3.3.4.1

In general, smaller sheaves produce greater shaft stress and shaft deflection due to increased belt tension. See Table 3-3 for recommended minimum sheave diameters. Using larger sheaves increases the contact with belts which reduces the number of belts required. It also increases the belt speed, resulting in higher system efficiencies. When selecting sheaves, do not exceed the manufacturer's recommended maximum belt speed, typically 6,500 feet per minute for cast iron sheaves. Determine belt speed by the following formula:

Sheave Diameter Guidelines:

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