Table of Contents
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Thank you for the purchasing the MELSEC-Q series PLC.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series PLC you have purchased, so as to ensure correct use.
SAFETY PRECAUTIONS .............................................................................................................................A- 1
REVISIONS ....................................................................................................................................................A- 4
INTRODUCTION............................................................................................................................................A- 5
CONTENTS....................................................................................................................................................A- 5
Conformation to the EMC Directive and Low Voltage Instruction ................................................................A- 9
About the Generic Terms and Abbreviations ................................................................................................A-10
Product Structure ...........................................................................................................................................A-10
1.1 Features ................................................................................................................................................... 1- 3
1.2 The PID Control System .......................................................................................................................... 1- 5
1.3 About the PID Operation.......................................................................................................................... 1- 6
1.3.1 Operation method and formula......................................................................................................... 1- 6
1.3.2 The Q64TC actions ........................................................................................................................... 1- 7
1.3.3 Proportional action (P-action) ........................................................................................................... 1- 8
1.3.4 Integral action (I-action) .................................................................................................................... 1- 9
1.3.5 Derivative action (D-action)............................................................................................................... 1-10
1.3.6 PID action .......................................................................................................................................... 1-11
1.4 Functions Added to Function Version B and Later ................................................................................. 1-12
2.1 Applicable Systems.................................................................................................................................. 2- 1
2.2 How to Check the Function Version and Software Version.................................................................... 2- 3
3.1 Performance Specifications ..................................................................................................................... 3- 1
3.1.1 Performance specifications of the Q64TC ....................................................................................... 3- 1
3.1.2 Usable temperature sensor types, measurement temperature ranges and data resolutions ........ 3- 3
3.2 Function Summary................................................................................................................................... 3- 4
3.2.1 Auto tuning function........................................................................................................................... 3- 5
3.2.2 Reverse/Forward action select function ........................................................................................... 3- 9
3.2.3 RFB limiter function ........................................................................................................................... 3- 9
3.2.4 Sensor compensation function ......................................................................................................... 3- 9
3.2.5 Unused channel setting..................................................................................................................... 3-10
3.2.6 Forced PID control stop .................................................................................................................... 3-10
3.2.7 Heater disconnection detection function (supported only by Q64TCTTBW, Q64TCRTBW) ......... 3-11
(available for Q64TCTTBW and Q64TCRTBW only)..................................................................... 3-12
3.2.9 Loop disconnection detection function ............................................................................................. 3-12
A - 5
INTRODUCTION
CONTENTS
1- 1 to 1-12
2- 1 to 2- 4
3- 1 to 3-48
A - 5
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