Tempco tec-220, Instruction Manual, Page: 3 / 36

Warning Symbol
This symbol calls attention to an operating procedure, practice, or
the like which, if not correctly performed or adhered to, could
result in personal injury or damage to or destruction of part or all
of the product and system. Do not proceed beyond a warning sym-
bol until the indicated conditions are fully understood and met.
Using the Manual
Installers . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Chapter 1, 2
System Designer . . . . . . . . . . . . . . . . . . . . . Read All Chapters
Expert User . . . . . . . . . . . . . . . . . . . . . . . . . Read Page 11
NOTE:
It is strongly recommended that a process should incorpo-
rate a LIMIT CONTROL like TEC-910 which will shut
down the equipment at a preset process condition in order to
preclude possible damage to products or system.
Information in this user's manual is subject to change without
notice.
Copyright © 2010, Tempco Electric Heater Corporation, all
rights reserved. No part of this publication may be reproduced,
transmitted, transcribed or stored in a retrieval system, or trans-
lated into any language in any form by any means without the
written permission of Tempco Electric Heater Corporation.
Contents
Page No.
Chapter 1 Overview
1-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-2 Ordering Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-3 Programming Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-4 Keys and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-5 Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-6 Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2 Installation
2-1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-3 Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-4 Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-5 Sensor Installation Guidelines . . . . . . . . . . . . . . . . . . . 8
2-6 Sensor Input Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-7 Control Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-8 Alarm Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-9 Data Communication . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 3 Programming
3-1 Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-2 Signal Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-3 Control Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-4 Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3-5 Configuring the Display . . . . . . . . . . . . . . . . . . . . . . . 14
3-6 Ramp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-7 Dwell Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-8 PV Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3-9 Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3-10 Failure Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3-11 Auto-tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3-12 Manual tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3-13 Manual Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3-14 Data communication. . . . . . . . . . . . . . . . . . . . . . . . . . 17
3-15 Process Variable (PV) Retransmission. . . . . . . . . . . . 17
Chapter 4 Applications
4-1 Heat Only Control With Dwell Timer . . . . . . . . . . . . . 19
4-2 Cool Only Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4-3 Heat-Cool Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 5 Calibration
. . . . . . . . . . . . . . . . . . 21
Chapter 6 Specifications
. . . . . . . . . . . . . 23
Chapter 7 Modbus Communications
7-1 Functions Supported . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7-2 Exception Responses . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7-3 Parameter Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7-4 Data Conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7-5 Communication Examples . . . . . . . . . . . . . . . . . . . . . . 29
Appendix
A-1 Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
A-2 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figures & Tables
Page No.
Figure 1.1 Fuzzy Control Advantage. . . . . . . . . . . . . . . . . . 1
Figure 1.2 Programming Port Overview . . . . . . . . . . . . . . . 2
Figure 1.3 Front Panel Description . . . . . . . . . . . . . . . . . . 3
Figure 1.4 Display in Initial Stage. . . . . . . . . . . . . . . . . . . . 3
Figure 2.1 Mounting Dimensions and Panel Cutout. . . . . . 7
Figure 2.2 Lead Termination for TEC-920 . . . . . . . . . . . . . 7
Figure 2.3 Lead Termination for TEC-220 . . . . . . . . . . . . . 7
Figure 2.4 Rear Terminal Connection for TEC-220 . . . . . . 8
Figure 2.5 Rear Terminal Connection for TEC-920 . . . . . . 8
Figure 2.6 Power Supply Connections . . . . . . . . . . . . . . . . 8
Figure 2.7 Sensor Input Wiring . . . . . . . . . . . . . . . . . . . . . 8
Figure 2.8 Output 1 Relay or Triac (SSR) to
Drive Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2.9 Output 1 Relay or Triac (SSR) to
Drive Contactor . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2.10 Output 1 Pulsed Voltage to Drive SSR . . . . . . 9
Figure 2.11 Output 1 Linear Current. . . . . . . . . . . . . . . . . . 9
Figure 2.12 Output 1 Linear Voltage. . . . . . . . . . . . . . . . . . 9
Figure 2.13 Output 2 Relay or Triac (SSR) to
Drive Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2.14 Output 2 Relay or Triac (SSR) to
Drive Contactor . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2.15 Output 2 Pulsed Voltage to Drive SSR . . . . . . 9
Figure 2.16 Output 2 Linear Current. . . . . . . . . . . . . . . . . . 9
Figure 2.17 Output 2 Linear Voltage . . . . . . . . . . . . . . . . . 9
Figure 2.18 Alarm Output to Drive Load . . . . . . . . . . . . . 10
Figure 2.19 Alarm Output to Drive Contactor . . . . . . . . . . 10
Figure 2.20 RS-485 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 2.21 RS-232 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 2.22 Configuration of RS-232 Cable . . . . . . . . . . . 10
Figure 3.1 Conversion Curve for Linear Type
Process Value . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 3.2 Heat Only ON-OFF Control . . . . . . . . . . . . . . . 12
Figure 3.3 Output 2 Deviation High Alarm . . . . . . . . . . . . 13
Figure 3.4 Output 2 Process Low Alarm . . . . . . . . . . . . . . 13
Figure 3.5 RAMP Function . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 3.6 Dwell Timer Function . . . . . . . . . . . . . . . . . . . . 14
Figure 3.7 PV Shift Application . . . . . . . . . . . . . . . . . . . . . 15
Figure 3.8 Filter Characteristics . . . . . . . . . . . . . . . . . . . . . 15
Figure 3.9 Effects of PID Adjustment . . . . . . . . . . . . . . . . 16
Figure 4.1 Heat Control Example. . . . . . . . . . . . . . . . . . . . 19
Figure 4.2 Cooling Control Example . . . . . . . . . . . . . . . . . 19
Figure 4.3 Heat-Cool Control Example . . . . . . . . . . . . . . . 20
Figure 5.1 RTD Calibration . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5.2 Cold Junction Calibration Setup . . . . . . . . . . . . 22
Table 1.1 Display Form of Characters . . . . . . . . . . . . . . . . 3
Table 3.1 Heat-Cool Control Setup Value . . . . . . . . . . . . . 11
Table 3.2 PID Adjustment Guide . . . . . . . . . . . . . . . . . . . . 16
Table A.1 Error Codes and Corrective Actions . . . . . . . . . 30
Appendix
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31