Baldor-Reliance® AC & DC Motor Installation & Maintenance

Installation & Maintenance 1MN416

Baldor-Reliance

AC & DC Motor Installation & Maintenance

Note! The manufacturer of these products, Baldor Electric Company, became ABB Motors and Mechanical Inc. on March 1,

2018. Nameplates, Declaration of Conformity and other collateral material may contain the company name of Baldor Electric

Company and the brand names of Baldor-Dodge and Baldor-Reliance until such time as all materials have been updated to

reﬂect our new corporate identity.

Safety Notice: Be sure to read and understand all of the Safety Notice statements in MN408, MN605 or Product Speciﬁc manual for

your motor. A copy is available at: http://www.baldor.com/support/product_manuals.asp

WEEE EU Directive 2012/19/EU

Products that are marked with the crossed-out wheeled bin

symbol as shown here; shall be handled by applying following

information:

The crossed-out wheeled bin symbol on the

product(s) and / or accompanying documents

means that used electrical and electronic

equipment (WEEE) should not be mixed with

general household waste. For users in the

European Union, please contact your dealer or

supplier for more information on how to

discard electrical and electronic equipment

(EEE).

ACCEPTANCE

Thoroughly inspect this equipment before accepting

shipment from the transportation company. If any damage or

shortage is discovered do not accept until noted on the freight bill.

Report all damage to the freight carrier.

SAFETY

Eye bolts, lifting lugs or lifting openings, if provided, are

intended only for lifting the motor and motor mounted

standard accessories not exceeding, in total 30% of the

motor weight. These lifting provisions should never be used when

lifting or handling the motor and driven equipment. Eye bolt lifting

capacity rating is based on a lifting alignment coincident with eye

bolt center line. Eye bolt capacity reduces as deviation from this

alignment is increased. Be sure eye bolts are tight and prevented

from turning before lifting.

INSTALLATION OUTSIDE THE USA:

Refer to MN408, MN605 and MN1383 for Compliance with

European Directives. Copies are available at:

http://www.baldor.com/support/product_manuals.asp

MOTOR ENCLOSURE

ODP, Open drip proof motors are intended for use in clean, dry

locations with adequate supply of cooling air. These motors

should not be used in the presence of ﬂammable or combustible

materials. Open motors can emit ﬂame and/or molten metal in the

event of insulation failure.

Standard Totally Enclosed motors provide additional protection

from moisture and dust compared to Open motors. Severe

Duty and Washdown Duty motors provide additional protection

compared to Standard Totally Enclosed motors.

Explosion protected motors, as indicated by a Nationally

Recognized Testing Laboratory Certiﬁcation mark and

marking with Class, Division and Temperature Code are

intended for installation in hazardous locations as described in

Article 500 of the NEC. Refer to MN408 for more details.

MOUNTING

Foot mounted machines should be mounted to a rigid

foundation to prevent excessive vibration. Shims may be used if

location is uneven.

Flange mounted machines should be properly seated and

aligned. Note: If improper rotation direction is detrimental to the

load, check rotation direction prior to coupling the load to the

motor shaft.

For V-belt drive, mount the sheave pulley close to the

motor housing. Allow clearance for end to end movement of

the motor shaft. Do not overtighten belts as this may cause

premature bearing failure or shaft breakage.

Direct coupled machines should be carefully aligned and the

shaft should rotate freely without binding.

GENERAL

The user must select a motor starter and overcurrent

protection suitable for this motor and its application. Consult

motor starter application data as well as the National Electric

Code and/or applicable local codes. Special motors for use by

United States Government including special speciﬁcations, master

plans, etc. refer to the applicable master plans and speciﬁcations

involved.

On motors received from the factory with the shaft blocked,

remove blocking before operating the motor. If motor is to be

reshipped alone or installed to another piece of equipment, the

shaft block must be installed to prevent axial movement and

prevent brinelling of the bearings during shipment.

TESTING

If the motor has been in storage for an extensive period or has

been subjected to adverse moisture conditions, check the motor

insulation resistance with a meg ohm meter. Depending on

storage conditions it may be necessary to regrease or change

rusted bearings. Contact your local sales ofﬁce if resistance is

less than 5 meg ohms.

WARNING: Do not touch electrical connections before you

ﬁrst ensure that power has been disconnected.

Electrical shock can cause serious or fatal injury.

WARNING: Be sure the system is properly grounded before

applying power. Electrical shock can cause serious or

fatal injury.

INSTALLATION

This motor must be installed in accordance with National

Electric Code, NEMA MG-2, IEC standards or local codes.

WIRING

Connect the motor as shown in the connection diagrams. If this

motor is installed as part of a motor control drive system, connect

and protect the motor according to the control manufacturers

diagrams. Refer to MN408 or MN605 for additional details on lead

marking. The wiring, fusing and grounding must comply with the

National Electrical Code or IEC and local codes. When the motor is

connected to the load for proper direction of rotation and started,

it should start quickly and run smoothly. If not, stop the motor

immediately and determine the cause. Possible causes are: low

voltage at the motor, motor connections are not correct or the

load is too heavy. Check the motor current after a few minutes of

operation and compare the measured current with the nameplate

rating.

2 Installation & Maintenance MN416

GROUNDING

Ground the motor according to NEC and local codes. In the USA

consult the National Electrical Code, Article 430 for information on

grounding of motors and generators, and Article 250 for general

information on grounding. In making the ground connection, the

installer should make certain that there is a solid and permanent

metallic connection between the ground point, the motor or

generator terminal housing, and the motor or generator frame. In

non-USA locations consult the appropriate national or local code

applicable.

ADJUSTMENT

The neutral is adjustable on some DC motors. AC motors

have no adjustable parts.

Noise

For speciﬁc sound power or pressure level information, contact

your local sales ofﬁce.

VIBRATION

This motor is balanced to NEMA MG1, Part 7 standard.

BRUSHES (DC Motors)

Periodically, the brushes should be inspected and all brush dust

blown out of the motor. If a brush is worn 1/2, (length speciﬁed in

renewal parts data), replace the brushes.

WARNING: Guards must be insalled for rotating parts such

as couplings, pulleys, external fans, and unused

shaft extensions, should be permanently guareded to

prevent accidental contact by personnel. Accidental

contact with body parts or clothing can cause serious

or fatal injury.

Reassemble and seat the new brushes using a brush seating

stone. Be sure the rocker arm is set on the neutral mark.

INSPECTION

Before connecting the motor to an electrical supply, inspect for

any damage resulting from shipment. Turn the shaft by hand to

ensure free rotation. Motor leads must be isolated before the

shaft will turn freely on permanent magnet motors.

DRAIN PLUGS

One or more condensation drain plugs are provided on each end

plate for various motor types and mounting positions. If your

motor is equipped with multiple condensation drain holes in each

end plate. Please use this chart for proper orientation of plugs

and/or T’drains. Failure to follow these instructions will void the

warranty.

Position A Position B

Position C Position D

Position E Position F

Positions A, B, C, D: leave drain open or install T’drain on both

ends of the motor at circuled locations. Plug all other drain

holes. Positions E, F: leave drain open or install T’drain at

circled locations. Plug all other drain holes.

MOUNTING

Mount the motor on a foundation sufﬁciently rigid to prevent

excessive vibration. Grease lubricated ball bearing motors may be

mounted with the feet at any angle. After careful alignment, bolt

motor securely in place. Use shim to ﬁll any unevenness in the

foundation. Motor feet should sit solidly on the foundation before

mounting bolts are tightened.

IP (Ingress Protection)

IP designations include two numerals, the ﬁrst characteristic

numeral is for ingress solid bodies and from dust. The second

for ingress protection from liquid - water. The IP rating assigned

to a motor is based on horizontal mounting unless the motor

is speciﬁcally designed for vertical positioning. Mounting the

horizontal rated motor in a non-horizontal position may require

additional protection, contact the local ABB District Ofﬁce to

review the mounting requirements and ingress protection. Open

motors (IPX2 and IPX3) must be located, oriented, or additionally

protected in the application to prevent falling water from entering

the motor.

GUARDING

After motor installation is complete, a guard of suitable

dimensions must be constructed and installed around the

motor/gearmotor. This guard must prevent personnel from coming

in contact with any moving parts of the motor or drive assembly

but must allow sufﬁcient cooling air to pass over the motor. If a

motor mounted brake is installed, provide proper safeguards for

personnel in case of brake failure. Brush inspection plates and

electrical connection cover plates or lids, must be installed before

operating the motor.

STARTING

Before starting motor remove all unused shaft keys and loose

rotating parts to prevent them from ﬂying off. Check direction of

rotation before coupling motor to load. The motor should start

quickly and run smoothly and with little noise. If the motor should

fail to start the load may be too great for the motor, the voltage

is low or the motor has been miswired. In any case immediately

shut motor off and investigate the cause.

ROTATION

To reverse the direction of rotation, disconnect and lockout power

and interchange any two of the three AC power leads for three

phase motors. For two-phase four wire, disconnect and lockout

power and interchange the AC line leads on any one phase.

For two phase three wire, disconnect and lockout power and

interchange phase one and phase two AC line leads.

MAINTENANCE PROCEDURES

WARNING: Do not touch electrical connections before you

ﬁrst ensure that power has been disconnected.

Electrical shock can cause serious or fatal injury.

WARNING: Surface temperatures of motor enclosures may

reach temperatures which can cause discomfort or

injury to personnel accidentally coming in contact

with hot surfaces. Protection should be provided by

the user to protect against accidental contact with

hot surfaces. Failure to observe this precaution could

result in bodily injury.

Lubrication Information

Refer to motor nameplate for recommended lubricant. If none

is shown, the recommended lubricant for anti-friction bearings

(15°F to 120°F (-9°C to 49°C) is POLYREX EM.

For Min Start Temp -100°F (38°C) use AEROSHELL #7.

For roller bearings is ExxonMobil SHC-220.

Relubrication Intervals

(For motors with regrease capability)

New motors that have been stored for a year or more should

be relubricated. Lubrication is also recommended at Table 1

intervals.

Installation & Maintenance 3MN416

LUBRICATION INSTRUCTIONS

Cleanliness is important in lubrication. Any grease used to

lubricate anti friction bearings should be fresh and free from

contamination. Properly clean the grease inlet area of the motor to

prevent grease contamination.

1. Select service conditions (Table 2).

2. Select lubrication interval (Table 1).

3. Adjust lubrication interval with multiplier (Table 3).

4. Select volume of grease (Table 4).

Table 1 Relubrication Interval

NEMA (IEC) Frame Size Rated Speed (RPM)

3600 1800 1200 900

Up to 210 incl. (132) 5500Hrs. 12000Hrs. 18000Hrs. 22000Hrs.

Over 210 to 280 incl. (180) 3600Hrs. 9500Hrs. 15000Hrs. 18000Hrs.

Over 280 to 360 incl. (225) 2200Hrs. 7400Hrs. 12000Hrs. 15000Hrs.

Over 360 to 5800 incl. (400) 2200Hrs. 3500Hrs. 7400Hrs. 10500Hrs.

* Relubrication intervals are for ball bearings.

For vertically mounted motors and roller bearings, divide the relubrication interval by 2.

** For motors operating at speeds greater than 3600 RPM, contact your local sales ofﬁce for relubrication recommendations.

Table 2 Service Conditions

Severity of Service Hours per day of

Operation

Ambient Temperature

Maximum

°F ( °C)

Atmospheric

Contamination

Standard 8 104°F (40°C) Clean, Little Corrosion

Severe 16 Plus 122°F (50°C) Moderate dirt, Corrosion

Extreme 16 Plus >122°F (50°C)* or

Class H Insulation

Severe dirt, Abrasive dust, Corrosion,

Heavy Shock or Vibration

Low Temperature <-20°F (-29°C)**

* Special high temperature grease is recommended (Dow Corning DC44).

** Special low temperature grease is recommended (AEROSHELL 7).

Note: Different grease types are generally incompatible and should not be mixed. Mixing different types can cause lubricant and

bearing failure. Thoroughly clean bearing and cavity before changing grease type.

Table 3 Lubrication Interval Multiplier

Severity of Service Multiplier

Standard 1.0

Severe 0.5

Extreme 0.1

Low Temperature 1.0

Some motor designs use different bearings on each motor end. This is normally indicated on the motor nameplate. In this case, the

larger bearing is installed on the motor drive endplate. For best relubrication results, only use the appropriate amount of grease for

LUBRICATION PROCEDURE

Bearings should be lubricated while stationary and the motor is

warm.

1. Locate the grease inlet, clean the area, and replace the pipe

plug with a grease ﬁtting.

2. Locate and remove the grease drain plug, if provided.

3. Add the recommended volume of the recommended grease.

4. Replace the grease inlet plug and run the motor for 15

minutes.

5. Replace the grease drain plug.

SPECIAL APPLICATIONS

For special temperature applications, contact your local sales

ofﬁce.

Relubrication Intervals

Recommended relubrication intervals are shown in Table 1. It is

important to realize that the recommended intervals of Table 2 are

based on average use. Refer to additional information contained

in Tables 2, 3 and 4.

—

ABB Motors and Mechanical Inc.

5711 R. S. Boreham Jr. Street

Fort Smith, AR 72901

Ph: 1.479.646.4711

baldor.com

*MN416-1122*

11/22

MN416

each bearing size (not the same for both).

Table 4 Amount of Grease to Add

Frame Size

NEMA (IEC)

Bearing Description (These are the “Large” bearings (Shaft End) in each frame size)

Bearing Weight of Grease to add in Ounces (Grams)

Volume of grease to be added

teaspoon

56 to 140 (90) 6203 0.08 (2.4) 0.15 0.5

140 (90) 6205 0.15 (3.9) 0.2 0.8

180 (100−112) 6206 0.19 (5.0) 0.3 1.0

210 (132) 6307 0.30 (8.4) 0.6 2.0

250 (160) 6309 0.47 (12.5) 0.7 2.5

280 (180) 6311 0.61 (17) 1.2 3.9

320 (200) 6312 0.76 (20.1) 1.2 4.0

360 (225) 6313 0.81 (23) 1.5 5.2

400 (250) 6316 1.25 (33) 2.0 6.6

440 (280) 6318 1.52(40) 2.5 8.2

440 (280) 6319 2.12 (60) 4.1 13.4

5000 to 5800 (315−400) 6328 4.70 (130) 9.2 30.0

5000 to 5800 (315−400) NU328 4.70 (130) 9.2 30.0

360 to 449 (225−280) NU319 2.12 (60) 4.1 13.4

AC Induction Servo

76 Frame 180 (112) 6207 0.22 (6.1) 0.44 1.4

77 Frame 210 (132) 6210 0.32 (9.0) 0.64 2.1

80 Frame 250(160) 6213 0.49 (14.0) 0.99 3.3

Typical IEC vs NEMA Lead Marking

Single Phase Non-Reversible

Refer to the connection diagram provided on the motor.

U1(T1)

U2(T4)

Single Phase Reversible

U1(T1)

U2(T4)

Main

Winding

Auxiliary Winding

Z1(T8) Z2(T5)

Dual Voltage Reversible

U1(T1)

U2(T2)

Main

Winding

Auxiliary Winding

Z1(T8) Z2(T5)

U3(T3)

U4(T4)

Three Phase

For single winding 3 phase motors, lead markings can be

directly translated between IEC and NEMA designations.

For these motors, the lead markings are:

U1=T1 U2=T4 U3=T7 U4=T10

V1=T2 V2=T5V3=T8 V4=T11

W1=T3W2=T6 W3=T9W4=T12

Refer to the connection diagram provided on the motor.

Some examples are as follows:

Three Leads

U(T1)

W(T3)

V(T2)

WYE Connected

U(T1)

W(T3)

V(T2)

DELTA Connected

U(T1)

Line 1

V(T2)

Line 2

W(T3)

Line 3

Wiring Diagram

Six Leads

U1(T1)

W1(T3)

V1(T2)

WYE Connection

U1(T1)

V2(T5)

V1(T2)

DELTA Connection

W2(T6) U2(T4)

Line 2

V2(T5)

Line 3

Wiring Diagram

U2(T4)

V2(T5)W2(T6)

W1(T3)

U2(T4)

W2(T6)

U1(T1)V1(T2) W1(T3)

W2(T6)

Line 1

U2(T4)

Line 2

V2(T5)

Line 3

U1(T1)V1(T2) W1(T3)

High Volts/StartLow Volts/Run

Line 1

DC Motors

Lead markings can be translated between IEC and NEMA

designations as follows:

Armature

Series Field

Shunt Field

NEMA

A1, A2

S1, S2

F1, F2

IEC

A1, A2

D1, D2

E1, E2

Refer to the connection diagram provided on the motor.