Micromod Micro-DCI: 53SL6000 Single Loop Controller Manual de usuario Pagina 52
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Table 6-1. Characterizer Parameters
(ProG Menu
→
chr Module)
Prompt Description Dft
K01 -
K26
Assignments for K01 through K26 for
the three segment (3SEG)
characterizer, linear segment (LSEG)
characterizer, the setpoint
programmer (PGrM), and the digital-
to-analog converter (DtoA) are as
follows
3SEG
(executes 5 third order
polynomials):
K01 - K06:
Six endpoints that
partition the 5
segments.
K07 - K10:
Segment 1 (equation 1)
coefficients.
K11 - K14:
Segment 2 (equation 2)
coefficients.
K15 - K18:
Segment 3 (equation 3)
coefficients.
K19 - K22:
Segment 4 (equation 4)
coefficients.
K23 - K26:
Segment 5 (equation 5)
coefficients.
LSEG
(13 ordered pairs for 12
segments. Each input value must
be greater than the previous one):
K01 - K13:
input coordinates.
K14 - K26:
output coordinates.
Ordered segment pairs are K01, K14;
K02, K15; etc.
PGrM:
K01 - K13:
Entered time intervals in
whole seconds. Negative
numbers not permitted.
K14 - K26:
Target analog output from
characterizer (per step).
DtoA:
K1:
B input ramp rate (up).
K2:
C input ramp rate (down).
K3:
Lower output limit.
K4:
Upper output limit.
0.0
6.2.1. 3SEG Mode
The third order polynomial segment characterizer
allows the user to define five adjacent segments.
Each segment has an independent third order poly-
nomial defining the relationship between the A in-
put value and the analog output value. Whenever
the A input value does not fall within any of the five
segments, a logical 1 value is produced at the char-
acterizer’s digital output; otherwise, a logical 0
value is present at the digital output. The charac-
terizer analog output value is forced to reflect the
value related to the nearest defined segment when-
ever the A input is outside all defined segments.
The five segments are defined by the constants K1
through K6. The values assigned to these con-
stants must be monotonically increasing, going
from K1 to K6, to ensure the segments are adja-
cent. Constants K7 through K26 are divided into
five groups, each with four constants. The group
acts as a set of coefficients for an individual seg-
ment’s polynomial as given by the equation and
table below:
Output
=
WA
3
+
XA
2
+
YA
+
Z
Equation Segment
WX Y Z
1 K1-K2 K7 K8 K9 K10
2 K2-K3 K11 K12 K13 K14
3 K3-K4 K15 K16 K17 K18
4 K4-K5 K19 K20 K21 K22
5 K5-K6 K23 K24 K25 K26
This characterizer mode provides the capability to
linearize complex curves (e.g., thermocouple
curves). A linearization example of an E-type ther-
mocouple (operating range -115
°
to 1000
°
C) with
the characterizer A input provided in millivolts is as
follows:
Eq. Segment
WXYZ
1 K1: -5.90
K2: 0.0
K7:
0.03947
K8:
0.1575
K9:
17.20
K10:
0.04199
2 K2: 0.0
K3: 13.42
K11:
0.004269
K12:
0.2143
K13:
17.01
K14:
0.02144
3 K3: 7.0
K4: 36.99
K15:
0.0007227
K16:
0.0769
K17:
15.12
K18:
9.264
4 K4: 36.99
K5: 61.02
K19:
0.0002274
K20:
0.02488
K21:
13.26
K22:
32.13
5 K5: 61.02
K6: 76.40
K23:
0.0001247
K24:
0.004976
K25:
11.95
K26:
60.8
Note: many of the values shown in this example
can not be entered directly at the front display
panel due to the limited size of the data entry dis-
play; however, the values given are easily loadable
via the communications network datalink interface
(requires the RS-485 option module).
6.2.2 LSEG Mode
The linear segment characterizer allows the user to
define a relationship between the A input and the
analog output value via a piecewise linear approxi-
mation. The approximation is made up of twelve
adjacent line segments. Each line segment end-
points are defined by two pairs of coordinates, re-
quiring thirteen coordinate pairs in all. The
coordinate values are stored in characterizer con-
stants K1-K26.
Micro-DCI
53SL6000 Controller
6-2
- INSTRUCTION MANUAL 1
- MicroMod Automation, Inc 2
- Table of Contents 3
- 4.0 Functional Overview 4-1 4
- 5.0 Inputs/Outputs (I/O) 5-1 4
- 9.0 Commissioning 9-1 6
- Appendix A: Glossary A-1 7
- Appendix D: Prompt List D-1 7
- List of Tables 8
- List of Figures 9
- Safety Summary 11
- READ FIRST 12
- 1.0 Introduction 13
- 1.2 Controller Model Numbers 15
- 1.3 Product Specifications 15
- Thermocouple List 18
- 2DI/2DO Option Module 18
- CPU Cycle Time 19
- Control Ranges 19
- 2.1 Inspection 20
- 2.2 Site Location 20
- 2.3 Panel Mounting 20
- 2.4 Power Connections 20
- 2.5 Signal Connections 22
- 2.5.4 Analog Output AO1 23
- Signal Wiring 24
- 2.7 2DI/2DO Module 25
- 2.9 Applying Power 26
- 2.9.1 Power-up Sequence 27
- 3.0 Display Panel 28
- 3.4 Operator Mode Overflow/ 31
- Underflow Indication 31
- 3.5 Engineer Mode 32
- Backward 33
- 3.6 Entering a Pass-Key 35
- 3.7 Offline Display Pattern 35
- 3.9 Display Alphanumerics 38
- 3.10 Engineer Mode Summary 38
- 4.0 Functional Overview 40
- 4.2 Detailed Block Diagram 41
- 5.0 Inputs/Outputs (I/O) 45
- Parameter Entries 46
- Table 5-6. RTD Types 47
- 5.4 Analog Output 1 (AO1) 48
- 5.5 Discrete Inputs 49
- 5.6 Discrete Outputs 49
- 6.1 Section Overview 51
- 6.2 Characterizer 51
- 6.2.1. 3SEG Mode 52
- 6.2.2 LSEG Mode 52
- 6.2.3 PrGM Mode 53
- 6.3 Math Function Block 54
- 6.3.1 ALG Mode 55
- 6.3.2 SuMM Mode 55
- 6.3.3 PoLY Mode 56
- 6.3.4 PoWr Mode 56
- 6.3.5 LoG Mode 56
- 6.3.6 LiM Mode 56
- 57
- 7.0 Control Scheme Block 59
- Schemes 64
- Control Scheme 65
- 7.7 Control Loop Parameters 83
- 7.8 Control Scheme Signal 86
- 8.0 Eight Control Strategies 88
- 8.2 Analog Back-Up Control 90
- 8.3 Ratio Control 92
- 8.4 Auto/Manual Selector 94
- Out 95
- 8.4.8 SchM Selection 95
- 8.5.2 AI2 - Primary PV Input 96
- 8.6.1 AI1 - Primary PV Input 98
- 8.7 Dual Indicator with 100
- Re-Transmitted PV 100
- Control 101
- 8.8.3 Speed Factor Adjusting 103
- 9.0 Commissioning 104
- 9.8 Easy-Tune 106
- Actual Curve 107
- Approximated Curve 107
- 9.8.1 Executing Easy-Tune 108
- Appendix A: Glossary 112
- B.1 Overview 118
- B.2 Parts List 118
- B.3 Removal and Replacement 119
- Procedure 120
- B.5 Defaulting the Database 123
- B.6 Analog Input/Output 123
- Calibration Values 123
- B.7 Watchdog LED 123
- C.1 Overview 124
- C.2 Configuring the System 124
- Module for Datalink 124
- C.3 Protocol 124
- C.3.1 Message Types 125
- C.3.2 Transaction Examples 125
- Reference 126
- Cross Reference 128
- Reference 129
- via Datalink 131
- Appendix D: Prompt List 132
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