Love Controls LCU 032 User manual

Process Temperature Controller
INSTRUCTION MANUAL
LCU 032
LCu032 9/6/05 1:34 PM Page 1

LOVE CONTROLS
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LCU032
LCU032
Built-in Fuzzy function “The Smallest Temperature Controller”
•Fuzzy
•Alarm Output
•Input Correction
• °C/°F Selectable
• Universal Input-Output
• Output Limits
• IP65 Front Facia
• Interface (RS485)
• Heating / Cooling
• Auto Tuning (Standard,
Low PV type)
Features
Model: LCU032
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CONTENTS
1. SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . .P.5
2. INSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P.7
3. MODELS & SUFFIX CODE . . . . . . . . . . . . . . . . . . . . . . .P.7
4. DIMENSIONS & PANEL CUTOUT . . . . . . . . . . . . . . . . . .P.7
5. INPUT & OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P.8
6. OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P.9
7. DISPLAY & PARAMETER . . . . . . . . . . . . . . . . . . . . . . . .P.10
8. PARAMETER SETTING . . . . . . . . . . . . . . . . . . . . . . . . .P.11
9. SETTING MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P.12
10. SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P.17
11. ALARM TYPE AND CODE . . . . . . . . . . . . . . . . . . . . . .P.21
LOVE CONTROLS
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Before using, please read this (SAFETY INFORMATION) and then this controller.
It is most important that the instructions in this manual are followed when using this instrument.
Please keep this manual for future reference.
Precautions are classified in WARNING and CAUTION.
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WARNING There is a possibility of death or heavy injury when handling in wrong way.
CAUTION There is a possibility of injury or physical damage when handling in wrong way.
WARNING
1 Caution on wiring
•Use an external protection circuit if a fault in the control loop could possibly lead to a serious prob-
lem.
2 Power supply
•Afuse is fitted inside the instrument. (Fuse rating 250V, 1A)
•Use a rated voltage to prevent damage or trouble.
• To avoid electrical shock or damage, do not turn ON the power until the wiring is completed.
3 Prohibit use in gas atmosphere
Do not use it at a place exposed to combustible or explosive gas.
4 Handling of unit
•To avoid malfunction, electrical shock or fire, this unit must not be disassembled or repaired.
•Do not touch the terminals to avoid electrical shock or malfunction.
5 Caution on maintenance
•Turn OFF the power before mounting or removing the instrument.
•To ensure continuous and safe operation of the instrument, periodical maintenance is recommend-
ed. Some parts are limited in life.
•The warranty period is 1 year only if using in the correct way.
CAUTION
1 Caution on handling
Do not install the instrument under any of the following conditions.
•The ambient temperature exceeds 0 ~ 50°C
•The ambient humidity exceeds 20 ~ 90%RH.
•Aplace where temperature changes suddenly or icing occurs.
•Aplace exposed to corrosive gas or combustible gas.
•Vibration or shock is likely to be transmitted to the instrument.
•Aplace exposed to water, oil, chemicals, steam, sunlight.
•Aplace exposed to much dust, salt or iron.
•Aplace with much inductive disturbance, static electricity, magnetism noise.
•Aplace where heat such as radiant heat stays.
SAFETY INFORMATION
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2 Installation
•Attach the brackets (2 units) on the fixed halls and tighten with a screwdriver. Fixing torque is about
14.7N. cm (1.5kg.cm) (Care should be taken not to tighten forcedly.)
3 Caution on terminal connections
•Use a compensating cable with thermocouple.
•For R.T.D input use a cable which is a small lead wire resistance and without resistance difference to
3wires.
•If the wiring has noise, use the following step: connect a surge absorber to the conductor coil side if
the conductors are connected to the load output, such as the relay contact output.
•Use an insulating transformer with a noise filter when the power supply has much noise.
•Noise filter should be mounted on a panel which has been earthed and the wiring between the noise
filter output and the instrument power terminals should be shorten.
•It is effective to use a twisted cable for power supply against noise.
•The heater power supply and the instrument power supply should be connected using the same
power supply when a heater break alarm.
•Time for preparation of contact output is required at power ON. When the output signal is used for
an external interlock circuit, connect a delay relay.
4 Other
•Do not use organic solvents such as alcohol, benzine when cleaning. (Use neutral detergent)
5 Caution on key operation / trouble
•If alarm function is not set correctly, alarm output can not be operated at a trouble.
Be sure to check the alarm operation.
•If the input cable is disconnected, the display shows “ boUt”.
When replacing the sensor, please turn OFF the power supply
CAUTION
1 For connection
• To avoid inductive noise to input wires separate from the power and output wires.
• Keep input wires away from output wires and use shielded wires.
2 For load circuit connection
•Use an extra relay when the frequency of operation is rather high. In this case, SSR output type is
Recommended.
• Electromagnetic switch : Proportional cycle time is Min. 30 sec
• SSR : Proportional cycle time is Min. 1 sec
• Contact output life : Mechanical : Min. 10 million times (no load)
Electrical : Min. 100 thousand times (rated load)
• SSR drive pulse voltage, DC 4~20mA are not insulated with internal circuit.
Use non-grounded sensor to R.T.D and thermocouple.
3 For waterproof (Waterproof type)
The instrument has IP65. Use rubber packing when installing the instrument to panel.
Please attach the rubber in correct way.
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INSTRUCTION
LCU032-  
Process Temperature Controller DIN48 x 24 mm (1/32 DIN)
Control type 0 : Universal
1 : Heating / Cooling
Optional 0 : None
1 : RS485
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This instrument has process-value (PV) and set-value (SV) each 4 digits with 7 segment FND. This
instrument is divided Universal type and heating-cooling type and each setting items has 10 groups.
Function and feature : Group P.I.D, Universal-input (19 types), Universal-output (Relay, SSR, Current),
Local input, Remote input, External contact input, Ramp function, Auto-tuning 2 types (standard type,
low PV type), Retransmission, Communication (RS485 /422), Power supply for sensor, 20 types of
alarm, Sampling cycle 250ms, ¸±0.5% of FS high accuracy.
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MODEL & SUFFIX CODE
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DIMENSIONS & PANEL CUTOUT
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INPUT & OUTPUT
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OPERATION
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DISPLAY & PARAMETER
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LCU032 Temperature Controller has three screens: “Operation Screen”, “Menu Screen”, and “Group
Indication Level Selection Screen.”
Menu Screen is composed of each group; therefore, concerned parameters can be grasped at a
glance. It is the simplest and safest design for users.
Parameters should be set in order of “Input Group > Output Group > Other Group.”
Input Group and Output Group must be set first since the parameters affect other groups.
This Controllers Group Indication Level Mode ( LEHL) has three levels from Level 1 to Level 3.
Level 1 is composed of the groups which users frequently modify and check during operation.
Level 2 adds enhanced features for more convenient use of the Controller to Level 1.
Level 3 adds the groups for setting the Controller to Level 2; and is composed of the parameters which
are set only one time in the first setting.
• The above-mentioned items do not apply to indicator.
• Groups Shown Per Display (DISP)
DISP
1
2
3
GROUP INDICATION LEVEL
G.CTL
G.CTL, G.AT, G.PID, G.ALM, G.TRN, G.COM
G.CTL, G.AT, G.PID, G.ALM, G.TRN, G.COM, G.OUT, G.IN
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