UNI-T UT321 User Manual Page 45
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<Toc> <3. Operations>
3-5
IM 05D01D12-41E 6th Edition: Mar. 25, 2005-00
5.
Press the
SET/ENT
key once to register the
setpoint. (This starts auto-tuning.)
If the
SET/ENT
key is pressed when AT = OFF,
auto-tuning will be cancelled. In this case,
PID contains the value existing before
auto-tuning.
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
6.
During auto-tuning, the panel indications
become as shown below.
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
MAN lamp
blinks.
Auto-tuning is complete when the MAN
lamp goes off.
3.4 Setting PID Manually
If you know the values to be set or if suitable PID constants cannot be obtained by auto-
tuning, follow the procedure below to set values.
1.
Bring the operating display into view
(display appears at power on).
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
Displays
target setpoint.
Displays PV.
2.
Press the
SET/ENT
key for more than 3 sec-
onds to call up the menu “OP.PA”.
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
Displays
menu “OP.PA”.
3.
Press the
SET/ENT
key several times to
display the parameter “PID”.
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
Displays
parameter
“PID”.
4.
Press the key once to display “1Gr”.
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
Blinks during
change.
5.
Press the
SET/ENT
key once to register the
setpoints.
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
6.
Press the
SET/ENT
key once to display the
parameter “1.P” (proportional band for
1.SP).
PV
MAN
A/M
SP
AL123
SP
234
SET/ENT
Displays
parameter
“1.P”.
- 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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