November 1999 RGZESDI Inverter Duty AC Induction Motors Installation • Operation • Maintenance Instructions Frames: 143T through S449SS/LS
SIGNAL WORDS The signal words “Danger,” Warning” and “Caution” used in this manual indicate the degrees of hazard that may be encountered by the user. These words are defined as: Danger - Indicates death or serious injury will result if proper precautions are not taken. Warning - Indicates death or serious injury or property damage can result if proper precautions are not taken. Caution - Indicates some injury or property damage may result if proper precautions are not taken.
November 1999 TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
November 1999 INSTALLATION & OPERATION INTRODUCTION THIS EQUIPMENT CONTAINS HAZARDOUS VOLTAGES, ROTATING PARTS AND HOT SURFACES. SEVERE PERSONAL INJURY OR PROPERTY DAMAGE CAN RESULT IF SAFETY INSTRUCTIONS ARE NOT FOLLOWED. ONLY QUALIFIED PERSONNEL SHOULD WORK ON OR AROUND THIS EQUIPMENT AFTER BECOMING THOROUGHLY FAMILIAR WITH ALL WARNINGS, SAFETY NOTICES, AND MAINTENANCE PROCEDURES CONTAINED HEREIN.
OPERATION Repeated trial starts can over heat the motor and result in motor burnout (particularly for across the line starting). If repeated trial starts are made, allow sufficient time between trials to permit heat to dissipate from windings and rotor to prevent overheating. Starting currents are several times running currents and heating varies as the square of the current. After installation is completed, but before motor is put into regular service, make an initial start as follows: 1.
ACCESSORIES Thermostats All RGZESDI motors are equipped with Class F normally closed thermostats for detection of overload conditions. The thermostat is a device that is intended to be used in the alarm or protective circuit of an RGZESDI motor. It is in direct contact with the stator coil and is useful in guarding against loss of normal ventilation air, high ambient temperature, and prolonged operation of self-ventilated motors at very low speeds.
BEARING LUBRICATION Bearing life is assured by maintaining proper alignment, proper belt or chain tension, and good lubrication at all times. Prior to shipment, motor bearings are lubricated with the proper amount and grade to provide six months of satisfactory service under normal operating conditions. For best results, grease should be compounded from a polyurea base and a good grade of petroleum oil. It should be of No. 2 consistency and stabilized against oxidation.
Siemens Energy & Automation, Inc. Industrial Products Division 14000 Dineen Drive Little Rock, Arkansas 72206 © 1999 Siemens Energy & Automation, Inc. Bulletin NMIM-L1006 15M1199TI Printed in U.S.A.
