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Temperature Controller
EJ1
Omron EJ1 User Manual
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46
Controlling G3ZA
Controllers Connected t
o Output Devices
Section 3-4
Using the G3ZA's MV
Calculations for Slope
(Gradie
nt) Control
EJ1
G3ZA Multi-channel Power Controller
RS-485
MV1
MV2
MV3
MV4
MV1
a11
a12
a13
a14
ch1
ch2
ch3
ch4
Unit
No.1
MV2
a21
a22
a23
a24
Unit
No.2
MV3
a31
a32
a33
a34
Unit
No.3
MV4
a41
a42
a43
a44
Unit
No.4
RS-485
RS-485
RS-485
CN1
Channel 1
sensor input
Channel 2
sensor input
Channel 3
sensor input
Channel 4
sensor input
Control value =
Source channel MV
×
Slope (a)
+ Offset (b)
SP1
SP2
SP3
SP4
PV1
PV2
PV3
PV4
PID
PID
PID
PID
MV 11
MV 12
MV 13
MV 14
MV 21
MV 22
MV 23
MV 24
MV 31
MV 32
MV 33
MV 34
MV 41
MV 42
MV 43
MV 44
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
SSR
b11
b12
b13
b14
b21
b22
b23
b24
b31
b32
b33
b34
b41
b42
b43
b44
66
68
Table of Contents
Default Chapter
18
Table of Contents
18
Section 1
22
Outline
22
Names of Parts
23
Appearance
23
Names of Parts on Front Panel
23
Meanings of Indicators
23
Using Setting Switches
24
I/O Configuration and Main Functions
26
I/O Configuration
26
Main Unit Functions
27
Model Number Legend
28
Internal Block Diagrams
30
Section 2
32
Preparations
32
Installation
33
Wiring Terminals
37
Using Tool Ports
46
Unit Configuration Examples
47
Section 3
54
Typical Control Examples
54
Minimum Configuration for Control
55
Application
55
Wiring
56
Setup
56
Adjustment
58
Multi-Channel Control
59
Application
59
Wiring
60
Setup
60
Adjustment
61
Control Linked to a Host Device
62
Application
62
Wiring
63
Setup
64
Adjustment
65
Controlling G3ZA Controllers Connected to Output Devices
66
Application
66
Wiring
68
Setup
69
Adjustment
69
Section 4
70
Basic Units (TC4 and TC2) Functions
70
Setting Input Specifications
72
Input Type
72
Temperature Inputs
73
Analog Inputs
73
Input Shift (Correction)
74
Input Filter
77
Setting Output Specifications
78
Control Output Assignments
78
Control Output Method
78
Output on Scheduling Function
79
Output Scaling
81
Setting Control Specifications
83
Starting and Stopping Control
83
Selecting the Control Method
84
Selecting the Output Mode
87
Setting the Set Point
89
Setting the SP Ramp
90
Remote SP
91
Setting the Manipulated Variable (MV)
94
Tuning
96
Disturbance Overshoot Adjustment Function
99
4-3-10 Operation During Errors
100
Setting Alarm Specifications
102
Alarm Types
102
Alarm Value
103
Alarm Hysteresis
103
Standby Sequence
104
Alarm Latch
104
Closed in Alarm or Open in Alarm
105
Alarm Delay
105
Alarm SP Selection
106
Channel Alarm Status
106
Detecting Current Errors
107
CT Assignment (TC2)
107
Heater Burnout Alarm (HB Alarm)
107
Heater Short Alarm (HS Alarm)
114
Heater Overcurrent Alarm (OC Alarm)
116
Using the Loop Break Alarm (LBA)
118
Loop Burnout Alarm (LBA)
118
Other Functions (TC4 and TC2)
120
Bank Function
120
Event Inputs (TC2)
121
Internal Buses (TC4 and TC2)
122
Using G3ZA Multi-Channel Power Controllers
124
Section 5
128
Advanced Unit (HFU) Functions
128
Programless Communications
129
Connectable Devices
129
Checking Operation
130
Detailed Settings
138
Description of Operation
144
Operation Command Codes for Programless Communications
154
Programless Communications Errors
158
Other HFU Functions
159
Auxiliary Output Allocations
159
HFU Internal Buses
159
Section 6
162
Communications (Compoway/F)
162
Communications Settings
163
Communications Specifications
163
Unit Number Setting
164
Other Communications Settings
164
Send Data Wait Time
164
Frame Configuration
165
FINS-Mini Text
167
PDU Structure
167
Variable Type and Address
167
Number of Elements
167
Communications Data
168
List of FINS-Mini Command Services
168
Detailed Description of Services
169
Read from Variable Area
169
Write to Variable Area
170
Composite Read from Variable Area
171
Composite Write to Variable Area
172
Composite Registration Read
173
Composite Read Registration
174
Composite Read Registration Confirmation
175
Controller Attribute Read
176
Controller Status Read
177
6-4-10 Echoback Test
178
Operation Commands
179
Section 7
184
Errors and Error Processing
184
Things to Check First
185
Determining Errors from Indicators
186
Determining the Error from the Status
188
Determining the Error from the Current Situation for Communications Errors
193
Determining the Error from the Current Situation for Temperature Measurement Errors
202
Determining the Error from the Current Situation for Temperature Control Errors
203
Determining the Error from the Current Situation for Output Errors
205
Determining the Error from the Current Situation for Heater Burnout Alarm Errors
206
Appendix
208
Specifications
209
Ratings
209
Characteristics
210
Current Transformer
211
Specifications
211
Dimensions
211
ASCII Table
212
Sensor Input Ranges
213
Parameter List
214
Status Lists
230
Parameters that Can be Allocated for Programless Communications
242
Index
244
Revision History
252
4
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Omron EJ1 Specifications
General
Brand
Omron
Model
EJ1
Category
Temperature Controller
Language
English
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