York MILLENIUM 351-46 Operating Instructions Manual Download Page 13 | Manualshive

Page: 13 / 24

York MILLENIUM 351-46 Operating Instructions Manual Download Page 13

FORM 160.00-O1 (1020)

JOHNSON CONTROLS

13

LD02725

«
...
11
12
13
14
15
...
»

Summary of Contents for MILLENIUM 351-46

Page 1: ...T YK chillers furnished with an optional Variable Speed Drive VSD TABLE OF CONTENTS VSD Style Variations 2 VSD Unit and Harmonic Filter Component Overview 2 VSD Control System Overview 7 Control Panel...

Page 2: ...cument and any referenced materials This in dividual shall also be familiar with and comply with all applicable industry and governmental standards and regulations pertaining to the task in question S...

Page 3: ...any work on the chiller REVISION NOTES Revisions made to this document are indicated in the following table These revisions are to technical information and any other changes in spelling grammar or f...

Page 4: ...er section a three phase DC to AC inverter section and an output suppression network The AC to DC rectifier utilizes a semi converter formed by the connection of three SCR diode modules 1SCR 3SCR in a...

Page 5: ...FORM 160 00 O1 1020 JOHNSON CONTROLS 5 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 6: ...JOHNSON CONTROLS 6 FORM 160 00 O1 1020...

Page 7: ...FORM 160 00 O1 1020 JOHNSON CONTROLS 7...

Page 8: ...sink temperature is also monitored using thermistor temperature sensor RT4 The Bus Isolator board 031 01624 utilizes three resistors on the board to provide a safe impedance between the DC link filter...

Page 9: ...FORM 160 00 O1 1020 JOHNSON CONTROLS 9 FIG 3A VSD INPUT CURRENT WITHOUT FILTER FIG 3B VSD INPUT CURRENT WITH FILTER LD02727 LD02726...

Page 10: ...capacitors located on the phase bank assembly and the Filter logic board It provides the means to sense the positive midpoint and negative connection points of the filter s DC link VSD CONTROL SYSTEM...

Page 11: ...FORM 160 00 O1 1020 JOHNSON CONTROLS 11 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 12: ...JOHNSON CONTROLS 12 FORM 160 00 O1 1020 FIG 4 IEEE 519 FILTER OPTION...

Page 13: ...FORM 160 00 O1 1020 JOHNSON CONTROLS 13 LD02725...

Page 14: ...f the VSD s cooling fans and pumps control of the pre charge contactor control of the semi converter gating and generation of the PWM firing pulses which are sent to the VSD gate driver and ultimately...

Page 15: ...tz When the Filter is present these additional lines are available by scrolling INPUT KVA ___ TOTAL PWR FACTOR ____ INPUT V AB ___V BC ___V CA ___V INPUT CURR A ___A B ___A C ___A INPUT V THD A ___ B...

Page 16: ...the vanes hit 100 If there is an increase in load while at this point the ACC will increase speed until the vanes are at 95 The ACC will then be allowed to continue to optimize the speed and vanes Su...

Page 17: ...cur rent exceeds a given limit The motor current is sensed by the Current Transformers on the VSD output pole assemblies and the signals are sent to the VSD logic board for processing Maximum instant...

Page 18: ...apacitors are wired in series to achieve a 900 VDC capability for the DC link It is important that the voltage be shared equally from the junction of the center or series capacitor con nection to the...

Page 19: ...two microprocessors on the VSD logic board Message RUN RELAY FAULT Redundant run signals are generated by the Micropanel one via wire 24 and the second via the serial communica tions link Upon receip...

Page 20: ...particular shutdown and its accompany ing message is generated if the filter s DC link voltage drops to a level less than 60 VDC below the filter DC link voltage setpoint The filter DC link voltage se...

Page 21: ...DD level of 8 or less for the VSD system Astandard VSD less the optional filter typically has an input current TDD level on the order of 28 30 Message WARNING FILTER DATA LOSS This message is displaye...

Page 22: ...age was intended as a check of the 519 logic board s internal triangle waveform generator However the accuracy of the measuring circuit on the board can have as much error as the generator it is tryin...

Page 23: ...FORM 160 00 O1 1020 JOHNSON CONTROLS 23 NOTES...

Page 24: ...ennsylvania USA 17349 1 800 524 1330 Subject to change without notice Printed in USA Copyright by Johnson Controls 2020 www johnsoncontrols com ALL RIGHTS RESERVED Form 160 00 O1 1020 Issue Date Octob...

Reviews:

No comments