Brainchild C21, C91 User Manual

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User's ManualUser's Manual

BRAINCHILD

UM0C911D

DIN EN ISO 9001

Certificate: 01 100 98505

C21 / C91 Auto-Tune Fuzzy / PID Process / Temperature Controller

C21 / C91 Auto-Tune

Fuzzy / PID

Process

/ Temperature Controller

Warning SymbolWarning Symbol

Use the ManualUse the Manual

The 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 symbol until the indicated conditions are fully understood and met.

Installers

System Designer

Expert User

Read Chapter 1, 2

Read All Chapters

Read Page 12

NOTE:

It is strongly recommended that a process should incorporate a LIMIT CONTROL like L91 which will shut down the equipment at a preset process condition in order to preclude possible damage to products or system.

It is strongly recommended that a process should incorporate a LIMIT

CONTROL like L91 which will shut down the equipment at

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 April 2003, The Brainchild Corporation, all rights reserved. No part of this publication may be reproduced, transmitted, transcribed or stored in a retrieval system, or translated into any language in any form by any means without the written permission of the Brainchild Corporation.

UM0C911C2

This manual is applicable for the products with software version 23 and later version.

This manual is applicable for the products with software version 23

and later version.

UM0C911A 3

Contents

Chapter 1 OverviewChapter 1 Overview 1-1 General -------------------------5

1-2 Ordering Code ---------------8 1-3 Programming Port ------------9 1-4 Keys and Displays ---------10 1-5 Menu Overview -------------12 1-6 Parameter Descriptions ---13

Page No

Chapter 2 Installation

2-1 Unpaking ----------------------20 2-2 Mounting ----------------------20 2-3 Wiring precautions ----------22 2-4 Power Wiring -----------------25 2-5 Sensor Installation ----------

Guidlines----------------------25 2-6 Sensor Input Wiring --------26 2-7 Control Output Wiring -----26 2-8 Alarm Wiring -----------------30 2-9 Data Communication ------31

Chapter 3 Programming

3-1 Lockout ------------------------33 3-2 Signal Input -------------------33 3-3 Control Outputs --------------34 3-4 Alarm ---------------------------39 3-5 Configure Display -----------40 3-6 Ramp ---------------------------41 3-7 Dwell Timer -------------------42 3-8 PV Shift ------------------------43 3-9 Digital Filter -------------------44 3-10 Failure Transfer -------------45 3-11 Auto-tuning ------------------46 3-12 Manual tuning --------------47 3-13 Manual Control -------------48 3-14 Data Communication -----50 3-15 PV Retransmission --------50

Chapter 4 Applications

Chapter 5 Calibration --------55Chapter 5 Calibration

Chapter 6 Specifications ----60Chapter 6 Specifications

Page No

4-1 Heat Only Control with --

Dwell Timer ------------------51 4-2 Cool Only Control -----------52 4-3 Heat-Cool Control -----------53

Appendix

A-1 Error Codes ------------------76 A-2 Warranty ----------------------77

Chapter 7 Modbus Communications---66

Chapter 7 Modbus

Communications

7-1 Functions Supported -------66 7-2 Exception Responses -----68 7-3 Parameter Table -------------69 7-4 Data Conversion ------------73

7-5 Communication Examples-73

Figures & TablesFigures & Tables

Page No

Figure 1.1 Fuzzy Control Advantage ----------------------------------------------------------------6 Figure 1.2 Programming Port Overview ------------------------------------------------------------9

Figure 1.4 Display of Initial Stage -------------------------------------------------------------------11 Figure 2.1 Mounting Dimensions -------------------------------------------------------------------21 Figure 2.2 Lead Termination for C91 -------------------------------------------------------------23 Figure 2.3 Lead Termination for C21---------------------------------------------------------------23 Figure 2.4 Rear Terminal Connection for C21--------------------------------------------------23 Figure 2.5 Rear Terminal Connection for C91----- --------------------------------------------24 Figure 2.7 Power Supply Connections ------------------------------------------------------------25 Figure 2.8 Sensor Input Wiring ----------------------------------------------------------------------26 Figure 2.9 Output 1 Relay or Triac (SSR) to Drive Load ---------------------------------------26 Figure 2.10 Output 1 Relay or Triac (SSR) to Drive Contactor -------------------------------27 Figure 2.11 Output 1 Pulsed Voltage to Drive SSR ---------------------------------------------27 Figure 2.12 Output 1 Linear Current ---------------------------------------------------------------28 Figure 2.13 Output 1 Linear Voltage ---------------------------------------------------------------28 Figure 2.14 Output 2 Relay or Triac (SSR) to Drive Load -------------------------------------28 Figure 2.15 Output 2 Relay or Triac (SSR) to Drive Contactor -------------------------------29 Figure 2.16 Output 2 Pulsed Voltage to Drive SSR ---------------------------------------------29 Figure 2.17 Output 2 Linear Current ---------------------------------------------------------------29 Figure 2.18 Output 2 Linear Voltage --------------------------------------------------------------30 Figure 2.19 Alarm Output to Drive Load ----------------------------------------------------------30 Figure 2.20 Alarm Output to Drive Contactor ----------------------------------------------------30 Figure 2.21 RS-485 Wiring ---------------------------------------------------------------------------31 Figure 2.22 RS-232 Wiring ---------------------------------------------------------------------------32 Figure 2.23 Configuration of RS-232 Cable ------------------------------------------------------32 Figure 3.1 Conversion Curve for Linear Type Process Value ---------------------------------34 Figure 3.2 Heat Only ON-OFF Control ------------------------------------------------------------35 Figure 3.3 Output 2 Deviation High Alarm --------------------------------------------------------38 Figure 3.4 Output 2 Process Low Alarm ----------------------------------------------------------38 Figure 3.5 RAMP Function ---------------------------------------------------------------------------41 Figure 3.6 Dwell Timer Function --------------------------------------------------------------------42 Figure 3.7 PV Shift Application ----------------------------------------------------------------------43 Figure 3.8 Filter Characteristics ---------------------------------------------------------------------44 Figure 3.9 Effects of PID Adjustment -------------------------------------------------------------49 Figure 4.1 Heat Control Example -------------------------------------------------------------------51 Figure 4.2 Cooling Control Example ---------------------------------------------------------------52 Figure 4.3 Heat-Cool Control Example ------------------------------------------------------------53 Figure 5.1 RTD Calibration ---------------------------------------------------------------------------57 Figure 5.2 Cold Junction Calibration Setup ------------------------------------------------------58

Table 1.1 Display Form of Characters -------------------------------------------------------------11 Table 3.1 Heat-Cool Control Setup Value ---------------------------------------------------------34 Table 3.2 PID Adjustment Guide --------------------------------------------------------------------48 Table A.1 Error Codes and Corrective Actions --------------------------------------------------66

Figure 1.3 Front Panel Description -----------------------------------------------------------------11

UM0C911B4

Chapter 1 OverviewChapter 1 Overview

1-1 General1-1 General

The Fuzzy Logic plus PID microprocessor-based controller series, incorporate a bright, easy to read 4-digit LED display, indicating process value or set point value. The Fuzzy Logic technology enables a process to reach a predetermined set point in the shortest time, with the minimum of overshoot during power-up or external load disturbance.

C21 is a 1/32 DIN size panel mount controller. C91 is a 1/16 DIN size panel mount controller. These units are powered by 11-26 or 90-250

VDC/VAC supply, incorporatinga2amp.controlrelayoutput as standard. The second output can be used as cooling control, an alarm or dwell timer. Both outputs can select triac, 5V logic output, linear current or linear voltage to drive external device. There are six types of alarm plus a dwell timer can be configured for the second output.The units are fully programmable for PT100 and thermocouple types J,K, T, E, B, R, S, N, L with no need to modify the unit. The input signal is digitized by using a 18-bit A to D converter. Its fast sampling rate allows the unit to control fast processes.

Digital communications RS-485 or RS-232 ( for C21, C91) are available as an additional option. These options allow the units to be integrated with supervisory control system and software.

A programming port is available for automatic configuration, calibration and testing without the need to access the keys on front panel.

By using proprietary Fuzzy modified PID technology, the control loop will minimize the overshoot and undershoot in a shortest time. The following diagram is a comparison of results with and without Fuzzy technology.

UM0C911B 5

UM0C911A6

PID control with properly tuned PID + Fuzzy control

Warm Up

Load Disturbance

Set point

Temperature

Time

High AccuracyHigh Accuracy

The series are manufactured with custom designed ASIC(Application Specific Integrated Circuit ) technology which contains a 18-bit A to D converter for high resolution measurement ( true 0.1 F resolution for thermocouple and PT100 ) and a 15-bit D to A converter for linear current or voltage control output. The ASIC technology provides improved operating performance, low cost, enhanced reliability and higher density.

Fast Sampling Rate

The sampling rate of the input A to D converter reaches 5 times/second. The fast sampling rate allows this series to control fast processes.

Fuzzy ControlFuzzy Control

The function of Fuzzy control is to adjust PID parameters from time to time in order to make manipulation output value more flexible and adaptive to various processes. The results is to enable a process to reach a predetermined set point in the shortest time, with the minimum of overshoot and undershoot during power-up or external load disturbance.

Digital Communication

The units are equipped with RS-485 or RS-232 interface card to provide digital communication. By using the twisted pair wires there are at most 247 units can be connected together via RS-485 interface to a host computer.

Figure 1.1 Fuzzy Control Advantage

Figure 1.1 Fuzzy

Control

Advantage

Programming PortProgramming Port

A programming port is used to connect the unit to a hand-held programmer or a PC for quick configuration, also can be connected to an ATE system for automatic testing & calibration.

Auto-tune

The auto-tune function allows the user to simplify initial setup for a new system. A clever algorithm is provided to obtain an optimal set of control parameters for the process, and it can be applied either as the process is warming up ( cold start ) or as the process has been in steady state ( warm start ).

Lockout Protection

According to actual security requirement, one of four lockout levels can be selected to prevent the unit from being changed abnormally.

Bumpless Transfer

Bumpless transfer allows the controller to continue to control by using its previous value as the sensor breaks. Hence, the process can be well controlled temporarily as if the sensor is normal.

Soft-start Ramp

The ramping function is performed during power up as well as any time the set point is changed. It can be ramping up or ramping down. The process value will reach the set point with a predetermined constant rate.

Digital FilterDigital Filter

A first order low pass filter with a programmable time constant is used to improve the stability of process value. This is particularly useful in certain application where the process value is too unstable to be read.

UM0C911A 7

UM0C911D

Power InputPower Input

4: 90 - 250 VAC,

47-63 HZ

5: 11 - 26 VAC or VDC,

SELV, Limited Energy

4: 90 - 250 VAC,

47-63

11 - 26 VAC or VDC,

SELV, Limited Energy

0: None 1: RS-485 interface (for C21) 2: RS-232 interface (for C21) 3: Retransmit 4-20 mA / 0-20

mA (for C21)

4: Retransmit 1-5V /0-5V

(for C21) 5: Retransmit 0-10V (for C21) 9: Special order

0: None 1:

RS-485 interface (for C21)

RS-232 interface (for C21)

Retransmit 4-20 mA / 0-20

(for C21)

Retransmit 1-5V /0-5V

(for

C21)

Retransmit 0-10V (for C21)

Special order

Communications

0: None 1: Relay rated 2A/240VAC 2: Pulsed voltage to drive SSR,

5V/30mA 3: Isolated4-20mA/0-20mA 4: Isolated1-5V/0-5V 5: Isolated0-10V 6: Triac output 1A / 240VAC,SSR C: Pulsed voltage to drive SSR,

14V/40mA 9: Special order

0: None 1:

Relay rated 2A/240VAC

Pulsed voltage to drive SSR,

5V/30mA 3:

Isolated 4 - 20mA / 0 - 20mA

Isolated 1 - 5V / 0 - 5V

Isolated 0 - 10V

Triac output 1A / 240VAC,SSR

Pulsed voltage to drive SSR,

14V/40mA 9:

Special order

Output 1Output 1

1: Standard Input

Thermocouple: J, K, T, E, B,

R, S, N, L

RTD: PT100 DIN, PT100 JIS 2:0-60mA 3:0-1V 4:0-5V 5:1-5V 6:4-20mA 7:0-20mA 8:0-10V 9: Special Order

1: Standard Input

Thermocouple:

J, K, T, E, B,

S, N, L

RTD:

PT100 DIN, PT100 JIS

0 - 60 mA 3:

0 - 1V 4:

0 - 5V 5:

1 - 5V 6:

4 - 20 mA 7:

0 - 20 mA 8:

0 - 10 V 9:

Special Order

Signal InputSignal Input

C21C91-

0: None 1: Form A relay 2A/240VAC 2: Pulsed voltage to

drive SSR, 5V / 30mA 3: Isolated4-20mA/0-20mA 4: Isolated1-5V/0-5V 5: Isolated0-10V 6: Triac output, 1A / 240VAC, SSR 7: Isolated 20V/25mA transducer

power supply

8: Isolated 12V/40mA transducer

power supply

9: Isolated 5V/80mA transducer

power supply A: RS-485 interface (for C91) C: Pulsed voltage to drive SSR,

14V/40mA D: Retransmit 4-20mA/0-20mA

(for C91) E: Retransmit 1-5V/0-5V (for C91) F: Retransmit 0-10V (for C91) B: Special order

None

Form A relay 2A/240VAC

Pulsed voltage to drive

SSR, 5V / 30mA

Isolated 4 - 20mA / 0 - 20mA

Isolated 1 - 5V / 0 - 5V

Isolated 0 - 10V

Triac output, 1A / 240VAC, SSR

Isolated 20V/25mA transducer

power

supply

Isolated 12V/40mA transducer

power

supply

Isolated 5V/80mA transducer

power

supply

RS-485 interface (for C91)

Pulsed voltage to drive SSR,

14V/40mA

Retransmit 4-20mA/0-20mA

(for

C91)

Retransmit 1-5V/0-5V (for C91)

Retransmit 0-10V (for C91)

Special order

Output 2Output 2

1-2 Ordering Code1-2 Ordering Code

0: Red color 1: Green color

0: Red color 1:

Green color

Display ColorDisplay Color

OM94-6 = Isolated 1A / 240VAC Triac Output Module ( SSR ) OM94-7 = 14V / 40 mA SSR Drive Module OM96-3 = Isolated 4 - 20 mA /0-20mAAnalog Output Module OM96-4 = Isolated1-5V/0-5VAnalog Output Module OM96-5 = Isolated 0 -10V Analog Output Module CM94-1 = Isolated RS-485 Interface Module for C21 CM94-2 = Isolated RS-232 Interface Module for C21 CM94-3 = Isolated 4 - 20 mA /0-20mARetrans Module for C21 CM94-4 = Isolated1-5V/0-5VRetrans Module for C21 CM94-5 = Isolated 0 -10V Retrans Module for C21 CM96-1 = Isolated RS-485 Interface Module for C91 DC94-1 = Isolated 20V/25mA DC Output Power Supply DC94-2 = Isolated 12V/40mA DC Output Power Supply DC94-3 = Isolated 5V/80mA DC Output Power Supply CC94-1 = RS-232 Interface Cable ( 2M ) CC91-1 = Programming port cable for C21 CC91-2 = Programming port cable for C91

OM94-6 = Isolated 1A / 240VAC Triac Output Module ( SSR ) OM94-7

= 14V / 40 mA SSR Drive Module

OM96-3

= Isolated 4 - 20 mA / 0 - 20 mA Analog Output Module

OM96-4

= Isolated 1 - 5V / 0 - 5V Analog Output Module

OM96-5

= Isolated 0 -10V Analog Output Module

CM94-1

= Isolated RS-485 Interface Module for C21

CM94-2

= Isolated RS-232 Interface Module for C21

CM94-3

= Isolated 4 - 20 mA / 0 - 20 mA Retrans Module for C21

CM94-4

= Isolated 1 - 5V / 0 - 5V Retrans Module for C21

CM94-5

= Isolated 0 -10V Retrans Module for C21

CM96-1

= Isolated RS-485 Interface Module for C91

DC94-1

= Isolated 20V/25mA DC Output Power Supply

DC94-2

= Isolated 12V/40mA DC Output Power Supply

DC94-3

= Isolated 5V/80mA DC Output Power Supply

CC94-1

= RS-232 Interface Cable ( 2M )

CC91-1

= Programming port cable for C21

CC91-2

= Programming port cable for C91

Accessories

SNA10B = Smart Network Adaptor for BC-Net software, which

converts 255 channels of RS-485 or RS-422 to RS-232 network.

SNA10B = Smart Network Adaptor for BC-Net software, which

converts

255 channels of RS-485 or RS-422 to RS-232

network.

SNA10A = Smart Network Adaptor for third party software, which

converts 255 channels of RS-485 or RS-422 to RS-232 Network.

SNA10A = Smart Network Adaptor for third party software, which

converts

255 channels of RS-485 or RS-422 to RS-232

Network.

Related ProductsRelated Products

BC-Set = Configuration SoftwareBC-Set = Configuration Software

SNA12A = Smart Network Adaptor for programming port to RS-232

interface

SNA12A = Smart Network Adaptor for programming port to RS-232

interface

UM0C911C 8-1

1-3 Programming Port1-3 Programming Port

Figure 1.2 Programming Port OverviewFigure 1.2 Programming Port Overview

A special connector can be used to touch the programming port which is connected to a PC for automatic configuration, also can be connected to an ATE system for automatic calibration and testing.

The programming port is used for off-line automatic setup and testing procedures only. Don't attempt to make any connection to these pins when the unit is used for a normal control purpose.

UM0C911B

Front Panel

Rear Terminal

Access Hole

1 3

C21

Open the housing TopviewofC91

Programming Port

control board

Power board

pin 1

1- 4 Keys and Displays1- 4 Keys and Displays

KEYPAD OPERATIONKEYPAD OPERATION

SCROLL KEY :

UP KEY :

DOWN KEY :

RESET KEY :

ENTER KEY :

This key is used to select a parameter to be viewed or adjusted.

This key is used to increase the value of selected parameter.

This key is used to decrease the value of selected parameter.

This key is used to:

1. Revert the display to display the process value or set point value (if DISP is set with SP1 for C21).

2. Reset the latching alarm, once the alarm condition is removed.

3. Stop the manual control mode , auto-tuning mode and calibration mode.

4. Clear the message of communication error and auto-tuning error.

5. Restart the dwell timer when the dwell timer has been time out.

6. Enter the manual control menu during failure mode occurs.

Press for 5 seconds or longer .

Press for 5 seconds to:

1. Ener setup menu. The display shows .

2. Enter manual control mode during manual control mode or is selected.

3. Enter auto-tuning mode during auto-tuning mode AT(for C91) or (for C21) is selected.

4. Perform calibration to a selected parameter during the calibration procedure. Press for 4.2 seconds to select calibration mode.

SCROLL KEY :

KEY :

DOWN

KEY :

RESET

KEY :

ENTER

KEY :

UM0C911C

press for C91 and C92, press for C21press for C91 and C92, press for C21

: Confused Character: Confused Character

Table 1.1 Display Form of CharactersTable 1.1 Display Form of Characters

Figure 1.3 Front Panel DescriptionFigure 1.3 Front Panel Description

UM0C911C

The left diagram shows program no. 34 for C91 with version 24. The program no. for C21 is 33.

Display program code of the product for 2.5 seconds.

Figure 1.4 Display of Initial Stage

Figure 1.4 Display

of Initial Stage

Output 2 Indicator

Output 1 Indicator

3 Silicone Rubber Buttons

for ease of control setup

and set point adjustment.

3 Silicone Rubber Buttons

for

ease of control setup

and

set point adjustment.

C21

4 Buttons for ease of control setup and set point adjustment.

Output 2 Indicator

Process Unit Indicator

Manual Mode Indicator

Auto-tuning Indicator

MAN

SP2SP1

C91

OP1

OP2

Output 1 Indicator

Deviation Indicator

MAN

SP2SP1

C91

OP1

OP2

1- 5 Menu Overview1- 5 Menu Overview

SP1

SP2

ADLO

ADHI

RTDL

CJLO

RTDH

CJHI

7.4 sec.

User menu *1User menu *1

Setup menu*1Setup menu*1

Calibration ModeCalibration Mode

Press for 5 seconds to perform calibration.

UM0C911C

Apply these modes will break the control loop and change some of the previous setting data. Make sure that if the system is allowable to apply these modes.

The flow chart shows a complete listing of all parameters. For actual application the number of available parameters depends on setup conditions, and should be less than that shown in the flow chart.

Release , press again for 2 seconds or longer (but not longer than 3 seconds), then release to enter the calibration menu.

*1:

*2:

2 sec.

LOCK

INPT UNIT

INLO

SP1L

INHI

SP1H SHIF

FILT

DISP

OUT1

O1TY

O1FT

O1HY

CYC1

OFST RAMP

RR OUT2 O2TY

O2FT O2HY CYC2

CPB

ALMD

COMM

ADDR BAUD DATA

PARI STOP RELO REHI SEL1 SEL2 SEL3 SEL4 SEL5 SEL6 SEL7 SEL8

6.2 sec.

Value

5 sec.

Manual Mode

Auto-tuning Mode

SP1

SP2

MAN

C91

User Menu *1User Menu *1

(DISP=PV) (DISP=SP1)

SP1

SP2

A-T

Manual Mode

5 sec.

Auto-tuning Mode

C21

SP1

Value

Manual Mode

5 sec.

INPT

UNIT

DP PB

CYC1

ADDR

Value

INPT

UNIT

DP PB

CYC1

ADDR

Value

5sec.

1-6 Parameter Descriptions1-6 Parameter Descriptions

Parameter Notation

Default Value

Select parameters to be locked

0 : No parameter

is locked

1 : Setup data are

locked

2 : Setup data and

User data except Set point are locked

3 : All data are locked

LOCK

Parameter Description

Range

: :

T type thermocouple

E type thermocouple

B type thermocouple

R type thermocouple

S type thermocouple

J type thermocouple

K type thermocouple

N type thermocouple

L type thermocouple

PT 100 ohms DIN curve

PT 100 ohms JIS curve

4 - 20 mA linear current input

0 - 20 mA linear current input

0 - 1V linear voltage input

0 - 60 mV linear millivolt input

INPT

Input sensor selection

UM0C911A

(0)

SP2

Set point for output 2 when output 2 performs alarm function or dwell timer

Low: -19999 High :45536

10.0 C (18.0 F)BB

SP1

Set point for output 1

Low: SP1L High :SP1H

25.0 C (77.0 F)BB

0 - 5V linear voltage

input

1 - 5V linear voltage

input

0 - 10V linear voltage

input

Parameter Notation

Default Value

Parameter Description

Range

UNIT

Input unit selection

Degree C unit

Degree F unit

Process unit

(1)

Decimal point selection

No decimal point

1 decimal digit

2 decimal digits

3 decimal digits

INLO

INHI

Input low sale value

Input high scale value

-19999

INLO+50

45486

45536

Low:

High:

-17.8 C (0F)

SHIF

PV shift (offset) value

-200.0 C

(-360.0 F)LL

0.0

Low:

200.0 C

( 360.0 F)LL

High:

93.3 C

(200.0 F)

FILT

Filter damping time constant of PV

0 second time

constant

0.2 second time constant

0.5 second time

constant 1 second time

constant 2 seconds time

constant 5 seconds time

constant 10 seconds time

constant 20 seconds time

constant 30 seconds time

constant 60 seconds time

constant

UM0C911A

SP1L

Low limit of set point value

-19999

High:

-17.8 C (0 F)

SP1H

High limit of set point value

SP1L

High:

537.8 C

(1000 F)

45536

Low:

45536

Low:

Parameter Notation

Default Value

Parameter Description

Range

O1TY

Output 1 signal type

: Relay output

: Solid state relay

drive output

: Solid state relay

output

: 4-20 mA current

module

0-20mAcurrent

module

0 - 1V voltage module

0 - 5V voltage module

1 - 5V voltage module

0 - 10V voltage module

O1FT

Output 1 failure transfer mode

Select BPLS ( bumpless transfer ) or 0.0 ~ 100.0 % to continue output 1 control function as the unit fails, or select OFF (0) or ON (1) for ON-OFF control.

O1HY

Output 1 ON-OFF control hysteresis

Low: 0.1 High: 50.0 C(90.0 F)BB

0.1 C

(0.2 F)LL

CYC1

Output 1 cycle time

Low: 0.1 High: 90.0 sec.

18.0

Proportional band value

10.0 C

(18.0 F)LL

Low: 0

500.0 C

(900.0 F)LL

High:

Integral time value

Derivative time value

100

25.0

Low:

3600 sec

360.0 sec

High:

OFST Offset value for P control

Low: 0

High: 100.0 %

25.0

UM0C911D

Output 1 function

OUT1

Reverse (heating ) control action

Direct (cooling) control action

DISP

Normal display selection

: Display process

value normally

: Display set point 1

value normally

Ramp rate

0.0

Low: 0

500.0 C

(900.0 F)LL

High:

Parameter Notation

Default Value

Parameter Description

Range

OUT2

Output 2 function

0 : Output 2 No Function

2 : Deviation High Alarm

3 : Deviation Low Alarm

6 : Process High Alarm

7 : Process Low Alarm

8 : Cooling PID Function

O2TY

Output 2 signal type

Relay output

Solid state relay drive output

Solid state relay output

4 - 20 mA current module

0 - 20 mA current module

0 - 1V voltage module

0 - 5V voltage module

1 - 5V voltage module

0 - 10V voltage module

O2FT

Select BPLS ( bumpless transfer ) or 0.0 ~ 100.0 % to continue output 2 control function as the unit fails, or select ON (0) or OFF (1) for alarm and dwell timer function.

Output 2 failure transfer mode

UM0C911A

RAMP

Ramp function selection

0 : No Ramp Function

2 : Use unit/hour as

Ramp Rate

1 : Use unit/minute as

Ramp Rate

1 : Dwell timer action

4 : Deviation band out of

band Alarm

5 : Deviation band in

band Alarm

Parameter Notation

Default Value

Parameter Description

Range

ALMD

Alarm operation mode

: Normal alarm action

: Latching alarm action

: Hold alarm action

: Latching & actionHold

COMM

Communication

function

0 : No communication

1 : Modbus RTU mode

protocol

UM0C911C

Heating-cooling dead band (negative value= overlap)

Low: -36.0

High: 36.0 %

CPB

Cooling proportional band value

100

Low: 50

High: 300 %

CYC2

Output 2 cycle time

Low: 0.1

High: 90.0 sec.

18.0

O2HY

Output 2 hysteresis value when output 2 performs alarm function

Low: 0.1

High:

50.0 C

(90.0 F)LL

0.1 C

(0.2 F)LL

BAUD

Baud rate of digital communication

2.4 Kbits/s baud rate

4.8 Kbits/s baud rate

9.6 Kbits/s baud rate

14.4 Kbits/s baud rate

19.2 Kbits/s baud rate

28.8 Kbits/s baud rate

38.4 Kbits/s baud rate

ADDR

Address assignment of digital communication

Low: 1 High: 255

:4-20mA retransmission

output

:0-20mA retransmission

output

:0-5V retransmission

output

:1-5V retransmission

output

:0-10V retransmission

output

Parameter Notation

Default Value

Parameter Description

Range

DATA

Data bit count of digital communication

0 : 7 data bits

1 : 8 data bits

PARI

Parity bit of digital communication

0 : Even parity

1 : Odd parity

2 : No parity bit

STOP

Stop bit count of digital communication

0 : One stop bit

1 : Two stop bits

UM0C911C

SEL1

Select 1'st parameter for user menu

:No parameter selected

:LOCK is put ahead

:INPT is put ahead

:UNIT is put ahead

:SHIF is put ahead

:PB is put ahead

:TI is put ahead

:DP is put ahead

:TD is put ahead

:OFST is put ahead

:CYC2 is put ahead

:ADDR is put ahead

:RR is put ahead

:O2HY is put ahead

:CPB is put ahead

:DB is put ahead

:CYC1 is put ahead

:O1HY is put ahead

RELO

Retransmission low scale value

Low: -19999

High: 45536

0.0 C

(32.0 F)LL

REHI

Retransmission high scale value

Low: -19999

High: 45536

100.0 C

(212.0 F)LL

Parameter Notation

Default Value

Parameter Description

Range

SEL2

Select 2'nd parameter for user menu

Same as SEL1

SEL3

Select 3'rd parameter for user menu

Same as SEL1

SEL4

Select 4'th parameter for user menu

Same as SEL1

SEL5

Select 5'th parameter for user menu

Same as SEL1

SEL6

Select 6'th parameter for user menu

Same as SEL1

SEL7

Select 7'th parameter for user menu

Same as SEL1

SEL8

Select 8'th parameter for user menu

Same as SEL1

UM0C911A

Chapter 2 InstallationChapter 2 Installation

Dangerous voltages capable of causing death are sometimes present in this instrument. Before installation or beginning any cleaning or troubleshooting procedures the power to all equipment must be switched off and isolated. Units suspected of being faulty must be disconnected and removed to a properly equipped workshop for testing and repair. Component replacement and internal adjustments must be made by a qualified maintenance person only.

Dangerous voltages capable of causing death are sometimes present

in this instrument. Before installation or beginning any

cleaning

or troubleshooting procedures the power to all equipment

must

be switched off and isolated. Units suspected of being faulty

must

be disconnected and removed to a properly equipped

workshop

for testing and repair. Component replacement and

internal

adjustments must be made by a qualified maintenance

person

only.

Do not use this instrument in areas under hazardous conditions such as excessive shock, vibration, dirt, moisture, corrosive gases or oil. The ambient temperature of the areas should not exceed the maximum rating specified in Chapter 6.

Do not use this instrument in areas under hazardous conditions

such as excessive shock, vibration, dirt, moisture,

corrosive

gases or oil. The ambient temperature of the areas should

not

exceed the maximum rating specified in Chapter 6.

2-2 Mounting2-2 Mounting

2-1 Unpacking2-1 Unpacking

Upon receipt of the shipment remove the unit from the carton and inspect the unit for shipping damage. If any damage due to transit , report and claim with the carrier. Write down the model number, serial number, and date code for future reference when corresponding with our service center. The serial number (S/N) and date code (D/C) are labeled on the box and the housing of control.

Upon receipt of the shipment remove the unit from the carton and inspect

the unit for shipping damage.

any damage due to transit , report and claim with the carrier.

Write

down the model number, serial number, and date code for

future

reference when corresponding with our service center. The

serial

number (S/N) and date code (D/C) are labeled on the box and

the

housing of control.

Make panel cutout to dimension shown in Figure 2.1.Make panel cutout to dimension shown in Figure 2.1. Take the mounting clamp away and insert the controller into

panel cutout. Install the mounting clamp back.

Ta k e the mounting clamp away and insert the controller into panel

cutout. Install the mounting clamp back.

UM0C911B

Remove stains from this instrument using a soft, dry cloth. Don't use harsh chemicals, volatile solvent such as thinner or strong detergents to clean the instrument in order to avoid deformation or discoloration.

Remove stains from this instrument using a soft, dry cloth. Don't

use harsh chemicals, volatile solvent such as thinner or strong

detergents

to clean the instrument in order to avoid deformation or

discoloration.

This instrument is protected throughout by -- . To minimize the possibility of fire or shock hazards, do not expose this instrument to rain or excessive moisture.

Double InsulationThis instrument is protected throughout by -- .

minimize the possibility of fire or shock hazards, do not expose

this

instrument to rain or excessive moisture.

Double

Insulation

C21

C91

Figure 2.1 Mounting DimensionsFigure 2.1 Mounting Dimensions

98.0mm

Panel

10.0mm

12.5mm

SCREW

MOUNTING CLAMP

22.2

+0.3

+0.5

Panel

86 mm

94 mm

45 mm

UM0C911B

2 - 3 Wiring Precautions2 - 3 Wiring Precautions

Before wiring, verify the label for correct model number and options. Switch off the power while checking.

Care must be taken to ensure that maximum voltage rating specified on the label are not exceeded.

It is recommended that power of these units to be protected by fuses or circuit breakers rated at the minimum value possible.

All units should be installed inside a suitably grounded metal enclosure to prevent live parts being accessible from human hands and metal tools.

All wiring must conform to appropriate standards of good practice and local codes and regulations. Wiring must be suitable for voltage, current, and temperature rating of the system.

Beware not to over-tighten the terminal screws. The torque should not exceed 1 N-m ( 8.9 Lb-in or 10.2 KgF-cm )

Unused control terminals should not be used as jumper points as they may be internally connected, causing damage to the unit.

Verify that the ratings of the output devices and the inputs as specified in Chapter 6 are not exceeded.

Except the thermocouple wiring, all wiring should use stranded copper conductor with maximum gauge 18 AWG.

Before wiring, verify the label for correct model number and options.

Switch off the power while checking.

Care

must be taken to ensure that maximum voltage rating

specified

on the label are not exceeded.

is recommended that power of these units to be protected by

fuses

or circuit breakers rated at the minimum value possible.

All

units should be installed inside a suitably grounded metal

enclosure

to prevent live parts being accessible from human

hands

and metal tools.

All

wiring must conform to appropriate standards of good practice

and

local codes and regulations. Wiring must be suitable for

voltage,

current, and temperature rating of the system.

Beware

not to over-tighten the terminal screws. The torque should

not exceed

1 N-m ( 8.9 Lb-in or 10.2 KgF-cm )

Unused

control terminals should not be used as jumper points as

they

may be internally connected, causing damage to the unit.

Verify

that the ratings of the output devices and the inputs as

specified

in Chapter 6 are not exceeded.

Except

the thermocouple wiring, all wiring should use stranded

copper

conductor with maximum gauge 18 AWG.

UM0C911B

Figure 2.3 Lead Termination for C21

Figure 2.3 Lead

Termination for C21

7.0mm max.

3.2mm min.

Figure 2.4 Rear Terminal Connection for C21

Figure 2.4 Rear

Terminal Connection

for

C21

Figure 2.2 Lead Termination for C91

Figure 2.2 Lead

Termination for C91

4.5 ~7.0 mm

0.18" ~0.27"

2.0mm

0.08" max.

UM0C911B

RTD

COM

TC+

PTB

PTA

TXD RXD

90-250 VAC

47-63 Hz,10VA

OP2

2A/240 VAC 2A/240 VAC

OP1

CAT.II

8 9

12 13 14

V+,mA+

PTB

V,mA

TX1 TX2

RS-485 or

RS-232

50 C max. Air ambient Use copper conductors (except on T/C input )

RE+ RE

RETRANSMISSION

Figure 2.5 Rear Terminal Connection for C91

Figure 2.5 Rear

Terminal Connection

for

C91

UM0C911D



! " #

RE ,TX2

RE+,TX1

RTD

PTA

TC+

$ % & '



OP2, RS-485

or Retransmission

OP1

CAT.II

50 C max. air ambient Use copper conductors ( except on T/C input )

2 - 4 Power Wiring2 - 4 Power Wiring

The controller is supplied to operate at 11-26 VAC / VDC or 90-250 VAC. Check that the installation voltage corresponds with the power

rating indicated on the product label before connecting power to the controller. Near the controller a fuse and a switch rated at

2A/250VAC should be equiped as shown in the following diagram.

The controller is supplied to operate at 11-26 VAC / VDC or 90-250 VAC.

Check that the installation voltage corresponds with the power

rating

indicated on the product label before connecting power to

the

controller. Near the controller a fuse and a switch rated at

2A/250VAC

should be equiped as shown in the following diagram.

90 250 VAC or 11 26 VAC / VDC

Fuse

Figure 2.7 Power Supply ConnectionsFigure 2.7 Power Supply Connections

This equipment is designed for installation in an enclosure which provides adequate protection against electric shock. The enclosure must be connected to earth ground.

Local requirements regarding electrical installation should be rigidly observed. Consideration should be given to prevent from unauthorized person access to the power terminals.

This equipment is designed for installation in an enclosure which

provides adequate protection against electric shock. The

enclosure

must be connected to earth ground.

Local

requirements regarding electrical installation should be rigidly

observed.

Consideration should be given to prevent from

unauthorized

person access to the power terminals.

1 2

2-5 Sensor Installation Guidelines2-5 Sensor Installation Guidelines

Proper sensor installation can eliminate many problems in a control system. The probe should be placed so that it can detect any temperature change with minimal thermal lag. In a process that requires fairly constant heat output, the probe should be placed closed to the heater. In a process where the heat demand is variable, the probe should be closed to the work area. Some experiments with probe location are often required to find this optimum position.

In a liquid process, addition of a stirrer will help to eliminate thermal lag. Since the thermocouple is basically a point measuring device, placing more than one thermocouple in parallel can provide an average temperature readout and produce better results in most

air heated processes.

Proper sensor installation can eliminate many problems in a control system.

The probe should be placed so that it can detect any

temperature

change with minimal thermal lag. In a process that

requires

fairly constant heat output, the probe should be placed

closed

to the heater. In a process where the heat demand is variable,

the

probe should be closed to the work area. Some experiments with

probe

location are often required to find this optimum position.

a liquid process, addition of a stirrer will help to eliminate thermal

lag.

Since the thermocouple is basically a point measuring device,

placing

more than one thermocouple in parallel can provide an

average

temperature readout and produce better results in most

air

heated processes.

C21

6 7

C91

UM0C911B

2A/250VAC

Proper sensor type is also a very important factor to obtain precise measurements. The sensor must have the correct temperature range to meet the process requirements. In special processes the sensor might need to have different requirements such as leak-proof, antivibration, antiseptic, etc.

Standard sensor limits of error are 4 degrees F ( 2 degrees C ) or 0.75% of sensed temperature (half that for special ) plus drift caused by improper protection or an over-temperature occurrence. This error is far greater than controller error and cannot be corrected on the sensor except by proper selection and replacement.

Proper sensor type is also a very important factor to obtain precise measurements.

The sensor must have the correct temperature range

meet the process requirements. In special processes the sensor

might

need to have different requirements such as leak-proof, anti-

vibration,

antiseptic, etc.

Standard

sensor limits of error are 4 degrees F (2degrees C )

0.75% of sensed temperature (half that for special ) plus drift

caused

by improper protection or an over-temperature occurrence.

This

error is far greater than controller error and cannot be corrected

the sensor except by proper selection and replacement.

2-6 Sensor Input Wiring2-6 Sensor Input Wiring

83 94

10 5

PTA

TC+, V+ PTB, mA+

TC+, V+ PTB,

mA+

TC-, VPTB, mA-

TC-, VPTB,

mA-

RTD

TC V mA RTD

Figure 2.8 Sensor Input WiringFigure 2.8 Sensor Input Wiring

2-7 Control Output Wiring2-7 Control Output Wiring

5 6

LOAD

120V/240VAC Mains Supply

Figure 2.9 Output 1 Relay or Triac (SSR) to Drive Load

Figure 2.9 Output

1 Relay or Tri ac (SSR) to Drive Load

C21 C91

UM0C911B 26

120V /240V Mains Supply

120V /240V Mains

Supply

No Fuse Breaker

Three Phase Heater Power

Three Phase Delta Heater Load

Contactor

5 6

Figure 2.10 Output 1 Relay or Triac (SSR) to Drive Contactor

Figure 2.10 Output

1 Relay or Tri ac (SSR) to Drive Contactor

Load

120V /240V Mains Supply

120V /240V Mains

Supply

SSR

30mA / 5V

Pulsed Voltage

30mA / 5V

Pulsed Voltage

Internal CircuitInternal Circuit

Figure 2.11 Output 1 Pulsed Voltage to Drive SSRFigure 2.11 Output 1 Pulsed Voltage to Drive SSR

C21 C91

5 6

C21 C91

UM0C911B

Figure 2.12 Output 1 Linear CurrentFigure 2.12 Output 1 Linear Current

Figure 2.13 Output 1 Linear VoltageFigure 2.13 Output 1 Linear Voltage

Figure 2.14 Output 2 Relay or Triac (SSR) to Drive Load

Figure 2.14 Output

2 Relay or Tri ac (SSR) to Drive Load

Maximum Load 500 ohms

Maximum Load 500

ohms

0-20mA, 4-20mA

0 - 20mA, 4

- 20mA

Load

5 6

C21 C91

0-1V, 0-5V 1-5V,0-10V

0 - 1V, 0 - 5V 1

- 5V, 0 - 10V

Minimum Load 10Kohms

Minimum Load 10

K ohms

Load

5 6

C21 C91

LOAD

120V/240VAC Mains Supply

3 4

C21 C91

UM0C911B 28

120V /240V Mains Supply

120V /240V Mains

Supply

No Fuse Breaker

Three Phase Heater Power

Three Phase Delta Heater Load

Contactor

Figure 2.15 Output 2 Relay or Triac (SSR) to Drive Contactor

Figure 2.15 Output

2 Relay or Tri ac (SSR) to Drive Contactor

Load

120V /240V Mains Supply

120V /240V Mains

Supply

SSR

30mA / 5V

Pulsed Voltage

30mA / 5V

Pulsed Voltage

Internal CircuitInternal Circuit

Figure 2.16 Output 2 Pulsed Voltage to Drive SSRFigure 2.16 Output 2 Pulsed Voltage to Drive SSR

Maximum Load 500 ohms

Maximum Load 500

ohms

0-20mA, 4-20mA

0 - 20mA, 4

- 20mA

Load

Figure 2.17 Output 2 Linear CurrentFigure 2.17 Output 2 Linear Current

3 4

C21 C91

3 4

2 1

C21 C91

3 4

C21 C91

UM0C911B

0-1V, 0-5V 1-5V,0-10V

0 - 1V, 0 - 5V 1

- 5V, 0 - 10V

Minimum Load 10Kohms

Minimum Load 10

K ohms

Load

Figure 2.18 Output 2 Linear VoltageFigure 2.18 Output 2 Linear Voltage

2-8 Alarm Wiring2-8 Alarm Wiring

LOAD

120V/240VAC Mains Supply

120V/240VAC Mains

Supply

Figure 2.19 Alarm Output to Drive LoadFigure 2.19 Alarm Output to Drive Load

Relay Output to Drive Contactor

Relay Output to Drive

Contactor

120V /240V Mains Supply

120V /240V Mains

Supply

No Fuse Breaker

Three Phase Heater Power

Three Phase Delta Heater Load

Contactor

Figure 2.20 Alarm Output to Drive ContactorFigure 2.20 Alarm Output to Drive Contactor

3 4

C21 C91

3 4

C21 C91

3 4

2 1

C21 C91

UM0C911B 30

2-9 Data Communication2-9 Data Communication

TX1

TX2

Terminator 220 ohms / 0.5W

Terminator 220

ohms / 0.5W

Max. 247 units can be linkedMax. 247 units can be linked

RS-232

SNA10A or SNA10B

RS-485 to RS-232 network adaptor

RS-485 to RS-232 network

adaptor

Twisted-Pair WireTwisted-Pair Wire

Figure 2.21 RS-485 WiringFigure 2.21 RS-485 Wiring

12 13

2 1

C21 C91

TX1

TX2

TX1

TX2

12 13

2 1

C21 C91

TX1

TX2

12 13

C21 C91

UM0C911B

RS-232

9-pin RS-232 port

Figure 2.22 RS-232 Wiring

Figure 2.22 RS-232

Wiring

CC94-1

TXD

RXD

COM

If you use a conventional 9-pin RS-232 cable instead of CC94-1, the cable must be modified according to the following circuit diagram.

If you use a conventional 9-pin RS-232 cable instead of CC94-1, the cable must

be modified according to the following circuit diagram.

TX1 RD

TX2 TD

COM

GND

Female DB-9Female DB-9

To DTE ( PC ) RS-232 PortTo DTE ( PC ) RS-232 Port

1 DCD 2RD 3TD 4DTR 5 GND 6DSR 7RTS 8CTS 9RI

1 DCD 2

DTR

GND

DSR

RTS

CTS

Figure 2.23 Configuration of RS-232 Cable

C21

12 13

TXD

RXD

COM

C21

12 13

UM0C911B 32

Chapter 3 ProgrammingChapter 3 Programming

3-1 Lockout3-1 Lockout

Press for 5 seconds and release to enter setup menu. Press to select the desired parameter. The display indicates the parameter symbol. Press or to view or adjust the value of the selected parameter.

There are four security levels can be selected by using LOCK parameter.

If is selected for LOCK, then no parameter is locked. If is selected for LOCK, then all setup data are locked. If is selected for LOCK, then all setup data as well as user data (refer to ) except set point are locked to prevent from being changed. If is selected for LOCK, then all parameters are locked to prevent from being changed.

NONE SET USER

section 1-5

ALL

NONE SET USER

section

1-5

ALL

3-2 Signal Input3-2 Signal Input

INPT:

Range:

UNIT:

Range:

DP:

Range:

INLO:

Selects the sensor type or signal type for signal input.

( thermocouple ) J_TC, K_TC, T_TC, E_TC, B_TC, R_TC

S_TC, N_TC, L_TC ( RTD ) PT.DN, PT.JS (linear ) 4-20, 0-20, 0-60, 0-1V, 0-5V, 1-5V, 0-10

Selects the process unit

C, F, PU( process unit ). If the unit is neither C nor F,

then selects PU.

Selects the resolution of process value.

( for T/C and RTD ) NO.DP, 1-DP

(for linear ) NO.DP, 1-DP, 2-DP, 3-DP

LL L L

Selects the low scale value for the linear type input.

INHI : Selects the high scale value for the linear type input.

INPT:

Range:

UNIT:

Range:

DP:

Range:

INLO: INHI

How to use INLO and INHI :How to use INLO and INHI :

If4-20mAisselected for INPT,let SL specifies the input signal low ( ie. 4 mA ), SH specifies the input signal high ( ie. 20 mA ), S specifies the current input signal value, the conversion curve of the process value is shown as follows :

UM0C911C

INHI

process value

INLO

SL SHS

input signal

Figure 3.1 Conversion Curve for Linear Type Process Value

Figure 3.1 Conversion

Curve for

Linear

Ty p e Process Value

Formula : PV = INLO + ( INHI INLO )Formula : PV = INLO + ( INHI INLO )

SSLS SL

SH SLSH SL

Example : A 4-20 mA current loop pressure transducer with range

0 - 15 kg/cm is connected to input, then perform the following setup :

Example : A 4-20 mA current loop pressure transducer with range

- 15 kg/cm is connected to input, then perform the

following

setup :

INPT=4-20 INLO=0.00 INHI = 15.00 DP = 2-DP Of course, you may select other value for DP to alter the resolution.

INPT = 4 - 20 INLO = 0.00 INHI

= 15.00 DP = 2-DP

course, you may select other value for DP to alter the

resolution.

3-3 Control Outputs3-3 Control Outputs

There are 4 kinds of control modes can be configured as shown in Table 3.1

Table 3.1

Table 3.1 Heat-Cool Control Setup ValueTable 3.1 Heat-Cool Control Setup Value

Control Modes

OUT1 OUT2 O1HY O2HY CPB

Heat only

REVR

Cool only

DIRT

Heat: PID Cool: ON-OFF

Heat: PID Cool: PID

REVR

DE.HI

COOL

: Don't care

:Adjust to met process

requirements

:Required if ON-OFF control

is configured

UM0C911A 34

Heat Only ON-OFF Control : Select REVR for OUT1, Set PB to 0, O1HY is used to adjust dead band for ON-OFF control, The output 1 hysteresis ( O1HY ) is enabled in case of PB=0.Theheat only on-off control function is shown in the following diagram :

Heat Only ON-OFF Control : Select REVR for OUT1, Set PB to 0, O1HY

is used to adjust dead band for ON-OFF control, The output 1

hysteresis

( O1HY ) is enabled in case of PB = 0 . The heat only

on-off

control function is shown in the following diagram :

SP1

SP1 O1HY

OFF

OUT1 Action

Dead band = O1HY

Time

Figure 3.2 Heat Only

ON-OFF Control

Figure 3.2 Heat Only

ON-OFF

Control

The ON-OFF control may introduce excessive process oscillation even if hysteresis is minimized to the smallest. If ON-OFF control is set ( ie. PB=0),TI,TD,CYC1,OFST, CYC2, CPB, DB will be hidden and have no function to the system. The auto-tuning mode and bumpless transfer will be disabled too.

Select REVR for OUT1, set TI to 0,

OFST is used to adjust the control offset ( manual reset ).

if PB is not equal to 0. OFST is measured by

% with range 0 - 100.0 %. In the steady state ( ie. process has been stabilized ) if the process value is lower than the set point a definite value, say 5 C, while 20 C is used for PB, that is lower 25 %,

Heat onlyP(orPD)control :

O1HY is

hidden OFST Function :

The ON-OFF control may introduce excessive process oscillation even if

hysteresis is minimized to the smallest. If ON-OFF control is set ( ie.

= 0 ), TI, TD, CYC1, OFST, CYC2, CPB, DB will be hidden and have

function to the system. The auto-tuning mode and bumpless

transfer

will be disabled too.

Select

REVR for OUT1, set TI to 0,

OFST

is used to adjust the control offset ( manual reset ).

PB is not equal to 0. OFST is measured by

with range 0 - 100.0 %. In the steady state ( ie. process has been

stabilized

) if the process value is lower than the set point a definite

value,

say 5C,while 20 C is used for PB, that is lower 25 %,

Heat

only P ( or PD ) control :

O1HY

hidden OFST

Function :

UM0C911A

then increase OFST 25 %, and vice versa. After adjusting OFST value, the process value will be varied and eventually, coincide with set point. Using the P control ( TI set to 0 ), the auto-tuning is disabled. Refer to section 3-12 " manual tuning " for the adjustment of PB and TD. Manual reset ( adjust OFST ) is not practical because the load may change from time to time and often need to adjust OFST repeatedly. The PID control can avoid this situation.

then increase OFST 25 %, and vice versa. After adjusting OFST value, the

process value will be varied and eventually, coincide with set point.

Using

the P control ( TI set to 0 ), the auto-tuning is disabled.

Refer

to section 3-12 " manual tuning " for the adjustment of PB and

TD.

Manual reset ( adjust OFST ) is not practical because the load may

change

from time to time and often need to adjust OFST repeatedly.

The

PID control can avoid this situation.

Coolonlycontrol:ON-OFFcontrol,P(PD)control andPID control can be used for cool control. Set OUT1 to DIRT ( direct action ). The other functions for control,

control and control are same as descriptions for heat only control except that the output variable ( and action ) for the cool control is inverse to the heat control.

cool only ON-OFF cool

onlyP(PD) cool only PID

Cool only control:ON-OFF control, P ( PD ) control and PID control

can be used for cool control. Set OUT1 to DIRT ( direct

action

). The other functions for control,

control

and control are same as

descriptions

for heat only control except that the output variable

(

and action ) for the cool control is inverse to the heat control.

cool

only ON-OFF cool

only

P ( PD ) cool only PID

NOTE :

Other Setup Required :

The ON-OFF control may result excessive overshoot and undershoot problems in the process. TheP(orPD)control will result in a deviation process value from the set point. It is recommended to use PID control for the Heat-Cool control to produce a stable and zero offset process value.

O1TY, CYC1, O2TY, CYC2, O1FT, O2FT O1TY & O2TY are set in accordance with the types of OUT1 & OUT2 installed. CYC1 & CYC2 are selected according to the output 1 type ( O1TY ) & output 2 type ( O2TY ). Generally, selects 0.5 ~ 2 sec. for CYC1, if SSRD or SSR is used for O1TY; 10 ~ 20 sec. if relay is used for O1TY, and CYC1 is ignored if linear output is used. Similar condition is applied for CYC2 selection.

NOTE :

Other

Setup Required :

The

ON-OFF control may result excessive overshoot and

undershoot

problems in the process. The P ( or PD ) control will result

a deviation process value from the set point. It is recommended to

use

PID control for the Heat-Cool control to produce a stable and zero

offset

process value.

O1TY,

CYC1, O2TY, CYC2, O1FT, O2FT

O1TY

& O2TY are set in accordance with the types of OUT1 & OUT2

installed.

CYC1 & CYC2 are selected according to the output 1 type (

O1TY

) & output 2 type ( O2TY ). Generally, selects 0.5 ~ 2 sec. for

CYC1,

if SSRD or SSR is used for O1TY; 10 ~ 20 sec. if relay is used

for

O1TY, and CYC1 is ignored if linear output is used. Similar condition

applied for CYC2 selection.

Heat only PID control :

very clever PID and Fuzzy very

small overshoot and very quick response

Selecting REVR for OUT1, PB and TI should not be zero. Operate auto-tuning for the new process, or set PB, TI and TD with historical values. See section 3-11 for auto-tuning operation. If the control result is still unsatisfactory, then use manual tuning to improve the control . See section 3-12 for manual tuning. The unit contains a algorithm to achieve a

to the process if it is properly

tuned.

Heat only PID control :

very

clever PID and Fuzzy very

small

overshoot and very quick response

Selecting

REVR for OUT1, PB and TI should

not

be zero. Operate auto-tuning for the new process, or set PB, TI

and

TD with historical values. See section 3-11 for auto-tuning

operation.

If the control result is still unsatisfactory, then use manual

tuning

to improve the control . See section 3-12 for manual tuning. The

unit

contains a algorithm to achieve a

the process if it is properly

tuned.

UM0C911A 36

You can use the program for the new process or directly set the appropriate values for PB, TI & TD according to the historical records for the repeated systems. If the control behavior is still inadequate, then use to improve the control. See

for manual tuning.

auto-tuning

manual tuning

section 3-12

auto-tuning

manual

tuning

section

3-12

CPB Programming : The cooling proportional band is measured by % of PB with range 50~300. Initially set 100% for CPB and examine the cooling effect. If cooling action should be enhanced then decrease CPB, if cooling action is too strong then increase CPB. The value of CPB is related to PB and its value remains unchanged throughout the auto-tuning procedures.

CPB Programming :

Adjustment of CPB is related to the cooling media used. For air is used as cooling media, adjust CPB at 100(%).For oil is used as cooling media, adjust CPB at 125(%). For water is used as cooling media, adjust CPB at 250(%).

DB Programming: Adjustment of DB is dependent on the system requirements. If more positive value of DB ( greater dead band ) is used, an unwanted cooling action can be avoided but an excessive overshoot over the set point will occur. If more negative value of DB ( greater overlap ) is used, an excessive overshoot over the set point can be minimized but an unwanted cooling action will occur. It is adjustable in the range -36.0% to 36.0 % of PB. A negative DB value shows an overlap area over which both outputs are active. A positive DB value shows a dead band area over which neither output is active.

DB Programming:

Output 2 ON-OFF Control ( Alarm function ):

DE.HI

DE.LO DB.HI

DB.LO PV.HI

PV.LO Figure 3.3 Figure 3.4

The output 2 can also be configured as alarm function. There are 6 kinds of alarm functions can be selected for output 2, these are: (deviation high alarm ),

(deviation low alarm ), (deviation band out of band alarm ), (deviation band in band alarm), (process high alarm ) and ( process low alarm ). Refer to and for the description of deviation alarm and process alarm with normal alarm mode ( NORM is set for ALMD ).

Output 2 ON-OFF Control ( Alarm function ):

DE.HI

DE.LO DB.HI

DB.LO PV.HI

PV.LO Figure

3.3 Figure 3.4

UM0C911A

SV+SP2

SV+SP2-O2HY

OFF

OUT2 Action

Time

Figure 3.3 Output 2 Deviation

High Alarm

Figure 3.3 Output 2 Deviation

High

Alarm

SP2+O2HY

SP2

OFF

OUT2 Action

Time

Figure 3.4 Output 2 Process

Low Alarm

Figure 3.4 Output 2 Process

Low

Alarm

OUT2=DE.HI

UM0C911A 38

3-4 Alarm3-4 Alarm

The output 2 can be selected as alarm output. There are 6 types of alarm functions and one dwell timer can be selected, and four kinds of alarm modes ( ALMD ) are available for each alarm function.

A sets two absolute trigger levels. When the process is higher than SP2, a process high alarm occurs, and the alarm is off as the process is lower than SP2-O2HY. When the process is lower than SP2, a process low alarm occurs and the alarm is off as the process is higher than SP2+O2HY. A process alarm is independent of set point.

process alarm

( PV.HI )

(PV.LO)

A sets two absolute trigger levels. When the process is higher

than SP2, a process high alarm occurs, and the alarm

off as the process is lower than SP2-O2HY. When the process is

lower

than SP2, a process low alarm occurs and the alarm is

off

as the process is higher than SP2+O2HY. A process alarm is

independent

of set point.

process

alarm

(

PV.HI )

(

PV.LO )

A alerts the user when the process deviates too far from set point. When the process is higher than SV+SP2, a deviation high alarm occurs and the alarm is off as the process is lower than SV+SP2-O2HY. When the process is lower than SV+SP2, a deviation low alarm occurs and the alarm is off as the process is higher than SV+SP2+O2HY. Trigger level of deviation alarm is moving with set point.

deviation alarm

(DE.HI)

(DE.LO)

A alerts the user when the process deviates too far from

set point. When the process is higher than SV+SP2, a deviation

high

alarm occurs and the alarm is off as the process is lower

than

SV+SP2-O2HY. When the process is lower than SV+SP2, a

deviation

low alarm occurs and the alarm is off as the process

higher than SV+SP2+O2HY. Trigger level of deviation alarm is

moving

with set point.

deviation

alarm

(DE.HI)

(DE.LO)

A presets two trigger levels relative to set point. The two trigger levels are and for alarm. When the process is higher than ( SV+SP2 ) or lower than ( SV - SP2 ), a deviation band high alarm occurs. When the process is within

the trigger levels, a deviation band low alarm occurs.

deviation band alarm

SV+SP2 SV - SP2

( DB.HI )

(DB.LO)

A presets two trigger levels relative to set point. The

two trigger levels are and for alarm. When the

process

is higher than ( SV+SP2 ) or lower than ( SV - SP2 ), a

deviation

band high alarm occurs. When the process is within

the

trigger levels, a deviation band low alarm occurs.

deviation

band alarm

SV+SP2 SV

- SP2

(

DB.HI )

(DB.LO)

There are four types of alarm modes available for each alarm function, these are: Normal alarm, Latching alarm, Holding alarm and Latching/ Holding alarm. They are described as follows:

There are four types of alarm modes available for each alarm function, these

are: Normal alarm, Latching alarm, Holding alarm and Latching/

Holding

alarm. They are described as follows:

UM0C911A

Latching Alarm : ALMD = LTCH If a latching alarm is selected, once the alarm output is energized, it will remain unchanged even if the alarm condition is cleared. The latching alarm is reset when the RESET key is pressed, once the alarm condition is removed.

Latching Alarm : ALMD = LTCH

Normal Alarm : ALMD = NORM When a normal alarm is selected, the alarm output is de-energized in the non-alarm condition and energized in an alarm condition.

Normal Alarm : ALMD = NORM

In the above descriptions denotes the current set point value for control which is different from SP1 as the ramp function is performed.

SVIn the above descriptions denotes the current set point value for

control

which is different from SP1 as the ramp function is performed.

Holding Alarm : ALMD = HOLD A holding alarm prevents an alarm from power up. The alarm is enabled only when the process reaches the set point value. Afterwards , the alarm performs same function as normal alarm.

Holding Alarm : ALMD = HOLD

Latching / Holding Alarm : ALMD = LT.HO A latching / holding alarm performs both holding and latching function. The latching alarm is reset when the RESET key is pressed, once the alarm condition is removed.

Latching / Holding Alarm : ALMD = LT.HO

Alarm Failure Transfer failure mode

ON O2FT OFF

O2FT

is activated as the unit enters . Alarm will go on if is set for and go off if is set for . The unit will enter failure mode when sensor break occurs or if the A-D converter of the unit fails.

Alarm Failure Transfer failure mode

ON O2FT OFF

O2FT

3-5 Configure Display3-5 Configure Display

C21 can be configured to display the process value by selecting PV for DISP or to display the set point value by selecting SP1 for DISP in the normal condition.

Examples:

If LOCK is set with NONE, OUT2 is set with DEHI, DISP is set with PV, set SEL1=SHIF, SEL2=ADDR. SEL3=PB, SEL4~SEL8=NONE, then the display scrolling for C21 becomes:

UM0C911A

If LOCK is set with NONE, OUT1 is set with REVR,nonzero value is set for PB and TI, OUT2 is set with COOL, DISP is set with SP1, set SEL1=INPT, SEL2=PB, SEL3=TI, SEL4~SEL8=NONE, then the display scrolling for C21 becomes:

SP1

3-6 Ramp3 - 6 Ramp

The ramping function is performed during power up as well as any time the set point is changed. Choose MINR or HRR for RAMP, the unit will perform the ramping function. The ramp rate is programmed by adjusting RR. The ramping function is disabled as soon as the failure mode, the manual control mode, the auto-tuning mode or the calibration mode occurs.

The ramping function is performed during power up as well as any time

the set point is changed. Choose MINR or HRR for RAMP, the

unit

will perform the ramping function. The ramp rate is programmed

adjusting RR. The ramping function is disabled as soon as the

failure

mode, the manual control mode, the auto-tuning mode or the

calibration

mode occurs.

Example without Dwell TimerExample without Dwell Timer

Select MINR for RAMP, selects C for UNIT, selects 1-DP for DP, Set RR= 10.0. SV is set to 200 C initially, and changed to 100 C after 30 minutes since power up. The starting temperature is 30 C. After power up the process is running like the curve shown below:

Select MINR for RAMP, selects C for UNIT, selects 1-DP for DP, Set RR=

10.0. SV is set to 200 C initially, and changed to 100 C after 30

minutes

since power up. The starting temperature is 30 C. After

power

up the process is running like the curve shown below:

200C200

100C100

30C30

30 40

Time (minutes)

Note: When the ramp function is used, the display will show the current ramping value. However it will revert to show the set point value as soon as the up or down key is touched for adjustment. The ramping value is initiated to process value either as power up or RR and /or set point are changed. Setting RR to zero means no ramp function at all.

Note: When the ramp function is used, the display will show the current

ramping value. However it will revert to show the set point

value

as soon as the up or down key is touched for adjustment. The

ramping

value is initiated to process value either as power up or RR

and

/or set point are changed. Setting RR to zero means no ramp

function

at all.

Figure 3.5 RAMP FunctionFigure 3.5 RAMP Function

UM0C911B

Example for C91:Example for C91:

Set OUT2=PVLO, LOCK=NONE, SEL1=INPT, SEL2=UNIT, SEL3=DP, SEL4~SEL8=NONE, then the display scrolling for C91 becomes

SP1 SP2

ATMAN

SP1 SP2

3-7 Dwell Timer3-7 Dwell Timer

Time

Figure 3.6 Dwell Timer FunctionFigure 3.6 Dwell Timer Function

If output 2 is configured as dwell timer, ALMD will be hidden.If output 2 is configured as dwell timer, ALMD will be hidden.

Output 2 can be configured as dwell timer by selecting TIMR for OUT2. As the dwell timer is configured, the parameter SP2 is used for dwell time adjustment. The dwell time is measured in minute ranging from 0.1 to 4553.6 minutes. Once the process reaches the set point the dwell timer starts to count down until zero ( time out ). The timer relay will remain unchanged until time out. The dwell timer operation is shown as following diagram.

After time out the dwell timer will be restarted by pressing the RESET key.

The timer stops to count during the manual control mode, failure mode, calibration period and auto-tuning period.

OFF

ALM

Time

SP3

Timer starts

power off or touch RESET key

UM0C911A 42

3-8 PVShift3 - 8 PV Shift

In certain applications it is desirable to shift the controller display value from its actual value. This can be easily accomplished by using the PV shift function.

In certain applications it is desirable to shift the controller display value

from its actual value. This can be easily accomplished by using

the

PV shift function.

Here is an example. A process is equipped with a heater, a sensor and a subject to be warmed up. Due to the design and position of the components in the system, the sensor could not be placed any closer to the part. Thermal gradient ( different temperature ) is common and necessary to an extent in any thermal system for heat to be transferred from one point to another. If the difference between the sensor and the subject is 35 C, and the desired temperature at the subject to be heated is 200 C, the controlling value or the temperature at the sensor should be 235 C. You should input -35 C as to subtract 35 C from the actual process display. This in turn will cause the controller to energize the load and bring the process display up to the set point value.

Here is an example. A process is equipped with a heater, a sensor and

a subject to be warmed up. Due to the design and position of the

components

in the system, the sensor could not be placed any closer

the part. Thermal gradient ( different temperature ) is common and

necessary

to an extent in any thermal system for heat to be

transferred

from one point to another. If the difference between the

sensor

and the subject is 35 C, and the desired temperature at the

subject

to be heated is 200 C, the controlling value or the

temperature

at the sensor should be 235 C. Yo u should input -35 C

to subtract 35 C from the actual process display. This in turn will

cause

the controller to energize the load and bring the process

display

up to the set point value.

The SHIF function will .alter PV onlyThe SHIF function will .alter PV only

165 C

Heat Transfer

200 C

Sensor

Subject

Heater

35 C temperature difference is observed SHIF= 0

165 C

Heat Transfer

200 C

Sensor

Subject

Heater

Adjust SHIF SHIF= -35 C Supply more heat

200 C

Heat Transfer

235 C

Sensor

Subject

Heater

Display is stable SHIF= -35 C PV=SV

Figure 3.7 PV Shift Application

Figure 3.7 PV

Shift Application

UM0C911A

3- 9 Digital Filter3- 9 Digital Filter

In certain application the process value is too unstable to be read. To improve this a programmable low pass filter incorporated in the controller can be used. This is a first order filter with time constant specified by parameter . The default value of FILT is 0.5 sec. before shipping. Adjust FILT to change the time constant from 0 to 60 seconds. 0 second represents no filter is applied to the input signal. The filter is characterized by the following diagram.

FILT

Time

1 sec1 sec

FILT=30

FILT=0

FILT=1

Figure 3.8 Filter Characteristics

Figure 3.8 Filter

Characteristics

The Filter is available only for PV, and is performed for the displayed value only. The controller is designed to use unfiltered signal for control even if Filter is applied. A lagged ( filtered ) signal, if used for control, may produce an unstable process.

The Filter is available only for PV, and is performed for the displayed value

only. The controller is designed to use unfiltered signal for

control

even if Filter is applied. A lagged ( filtered ) signal, if used for

control,

may produce an unstable process.

Note

UM0C911A 44

3 -10 Failure Transfer3 -10 Failure Transfer

The controller will enter as one of the following conditions occurs:

1. occurs due to the input sensor break or input current below 1mA if 4-20 mA is selected or input voltage below 0.25V if 1-5 V is selected .

2. occurs due to the A-D converter of the controller fails.

failure mode

SBER

ADER

failure mode

SBER

ADER

The output 1 and output 2 will perform the function as the controller enters failure mode.

failure transferfailure transfer

Output 1 Failure Transfer, if activated, will perform :

1. If output 1 is configured as proportional control ( PB=0 ), and BPLS is selected for O1FT, then output 1 will perform bumpless transfer. Thereafter the previous averaging value of MV1 will be used for controlling output 1.

2. If output 1 is configured as proportional control ( PB=0 ), and a value of 0 to 100.0 % is set for O1FT, then output 1 will perform failure transfer. Thereafter the value of O1FT will be used for controlling output 1.

3. If output 1 is configured as ON-OFF control ( PB=0 ), then output 1 will transfer to off state if OFF is set for O1FT and transfer to on state if ON is set for O1FT.

Output 1 Failure Transfer

Output 2 Failure Transfer, if activated, will perform :

1. If OUT2 is configured as COOL, and BPLS is selected for O2FT,

then output 2 will perform bumpless transfer. Thereafter the previous averaging value of MV2 will be used for controlling output 2.

2. If OUT2 is configured as COOL, and a value of 0 to 100.0 % is set

for O2FT, then output 2 will perform failure transfer. Thereafter the value of O2FT will be used for controlling output 2.

3. If OUT2 is configured as alarm function, and OFF is set for O2FT,

then output 2 will transfer to off state, otherwise, output 2 will transfer to on state if ON is set for O2FT.

Output 2 Failure Transfer, if activated, will perform :

If OUT2 is configured as COOL, and BPLS is selected for O2FT, then

output 2 will perform bumpless transfer. Thereafter the previous

averaging

value of MV2 will be used for controlling output 2.

If OUT2 is configured as COOL, and a value of 0 to 100.0 % is set for

O2FT, then output 2 will perform failure transfer. Thereafter the

value

of O2FT will be used for controlling output 2.

If OUT2 is configured as alarm function, and OFF is set for O2FT, then

output 2 will transfer to off state, otherwise, output 2 will transfer

on state if ON is set for O2FT.

UM0C911A

4. Press several times until appears on the display.( for C21) or AT indicator is lit (for C91).

5. Press for at least 5 seconds. The AT indicator ( for C91 ) or the display ( for C21 )will begin to flash and the auto-tuning procedure is beginning.

3 -11 Auto-tuning3 -11 Auto-tuning

The auto-tuning process is performed at set point. The process will oscillate around the set point during tuning process. Set a set point to a lower value if overshooting beyond the normal process value is likely to cause damage.

The auto-tuning process is performed at set point. The

process will oscillate around the set point during tuning

process.

Set a set point to a lower value if overshooting beyond

the

normal process value is likely to cause damage.

The auto-tuning is applied in cases of : Initial setup for a new process The set point is changed substantially from the previous autotuning value The control result is unsatisfactory

The auto-tuning is applied in cases of : Initial

setup for a new process

The

set point is changed substantially from the previous auto-

tuning

value

The

control result is unsatisfactory

* *

Operation :Operation :

2. Set the correct values for the setup menu of the unit. But don't use a zero value for PB and TI , otherwise, the auto-tuning program will be disabled. The LOCK parameter should be set at NONE.

3. Set the set point to a normal operating value or a lower value if overshooting beyond the normal process value is likely to cause damage.

NOTE :NOTE :

The ramping function, if used, will be disabled once auto-tuning is proceeding.

The auto-tuning mode is disabled as soon as either failure mode

or manual control mode occurs.

1. The system has been installed normally.

UM0C911C 46

Procedures:

The auto-tuning can be applied either as the process is warming

up ( Cold Start ) or as the process has been in steady state ( Warm Start ).

After the auto-tuning procedures are completed, the AT indicator will cease to flash and the unit revert to PID control by using its new PID values. The PID values obtained are stored in the nonvolatile memory.

Auto-Tuning ErrorAuto-Tuning Error

If auto-tuning fails an ATER message will appear on the display in cases of :

If auto-tuning fails an ATER message will appear on the display in cases

of :

Solutions toSolutions to

1. Try auto-tuning once again.

2. Don't change set point value during auto-tuning procedure.

3. Don't set zero value for PB and TI.

4. Use manual tuning instead of auto-tuning. ( See section 3-12 ).

5. Touch RESET key to reset message.

1. Try auto-tuning once again.

Don't change set point value during auto-tuning procedure.

Don't set zero value for PB and TI.

Use manual tuning instead of auto-tuning. ( See section 3-12 ).

Touch RESET key to reset message.

If PB exceeds 9000 ( 9000 PU, 900.0 F or 500.0 C ). or if TI exceeds 1000 seconds. or if set point is changed during auto-tuning procedure.

LLIf PB exceeds 9000 ( 9000 PU, 900.0 F or 500.0 C ).

if TI exceeds 1000 seconds.

if set point is changed during auto-tuning procedure.

3 - 12 Manual Tuning3 - 12 Manual Tuning

In certain applications ( very few ) using auto-tuning to tune a process may be inadequate for the control requirement, then you can try manual tuning.

If the control performance by using auto- tuning is still unsatisfactory, the following rules can be applied for further adjustment of PID values :

UM0C911A

ADJUSTMENT SEQUENCEADJUSTMENT SEQUENCE

SYMPTOM SOLUTION

(1) Proportional Band ( PB )

(2) Integral Time ( TI )(2) Integral Time ( TI )

(3) Derivative Time ( TD )(3) Derivative Time ( TD )

Slow ResponseSlow Response

High overshoot or Oscillations

Slow ResponseSlow Response

Slow Response or Oscillations

Instability or Oscillations

High OvershootHigh Overshoot

Decrease PBDecrease PB

Increase PBIncrease PB

Decrease TIDecrease TI

Increase TIIncrease TI

Decrease TDDecrease TD

Increase TDIncrease TD

Table 3.2 PID Adjustment GuideTable 3.2 PID Adjustment Guide

Figure 3.9 shows the effects of PID adjustment on process response.Figure 3.9 shows the effects of PID adjustment on process response.

3 -13 Manual Control3 -13 Manual Control

Operation:

To enable manual control the LOCK parameter should be set with NONE, then press for several times then (Heating output) or (Cooling output) will appear on the display. Press for 5 seconds then the MAN indicator (for C91) or the display (for C21) will begin to flash. The controller now enters the manual control mode.

indicates output control variable for output 1, and

indicates control variable for output 2. Now you can use updown key to adjust the percentage values for the heating or cooling output.

The controller performs open loop control as long as it stays in manual control mode.

To enable manual control the LOCK parameter should be set with NONE,

then press for several times then (Heating output)

(Cooling output) will appear on the display. Press for 5

seconds

then the MAN indicator (for C91) or the display (for C21) will

begin

to flash. The controller now enters the manual control mode.

indicates

output control variable for output 1, and

indicates

control variable for output 2. Now you can use up-

down

key to adjust the percentage values for the heating or cooling

output.

The

controller performs open loop control as long as it stays in manual

control

mode.

Exit Manual ControlExit Manual Control

To press key the controller will revert to its normal display mode.To press key the controller will revert to its normal display mode.

UM0C911C 48

Figure 3.9 Effects of PID AdjustmentFigure 3.9 Effects of PID Adjustment

Time

Perfect

PB too high

PB too lowPB too low

Set pointSet point

P actionP action

I actionI action

Time

Perfect

TI too low

TI too highTI too high

Set pointSet point

D actionD action

Time

Perfect

TD too high

TD too lowTD too low

Set pointSet point

UM0C911A

Two types of interface are available for Data Communication. These are

and interface. Since RS-485 uses a differential architecture to drive and sense signal instead of a single ended architecture which is used for RS-232, RS-485 is less sensitive to the noise and suitable for a longer distance communication. RS-485 can communicate without error over 1 km distance while RS-232 is not recommended for a distance over 20 meters.

RS-

485 RS-232

Tw o types of interface are available for Data Communication. These are

and interface.

Since RS-485 uses a differential architecture to

drive

and sense signal instead of a single ended architecture which is used

for

RS-232, RS-485 is less sensitive to the noise and suitable for a longer

distance

communication. RS-485 can communicate without error over 1 km

distance

while RS-232 is not recommended for a distance over 20 meters.

RS-

485 RS-232

Using a PC for data communication is the most economic way. The signal is transmitted and received through the PC communication Port ( generally RS-232 ). Since a standard PC can't support RS-485 port, a network adaptor(suchas )hastobeusedtoconvertRS-485to RS-232 for a PC if RS-485 is required for the data communication. But there is no need to be sad. Many RS-485 units ( up to 247 units ) can be connected to one RS-232 port, therefore a PC with 4 comm ports can communicate with 988 units. It is quite economic.

SNA10A SNA10B,

Using a PC for data communication is the most economic way. The signal is

transmitted and received through the PC communication Port ( generally

RS-232

). Since a standard PC can't support RS-485 port, a network

adaptor

( such as ) has to be used to convert RS-485 to

RS-232

for a PC if RS-485 is required for the data communication. But there

no need to be sad. Many RS-485 units ( up to 247 units ) can be

connected

to one RS-232 port, therefore a PC with 4 comm ports can

communicate

with 988 units. It is quite economic.

SNA10A SNA10B,

Setup

Enters the setup menu. Select RTU for COMM . Set individual address as for those units which are

connected to the same port. Set the Baud Rate ( ), Data Bit ( ), Parity Bit ( ) and Stop

Bit ( ) such that these values are accordant with PC setup conditions.

BAUD DATA PARI

STOP

Enters the setup menu. Select

RTU for COMM . Set individual address as for those units which are

connected

to the same port.

Set

the Baud Rate (),Data Bit ( ), Parity Bit ()and Stop

Bit

()such that these values are accordant with PC setup conditions.

BAUD DATA PARI

STOP

If you use a conventional 9-pin RS -232 cable instead of CC94-1, the cable should be modified for proper operation of RS-232 communication according to Section 2-9.

3 -14 Data Communication3 -14 Data Communication

The controllers support mode of protocol for the data communication. Other protocols are not available for the series.

RTU Modbus

UM0C911D 50

3 -15 PV Retransmission3 -15 PV Retransmission

C91 and C21 can output (retransmit) process value via its retransmission terminals RE+ and RE- provided that the retransmission option is ordered. A correct signal type should be selected for COMM parameter to meet the retransmission option installed. RELO and REHI are adjusted to specify the low scale and high scale values of retransmission.

To achieve this function set the following parameters in the setup menu.

Auto-Tuning is performed at 150 C for a new oven.LAuto-Tuning is performed at 150 C for a new oven.L

INPT=K_TC UNIT= C DP=1_DP OUT1=REVR O1TY=RELY CYC1=18.0 O1FT=BPLS OUT2=TIMR O2FT=ON

INPT=K_TC UNIT= C DP=1_DP OUT1=REVR

O1TY=RELY CYC1=18.0

O1FT=BPLS

OUT2=TIMR O2FT=ON

Figure 4.1 Heat Control Example

Figure 4.1 Heat

Control

Example

Mains Supply

OFF

Timer ( ALM )

Heater

T/C

Oven

OUT1

Set SP1=150.0 SP2 =30.0

SP1=150.0 SP2

=30.0

4 - 1 Heat Only Control with Dwell Timer4 - 1 Heat Only Control with Dwell Timer

An oven is designed to dry the products at 150 C for 30 minutes and then stay unpowered for another batch. A C91 equipped with

is used for this purpose. The system diagram is shown as

follows :

dwell

timer

dwell

timer

Chapter 4 ApplicationsChapter 4 Applications

4 5

MAN

SP2SP1

C91

OP1

OP2

UM0C911A

4 - 2 Cool Only Control4 - 2 Cool Only Control

A C91 is used to control a refrigerator at temperature below 0 C. The temperature is lower than the ambient, a cooling action is required. Hence select DIRT for OUT1. Since output 1 is used to drive a magnetic contactor, O1TY selects RELY. A small temperature oscillation is tolerable, hence use ON-OFF control to reduce the overall cost. To achieve ON-OFF control, PB is set with zero and O1HY is set at 0.1 C.BB

Setup Summary:

INPT=PT.DN UNIT= C DP=1-DP OUT1=DIRT O1TY=RELY

User Menu:User Menu:

PB =0( C) O1HY=0.1 ( C )

PB = 0 (C) O1HY=0.1

(C)

Figure 4.2 Cooling Control Example

Figure 4.2 Cooling

Control Example

RTD

Refrigerator

Mains Supply

MAN

SP2SP1

C91

OP1

OP2

UM0C911A 52

4 - 3 Heat-Cool Control4 - 3 Heat-Cool Control

An injection mold required to be controlled at 120 C to ensure a consistent quality for the parts. An oil pipe is buried in the mold. Since plastics is injected at higher temperature ( e.g. 250 C ), the circulation oil needs to be cooled as its temperature rises. Here is an example:

An injection mold required to be controlled at 120 C to ensure a consistent

quality for the parts. An oil pipe is buried in the mold. Since

plastics

is injected at higher temperature ( e.g. 250 C ), the

circulation

oil needs to be cooled as its temperature rises. Here is an

example:

Plastics

Oil Pump

Oil Tank

Heater Supply

Freezer

4-20 mA

OUT2

RTD

OUT1

INPT

Figure 4.3 Heat-Cool Control Example

Figure 4.3 Heat-Cool

Control Example

Injection Mold

120 C

1,2 9

5 4

MAN

SP2SP1

C91

OP1

OP2

UM0C911A

The PID Heat-Cool is used for the above example. To achieve this set the following parameters in the Setup Menu:

Adjustment of CPB is related to the cooling media used. If water is used as cooling media instead of oil, the CPB is set at 250 (%). If air is used as cooling media instead of oil, the CPB is set at 100 (%). Adjustment of DB is dependent on the system requirements. More positive value of DB will prevent unwanted cooling action, but will increase the temperature overshoot, while more negative value of DB will achieve less temperature overshoot, but will increase unwanted cooling action.

Adjustment of CPB is related to the cooling media used. If water is used

as cooling media instead of oil, the CPB is set at 250 (%). If air is

used

as cooling media instead of oil, the CPB is set at 100 (%).

Adjustment

of DB is dependent on the system requirements. More

positive

value of DB will prevent unwanted cooling action, but will

increase

the temperature overshoot, while more negative value of DB

will

achieve less temperature overshoot, but will increase unwanted

cooling

action.

Adjust SV at 120.0 C , CPB at 125(%)andDBat-4.0 (%).LAdjust SV at 120.0 C , CPB at 125 ( % ) and DB at -4.0 (%).L

Apply at 120 C for a new system to get an optimal PID values.

LAuto-tuning

See Section 3-11.

Apply at 120 C for a new system to get an optimal PID values.

LAuto-tuning

See

Section 3-11.

INPT=PT.DN UNIT= C DP= 1-DP OUT1=REVR O1TY=RELY CYC1=18.0 (sec.) O1FT=BPLS OUT2=COOL O2TY=4-20 O2FT=BPLS

INPT=PT.DN UNIT= C DP=

1-DP OUT1=REVR O1TY=RELY CYC1=18.0

(sec.) O1FT=BPLS OUT2=COOL O2TY=4-20 O2FT=BPLS

UM0C911A 54

Chapter 5 CalibrationChapter 5 Calibration

Do not proceed through this section unless there is a definite need to re-calibrate the controller. Otherwise, all previous calibration data will be lost. Do not attempt recalibration unless you have appropriate calibration equipment. If calibration data is

lost, you will need to return the controller to your supplier who may charge you a service fee to re-calibrate the controller.

Entering calibration mode will break the control loop. Make sure that if the system is allowable to apply calibration mode.

Equipments needed before calibration:

(1) A high accuracy calibrator ( Fluke 5520A Calibrator

recommended ) with following functions: 0 - 100 mV millivolt source with 0.005 % accuracy 0 - 10 V voltage source with 0.005 % accuracy 0 - 20 mA current source with 0.005 % accuracy 0 - 300 ohm resistant source with 0.005 % accuracy

(2) A test chamber providing 25 C - 50 C temperature range (3) A switching network ( SWU16K, optional for automatic

calibration )

(4) A calibration fixture equipped with programming units ( optional

for automatic calibration )

(5) A PC installed with calibration software BC-Net and Smart

Network Adaptor SNA10B ( optional for automatic calibration )

The calibration procedures described in the following section are a step by step manual procedures.

manual procedures.

Since it needs 30 minutes to warm up an unit before calibration, calibrating the unit one by one is quite inefficient. An

for small quantity as well as for unlimited quantity is

available upon request.

automatic

calibration system

automatic

calibration

system

UM0C911A

Press scroll key until the display shows . Send a 60 mV signal to the thermocouple input terminals in correct polarity . Press scroll key for at least 5 seconds . The display will blink a moment and a new value is obtained . Otherwise , if the display didn't blink or if the obtained value is equal to

-199.9 or 199.9, then the calibration fails.

Step 1.

Step 3.Step 3.

Short the thermocouple inpt terminals , then press scroll key for at least 5 seconds. The display will blink a moment and a new value is obtained. Otherwise, if the display didn't blink or if the obtained value is equal to -199.9 or 199.9, then the calibration fails.

Step 2.

Press and hold the scroll key until appears on the display, then release the scroll key. Press the scroll key for 2 seconds then release,the display will show and the unit enters calibration mode .

Manual Calibration ProceduresManual Calibration Procedures

Set the Lock parameter to the unlocked condition ( LOCK= NONE).

Perform step 1 to enter calibration mode.

Perform step 2 to calibrate Zero of A to D converter and step 3 to calibrate gain of A to D converter.

Perform both steps 4 and 5 to calibrate RTD function ( if required ) for input .

UM0C911C 56

Press scroll key until the display shows . Send a 100

ohms signal to the RTD input terminals according to the

connection shown below:

Step 4.Step 4.

8 9

100 ohms

Press scroll key for at least 5 seconds . The display will blink a moment, otherwise the calibration fails.

Figure 5.1 RTD CalibrationFigure 5.1 RTD Calibration

Press scroll key and the display will show . Change the ohm's value to 300 ohms .Press scroll key for at least 5 seconds. The display will blink a moment and two values are obtained for RTDH and RTDL ( step 4 ). Otherwise, if the display didn't blink or if any value obtained for RTDH and RTDL is equal to -199.9 or 199.9 , then the calibration fails.

Step 5.Step 5.

Perform step 6 to calibrate offset of cold junction compensation , if required.

Setup the equipments according to the following diagram for calibrating the cold junction compensation. Note that a K type thermocouple must be used.

Step 6.

C21

3 4 5

C91

UM0C911C

Stay at least 20 minutes in stillair room room temperature 25 3 C

Stay at least 20 minutes in stillair

room

temperature 25 3 CAL

Figure 5.2 Cold Junction Calibration Setup

Figure 5.2 Cold

Junction Calibration Setup

K+

5520A Calibrator

K-TC

The 5520A calibrator is configured as K type thermocouple output with internal compensation. Send a 0.00 C signal to the unit under calibration.

The 5520A calibrator is configured as K type thermocouple output with

internal compensation. Send a 0.00 C signal to the unit under

calibration.

Perform step 7 to calibrate of compensation if required.

gain cold junctiongain cold junction

Setup the equipments same as step 6. The unit under calibration is powered in a still-air room with temperature

Stay at least 20 minutes for warming up . The calibrator source is set at 0.00 C with internal compensation mode.

3C.

Step 7.Step 7.

The unit under calibration is powered in a still-air room with temperature 25 3 C. Stay at least 20 minutes for warming up. Perform step 1 stated above, then press scroll key until the display shows . Press up/down key to obtain

40.00. Press scroll key for at least 5 seconds. The display will blink a moment and a new value is obtained . Otherwise , if the display didn't blink or if the obtained value is equal to -5.00 or

40.00, then the calibration fails.

C21

4 5

C91

UM0C911C 58

Perform step 1 stated above , then press scroll key until the display shows . Press scroll key for at least 5 seconds. The display will blink a moment and a new value is obtained. Otherwise , if the display didn't blink or if the obtained value is equal to -199.9 or 199.9, then the calibration fails.

This setup is performed in a hence

it is recommended to use a computer to perform the

procedures.

high temperature chamber,

Final stepFinal step

Step 8.Step 8.

Set the LOCK value to your desired function.Set the LOCK value to your desired function.

Input modification recalibration linear voltage linear current

and procedures for a

or a input:

Input modification recalibration linear voltage linear

current

1. Remove R60(3.3K) and install two 1/4 W resistors RA and RB on the control board with the recommended values specified in the following table.

The low temperature coefficient resistors should be used for RA and RB.

Input Function

RA RB

R60

T/C, RTD, 0~60mV

61.9K

3.92K

3.3K

0~1V

0~5V,1~5V

0~10V

0~20mA, 4~20mA

324K

649K

39W

3.92K

3.01W

2. Perform and to calibrate the linear input zero.

3. Perform but send a span signal to the input terminals instead of 60mV. The span signal is 1V for 0~1V input, 5V for 0~5V or 1~5V input, 10V for 0~10V input and 20mA for 0~20mA or 4~20mA input.

Step 1 Step 2

Step 3

Step 1 Step 2

Step

UM0C911C

Chapter 6 SpecificationsChapter 6 Specifications

Power

Input

90 250 VAC, 47 63 Hz, 10VA, 5W maximum 11 26 VAC / VDC, 10VA, 5W maximum

SELV, Limited Energy,

90 250 VAC, 47 63 Hz, 10VA, 5W maximum 11

26 VAC / VDC, 10VA, 5W maximumSELV, Limited Energy,

Sensor Break Detection :Sensor Break Detection :

Sensor open for TC, RTD and mV inputs, Sensor short for RTD input below 1 mA for 4-20 mA input, below 0.25V for1-5Vinput, unavailable for other inputs.

Sensor open for TC, RTD and mV inputs, Sensor

short for RTD input

below

1 mA for 4-20 mA input,

below

0.25V for 1 - 5 V input,

unavailable

for other inputs.

Sensor Break Responding Time :Sensor Break Responding Time :

Within 4 seconds for TC, RTD and mV inputs,

0.1 second for 4-20 mA and1-5Vinputs.

Within 4 seconds for TC, RTD and mV inputs,

0.1

second for 4-20 mA and 1 - 5 V inputs.

Resolution : Sampling Rate : Maximum Rating :

Temperature Effect :

Sensor Lead Resistance Effect :

Common Mode Rejection Ratio ( CMRR ):

18 bits

5 times / second

-2 VDC minimum, 12 VDC maximum

( 1 minute for mA input )

1.5uV/ C for all inputs except mA input

T/C: 0.2uV/ohm 3-wire RTD: 2.6 C/ohm of resistance difference of two

leads

2-wire RTD: 2.6 C/ohm of resistance sum of two leads

200 nA

120dB

3.0uV/ C for mA inputB

Resolution : Sampling

Rate :

Maximum

Rating :

Temperature

Effect :

Sensor

Lead Resistance Effect :

Common

Mode Rejection Ratio ( CMRR ):

bits

times / second

-2

VDC minimum, 12 VDC maximum

(

1 minute for mA input )

1.5uV/ C

for all inputs except

input

T/C:

0.2uV/ohm

3-wire

RTD: 2.6 C/ohm of resistance difference of two

leads

2-wire

RTD: 2.6 C/ohm of resistance sum of two leads

200

120dB

3.0uV/ C

for mA inputB

Burn-out Current :Burn-out Current :

Normal Mode Rejection Ratio ( NMRR ): 55dBNormal Mode Rejection Ratio ( NMRR ): 55dB

UM0C911B 60

Characteristics:

Type Range

Input

Impedance

Input

Impedance

-120 C 1000 C

( -184 F 1832 F )

-120 C 1000 C

(

-184 F 1832 F )

Accuracy @25 C

Accuracy @

25 C

-200 C 1370 C

( -328 F 2498 F )

-200 C 1370 C

(

-328 F 2498 F )

-250 C 400 C

( -418 F 752 F )

-250 C 400 C

(

-418 F 752 F )

-100 C 900 C

( -148 F 1652 F )

-100 C 900 C

(

-148 F 1652 F )

0 C 1800 C

( 32 F 3272 F )BB

0 C 1800 C

(

32 F 3272 F )BB

0 C 1767.8 C

( 32 F 3214 F )BB

0 C 1767.8 C

(

32 F 3214 F )BB

2.2 M2.2 M

PT100 ( DIN )

PT100 (

DIN )

AL2CAL2C

( 200 C

1800 C )

( 200 C

1800

C )

AL2CAL2C

AL0.4 CAL0.4 C

A0.05 %A0.05 %

AL2CAL2C

0 C 1767.8 C

( 32 F 3214 F )BB

0 C 1767.8 C

(

32 F 3214 F )BB

-250 C 1300 C

( -418 F 2372 F )

-250 C 1300 C

(

-418 F 2372 F )

-200 C 900 C

( -328 F 1652 F )

-200 C 900 C

(

-328 F 1652 F )

-200 C 600 C

( -328 F 1112 F )

-200 C 600 C

(

-328 F 1112 F )

PT100 ( JIS )

PT100 (

JIS )

-210 C 700 C

( -346 F 1292 F )

-210 C 700 C

(

-346 F 1292 F )

-8mV 70mV-8mV 70mV

-3mA 27mA-3mA 27mA

-1.3V 11.5V-1.3V 11.5V

A0.05 %A0.05 %

70.5

650 K650 K

1.3 K1.3 K

UM0C911A

Output 1 / Output 2Output 1 / Output 2

Relay Rating :

Pulsed Voltage :

2A/240 VAC, life cycles 200,000 for

resistive load

Source Voltage 5V,

current limiting resistance 66 .

Relay Rating :

Pulsed

Voltage :

2A/240

VAC, life cycles 200,000 for

resistive

load

Source

Voltage 5V,

current

limiting resistance 66 .

Linear Output CharacteristicsLinear Output Characteristics

Type

Zero

Tolerance

Zero

Tolerance

Span

Tolerance

Span

Tolerance

Load

Capacity

Load

Capacity

4~20 mA4~20 mA 3.6~4 mA3.6~4 mA 20~21 mA20~21 mA

20~21 mA20~21 mA

500 max.W500 max.W

0~20 mA0~20 mA 0mA0 mA

0V0 V

10 K min.W10 K min.W

0~5V0 ~ 5 V

0.9~1V0.9 ~ 1 V

5 ~ 5.25 V5 ~ 5.25 V

10 ~10.5 V10 ~10.5 V

1~5V1 ~ 5 V

0~10V0 ~ 10 V

Triac ( SSR ) OutputTriac ( SSR ) Output

Rating : Inrush Current : Min. Load Current : Max. Off-state Leakage : Max. On-state Voltage : Insulation Resistance : Dielectric Strength :

1A / 240 VAC

20A for 1 cycle

50 mA rms

3mArms

1.5 V rms

1000 Mohms min. at 500 VDC

2500 VAC for 1 minute

Rating : Inrush

Current :

Min.

Load Current :

Max.

Off-state Leakage :

Max.

On-state Voltage :

Insulation

Resistance :

Dielectric

Strength :

/ 240 VAC

20A

for 1 cycle

mA rms

1.5

V rms

1000

Mohms min. at 500 VDC

2500

VAC for 1 minute

Resolution :Resolution :

15 bits15 bits

Output Regulation : Output Settling Time : Isolation Breakdown Voltage : Temperature Effect :

0.02 % for full load change

0.1 sec. ( stable to 99.9 % ) 1000 VAC

0.01 % of SPAN / C

Output Regulation : Output

Settling Time :

Isolation

Breakdown Voltage :

Temperature

Effect :

0.02

% for full load change

0.1

sec. ( stable to 99.9 % )

1000

VAC

0.01

% of SPAN /CAL

Linear OutputLinear Output

UM0C911B

DC Voltage Supply Characteristics ( Installed at Output 2 )DC Voltage Supply Characteristics ( Installed at Output 2 )

Dwell timer, Deviation High / Low Alarm, Deviation Band High / Low Alarm, PV High / Low Alarm, PID cooling control

Normal, Latching, Hold, Latching / Hold.

0.1 - 4553.6 minutes

Output 2 Functions :

Alarm Mode : Dwell Timer :

Dwell timer, Deviation High / Low Alarm, Deviation

Band High / Low Alarm,

High / Low Alarm, PID cooling control

Normal,

Latching, Hold, Latching / Hold.

0.1

- 4553.6 minutes

Output

2 Functions :

Alarm

Mode :

Dwell

Timer :

Data CommunicationData Communication

Interface : Protocol : Address : Baud Rate : Data Bits : Parity Bit : Stop Bit : Communication Buffer :

RS-232 ( 1 unit ), RS-485 ( up to 247 units ) Modbus Protocol RTU mode 1 - 247

2.4 ~ 38.4 Kbits/sec

7 or 8 bits

None, Even or Odd

1 or 2 bits

160 bytes

Interface : Protocol

Address

Baud

Rate :

Data

Bits :

Parity

Bit :

Stop

Bit :

Communication

Buffer :

RS-232

( 1 unit ), RS-485 ( up to 247 units )

Modbus

Protocol RTU mode

- 247

2.4

~ 38.4 Kbits/sec

or 8 bits

None,

Even or Odd

or 2 bits

160

bytes

UM0C911C

Type

Tolerance

Max. Output Current

Ripple VoltageRipple Voltage

Isolation BarrierIsolation Barrier

20 V20 V A1 VA1 V 25 mA25 mA

0.2 Vp-p0.2 Vp-p

500 VAC500 VAC

12 V12 V

A0.6 VA0.6 V 40 mA40 mA

0.1 Vp-p0.1 Vp-p

5V5 V A0.25 VA0.25 V 80 mA80 mA

0.05 Vp-p0.05 Vp-p

Resolution : 15 bits

0.05 % of span 0.0025 %/ C

0 - 500 ohms ( for current output )

10 K ohms minimum ( for voltage output )

0.01 % for full load change

Accuracy : Load Resistance :

Output Regulation :

AAL

Resolution : 15 bits

0.05

% of span 0.0025 %/ C

- 500 ohms ( for current output )

K ohms minimum ( for voltage output )

0.01

% for full load change

Accuracy

Load

Resistance :

Output

Regulation :

AAL

Analog RetransmissionAnalog Retransmission

4-20 mA, 0-20 mA, 0 - 5V,

1-5V,0-10V

Output Signal : 4-20 mA, 0-20 mA, 0 - 5V,

- 5V, 0 - 10V

Output

Signal :

User InterfaceUser Interface

Single 4-digit LED Display Keypad : Programming Port : Communication Port :

4 keys for C91, 3 keys for C21

For automatic setup, calibration and testing

Connection to PC for supervisory control

Single 4-digit LED Display Keypad

Programming

Port :

Communication

Port :

keys for C91, 3 keys for C21

For

automatic setup, calibration and testing

Connection

to PC for supervisory control

Control ModeControl Mode

Output 1 : Output 2 :

ON-OFF : PorPD: PID :

Cycle Time : Manual Control : Auto-tuning : Failure Mode :

Ramping Control :

Reverse ( heating ) or direct ( cooling ) action PID cooling control, cooling P band 50~300%

of PB, dead band -36.0 ~ 36.0 % of PB

0.1 - 90.0 ( F ) hysteresis control ( P band=0)

0 - 100.0 % offset adjustment

Fuzzy logic modified

Proportional band 0.1 ~ 900.0 F. Integral time 0 - 3600 seconds Derivative time 0 - 360.0 seconds

0.1 - 90.0 seconds Heat (MV1) and Cool (MV2)

Cold start and warm start

Auto-transfer to manual mode while

sensor break or A-D converter damage

0 - 900.0 F/minute or

0 - 900.0 F/hour ramp rate

Output 1 : Output

2 :

ON-OFF

or PD :

PID

Cycle

Time :

Manual

Control :

Auto-tuning

Failure

Mode :

Ramping

Control :

Reverse

( heating ) or direct ( cooling ) action

PID

cooling control, cooling P band 50~300%

PB, dead band -36.0 ~ 36.0 % of PB

0.1

- 90.0 (F) hysteresis control ( P band = 0 )

- 100.0 % offset adjustment

Fuzzy

logic modified

Proportional

band 0.1 ~ 900.0 F.

Integral

time 0 - 3600 seconds

Derivative

time 0 - 360.0 seconds

0.1

- 90.0 seconds Heat

(MV1) and Cool (MV2)

Cold

start and warm start

Auto-transfer

to manual mode while

sensor

break or A-D converter damage

- 900.0 F/minute or

- 900.0 F/hour ramp rate

Digital FilterDigital Filter

Function : Time Constant :

First order

0, 0.2, 0.5, 1, 2, 5, 10, 20, 30, 60

seconds programmable

Function : Time

Constant :

First

order

0.2, 0.5, 1, 2, 5, 10, 20, 30, 60

seconds

programmable

UM0C911D 64

Output Settling Time : 0.1 sec. (stable to 99.9 % )

1000 VAC min.

0.005 % of span

0.0025 % of span/ C

0mA(or0V)

22.2 mA ( or 5.55V, 11.1V min. ) 0-22.2mA(0-20mA or 4-20mA)

0-5.55V(0-5V,1-5V) 0-11.1V(0-10V)

Isolation Breakdown Voltage : Integral Linearity Error : Temperature Effect : Saturation Low : Saturation High : Linear Output Range :

Output Settling Time : 0.1 sec. (stable to 99.9 % )

1000

VAC min.

0.005

% of span

0.0025

% of span/ C

mA ( or 0V )

22.2

mA ( or 5.55V, 11.1V min. )

0-22.2mA(0-20mA

or 4-20mA)

0-5.55V

(

0 - 5V,

1 - 5V )

11.1 V ( 0

- 10V )

Isolation

Breakdown Voltage :

Integral

Linearity Error :

Temperature

Effect :

Saturation

Low :

Saturation

High :

Linear

Output Range :

Approval StandardsApproval Standards

Safety : UL61010C-1

CSA C22.2 No.24-93 EN61010-1 ( IEC1010-1 )

Safety : UL61010C-1

CSA

C22.2 No.24-93

EN61010-1

( IEC1010-1 )

Environmental & PhysicalEnvironmental & Physical

Operating Temperature : Storage Temperature : Humidity : Altitude: Pollution: Insulation Resistance : Dielectric Strength : Vibration Resistance : Shock Resistance : Moldings : Dimensions :

Weight :

-10 Cto50 C

-40 Cto60 C

0 to 90 % RH ( non-condensing )

2000m maximum

Degree 2

20 Mohms min. ( at 500 VDC )

2000 VAC, 50/60 Hz for 1 minute

10 - 55 Hz, 10 m/s for 2 hours

200 m/s ( 20 g )

Flame retardant polycarbonate

C21-----50mm(W) X 26.5mm(H) X 110.5mm(D),

98 mm depth behind panel

C91-----48mm(W) X 48mm(H) X 94mm(D),

86 mm depth behind panel

C21----- 120 grams

C91----- 140 grams

Operating Temperature : Storage

Temperature :

Humidity

: Altitude: Pollution: Insulation

Resistance :

Dielectric

Strength :

Vibration

Resistance : Shock

Resistance :

Moldings

Dimensions

Weight

-10 C

to 50 C

-40 C

to 60 C

to 90 % RH ( non-condensing )

2000m

maximum

Degree

Mohms min. ( at 500 VDC )

2000

VAC, 50/60 Hz for 1 minute

- 55 Hz, 10 m/s for 2 hours

200

m/s ( 20 g )

Flame

retardant polycarbonate

C21-----50mm(W)

X 26.5mm(H) X 110.5mm(D),

mm depth behind panel

C91-----48mm(W)

X 48mm(H) X 94mm(D),

mm depth behind panel

C21-----

120 grams

C91-----

140 grams

Protective Class :

EMC:

IP65 front panel for C21. IP30 front panel for C91. IP20 for terminals and housing with protective cover. All indoor use. EN61326

Protective Class :

EMC:

IP65

front panel for C21.

IP30

front panel for C91.

IP20

for terminals and housing with protective cover. All

indoor use.

EN61326

UM0C911C

UM0C911B

Chapter 7 Modbus CommunicationsChapter 7 Modbus Communications

This chapter specifies the Modbus Communications protocol as RS-232 or RS-485 interface module is installed. Only RTU mode is supported. Data is transmitted as eight-bit binary bytes with 1 start bit, 1 stop bit and optional parity checking (None, Even or Odd). Baud rate may be set to 2400, 4800, 9600, 14400, 19200, 28800 and 38400.

7-1 Functions Supported7-1 Functions Supported

Only function 03, 06 and 16 are available for this series of controllers. The message formats for each function are described as follows:

Query ( from master )

Query

Response ( from slave )Response

Slave address (0-255) Function code (3) Starting address of register Hi (0) Starting address of register Lo (0-79,

128-131) No. of words Hi (0) No. of words Lo (1-79) CRC16 Hi CRC16 Lo

Byte count Data 1 Hi Data 1 Lo Data 2 Hi Data 2 Lo

CRC16 Hi CRC16 Lo

Function 03: Read Holding RegistersFunction 03: Read Holding Registers

Function 06: Preset single RegisterFunction 06: Preset single Register

Query ( from master )Query

Response ( from slave )Response

Slave address (0-255) Function code (6) Register address Hi (0) Register address Lo (0-79, 128-131) Data Hi Data Lo CRC16 Hi CRC16 Lo

UM0C911B

Query ( from master )Query

Response ( from slave )Response

Slave address (0-255) Function code (16) Starting address of register Hi (0) Starting address of register Lo (0-79,

128-131) No. of words Hi (0) No. of words Lo (1-79) Byte count (2-158) Data 1 Hi Data 1 Lo Data 2 Hi Data 2 Lo

CRC16 Hi CRC16 Lo

Function 16: Preset Multiple RegistersFunction 16: Preset Multiple Registers

UM0C911A

Exception Code

Name

Cause

Bad function code

Function code is not supported by the controller

Illegal data address

Illegal data value

Data value out of range or attempt to write a read-only or protected data

7-2 Exception Responses7-2 Exception Responses

If the controller receives a message which contains a corrupted character (parity check error, framing error etc.), or if the CRC16 check fails, the controller ignores the message. However, if the controller receives a syntactically correct message which contains an illegal value, it will send an exception response, consisting of five bytes as follows:

slave address +offset function code + exception code + CRC16 Hi + CRC16 Lo

Where the offset function code is obtained by adding the function code with 128 (ie. function 3 becomes H'83), and the exception code is equal to the value contained in the following table:

UM0C911C

7-3 Parameter Table7-3 Parameter Table

Parameter

Scale Low

Scale High

Notes

SP1

SP2

SP3

LOCK

INPT

UNIT

INLO

INHI

SP1L

SP1H

SHIF

FILT

DISP

OUT1

O1TY

O1FT

O1HY

CYC1

OFST

RAMP

Set point 1

Set point 2

Set point 3

Lock code

Input sensor selection

Measuring unit

Decimal point position

Low scale value for linear input

High scale value for linear input

Low limit of SP1

High limit of SP1

PV shift value

Filter time constant

Display form ( for C21 )

P ( proportional ) band

Integral time

Derivative time

Output 1 function

Output 1 signal type

Output 1 failure transfer

Output 1 ON-OFF hysteresis

Output 1 cycle time

Offset value for P control

Ramp function

Ramp rate

0.0

-1999.9

0.0

65535

6553.5

65535

4553.6

6553.5

65535

4553.6

R/W

Parameter Notation

OUT2

O2TY

O2FT

O2HY

Output 2 function

Output 2 signal type

Output 2 failure transfer

Output 2 ON-OFF hysteresis

-1999.9

RELO

Retransmission low scale value

*4 *4

UM0C911C

Parameter

Scale Low

Scale High

Notes

CYC2

CPB

ALFN

ALMD

ALHY

ALFT

COMM

ADDR

BAUD

DATA

PARI

STOP

SEL1

SEL2

SEL3

SEL4

SEL5

SEL6

SEL7

SEL8

ADLO

ADHI

RTDL

RTDH

CJLO

CJHI

HOUR

Output 2 cycle time

Cooling P band

Heating-cooling dead band

Alarm function

Alarm opertion mode

Alarm hysteresis

Alarm failure transfer

Communication function

Address

Baud rate

Data bit count

Parity bit

Stop bit count

Selection 1

Selection 2

Selection 3

Selection 4

Selection 5

Selection 6

Selection 7

Selection 8

Date Code

Serial Number

Working hours of the controller

mV calibration low coefficient

mV calibration high coefficient

RTD calibration low coefficient

RTD calibration high coefficient

Cold junction calibration low coefficient

Cold junction calibration high coefficient

0.0

-1999.9

-199.99

-1999.9

6553.5

65535

4553.6

455.36

4553.6

R/W

Parameter Notation

DATE

SRNO

REHI *4 *4

Retransmission high scale value

UM0C911C

Parameter

Scale Low

Scale High

Notes

64, 128

65, 129

71,140

130

131

BPL1

BPL2

CJCL

TIMER

EROR

MODE

PROG

CMND

JOB1

JOB2

JOB3

MV1

MV2

Bumpless transfer of OP1

Bumpless transfer of OP2

Cold junction signal low

Process value

Current set point value

Remaining time of dwell timer

Error code *1

Operation mode & alarm status *2

Program code *3

Command code

Job code

Cold Junction Temperature

Reserved

OP1 control output value

OP2 control output value

0.00

0.000

-1999.9

0.00

-199.99

0.00

655.35

65.535

4553.6

65535

655.35

65535

455.36

65535

655.35

R/W

Parameter Notation

Read only, unless in manual control

*1: The error code is show in the first column of Table A.1.

*2: Definition for the value of MODE register

H'000X = Normal mode H'010X = Calibration mode H'020X = Auto-tuning mode H'030X = Manual control mode H'040X = Failure mode

H'0X00 = Alarm status is off H'0x01 = Alarm status is on

The alarm status is shown in MV2 instead of MODE for models C21 and C91.

CJCT

UM0C911C

*3: The PROG Code is defined in the following table:

Model No.

BTC-9100 BTC-8100 BTC-4100 BTC-7100

C21

C91

PROG Code

6.XX

11.XX 12.XX

13.XX

33.XX

34.XX

Where XX denotes the software version number. For example: PROG=34.18 means that the controller is C91 with software version

18.

*4: The scale high/low values are defined in the following table for SP1,

INLO, INHI, SP1L, SP1H, SHIF, PV, SV, RELO and REHI:

Conditions

Non-linear

input

Linear input

DP = 0

Linear input

DP = 1

Linear input

DP = 2

Linear input

DP = 3

Scale low

-1999.9 -19999 -1999.9 -199.99 -19.999

Scale high

4553.6

45536 4553.6 455.36 45.536

*5: The scale high/low values are defined in the following table for PB,

O1HY, RR, O2HY and ALHY:

Conditions

Non-linear

input

Linear input

DP = 0

Linear input

DP = 1

Linear input

DP = 2

Linear input

DP = 3

Scale low

0.0 0 0.0 0.00 0.000

Scale high

6553.5

65535 6553.5 655.35 65.535

*6: The scale high/low values are defined in the following table for SP3:

Conditions

Non-linear

input

Linear input

DP = 0

Linear input

DP = 1

Linear input

DP = 2

Linear input

DP = 3

Scale low

-1999.9 -19999 -1999.9 -199.99 -19.999

Scale high

4553.6

45536 4553.6 455.36 45.536

ALFN=1

(TIMR)

-1999.9

4553.6

*7: The scale high/low values are defined in the following table for SP2:

Conditions

Non-linear

input

Linear input

DP = 0

Linear input

DP = 1

Linear input

DP = 2

Linear input

DP = 3

Scale low

-1999.9 -19999 -1999.9 -199.99 -19.999

Scale high

4553.6

45536 4553.6 455.36 45.536

OUT2=1

(TIMR)

-1999.9

4553.6

For C21and C91

UM0C911A

Conditions

Non-linear

input

Linear input

DP = 0

Linear input

DP = 1

Linear input

DP = 2

Linear input

DP = 3

Scale low

-1999.9 -19999 -1999.9 -199.99 -19.999

Scale high

4553.6

45536 4553.6 455.36 45.536

For BTC-9100, BTC-8100, BTC-7100 and BTC-4100

7-4 Data Conversion7-4 Data Conversion

The word data are regarded as unsigned ( positive ) data in the Modbus message. However, the actual value of the parameter may be negative value with decimal point. The high/low scale values for each parameter are used for the purpose of such conversion.

Let M = Value of Modbus message

A = Actual value of the parameter SL = Scale low value of the parameter SH = Scale high value of the parameter

The conversion formulas are as follows:

65535 SH-SL

( A SL)

65535

SH-SL

M+SL

7-5 Communication Examples :7-5 Communication Examples :

Example 1: Down load the default values via the programming portExample 1: Down load the default values via the programming port

The programming port can perform Modbus communications regardless of the incorrect setup values of address, baud, parity, stop bit etc. It is especially useful during the first time configuration for the controller. The host must be set with 9600 baud rate, 8 data bits, even parity and 1 stop bit.

The Modbus message frame with hexadecimal values is shown as follows:

UM0C911C

Addr. Func.

Starting Addr.

No. of words

Bytes

SP1=25.0 SP2=10.0 SP3=10.0

01 10 00 00 00 34

00 00 00 01 00 00 00 01 4D 6D 51 C4

LOCK=0 INPT=1 UNIT=0 DP=1 INLO=-17.8 INHI=93.3

4D 6D 63 21 4E 1F 00 02 00 00 00 64

SP1L=-17.8 SP1H=537.8

SHIF=0.0

FILT=2 DISP=0 PB=10.0

00 64 00 FA 00 00 00 00 4E 1F 00 01

TI=100 TD=25.0 OUT1=0 O1TY=0 O1FT=0 O1HY=0.1

00 00 4E 1F 00 01 00 B4 00 64 4E

O2TY=0 O2FT=0 O2HY=0.1 CYC2=18.0 CPB=100

DB=0

00 01 00 02 00 01 00 00 00 00 00 02

ADDR=1 DATA=1 PARI=0 STOP=0

SEL1=2

BAUD=2

00 03 00 04 00

00 07 00 08 00

SEL2=3 SEL4=6 SEL5=7 SEL6=8

SEL7=10

SEL3=4

Hi Lo

SEL8=17

CRC16

00 B4 00 FA 00 00 00 00 00 02 4E

CYC1=18.0 OFST=25.0 RAMP=0 RR=0.0 OUT2=2

RELO=0.0

00 02 52 07 00 00 00 01 00 00 00 01

ALFN=2 ALMD=0 ALHY=0.1 ALFT=0

COMM=1

REHI=100.0

UM0C911C

Example 2: Read PV, SV, MV1 and MV2.Example 2: Read PV, SV, MV1 and MV2.

Send the following message to the controller via the COMM port or programming port:

03 00

04 Hi Lo

Addr. Func. Starting Addr. No. of words CRC16

Example 3: Perform Reset Function (same effect as pressing key)Example 3: Perform Reset Function (same effect as pressing key)

06 00 H'48

H'68

H'25 Hi Lo

Addr. Func. Register Addr. Data Hi/Lo CRC16

Example 4: Enter Auto-tuning ModeExample 4: Enter Auto-tuning Mode

06 00 H'48

H'68

H'28 Hi Lo

Addr. Func. Register Addr. Data Hi/Lo CRC16

Query

Example 5: Enter Manual Control Mode

06 00 H'48

H'68

H'27 Hi Lo

Addr. Func. Register Addr. Data Hi/Lo CRC16

Query

Example 6: Read All Parameters

03 00 00

H'50 Hi Lo

Addr. Func. Starting Addr. No. of words CRC16

Query

H'40 H'80

Example 7: Modify the Calibration Coefficient

06 00 H'48

H'68

H'2D Hi Lo

Addr. Func. Register Addr. Data Hi / Lo CRC16

Preset the CMND register with 26669 before attempting to change the calibration coefficient.

UM0C911A

Table A.1 Error Codes and Corrective ActionsTable A.1 Error Codes and Corrective Actions

Error Code

Display Symbol

Error Description

Corrective Action

Illegal setup values been used: Before COOL is used for OUT2, DIRT ( cooling action ) has already been used for OUT1, or PID mode is not used for OUT1 ( that is PB =0,and/orTI=0)

Communication error: bad function code

Correct the communication software to meet the protocol requirements.

Communication error: register address out of range

Don't issue an over-range

address to the slave.register

Communication error: attempt to write a read-only data or a protected data

Don't write a read-only data or a protected data to the slave.

Communication error: write a value which is out of range to a register

Don't write an over-range data to the slave register.

Fail to perform auto-tuning function

EEPROM can't be written correctly

Return to factory for repair.

Input sensor break, or input current below 1 mA if 4-20 mA is selected, or input voltage below

0.25V if 1 - 5V is selected

Replace input sensor.

A to D converter or related component(s) malfunction

Return to factory for repair.

Check and correct setup values of OUT2, PB, TI and OUT1. IF OUT2 is required for cooling control, the control should use PID mode ( PB = 0, TI = 0 ) and OUT1 should use reverse mode (heating action) , otherwise, don't use OUT2 for cooling control.

1.The PID values obtained after auto-tuning procedure are out of range. Retry auto-tuning.

2.Don't change set point value during auto-tuning procedure.

3.Use manual tuning instead of

auto-tuning.

3.Use manual tuning instead of

auto-tuning.

5. Don't set a zero value for TI.5. Don't set a zero value for TI.

4. Don't set a zero value for PB.4. Don't set a zero value for PB.

6. Touch RESET key6. Touch RESET key

Cold junction compensation for thermocouple malfunction

Return to factory for repair.Return to factory for repair.

No products return can be accepted without a completed Return Material Authorization ( RMA ) form.

Brainchild Electronic Co. is pleased to offer suggestions on the use of its various products. However, Brainchild makes no warranties or representations of any sort regarding the fitness for use, or the application of its products by the Purchaser. The selection, application or use of Brainchild products is the Purchaser's responsibility. No claims will be allowed for any damages or losses, whether direct, indirect, incidental, special or consequential. Specifications are subject to change without notice. In addition, Brainchild reserves the right to make changes-without notification to Purchaser-to materials or processing that do not affect compliance with any applicable specification. Brainchild products are warranted to be free from defects in material and workmanship for two years after delivery to the first purchaser for use. An extended period is available with extra cost upon request. Brainchild's sole responsibility under this warranty, at Brainchild's option, is limited to replacement or repair, free of charge, or refund of purchase price within the warranty period specified. This warranty does not apply to damage resulting from transportation, alteration, misuse or abuse.

WARRANTY

RETURNS

UM0C911A

BRAINCHILD Electronic Co., Ltd.BRAINCHILD Electronic Co., Ltd.

No.209, Chung Yang Rd., Nan Kang Dist., Taipei, Taiwan, R.O.C. 115 Tel: 886-2-27861299 Fax: 886-2-27861395 web site: http://www.brainchild.com.tw

No.209, Chung Ya ng Rd., Nan Kang Dist., Taipei,

Ta i w an, R.O.C. 115

Te l :

886-2-27861299

Fax:

886-2-27861395

web

site: http://www.brainchild.com.tw

Brainchild C21, C91 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual