CIRCUTOR QNA500 series - Manual (Page 4)

POWER QUALITY ANALYZER QNA500 8IO
QNA500 8IO Instruction manual 4 / 111
CONTENTS
1.-
DISCLAIMER ................................................................................................................................ 7
2.-
SAFETY PRECAUTIONS.............................................................................................................. 7
3.-
INTRODUCTION ........................................................................................................................... 7
3.1.- GENERAL DESCRIPTION .................................................................................................... 7
3.2.- MULTIFIT SYSTEM MODULES ............................................................................................ 8
3.3.- REGISTRY VARIABLES ....................................................................................................... 9
4.-
INTERCONNECTING MODULES ............................................................................................... 10
5.-
INSTALLATION ........................................................................................................................... 10
5.1.- VERIFICATION UPON RECEPTION .................................................................................. 10
5.2.- ASSEMBLY ......................................................................................................................... 11
5.3.- INSTALLATION METHODS ................................................................................................ 12
5.3.1.- PROCEDURE ............................................................................................................ 12
5.4.- CONNECTING THE ANALYZER ........................................................................................ 13
5.4.1.- AUXILIARY POWER SUPPLY ................................................................................... 13
5.4.2.- NOMINAL VOLTAGE OF THE VOLTAGE MEASUREMENT CIRCUIT ..................... 13
5.4.3.- NOMINAL CURRENT OF THE CURRENT MEASUREMENT CIRCUIT .................... 13
5.4.4.- OPERATING CONDITIONS ...................................................................................... 13
5.4.5.- SAFETY ..................................................................................................................... 13
5.5.- DESCRIPTION OF THE TERMINALS ................................................................................ 14
5.5.1.- CONNECTING THE POWER SUPPLY MODULE ..................................................... 14
5.5.2.- VOLTAGE AND CURRENT CONNECTIONS ............................................................ 15
5.5.3.- CONNECTING INPUTS-OUTPUTS ........................................................................... 16
5.6.- COMMUNICATION CONNECTION DIAGRAM ................................................................... 17
5.6.1.- RS-232 ...................................................................................................................... 17
5.6.2.- RS-485 ...................................................................................................................... 18
5.6.3.- ETHERNET ............................................................................................................... 18
5.7.- MEASUREMENT CONNECTION DIAGRAMS .................................................................... 20
5.7.1.- 4 CURRENT TRANSFORMERS AND 5 VOLTAGE REFERENCES.......................... 20
5.7.2.- 3 CURRENT TRANSFORMERS AND 2 VOLTAGE TRANSFORMERS .................... 20
5.8.- CONNECTING POWER SUPPLY ....................................................................................... 21
6.-
OPERATION OF THE QNA500 (MULTIFIT SYSTEM DESCRIPTION) ....................................... 22