UNI-T UT321 User Manual download pdf (Page 21)

1-13

IM 05D01D12-41E 6th Edition: Mar. 25, 2005-00

1.5 Terminal Wiring Diagrams

NOTE

Do not use unassigned terminals as relay terminals.

Terminal wiring diagrams are shown on and after the next page.

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Models UT351/UT321 1
User’s Manual 1
Introduction 3
■ Safety Precautions 4
■ Force Majeure 4
Modification 5
CONTENTS 7
<Int> <Rev> 8
1. Installation 9
1.2 How to Install 10
■ How to Install 12
● Recommended Terminal Lugs 14
PV Input Signals 15
Loop Power Supply 15
Retransmission Output 16
Control Output 16
Contact Inputs 17
Contact Outputs 17
Display Specifications 17
Safety and EMC Standards 18
Environmental Conditions 20
1.5 Terminal Wiring Diagrams 21
Receiving 4-20 mA DC Current 22
Blank Page 26
2. Initial Settings 27
IMPORTANT 28
(Setting First at Power-on) 29
Displays PV 30
2.3 Changing PV Input Type 32
Displays 33
2.5 Changing Alarm Type 35
Blinks during 36
■ List of Alarm Types 37
Stand-by Action 38
“Active Color PV Display” 39
3. Operations 41
● SP Display 42
● Heating/Cooling OUT Display 42
Displays 43
3.4 Setting PID Manually 45
3.5 Setting Alarm Setpoints 46
“SP.NO” 48
Each time you press the 49
Operation 50
4.1 Troubleshooting 53
■ Errors at Power on 54
4.2 Maintenance 57
Target Model Part No 58
UT351 T9115YD 1 58
UT321 T9115YE 1 58
Sales Unit 58
Attaching Terminal Cover 59
Center of the bottom gasket 60
View from the bottom 60
Manufacturer OMRON 61
Model G6B-2114P-FD-US-P6B 61
Power supply 12 V DC 61
5. Parameters 63
UT351/UT321 Parameter Map 64
5.2 Lists of Parameters 66
● PID-related Parameters 68
■ Auto-tuning 69
■ PID Switching (Zone PID) 71
■ Setup Parameters 72
Ref.2.1(2) 73
Ref.4.1(2) 73
Ref.4.1(4) 73
Ref.2.1(4) 73
Ref.2.2(1) 76
Ref.3.1(1) 76
■ External RJC 79
100(%) 100(%)50 81
■ Cycle Time 82
6. Function Block Diagram and 83
Descriptions 83
■ PV Input 86
■ Remote Input 86
■ Contact Input 87
■ Target Setpoint and PID 88
■ Control Output 89
■ Contact Output 89
■ Retransmission Output 90
■ 15 V DC Loop Power Supply 90
Revision Information 91

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UNI-T UT321 User Manual Page 21

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