Rockwell Automation 1329R User Manual

Installation, Operation and Maintenance Manual

Standard Industrial AC Induction Motors

• 180-449 Frames (NEMA)

• 112-280 Frames (IEC)

2 Standard Industrial AC Induction Motors

ATTENTION:Onlyqualiﬁedelectricalpersonnelfamiliar with the construction and operation of this equipment and

the hazards involved should install, adjust, operate, and/or service this motor. Read and understand this manual in its entirety before proceeding. Failure to observe this precautioncouldresult in severe bodily injuryorlossof life.

Table of Contents Receiving and Handling

Acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Storage Conditions - Short Term . . . . . . . . . . . . . . . . . . . . .3

Storage Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Storage for Extended Periods (greater than 18 months) . . .5

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Installation

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Lifting Means . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Rotating Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Drain Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Test for General Condition . . . . . . . . . . . . . . . . . . . . . . . . .11

Initial Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Operation Maintenance and Repair

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Lubrication of Bearings

Grease Lubricated Bearings . . . . . . . . . . . . . . . . . . . . . . .15

Recommended Lubricant . . . . . . . . . . . . . . . . . . . . . . . . . .16

Lubrication Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Lubrication Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Replacement Bearings Total Service Programs

Renewal Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Cross Sectional and Parts Identification Drawing

Receiving and Handling Acceptance

Thoroughly inspect this equipment before accepting shipment from the transportation company.If any of the goods called for in the bill of lading or express receipt are damaged or the quantity is short, do not accept them until the freight or express agent makes an appropriate notation on your freight bill or express receipt. If any concealed loss or damage is discovered later, notify your freight or express agent at once and request him to make an inspection. We are willing to assist you in collecting claims for loss or damage in shipment; however, this willingness on our part does not remove the transportation company's responsibility in reimbursing you for collection of claims or replacement of material. Claims for loss or damage in shipment must not be deducted from the invoice, nor should payment of the invoice be withheld awaiting adjustment of such claims, as the carrier guarantees safe delivery.

If considerable damage has been incurred and the situation is urgent, contact the nearest Allen-Bradley Sales Ofﬁce for assistance. Please keep a written record of all such communications.

Standard Industrial AC Induction Motors 3

Storage Conditions - Short Term

Following are requirements for storage:

1. Motors must be kept in their original containers (or with

equivalent protection). In addition, they must be stored in a warehouse free from extremes in temperature, humidity and corrosive atmosphere.

2. If unusual vibrations exist at the storage location, the motor

should be protected with isolation pads.

3. All breathers and drains are to be operable while in storage and/or

the moisture drain plugs should be removed. The motors must be stored so the drain is at the lowest point.

Storage Preparation

Improper storage of electric machines will result in seriously reduced reliability of that equipment.

For example, the following items can occur to an electric motor that does not experience regular usage while exposed to normally humid atmospheric conditions:

• Bearings may rust.

• Rust particles from surrounding surfaces may contaminate the

bearings.

• The electrical insulation may absorb an excessive amount of

moisture leading to the motor winding failing to ground.

4 Standard Industrial AC Induction Motors

The following preparations should be followed:

1. Minimize condensation in and around the motor by use of

desiccants or other humidity control methods.

2. Motor space heaters, when speciﬁed, must be energized when

there is a possibility that the ambient storage conditions will reach the dew point. Space heaters are an option.

3. Coat all external machined surfaces with a material to prevent

corrosion. An acceptable product for this purpose is Exxon Rust Ban #392 (or equivalent).

4. Measure and record the electrical resistance of the winding

insulation witha megger or insulation resistance meter. Minimum accepted megohm level is the insulation kv rating + 1 megohm.If levels fall below this value, contact your Allen-Bradley Sales Ofﬁce. The recorded data will be needed when the motor is removed from storage.

5. Some motors have a shipping brace attached to the shaft to

prevent damage during transportation. The shipping brace, if provided, must be removed and stored for future use. Before the motor is moved, the brace must be reinstalled to hold the shaft ﬁrmly in place against the bearing.

6. When placing the motor into extended storage (greater than 3

months), the motors with regreasable bearings must be greased per

Table A. The motor shaft must then be rotated a minimum of

15 times after greasing. Non-regreasable motors with a “Do Not Lubricate” nameplate should also be rotated 15 times to redistribute grease within the bearing.

7. Before lubricating the motor, remove the grease drain plug

(opposite the grease ﬁtting) on the bottom of each end bracket. Replace the plug after greasing.

Table A Lubrication Volume (Storage)

NEMA (IEC) Frame Size Volume in Cubic Inches (cm3)

182-215 (112-132) 0.5 (8) 254-286 (160-180) 1.0 (16) 324-365 (200-225) 1.5 (24) 404-449 (250-280) 2.5 (40)

8. When the motor is placed into extended storage, regreasable

bearings must be greased (see

Table A). Motor shafts are to be

rotated 15 revolutions manually every 3 months and additional grease added every nine months to each bearing (see

Table A).

Bearings must be greased at the time of removal from storage. Shafts on non-regreasable motors should be rotated 15

revolutions every 3 months.

9. All breather drains should be fully operable while in storage. The

motors must be stored so the drain is at the lowest point. All breathers and automatic “T” drains must be operable to allow breathing at points other than through the bearing ﬁts.

Standard Industrial AC Induction Motors 5

10. Space heaters, when speciﬁed, are to be connected and operable

while in storage.

11. Windings must be meggered at the time equipment is put in

storage (refer to step 4 on page 4). When the motor is removed from storage, the insulation resistance must not have dropped more than 50% from the initial reading. Any drop below this point necessitates electrical or mechanical drying.

12. When motors are not stored in the original containers, but are

removed and mounted on other pieces of machinery, the mounting must be such that the drains/breathers and space heaters are fully operable. In this respect, the drains must be kept at the lowest point in the motor so that all condensation can automatically drain out.

Storage for Extended Periods (greater than 18 months)

All of the preceding requirements described in this document apply, with the following additional requirements.

1. Motor must be crated in a box similar to Export Boxing, but the

“shell” (sides and top of box) will be lag-bolted to the wooden base (not nailed). This design will allow the box to be opened and closed many times without destroying the “shell.”

2. The motor will be sealed in an airtight vapor barrier bag with

desiccant inside. This airtight bag will give added protection during shipment of motor to the permanent storage area.

3. After the ﬁrst “inspection” (for megger reading, turing the shaft,

etc.) it is recommended that the vapor bag be re-sealed with masking tape (or similar method). New desiccant should also be added inside the bag before closing. Once closed, place the shell over the motor and replace the lap bolts.

4. If a “zipper” type of bag is used (instead of a “heat-sealed” bag),

then close the bag with the zipper (instead of taping).

5. New desiccant must be added inside the bag after each periodic

inspection.

6. Minimize the accumulation of condensed water in and around the

machine.

Unpacking

After unpacking and inspecting, turn the motor shaft by hand to assure that there are no obstructions to free rotation.

Equipment which has been in storage for some time should be tested and relubricated (regreasable type) prior to being put into service. Refer to “Test General Condition” and “Lubrication” for procedure to be performed after extended storage.

Equipment with roller bearings is shipped with a shaft block. After removing the shaft block, be sure to replace any bolts that are required in service and that were used to hold the shaft block in place during shipment.

6 Standard Industrial AC Induction Motors

Installation Inspection

After the motor is unpacked, examine the nameplate data to see that it agrees with the power circuit to which it is to be connected. The motor will operate with frequency not more than 5% and voltage not more than 10% above or below the nameplate data, or combined variation of voltage and frequency of not more than 10% above or be low nameplate data. Efﬁciency, power factor and current may vary from nameplate data. Performance within these voltage and frequency variations will not necessarily be in accordance with the standards established for operation at rated voltage and frequency.

Location

The motor should be installed in a location compatible with the motor enclosure and speciﬁc ambient.

To allow adequate air ﬂow, the following clearances must be maintained between the motor and any obstruction:

TEFC (IC0141) Enclosures

Fan Cover Air Intake 180-210T Frame 25.4 mm (1.00 in.)

Exhaust Envelope equal to the “P” dimension on the motor dimension sheet

Protected Enclosures

Bracket Intake Same as TEFC Frame Exhaust Exhaust out the sides-envelope a minimum of the “P” dimension plus

250-449T Frame 101.6 mm (4.00 in.) IEC 112 - 132 25.0 mm (0.98 in.) IEC 160 - 280 100.0 mm (3.94)

50.0 mm (1.97 in.). Exhaust out the end-same as intake.

Table B General Effect of V oltage & Frequency Variation on Induction-motor Characteristics

Starting & Maximum Running

Variation Voltage Variation:

120% voltage

110% voltage

Functions of Voltage

90% Voltage

Frequency Variation:

105% frequency

Functionof frequency

95% frequency

1% phase unbalance

2% phase unbalance

Torque

Increase 44%

Increase 21%

(voltage)

Decrease 19%

Decrease 10%

(frequency)

Increase 11%

Slight decrease

Sync Speed Slip %

No change

Constant 1

No change

Increase5%Practically

Frequency (sync

Decrease5%Practically

Slight decrease

Decrease 30%

Decrease 17%

(voltage) Increase

23%

no change

Full Load Speed

Increase

1.5%

Increase1%Slight

(sync

speed slip) Decrease

1-1/2%

Increase5%Slight

speed slip) Decrease5%Slight

Slight decrease2%decrease

Slight decrease8%decrease

NOTE: This table shows goneral effects, which will vary somewhat for specific ratings.

Efﬁciency Power Factor/COS

Decrease

6-0% Decrease (1-75 HP)

0-3% Increase (100-200 HP)

decrease

Decrease 2 points

increase

decrease

Decrease 1/2-2 points

Practically no change

Slight increase

Slight decrease

7-20 points

Decrease 1-2 points

Increase 1-2 points

Slight increase

Slight decrease

Decrease 5-15 points

Decrease 5-10 points

Increase 5 points

Slight increase

Slight decrease

5-6% decrease

7% decrease

Decrease 10-30 points

Decrease 5 points

Increase 2-3 points

Slight increase

Slight decrease

Decrease 15-40 points

Decrease 5-6 points

Increase 4-5 points

Slight increase

Slight decrease

Full Load

Starting

Current

Increase

12%

20%

Increase

2-4%

10-12% voltage (voltage)

Increase

Decrease

11%

10-12%

Slight

Decrease

decrease

5-6%

frequency

Slight

Increase

increase

5-6%

1-1/2%

Slight

increase

decrease

Slight decrease

increase

Temperature Rise

(full load)

Increase 5-6 degrees C. (1-75 HP)

Decrease3-4 degrees C. (100-200 HP)

Increase 3-4 degrees C.

Increase 6-7 degrees C.

Slight decrease

Increase slightly

2% increase

8% increase

Maximum Overload Capacity

Increase 44%

Increase 21%

Decrease 19%

Slight decrease

Increase slightly

Magnetic Noise

(no-loadin particular)Full-Load 3/4 Load 1/2 Load Full Load 3/4 Load 1/2 Load

Noticeable increase

Increase slightly

Slight decrease

Increase slightly

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