LT450/470 Series Digital Indicating Controllers
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Digital Indicating Controllers

LT450 Series (48mm X 96mm) Digital Indicating Controllers
LT470 Series (96mm X 96mm) Digital Indicating Controllers

 

 

Models LT450 and LT470 digital indicating controllers feature all functions, which are necessary for various control applications, including newly developed PID algorithms and a learning type overshoot suppression function "JyroNavi".

 

Features

  • Easy view and simple operation by large LED displays and large switches
  • Universal input of thermocouples, resistance thermometers and DC voltage/current
  • MODBUS communications protocol
  • Front panel with 7mm thickness
  • Conformance to CE, UL and CSA
  • Front panel conforming to NEMA4X (IP66) water and dust protection (option)

Models

Models

Specifications

LT45010110-00A On-off pulse type, with remote input and transmission signal
LT45020100-00A On-off servo type, with remote input
LT45030110-00A Current output type, with remote input and transmission signal
LT45050110-00A SSR drive pulse type, with remote input and transmission signal
LT45060110-00A Voltage output type, with remote input and transmission signal
LT450U0110-00A Control output multi type, with remote input and transmission signal
LT47010110-00A On-off pulse type, with remote input and transmission signal
LT47020110-00A On-off servo type, with remote input and transmission signal
LT47030110-00A Current output type, with remote input and transmission signal
LT47050110-00A SSR drive pulse type, with remote input and transmission signal
LT47060110-00A Voltage output type, with remote input and transmission signal
LT470U0110-00A Control output multi type, with remote input and transmission signal

Measuring Ranges
Inputs Input ranges
Thermocouple B 0.0 to 1820.0°C 32 to 3300°F
R 0.0 to 1760.0°C 32 to 3200°F
S 0.0 to 1760.0°C 32 to 3200°F
N 0.0 to 1300.0°C 32 to 2350°F
K -200.0 to 1370.0°C -300 to 2450°F
E -200.0 to 700.0°C -300.0 to 1250.0°F
J -200.0 to 900.0°C -300.0 to 1650.0°F
T -200.0 to 400.0°C -300.0 to 700.0°F
U -200.0 to 400.0°C -300.0 to 700.0°F
L -200.0 to 900.0°C -300.0 to 1650.0°F
WRe5-WRe26 0 to 2310°C 32 to 4190°F
W-WRe26 0 to 2310°C 32 to 4190°F
PtRh40-PtRh20 0.0 to 1880.0°C 32 to 3400°F
Platinel II 0.0 to 1390.0°C 32 to 2500°F
Resistance thermometers Pt100 -200.0 to 850.0°C -300.0 to 1500.0°F
JPt100 -200.0 to 649.0°C -300.0 to 1200.0°F
DC voltage 20mV 0 to 20mV (0.00 to 20.00) Scale setting range
-19999 to 20000
Decimal point position adjustable
5V 0 to 5V (0.000 to 5.000)
10V 0 to 10V
DC current 20mA* 4 to 20mADC (Converted into 1 to 5V)
Note) For DC current input, a shunt resistor (250ohm) is necessary.

Specifications
Input Specifications
Input signal
Thermocouple… B, R, S, N, K, E, J, T, U, L, WRe5-WRe26, W-WRe26, PtRh40-PtRh20, Platinel II
Resistance thermometer…Pt100, JPt100
DC voltage…0 to 20mV, 0 to 5V, 0 to 10V
DC current…4 to 20mADC
A 250ohm shunt resistor (sold separately) and the 5V (1 to 5V) are used.
Accuracy rating ±0.1% ± 1 digit (at reference operation conditions)
Exception: ±0.3% ± 1 digit for PtRh40-PtRh20
Reference junction compensation accuracy ±1.0°C (23°C±10°C), ±2.0°C (-10°C to 50°C)
Measuring unit °C or °F
Sampling cycle About 0.2 second
Burnout Up scale/down scale (selectable)
Scaling Ranges/scales of DC voltage/current input are optional settings.
(-19999 to 20000)
Scale decimal point 0 to 4

Control Specifications
Control cycle time Approx. 0.2 second
Control system On-off pulse type PID system
Current output type PID system
SSR drive pulse type PID system
On-off servo type PID system
Voltage output type PID system
Multiple control type (on-off pulse type/current output type/SSR drive pulse type) PID system
* 2-position control is selectable.
Auto-tuning Standard (Manual setting of PID constants enabled)
PID constants 4 sets switching (interlocking to SV)
P…  0.1 (0.0) to 999.9% (0 = 2-position)
I…  0 to 9999 seconds
D…  0 to 9999 seconds
PID deadband (gap) 0.0 to 9.9% (4 sets switching, interlocking to SV)
Anti-reset windup High limit … 0.0 to 100.0%, Low limit … -100.0 to 0.0%
Overshoot suppression function On/off selectable (4 sets independent switching, interlocking to SV, independent keeping of learned results)
Control operation With direct/reverse action switching
Output specifications
  • On-off pulse type
  •    Output signal …  On-off pulse conductive signal
       Contact ratings …  Resistive load: 100VAC 5A, 240VAC 5A, 30VDC 5A
          Inductive load: 100VAC 2.5A, 240VAC 2.5A, 30VDC 2.5A
      Pulse cycle …  Approx. 1 second to 180 seconds adjustable

  • Current output type
  •    Output signal …  4 to 20mADC
       Load resistance …  600ohm or less

  • SSR drive pulse type
  •    Output signal …  On-off pulse voltage signal
    At ON 12VDC ± 20% (load current … 20mA or less)
    At OFF 0.8VDC or less
       Pulse cycle …  Approx. 1 second to 180 seconds adjustable

  • On-off servo type
  •    Output signal …  On-off conductive signal
       Feedback resistance …  100ohm to 2.5kohm
      Contact ratings …  Resistive load: 100VAC 5A, 240VAC 5A, 30VDC 5A
        …  Inductive load: 100VAC 2.5A, 240VAC 2.5A, 30VDC 2.5A
          Minimum load 5VDC or more, 10mADC or more

  • Voltage output type
  •    Output signal …  0 to 10VDC
       Output resistance …  Approx. 10ohm
       Load resistance …  50kohm or more

    General Specifications
    Rated power voltage 100V to 240VAC 50/60Hz universal power supply
    Allowable power voltage 90 to 264VAC
    Working temperature range -10 to 50°C (maximum 40°C at closed installation)
    Working humidity range 20 to 90%RH (no dew condensation)
    Power consumption Maximum about 16VA
    Installation Panel installation
    Weight About 250 to 350g (LT450)
    About 350 to 500g (LT470)

    International Standards
    CE EN61326 + A1 Class A, EN61000-3-2 + A14
    EN61000-3-3, EN61010-1 + A2
    UL UL3111-1
    CSA (C-UL) C22.2 No. 1010
    IP NEMA4X (IP66) (front protection)

    *PDF data sheet is available at "Download Center".

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