LT830 INE-348

LT830 INE-348
INST.№ INE-348
LT830 series
Digital Indicating Controller
Instruction Manual
◆ Read this instruction manual carefully to use your controller safely and avoid troubles.
◆ If your controller is with optional communications interface, read the separate instruction manual , too.
Checking of Model No.
Check Model No. of your controller and
its specifications.
To agents or distributors
Make sure to pass this instruction
manual to final customers.
■Model code
■Front view ■Accessories/parts
 Notes on safety
1. Installation to a panel
2. Before wirings
3. Terminal arrangement
4. Troubleshooting/Maintenance
1
1
1
1
2
2
2
To our valuable customers
Keep this instruction manual
disposing of your controller.
5. Specifications
6. Parameter directory
7. List of parameters
8. Description of parameters
9. Setting of parameters
10. Operation
11. Event mode and output
until
2
3
3
3
4
4
4
■ Model code You can check it by keys. → Refer to [4. Troubleshooting/Maintenance].
①②
③④⑤
L T 83 □□0000―□□□ … Size: 48 x 48 (mm)
①Control output 1 (heating)
1: On-off pulse type
5: SSR drive pulse type
②Control output 2 (cooling) (option)
0: None
1: On-off pulse type
* This option is to be combined with the
event output. Specify “1” or “2” at ③.
③2 points of event output +Communications
④Terminal type and water-proof specs.
IF(option)+heater disconnection(CT) (option)
(option)
0: None
1: 2 points of event output
2: 2 points of event output +
Communications IF+
heater disconnection(CT)
* For combination with Control output 2, 1
point of event output is only available.
* For socket type, heater disconnection is
nothing.
0:Terminal block type +
Without waterproof
1: Terminal block type +
With waterproof (option)
2: Socket type +
Without waterproof (option)
3: Socket type +
With waterproof (option)
* The waterproof type is equivalent to
IP66.
⑤Power supply
As for with a communication interface, we have
prepared the handling description of a separate
volume for http://www.chino.co.jp.
A: 100 to 240VAC
D: 24V AC/DC (Option)
32-8, KUMANO-CHO, ITABASHI-KU, TOKYO 173-8632
Telephone: + 81-3-3956-2171
Facsimile: + 81-3-3956-0915
E - m a i l: [email protected]
W e b s i t e: http://www.chino.co.jp/
Printed in Japan
■Accessories/parts (sold separately)
■ Front view
● Accessories
Fixture
Instruction manual (this manual)
③
①
②
④
⑤
● Parts (sold separately)
Terminal cover
Shunt resistor for current input (250Ω)
Contact protective element (for light loads)
Contact protective element (for heavy loads)
⑥
Name
①Upper LED (Green)
(Enter) key
Function
O:Display of measured value (PV)
S :Display of parameter item
O:Display of control setting value (SV), or blank
Display of (SV rise ramp),or (SV fall ramp)
S:Display of the contents of a setting
O ・ S:Blinks during the auto-tuning is executed.
O ・ S:Lights when the control output 1 (heating) is outputted.
O ・S:Lights when the control output 2 (cooling) is outputted.
O・ S:Lights when event1 is active.
O・S:Lights when event2 is active.
S:For down of parameter or stepping of mode
O:Decreases the setting value (SV).
S:For up of parameter or stepping of mode
O:Increases the setting value (SV).
:For stepping of parameter item in each mode
O:For stepping of parameter item in
S
operation mode
O・S :For storing settings into memory (in setting mode – A dot blinks.)
SEL 2 sec.
O・S:Switching of operation screen ↔ mode screen, Quick return of setting screens in a mode screen
②Lower LED (Red)
AT (Green)
OUT1 (Green)
③Status OUT2 (Green)
EV1(Red)
EV2(Red)
④ ▽(down)key
⑤ △(up)key
(Select) key
⑥
2 pieces
1 copy
O :Operation screen
S :Monitor or setting screen

Notes on safety
1. Precondition for use
Your controller is designed for installation in indoor panels.
International safety standards Conformity schedule
· Front panel
equivalent to IP66 under IEC529
(option)
Not available in closed installation
· CE
EMC: EN61326+A1+A2 *
Safety: EN61010-1
Overvoltage category II, Pollution degree 2
* The displayed value and the output value equivalent to
maximum ±10% or ±2mV may vary under the test
environment of EMC directive.
2. Symbols used in your controller
· Used in your controller
Label
Name
Explanation
Alert
Indicates the locations where there is a
symbol risk of electrical shock or injury.
mark
· Used in this manual
Caution
Note
Warning/Caution
1. Confirmation of power voltage and
wirings
Confirm the power voltage and wirings before turning
on the power supply.
2. Termination of wirings
Use crimping terminals with insulation sleeve.
3. Power switch
For the power supply, prepare a switch and an
overcurrent protection device within 3m of your
controller.
4. Safety measures for output
Control output or event output may not be correct due
to wrong operation, malfunction, sensor abnormal or
other factors.
Prepare safety measures at final products side if
required.
5. Prohibition of repair and modification
To avoid electrical shock, fire and malfunction, other
personnel than the service personnel authorized by
CHINO are prohibited to repair, modify or disassemble
your controller.
6. Turning off the power supply
When you feel or find abnormal conditions such as
smelling or heating, turn off the power supply and
contact your agent of CHINO Corporation.
Indicates the locations where there is a risk
of electrical shock or injury.
Indicates the items that your controller may
result in insufficient functioning.
■ Request for ensuring against risks
1. Environment
Make sure not to use your controllers in
・places containing corrosive gas (ex. sulfuric gas, etc.),
powder or dust,
・places containing flammable or explosive gas,
・places flooded or covered with oil,
・places subject to significant change of temperature
and strong wind
・places where is significantly influenced by vibration
and shock
・places subject to direct sunlight and dew
condensation.
2. Unused terminals
Make sure not to wire to unused terminals.
3. Inductive noise
・Make sure to separate all wirings to your controller
from power line with high voltage or high current.
・Install your controller apart from equipment generating
strong magnetic field, electrical field or high
frequency.
4. Ventilation
Make sure not to block the ventilation openings to
ensure the heat dissipating space for your controller.
5. Cleaning
When cleaning is required, make sure not to use
chemicals (ex. thinner, benzene, etc.) affecting
molded parts.
Use alcohol available in markets.
6. Safety measures at final products side
・To ensure safety in the event of malfunction of your
controller, prepare separate safety measures.
・Prepare an enclosure for protection against fire when
installing your controller.
・Prepare safety measures to prevent contact with
terminals.
1
1. Installation to a panel
Caution
To avoid electrical shock, make sure to turn off the power supply and then install your controller to
a panel.
・Installation condition
・Thickness of panel: Steel sheet of 1 to 10mm
Exception: Panel thickness for the socket type: 1 to 3mm
・ Installation angle: Within 10º for forward tilting and backward tilting, and
within 15º for left and right
① Insert the terminal board side of your controller into the angular hole of the panel cutout. When your controller is with optional
water-proof, mount the rubber packing attached and then insert your controller.
② Insert the fixtures (2 pieces attached) into the mounting holes of your controller (for up and down sides), and then push them into
the panel.
③ For the optional water-proof only, tighten the screw of the fixture. [Tightening torque]: 0.5 to 0.7 N・m
■ Panel cutout
(Separate installation)
Water-proof
packing (option)
(Closed installation – See note.)
70
45 +0.6
0
Mounting hole
45 +0.6
0
70
48×N-2.5+0.6
0
45 +0.6
0
N: Quantity
Note) Optional water-proof is not available in
closed installation.
(Installation – up/down)
Panel
(Fixture)
For optional
water-proof only
Mounting hook
■ Outside dimensions
(Terminal block type)
48
44.6×44.6
48
69
47
48
69
44.6×44.6
(Socket type)
48
7
80
102
7
73.6
95
14.4
2. Before wirings
CAUTION
Note
Note
① To avoid electrical shock, make sure to turn off the power supply and then work all wirings.
② Work all wirings by only personnel who have basic knowledge of wiring and
experienced the actual works.
1. Use a single-phase power supply with less noise, distortion of wave, voltage fluctuation to avoid malfunction of your
controller.
2. If the power supply has noise too much, prepare a noise filter or other measures separately.
3. This unit has no built-in fuse. Provide a fuse (delay type, rated current: 1A, rated voltage: 250V) for safety.
4. Please supply the power supply from a SELV circuit (power supply secured in safety) to 24V power supply
specification.
Wires and crimping terminal covered by insulation sleeve
Terminal name
Wire type
Power
terminals
Relay output
terminals
(M3.5)
600V vinylinsulated wires
(Note)
Other terminals
(M3.5)
See “Notes on
wirings”.
Tightening
torque
Crimping terminal covered by insulation sleeve
・O type
B
・Y type
A
B
・O type (Y type is usable.)
A
Max. 0.8N・m
* Dimension of terminal
A: 3.7mm or more
B: 7.0mm or less
(Note) IEC 60227-3 ANSI/UL817, CSA C22.2 No. 49, AWG (American Wire Gauge) 16 to 22
■ Cautions on wirings
1. Power terminals
“Power supply” label is provided on the side of your
controller.
Your controller may be damaged or broken if the
voltage specified is not applied to.
2. Input terminals
1) Allowable input voltage
Input type
DC voltage, thermocouple
Resistance thermometer
Allowable input voltage
-5V to +8V DC
±5V DC
2) Thermocouple
・Connect a thermocouple (or an extension wire) to
input terminals.
Do not connect the same thermocouple to other
Note instruments in parallel.
3) Resistance thermometer
・Use a 3-core cord with same resistance per each
wire to avoid measurement error.
Do not connect the same resistance thermometer
Note to other instruments in parallel.
3. Control/Event output terminals
1) On-off pulse output
・Contact ratings
(Resistive load) 3A (100 to 240VAC, 30VDC *)
(Inductive load) 1.5A (100 to 240VAC, 30VDC *)
* Minimum load 5VDC 10mA or more
・Electrical life of relay 1 hundred thousand times
・Buffer relay and contact protection element → See
3 Terminal arrangement.
Make sure to connect a load through a buffer relay.
To extend the life of relay contact, mount a contact
protection element in parallel to the coil of the
buffer relay.
2) Current output
・Load resistance 600Ω or less
3) SSR drive pulse output
・On/off voltage 12VDC ± 20%/0.8VDC or less
4) Voltage output
・Output resistance About 10Ω
・Load resistance 50kΩ or more
5) Event output
・Contact ratings
(Resistive load) 3A (100 to 240VAC 30VDC *)
(Inductive load) 1.5A (100 to 240VAC 30VDC *)
・Electrical life 1 hundred thousand times
* Minimum load 5VDC 10mA or more
* The relay is not replaceable. Make sure to use
a buffer relay.
4. Mounting of terminal cover (sold separately)
A terminal cover (option) is available for avoiding
electrical shock. If you have it, mount (push) the cover
when all wirings are completed.
Contact protection element
Mount a contact protection element for
on-off pulse type.
● For light load (less than 0.2A)
CX-CR1 (0.01µF + 120Ω)
● For heavy load (more than 0.2A)
CX-CR2 (0.5µF + 47Ω)
H (NC)
L (NO)
C (COM)
3. Terminal arrangement
(1) Terminal block type
Event output option /Control output option
Event output option
№
Control output 1 (heating)
On-off
SSR drive
№
pulse type
pulse type
①
COM
+
②
NO
−
Control output 2 option
EV1
Buffer relay
EV1
Event1
⑫
EV2
Buffer relay
NO
⑬
COM
12
Power
COM
Control
Output 2
(Cooling)
⑪
Power supply
Measuring input
№
Voltage
(current )
Thermocouple
+
−
+
−
③
④
⑤
Resistance
thermometer
A
B
B
(2) Socket type
№
⑤
④
COM
NO
+
−
Thermocouple
+
−
+
−
Note
L (Live)
+
⑮
N (Neutral)
−
CT option
input
SA
⑨
CT
⑦
SB
⑩
CT
⑧
SG
⑥
RS-485
Open terminal
Event output option /Control output option
Event output option
№
EV1
Buffer relay
EV1
Event1
⑧
EV2
Buffer relay
NO
⑨
COM
12
Power
COM
Control
Output 2
(Cooling)
⑦
Resistance
thermometer
A
B
B
№
AC
DC
⑩
L (Live)
+
⑪
N (Neutral)
−
*Socket for DIN rail mount.
Connect to communication terminals through the connector on the bottom surface.
Recommended model: ATC180041
(Refer to the instruction manual for communications interface.)
Note
Not
(Matsushita Electric Works)
Make sure not to use unused terminals for relaying.
Basic connection
Buffer relay and contact protection element
Your controller
Buffer relay
Z
P/S
1. CT input
2. Event output
Heater
⑨
Load
NO
COM
Control output 2 option
Power supply
Voltage
(current )
③
②
①
⑭
№
Measuring input
№
DC
Interface
№
Control output 1 (heating)
SSR drive
pulse type
AC
Communications option
⑥
On-off
pulse type
№
Z: Contact protection element *
* Prepare a CR filter (C: about 0.01µF + R: about 120Ω) for
AC power supply.
Prepare a diode for DC power supply.
⑪
⑫
Z R Z R
⑩
⑬
CT
-
Powe
+
R Buffer relay Z Contact protection element
4. Troubleshooting/Maintenance
4.1 Troubleshooting
Trouble
Check/Cause/Action
① Is the rated power (100 to 240V AC, 24VAC/DC) supplied to the power terminals?
No control output
② Is the connection to the power terminals (L, N / +, - ) correctly?
③ Turn off the power supply and then tern it on again. If the operation is normal, CPU may be
malfunctioned by electrical noise. In this case, prepare measures to suppress the noise.
“Run/Ready” may be set at“”. Set it to “”.
Late transition
The setting value of “Output variation limiter” may be low. Set it to be higher.
Stable at above to setpoint
The control may be P and D only due to low set value of “ARW-H”. Set it to be higher.
The control may be P and D only due to low set value (minus value) of “ARW-L”. Set it to be
higher.
① The derivative time may be too short. Set it to be long.
② The derivative time may be too long. Set it to be short.
Set the “targeted value filter” to ON.
1) Are input terminals connected securely? 2) Is the input signal (sensor) stable? 3) Make sure
that a sensor (thermocouple or resistance thermometer) is not connected in parallel to other
instruments.
1) Is the input type correct? 2) Is the “engineering unit” correct? 3) For the thermocouple input, is
a thermocouple or an extension wire connected to the input terminals?
The setting value of “SV limiter L” or “SV limiter H” may be not correct.
Please check the setting value of “SV rising ramp” or “SV falling ramp”. (If it has been set, its
ramp operation functions at the selection of SV, the change of SV, etc.)
Check if this unit is locked.
Not operated at all
Control
operation
abnormal
Stable at below to setpoint
Control result not stable
Overshooting
Measured
value
abnormal
Not stable
Not correct
SV stopped on its way
Incorrect
settings
SV rising or falling
Key not accepted
4.2 Displays and operation for troubles
Display
Explanation
Action
①Is the “Input type” correct?
②Is the input signal (sensor) normal?
①Please check whether the inputted signal
is over allowable input voltage.
②Your controller may be in trouble. Turn off
the power supply and then turn it on
Calibration data
again. If it is still in trouble, contact your

abnormal
agent of CHINO Corporation.
*1: Control continues without reference junction compensation. *2: Control continues on non-calibration condition.
*3: Burnout is included.





Over-range*3
Under-range
Zero data abnormal
RJ data abnormal
A/D conversion error
Operation
Event output
Control output
High limit event → ON
“PV error output”
Low limit event → ON
“PV error output”
“PV error output”
Control continued *1
“PV error output”
Fail → ON
Control continued *2
4.3 Control at power recovery
1) Short power interruption
For the short power interruption within 20msec, the normal operation continues.
2) When recovery
The control operation is determined by the selection in “Control at power recovery” of Mode 8. In case of “”, the control
operation before power interruption or power off is continued. In case of “”, the control output becomes to the value of
“Control output at Ready”.
■ How to check the type
■ Life of components
① Press
key more than 2 seconds. and then press
key
to move to Mode 5.
② Press
key for two times until “Model confirmation 1”
appears. 3-digit figure (“A” mentioned below) is displayed.
③ Press
key again to appear “Model confirmation 2” or
“Model confirmation 3”. 3-digit figure of “B” or “C” is displayed.
MODEL LT83■■■■■■−■■■
A
B
C
④ You can verify Model No. by the above A, B and C.
The followings are the life of components used in.
Component
Expected life
Control relay (On-off pulse)
100,000 times *1
Relay for event (option)
*1: By inserting a contact protection element and low load current,
the life becomes longer.
5. Specifications
5.1 Standard specifications
4) Event specification
1) Input specifications
Input type: T/C …B, R, S, N, K, E, J, T
RTD … Pt100, JPt100
DC voltage … 0 to 5V
Rated measuring accuracy: ±0.3% ± 1 digit (See the right upper table
in Chapter 9 for details.)
RJ compensation accuracy: At ambient 13 to 33ºC … ±1.0ºC
At ambient -10 to 50ºC … ±2.0ºC
Sampling period: Approx. 0.5 second
Burnout: Up scale (T/C, RTD )
Allowable signal source resistance: thermocouple …200Ω or less
DC voltage…1KΩ or less
RTD …10Ω or less (per wire)
Input resistance: DC voltage, thermocouple … 1MΩ or more
Maximum common mode voltage: 30VAC
CMRR (thermocouple): 130dB
SMRR (thermocouple): 50dB
2) Control specifications
Control switching period: About 0.5 second
Control output: Heating output/PID system, To be specified from the
following 2 types, Cooling output (option) is only 1
type of ①.
① On-off pulse type …
Contact ratings: See “Cautions on wirings” in Chapter 2.
Pulse cycle: 1 to 180 seconds (1 second increments)
② SSR drive pulse type …
Output signal: 12VDC ± 20% (Max 20mA) at ON
0.8VDC or less at OFF
Pulse cycle: 1 to 180 seconds (1 second increments)
3) General specifications
Rated supply voltage: 100 to 240VAC 50/60Hz or 24VAC/DC
Allowable power voltage: 90 to 264VAC / 24V AC/DC(± 10%)
Power consumption: Maximum about 6VA(100-240VAC),about
4VA(24VAC), about 3W(24VDC)
Operating condition: As shown in the following table.
Item
Ambient temperature
Ambient humidity
Power voltage
Power frequency
Mounting angle
Installation altitude
Vibration, Impact
Reference operating
condition
23 ± 2ºC
55 ± 5%RH *2
100VAC ± 1%
24V AC/DC
50/60Hz ± 1%
Up/down …±3º
Less than 2000m
2
2
0m/s , 0m/s
Normal operating condition
-10 to 50ºC
*1
20 to 90%RH *2
90 to 264VAC
24V AC/DC± 10%
50/60Hz ± 2%
Up/down …±10º
Less than 2000m
2
2
2.0m/s , 0m/s
Event calculation: 2point
Output point: 0 Relay output, 2 points (option)
Event type: Absolute value , deviation , absolute value deviation ,
output value (High limit/low limit and standby
enable/disable is selectable in these events.), FAIL, heater
disconnection(option)
5) Transportation and storage* condition
Ambient temperature: -20 to 60ºC
Ambient humidity: 5 to 95%RH (no dew condensation)
Vibration: 0 to 4.9m/s2 (10 to 60Hz)
2
Impact: 400m/s or less
*The above is under the condition of shipment from the factory
5.2 Options
1) Communications interface / Remote contacts input
Communications type: RS-485
Protocol: MODBUS (RTU mode/ASCII mode selectable.)
Function: Settings/data transmission, digital transmission or digital
remote, to be specified
Transmission speed: 9600/19200 bps
2) Heater disconnection (CT)
Input signal: 5.0 to 50.0 A AC (50Hz/60Hz)
Measuring accuracy: ±5%FS ± 1 digit
Recommended CT: Model CTL-6-S-H
3) Event output
Output point: Relay output, 2 points
Contact ratings: See “Cautions on wirings” in Chapter 2.
4) Water-proof … Not available in closed installation
Front panel protection: NEMA 250 4X(equivalent to IEC 529 IP66)
Panel installation: See Chapter 1 “Installation to a panel”.
5.3 Parts (Separate purchase is required.)
1) Contact protection element … To be mounted externally
Type
Specification
Open/close current
Application
CX-CR1 0.01µF+120Ω
0.2A or less
For light load
CX-CR2
0.5µF+47Ω
0.2A or more
For heavy load
2) Shunt resistor for current input … To be mounted externally
・Resistance … 250Ω
・Maximum allowable continuous current … 25mA
・Type … EZ-RX250
3) Terminal cover … To be mounted externally/nonflammable
*1: Less than 40ºC for closed installation
*2: No dew condensation is allowed.
Warming up: More than 30 minutes
Power failure: Parameters are maintained by EEPROM.
Insulation resistance: Between primary terminal (*3) - secondary
terminal (*4) 500VDC, 20MΩ or more
Withstand voltage: Between primary terminal (*3) - secondary
terminal (*4) 1500VAC, 1 minute
*3: Terminals for 100-240VAC power supply,
on--off pulse type control output and
event relay output
*4: Terminals for 24V AC/DC power supply,
measurement input, communication interface,
CT input and SSR drive pulse type control
output .
Front and case: Front…Non-flammable ABS
Case…Non-flammable polycarbonate resin
Weight:: The maximum abbreviation 160g
2
6.PARAMETER DIRECTORY

D
↓*1

EV2 mode
↓

P
↓*1

Dead band
↓

Target V.
filter
Pulse cycle
↓

PV error
output
↓

Control outpu
at Ready
EV2. set
↓*3

EV2
dead band
↓*3

EV2 Output
phase
↓*3

Event output
at Ready
↓

Eng. unit
↓*5

Range L
↓

Range H
↓

SV Decimal
point
↓*6

Scale L
↓*6

Scale H
↓*6

Sensor
correction
↓

Digital filter
Lock function
↓

Model
conf.1
↓

Model
conf.2
↓

Model
conf.3

comm.
↓*7

Protocol
↓*7

Com.
function
↓*7


Heat/cool
↓*8

Inst. No.
↓*7

H/C type
↓*8

H/C
dead band
↓*8

cooling
P factor
↓*8

Trans. speed
↓*7

Split direct
↓*8

Character
↓*7

Remote
/Local
↓*7

Digital
transmission
↓*7

Split reverse
↓*8

C. pulse
cycle
*8
Remote shift
*7
Displays without condition
Displays under condition
CT current
*4
『Lock function』
Level 0
Level 1
(Default)
Level 2
Level 3
Operation mode
Display/change
enabled
Display/change
enabled
Display/change
enabled
Display enabled/
change disabled
Setting mode
(except )
Display/change
enabled
Display/change
enabled
display conditions (*1-*8)
Engineering mode
*1:Control type―[PID] selected
*2:EV1 mode is except [non]
Display/change
enabled
Display disabled
*3:EV2 mode is except [non]
*4:With option [CT]
*5:Input type ---T/C or RTD selected
Display disabled
Display disabled
*6:Input type --- [5V(20mA)] selected
Display enabled/
change disabled
Display enabled/
change disabled
*7:With option [Communications IF]
(For the remote setting, SV can not be changed.)
A lock function can be changed by Mod.5“”.

↑↓
I
↓*1

EV1. set
↓*2

EV1
dead band
↓*2

EV1 Output
phase
↓*2

Input type
↓


type
↓


↑↓
Auto-tuning
↓*1

↓

Control
action
↓


input
↓


↑↓
EV1 mode
↓


Control output

↑↓
Control type
↓


↑↓
Run/Ready

Event output
↓


↑↓
↓


Cont. comp
↓


↑↓
↑↓
Operation
MODE
PV/SV

Engineering
↓

ARW-L
↓

ARW-H
↓

SV limiter L
↓

SV limiter H
↓

Output
preset
↓

Output
limiter L
↓

Output
limiter H
↓

Variation
limiter
↓

SV rise ramp
↓

SV fall ramp
↓

PV start
↓

Power
Recovery
action
↓

*8:With [Control output 2]
SV display
↓

ºC decimal
point
Note
Each mode is as follows.

comm.


Heat/cool
↑↓

type

↑↓

input

↑↓

Control output

↑↓

Event output

↑↓

Cont. comp

↑↓

↑↓
↑↓
Operation
MODE
PV/SV
Operation
Setting mode (except mod5)
mode


Engineering
Engineering
mode
By pressing
key for 2 seconds, the operation mode is change to the setting mode. For returning to the operation mode, again,
press
key 2 seconds.
The example of operation
Ope. 1 The setting method of a measuring input.

Press
key for 2 seconds
to move to Mode 1.
↓


Press
key 3 times
to move to Mode 4.
Press
key once.
↓


appears.
Press
key.
Select an input kind.
Press
key.
The blinking of dots
disappears and the setting
contents are stored into the
memory.
Input type
B
R
S
N
T/C
K1
K2
E
J
T
DC
voltage
RTD
Display









5V 
Pt1
Pt2
-
PID constants setting by AT (auto-tuning)
“” in Mod.1 should be “”.
P V
The input setting screen
Ope. 2
↓


↓

    Dots
↓
blink


Input range [℃]
0 ∼1 8 2 0
0 ∼1 7 6 0
0 ∼1 7 6 0
0 ∼1 3 0 0
2 0 0 ∼1 3 7 0
1 9 9. 9 ∼ 5 0 0. 0
1 9 9. 9 ∼ 7 0 0. 0
1 9 9. 9 ∼ 9 0 0. 0
1 9 9. 9 ∼ 4 0 0. 0
0. 0 0 0 ∼ 5. 0 0 0
 - 1 9 9. 9 ∼ 8 5 0. 0
 - 1 9 9. 9 ∼ 2 0 0. 0
1. The start method of AT
P V

Press
key for 2 seconds
↓
to move to Mode 1.


Press
key once
↓
to move to AT start screen.


Press
key once.
↓
“ ” is changed to “”

with dots blinked.
    Dots
Press
key.
↓
blink

The blinking of dots disappears,
the AT starts, and a step number is    
↓
displayed.

↓
The step number is the display for

the progress of the auto-tuning.
After Step 4 is displayed, automatic
↓
PID constants selection is

completed when PV crosses SV
↓


2.Canceling of AT


Press
key once.
↓
The step number display becomes

End and dots blink.
   Dots
↓
blink.


7. List of parameters
Mode
1
Parameter
Control type
Auto-tuning
P
I
D
On/off
dead
band
PID
Target value filter

EV2 output phase
Event output
at Ready
CT current
Control action


CALC/oFF
CALC


0.0∼50.0A
rEV/dir
rEV









EV1 dead band *4

EV1 output phase

EV2 mode

EV2 setting *4

Pid
End
3.0%
120sec
20sec
0.5%
0.1%
oFF
4000
-1999
4000
0.0
2.0
0.20
noML
non
4000
-1999
4000
0.0
2.0
0.20
noML
1∼180sec.
-5.0∼105.0%
10sec
0.0%

-5.0∼105.0%
0.0%
Input type

K1/K2/E/J/t/VoLt/Pt1/Pt2/b/r
/S/n
K1
Engineering unit

℃
℃

4
Range H *3

4
non


K1:-200∼1370
K2:-199.9∼500.0
E:-199.9∼700.0
J:-199.9∼900.0
t:-199.9∼400.0
VoLt:0.000∼5.000
Pt1:-199.9∼850.0
Pt2:-199.9∼200.0
b:0∼1820
r:0∼1760
S:0∼1760
n:0∼1300
however ,L<H
Mode
5
Pulse cycle
PV error output
Control output at
Ready
Range L *3
3
Default
EV1 dead band *4
EV1 setting *4
3
Setting range
Pid/onoF
End/Strt
0.1∼999.9%
0∼9999sec.
0∼9999sec.
0.1∼9.9%
0.0∼9.9%
on/oFF
non/AH/AHW/AL/ALW/dH
/dHW/dL/dLW/dHL/dHLW/
CT
AH/AHW/dH/dH -1999
W
∼
9999
AL/ALW/dL/dLW
*3
dHL/dHLW:0∼9999 *3
Ct:0.0∼50.0
AH/AHW/AL/ALW/dH/dH
W/dL/dLW/dHL/dHLW :0.0
∼999.9 *3
CT:0.00∼99.99
nomL/rEV
non/AH/AHW/AL/ALW/dH
/dHW/dL/dLW/dHL/dHLW/
CT
AH/AHW/dH/dH -1999
W
∼
9999
AL/ALW/dL/dLW
*3
dHL/dHLW:0∼9999 *3
Ct:0.0∼50.0
AH/AHW/AL/ALW/dH/dH
W/dL/dLW/dHL/dHLW:0.0
∼999.9 *3
CT:0.00∼99.99
noML/rEV
EV1 mode
2
Symbol
6
*1
Parameter
Symbol
Setting range
Decimal point*5
Scale L *3
Scale H *3
Sensor
correction*3
Digital filter



Lock function
Model conf. 1
Model conf. 2
Model conf. 3

Lt83□□□□□□-■■■
Protocol
Communications
function
Instrument No.
Transmission
speed

Character

Remote/Local
Digital
transmission
Remote shift *3
Heat/Cool type
H/C dead band
7 Cooling P factor
*2 Split direct
Split reverse
C. pulse cycle
ARW-L
ARW-H
SV limiter L *3
SV limiter H *3
Output preset
Output limiter L
Output limiter H
8 Variation limiter
SV rise ramp *3
SV fall ramp *3
PV start
Power recovery
action
SV display
℃ decimal point
Default
0∼3
1
0.0
100.0
-199.9∼999.9
-199.9∼999.9
0.0

0.0∼99.9sec.
0.1sec



0∼3
Lt83■■■□□□-□□□
Lt83□□□■■■-□□□
rtU/ASCi
1
Model
No. at
shipme
nt
rtU

CoM/trS.2
CoM

1∼99

9600/19.2K

1
9600

8n1/8n2/8E1/8E2/8o1/
8o2/7E1/7E2/7o1/7o2
LoCL/rEMt

PV/SV


















-199.9∼999.9
CoL.P/SPLt
-50.0∼50.0
0.00∼10.00
0.0∼60.0%
40.0∼100.0%
1∼180sec.
-100.0∼0.0%
0.0∼100.0%
L<H
(within scale L, H)
-100.0∼100.0%
-5.0∼100.0%
H>L
0.0∼105.0%
0.1∼100.0%
0∼9999/min
0 = No ramp
oFF/on

Cont/rEdy
Cont


SV/bLnK
on/oFF
SV
on
8n1
LoCL
PV
0.0
CoL.P
0.0
1.00
50.0%
50.0%
10sec.
-50.0%
50.0%
Scale L
Scale H
50.0%
0.0%
100.0%
100.0%
0℃/min
0℃/min
oFF
■The display mode is changed depending on the lock setting. Refer to
[6. parameter directory].
*1: Refer to the separate instruction manual for communications
-200 *6
interface.
*2: For the details, read [ Heating/cooling control in “9. Setting of
parameters”].
*3: The decimal point position changes by the setting of input type and
linear decimal point.
*4: The dead band is initialized by resetting of EV mode.
1370
*6
*5: For thermocouple or resistance input, the linear decimal point can not
be changed. (display only)
*6: The range changes by the setting of input type.
8. Description of parameters
This chapter describes parameters requiring explanation.
Parameter
Function
For selection of control output.
 ・・・Normal control output(Default)
Run/ready
control
system
dead band
EV
dead band
・・・Control output value is control output at
Ready (Fixed value,Default:0.0%).
“AT” cannot be executed.  is
displayed instead of “SV”.
For selection of control system.
・・・PID control
・・・ON/OFF control(2-position control)
: In this dead band, the response of the
control output becomes dull due to
non-linearized deviation.
: Dead band of 2-position control
The gap from the event activation to reset.
Parameter
Scale
Sensor
correction
Variation of measured value
Digital filter
…Event activation: Relay on,
EV output
phase
Event reset: Relay off
… Event activation: Relay off,
Event reset: Relay on
Event output
at Ready
..The event judgment continues even at Ready.
… The event judgment becomes off at Ready
CT current value is displayed.
100%
0%
Direct action
SV
100%
Out-put
Control
action
Reverse action
SV
Out-put
CT current
Low← PV→ High
0%
Low← PV→ High
When a control system is PID, the control output
is based on the time ratio of on to off. This
parameter is for the setting of this 1 cycle. The
new parameter effects from the next cycle.
For example, in the case of 50% of outputs.
15 sec
Pulse cycle
15 sec
Control output
at Ready
Engineering
unit
Range
decimal
point
It is a control output (MV) at Ready.
For selection of engineering unit for converting
into temperature when thermocouple or
resistance thermometer is selected as the input
type.
Minimum value L and maximum value H of the
measuring range can be set within the input
range selected in the input type. This width
(between H and L) becomes 100% of the
proportion band P.
The setting value (SV) is a figure up to 4 digits
and cannot be added with decimal point. For the
input types of DC voltage and DC current, the
decimal point can be set by this parameter.
Delay of PV by filter
T
Cooling
pulse cycle
ARW
(Anti-reset
windup)
SV limiter
Output
preset
Output
limiter
Variation
limiter
SV rise ramp
SV fall ramp
Pulse cycle 30 sec.
(1 cycle)
This control output is for abnormal measured
PV error output value(PV)*.
*Over-range ,under-range and Er01,Er03.
A
0.63A
ON
OFF
Function
The parameter is for the input types of DC
voltage. The scale with an actual industrial
quantity can be set corresponding to Range L
and H.
This function is to correct the measured value
(PV) by adding a correction value to the
measured value.
It can be also used to adjust the measured value
to have same display as other equipment.
This function is, by applying the first-order lag
computation to the measured value, to reduce
the variation of the measured value (PV) due to
noise interference.
PV start
Power
recovery
action
SV display
℃ decimal
point
Setting range of T(0.0 to 99.9 sec.)
Applicable to control output 2 (cooling)
This parameter is for the setting of 1-cycle time of
on and off of the output.
For PID control range. This parameter is set to
SV by % of SV range. The control out of the
ARW range becomes PD control. (The ARW
effects to reduce overshoot.)
For limiting the setting range of SV
Normally P action controls the calculated output
to 50% when the deviation is 0. The calculated
output can be set optionally by this parameter.
The control output is limited within the set value of
L and H.
The control output is updated per control
changing period (about 0.5 sec.). Its variation is
limited within the setting value.
A SV value and  () are
displayed at the interval of 1 second in the
lower LED
It effects when SV rising/SV falling ramp is set.
When a trigger signal* applies to SV, SV starts
from the point of PV.
* At turning on the power, changing SV No.,
changing SV, or switching“” to“”
For control action when the power is turned on
from off (or from power failure to recovery).
… Continues previous control conditions.
… Becomes the “Control output at Ready”.
This selective screen appears when the power is
turned on or the screen returns to the operation
screen from the setting screen. The lower LED
displays either SV or with blank.
No decimal place indication is available for the
input ranges which have temperature
reading after decimal point in celsius scale.
(Caution) Require reprogamming of each
parameters after changing.
9. Setting of parameters
9.1 LED display of alphabetical characters
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
                         
1 Selection of parameter items
Parameter items … Press
repeatedly to display the
in operation mode
parameter item you want to set.
Parameter items
in setting mode
[Operation mode]
example:「r-rd」 → Ready
[Setting mode]
example:「Control action」 → Dir
Ope. screen
Ope. screen
more than 2 sec. to shift to
… 1)Press
the setting mode. Press
or
to select Mode number.
2)Press
repeatedly to display the
parameter item you want to set.
2sec
2sec
2sec
2 Settings (selection)
By pressing
or
, a numerical figure or a sub-parameter
item is changed, and a dot blinks.
Numerical figure … Press
or
to change. For forwarding
setting figures, press either key continuously.
Sub-item selection … Press
or
to select.
3 Storage
By pressing
, the dot blink disappears and the parameter set


↓
2sec

↓

↓

↓
Control action
↓


↓
Stored
is stored into memory.
2sec
Run/Ready
↓
↓


↓
    Dots
   blink
↓
Dots
blink
2sec
Stored
(Caution) An automatic return to the operation mode is executed if
there is no key activity for more than 3 minutes.
Ref.1 Change of executed SV
It is an operation procedure from a screen at the time of
a power supply injection.
It is made the operation screen of PV/SV.
P V

Press
key.
Select a value kind.
↓
P V

↓
P V

Press
key.
The blinking of dots
disappears and the setting
contents are stored into the
memory.
*When the control operation is Ready,
“” is displayed in the SV display, but, by
pressing
,
keys, the display is
changed to the SV display and the setting of the
SV value is enabled.
Dots
blink
Ref.2 Lock function
In the operation mode, you can select screens, in which the
settings are disabled to change.
See the 6 PARAMETER DIRECTORY
A setting change is made in Mod.5“”.
Ref.3 Initialization
All parameters are initialized by the following procedure.
While pressing
and
simultaneously, turn on the
power.
*Don’t turn off the power during initialization.
■ List of input types

0 to1820
R
S
N
K1
K2
E
J
T
Pt1
Pt2










0 to 1760
0 to 1760
0 to 1300
-200 to 1370
-199.9 to 500.0
-199.9 to 700.0
-199.9 to 900.0
-199.9 to 400.0
-199.9 to 850.0
-199.9 to 200.0
5V

0.000 to 5.000
Parameter
Heating/
cooling
type
()
SV
H
SV1
SV2
PV
SV2
PV
H
Time
Time
3) When changing SV, ▲
① PV start: OFF
Before
change
PV
L
② PV start: ON
Before
change
H・C
dead band
()
L
PV
After
change
After
change
Split Rev.
()
Time
PV
Time
Solid line: Split Dir.
(Heating side output)
50
0
Dotted line: Split Rev.
(Cooling side output)
40 60 100(%)
PID computation
Effective for cooling proportional computation () type
selected
[HC db > 0]
[HC db < 0]
HC db
HC db
100
50
Cool
Heat
0
Time
4) When switching Ready to Run , ▲
① PV start: OFF
② PV start: ON
SV
SV
PV
100
100
50
Heat
Cool
0
PV
PV
△: Heating side SV
▲: Cooling side SV
Cooling side proportional band =
Proportional band (P) x Cooling P factor ()
[When a control system is [When a control system is Pid
and Cool = 0]
onoF]
db
db
db
H
Time
H: Rising ramp set value
L: Falling ramp set value
* The SV ramp operation is not backed up for power
interruption.
Cooling
P factor
()
HC db
Output
L
Split Dir.
()
Function
For selecting of computation types of heating/cooling
(Split computation) … Outputs at heating side and
cooling side are the outputs after split computation of PID
computed output.
(Cooling proportion computation) … It is applicable to
proportional control type only (2-position type for CooL = 0).
Proportional computed output at cooling side is executed.
Effective for split computation () selected
Cool
PV
Time
Time
2) When switching SV No., ▲ … Example: SV1 to SV2
① PV start: OFF
② PV start: ON
SV1
±0.3%
±1 digit
■ Heating/Cooling control (Option)
1) When turning on the power, ▲
① PV start: OFF
② PV start: ON
SV
PV
Less than 400ºC: not specified
±0.3%
Less than 800ºC: ±1.0%±1digit
±1 digit
For more
than
-200℃,
less than
0ºC,
± 0.5% ±
1 digit
Output
■ SV ramp and PV start
Detailed specification
Heat
DC
voltage
B
Accuracy
ratings
Output
RTD
Input type
ºC
Output
T/C
Display
Output
Input type
HC db
Heat
Cool
PV
△: Heating side SV
▲: Cooling side SV
db: dead band (common for heating and cooling sides)
PV
10. Operation
1 Control output
4 PID control
“Run” or “Ready” * is selectable in control output.
① ”Run/Ready” is in Operation mode .
② Press
or
to select “” or “”, and
then press
.
*The output at “Ready” is the value set by “control output at
Ready” in Mod.3 . (Default value is 0.0%.)
2 Operation mode
The displays of the following operation modes can be
selected in the [SV display] setting in Mod 8 .
Choice
Ope.
mode
screen
PV/blank
PV/SV
Run/Ready
SV display
SV
bLnK
(Initial value)
×
〇
〇
〇
〇
〇
Operation screen
PV/Blank … Measured value (PV) only is displayed.
PV/ SV …Setting value (SV) being used is displayed in the
lower display. “” is displayed in “Ready”.
At SV value increased ramp…
A SV value and  are displayed at the interval of
1 second in the lower LED.
At SV value decreased ramp…
A SV value and  are displayed at the interval of
1 second in the lower LED.
3 Targeted value filter
1) Targeted value filter
This is a function suppressing overshoot. Control is
executed by computing an optimum SV.
2) ON/OFF of “Targeted value filter”
“Targeted value filter” is in Mod.1, and ON (enable) or OFF
(disable) is selectable . Press
by selecting “” to
enable this function.
1) P (Proportional) action
① This is a basic action of PID control. It affects
responsiveness and stability. The proportional action only
results in offset.
② By setting the proportion band wider, the control stability
becomes better due to smaller amplitude of cycling and
longer cycle time, but the responsiveness becomes
worse.
2) I (Integral) action
① This action can eliminate offset resulted from the
proportional action, but the stability becomes worse
because phase delays.
② By setting the integral time shorter (stronger integral
action), the responsiveness becomes better but
overshoot becomes larger.
3) D (Derivative) action
① This action compensates the delay of phase due to dead
time or delay factor. However, because the gain
increases in high frequency area, its strength has a limit.
② By setting the derivative time longer, the response to
large deviation becomes faster and the cycle is
shortened. However, for deviation with high frequency,
the stability becomes worse.
4) Relation of input and output of PID action
Input
Output
Proportional
action
Integral
action
Derivative
action
11.Event mode and output
Viewpoint
Event mode
[Display]
Event mode
[Display]
Set value and output
PV
Absolute value
high limit
No standby
[
]
db
PV
Absolute value low
limit
No standby
[  ]
db
Deviation high limit
No standby
[
]
SV
Deviation low limit
No standby
[  ]
Symbol
Judgment output
PV
SV
db
db
PV
Absolute value low
limit
with standby
[ ]
Deviation low limit
with standby
[ ]
Heater
disconnection
[
]
db
PV
db
SV
PV
db
PV
db
db
CT
Event deadband
PV
Absolute value
high limit
with standby
[ ]
PV
Deviation high/low
limits
SV
No standby
[ ]
db
Set value and output
Deviation high limit
db
with standby
SV
[ ]
PV
Event set value
Deviation high/low
limits
SV
with standby
[]
db
No event
[ ]
db
db
An output occurs only at the time of
FAIL (when the LED display of the
upper row is the following).
  □ (□:2∼4)
* 1 The judgment is not executed when relay ON time shorter
than 300msec.
*2 “0” is set, no judgment is executed.
* The relation of the event judgment output and the relay output at terminals is determined by the setting of the EV output phase.
4
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