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November 1999

RGZESDI
Inverter Duty AC Induction Motors

Installation • Operation • Maintenance Instructions

Frames:  143T through S449SS/LS

Содержание RGZESDI

Страница 1: ...November 1999 RGZESDI Inverter Duty AC Induction Motors Installation Operation Maintenance Instructions Frames 143T through S449SS LS ...

Страница 2: ...e of protective equipment such as rubber gloves hard hat safety glasses or face shields flash clothing etc in accordance with established safety practices c is trained in rendering first aid 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 inju...

Страница 3: ...allation operation or maintenance Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser s purposes the matter should be referred to the local Siemens sales office The contents of this instruction manual shall not become part of or modify any prior or existing agreement commitment or relationship The sales contract con tains t...

Страница 4: ...D HOT SURFACES SEVERE PERSONAL INJURY OR PROPERTY DAM AGE CAN RESULT IF SAFETY INSTRUCTIONS ARE NOT FOL LOWED ONLY QUALIFIED PER SONNEL SHOULD WORK ON OR AROUND THIS EQUIPMENT AFTER BECOMING THOR OUGHLY FAMILIAR WITH ALL WARNINGS SAFETY NOTICES AND MAINTENANCE PROCE DURES CONTAINED HEREIN THE SUCCESSFUL AND SAFE OPERATION OF THIS EQUIP MENT IS DEPENDENT UPON PROPER HANDLING INSTALLA TION OPERATION...

Страница 5: ...sconnected interrupt the starting cycle after motor has decelerated to a slow speed Carefully observe for unusual conditions as motor coasts to a stop 4 When checks are satisfactory operate at minimum load and look for unusual conditions Increase load slowly to a maxi mum Check unit for satisfactory operation Electric motors operating under nor mal conditions become quite warm Although some places...

Страница 6: ...s are equipped with Class F normally closed ther mostats 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 opera tion of self ventilated motors at very lo...

Страница 7: ...onve nient and safest method Standards of the Institute of Electrical and Electronics Engineers Inc IEEE recommend that the insulation resistance of stator windings at 75 C measure at 500 volts DC after one Minute should not be less than Rated Voltage of Insulation Machine 1000 resistance in 1000 Megohms This formula is satisfactory for most checks For more information see IEEE Standard No 43 Reco...

Страница 8: ... 1999 Siemens Energy Automation Inc Bulletin NMIM L1006 15M1199TI Printed in U S A Siemens Energy Automation Inc Industrial Products Division 14000 Dineen Drive Little Rock Arkansas 72206 ...

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