LEESON Permanent Magnet AC Motors - Manual (Page 2)

Table of Contents
1.0 SAFETY INFORMATION
1.1 Electrical Safety
1.2 Mechanical Safety
1.3 Environmental Safety
2.0 RECEIVING & INSPECTION
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 Lifting Angle Limitations
2.3 Storage
2.3.1 Bearing Lubrication
2.3.2 Shaft Rotation
2.3.3 Damp or Humid Storage Locations
3.0 INSTALLATION AND OPERATION
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 Totally Enclosed
3.1.3.2 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 Mounting
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
3.3.4.1 Sheave Diameter Requirements
3.3.4.2 Number of Belts
3.3.4.3 Sheave Location
3.3.4.4 Belt Tension
3.3.5 Permanent Magnet Motor VFD Operation
3.3.5.1 Overspeed Capability
3.3.5.2 Cable Lengths
3.3.5.3 VFD Grounding
3.3.5.4 Stray Voltage On Accessory Leads
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
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 Fuses, Breakers, Overload Relays
3.4.1.2 AC Power Supply Limits
3.4.2 Terminal Box
3.4.2.1 Conduit opening
3.4.3 Lead Connections
3.4.4 Ground Connections
3.4.4.1 Electrical Interference
3.4.5 Start Up
3.4.5.1 Start Up – No Load Procedure
3.4.5.2 Start Up – Load Connected Procedure
4.0 MAINTENANCE
4.1 General Inspection
4.1.1 Ventilation
4.1.2 Insulation
4.1.3 Electrical Connections
4.1.4 Seal Condition
4.1.5 Safety Labels
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
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1.0 SAFETY INFORMATION
1.1 ELECTRICAL SAFETY
WARNING: ELECTRICAL SHOCK HAZARD
Electrical connections shall be made by a qualified electrician 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: ELECTRICAL HAZARD: Failure to connect
motor and variable frequency drive in accordance with the drive
manufacturer’s documentation may result in serious injury, death,
and/or property damage.
WARNING: ELECTRICAL LIVE CIRCUIT HAZARD
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: ELECTRICAL SHOCK HAZARD
Shaft rotation produces voltage in PM motors even when motor is
disconnected from power source. Do not open terminal box or touch
unprotected terminals while the motor shaft is rotating. Failure to do so
may cause serious injury or death to personnel.
WARNING: ELECTRICAL HAZARD
Shaft rotation produces voltage in PM motors even when motor is
disconnected from power source. Do not operate the motor or allow
equipment to back drive the motor above the maximum RPM listed on
the motor nameplate. Failure to do so may cause serious injury or
death to personnel or damage the motor or system equipment.
WARNING: ELECTRICAL GROUNDING HAZARD
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: MAGNETIC FIELD HAZARD
Permanent magnet motor rotors, when removed from the stator,
expose surrounding personnel and equipment to powerful magnetic
fields which may cause serious health hazards to persons with
pacemakers, hearing aids, or other implanted electronic medical
devices and may impact other electronic devices such as mobile
phones, credit cards, etc.
NOTICE:
MOTOR NOT SUITED FOR OPERATION ON LINE POWER
Permanent magnet (PM) motors can only be operated by a PM motor
compatible VFD (Variable Frequency Drive). Connecting directly to
line power may result in motor damage.
1.2 MECHANICAL SAFETY
WARNING: LOOSE PARTS HAZARD
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: ROTATING PARTS HAZARD
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. See section 3.3.7.
WARNING: DO NOT DISASSEMBLE :
Due to powerful magnetic fields, disassembly and assembly of
permanent magnet motors should only be performed by the
manufacturer or specialized personnel authorized by the manufacturer.
Only qualified personnel who are familiar with the applicable national
codes, local codes and sound practices should install or repair electric
motors and their accessories. See the Magnetic Field Hazard in
section 1.1.