UNI-T UT321 User Manual Page 20
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- Table of contents
- TROUBLESHOOTING
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<Toc> <1. Installation>
IM 05D01D12-41E 6th Edition: Mar. 25, 2005-00
• Relay contact alarm output terminals: Not isolated between relay contact alarm
outputs. Isolated from other input/output terminals and internal circuit.
• RS-485 communication terminals: Not isolated from contact input terminals. Isolated
from other input/output terminals and internal circuit.
• Power terminals: Isolated from other input/output terminals and internal circuit.
• Grounding terminals: Isolated from other input/output terminals and internal circuit.
Environmental Conditions
• Normal operating conditions:
Ambient temperature: 0 to 50C (40C or less for side-by-side close installation)
The operating ambient temperature range is between 0C and 40C when the 24 V
DC loop power supply of the UT321 is used.
Temperature change rate: 10C/h or less
Ambient humidity: 20 to 90% RH (no condensation allowed)
Magnetic field: 400 A/m or less
Continuous vibration at 5 to 14 Hz: Full amplitude of 1.2 mm or less
Continuous vibration at 14 to 150 Hz: 4.9 m/s
2
or less
Short-period vibration: 14.7 m/s
2
, 15 seconds or less
Shock: 147 m/s
2
or less, 11 ms
Installation height: Height above sea level of 2000 m or less
Warm-up time: 30 minutes or more after power on
• Transportation and storage conditions:
Temperature: -25 to 70C
Temperature change rate: 20C/h or less
Humidity: 5 to 95% RH (no condensation allowed)
• Effects of changes in operating conditions
- Effects from changes in ambient temperature:
- On voltage or thermocouple input, 1 V/C or 0.01% of F.S./C,
whichever is larger
- On RTD input, 0.05C/C (ambient temperature) or less
- On analog output, 0.05% of F.S./C or less
- Effects from power supply fluctuation (within rated voltage range)
- On analog input, 1 V/10 V or 0.01% of F.S./10 V, whichever is
larger
- On analog output, 0.05% of F.S./10 V or less
- 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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