LT450, 470 Series Digital Indicating Controllers - Discontinued
High function type with 5-digit display of measured value
New overshoot suppression function "JyroNavi"
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".
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 (ul, CSA: approval pending).<
Front panel conforming to NEMA4X(IP66) water and dust protection (option)
LT450
Model
Output signals
LT45010110-00A
On-off pulse type, with remote input and transmission signal
LT45020110-00A
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
LT470
Model
Output signals
LT47010110-00A
On-off pulse type, with remote input and transmission signal
LT47020110-00A
On-off servo type, with remote input
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
Inputs
Input ranges
Thermocouple
B
0 to 1820°C
32 to 3300°F
R
0 to 1760°C
32 to 3200°F
S
0 to 1760°C
32 to 3200°F
N
0 to 1300°C
32 to 3250°F
K
-200 to 1370°C
-300 to 2450°F
E
-199.9 to 700.0°C
-300 to 1250°F
J
-199.9 to 900.0°C
-300 to 1650°F
T
-199.9 to 400.0°C
-300 to 700°F
U
-199.9 to 400.0°C
-300 to 700°F
L
-199.9 to 900.0°C
-300 to 1650°F
WRe5-WRe26
0 to 2310°C
32 to 4190°F
W-WRe26
0 to 2310°C
32 to 4190°F
PtRh40-PtRh20
0 to 1880°C
32 to 3400°F
Platinel II
0 to 1390°C
32 to 2500°F
Resistance thermometers
Pt100
-199.9 to 850.0°C
-300 to 1500°F
JPt100
-199.9 to 649.0°C
-300 to 1200°F
DC voltage
20mV
0 to 20mV (0.00 to 20.0)
Scale setting range -1999 to 9999
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)
Input Specifications
Thermocouple
Standard universal: B, R, S, N, K, E, J, T, U, L
High temperature universal: B, R, S, N, K, WRe5-WRe26, W-WRe26, PtRh40-PtRh20, Platinel II
Resistance thermometer: Pt100, JPt100
DC voltage: 0 to 5V
DC Current: 4 to 20mADC
A 250Ω shunt resistor (sold separately) and the 5V (1 to 5V) are used.
Up scale (thermocouple input, resistance thermometer input)
Measuring current
Resistance thermometer : 110µA
Scaling
Ranges/scales of DC voltage/current input are optional settings.
(-1999 to 9999)
Scale decimal point
0 to 3
Control Specifications
Control cycle time
Approx. 0.5 second
Control system
On-off pulse type PID system
Current output type PID system
SSR drive pulse type PID system
Voltage output type PID system
* 2-position control is selectable.
Control setpoint
2 sets switching, 4-digit setting
Setpoint ramp function:
Setpoint ramp unit : °C/minute (common to rising/falling)
Setpoint rising ramp: 0 to 9999 (0 = no operation)
Setpoint falling ramp: 0 to 9999 (0 = no operation)
PV start function : At SV change, power-on, Run/Ready
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%
Anti-reset windup
High limit : 0.0 to 100.0%, Low limit : -100.0 to 0.0%
Overshoot suppression function
On/off selectable
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 3A, 240VAC 3A, 30VDC 3A, Inductive load-100VAC 1.5A, 240VAC 1.5A, 30VDC 1.5A
Pulse cycle: Approx. 1 second to 180 seconds adjustable
Current output type
Output signal: 4 to 20mADC
Load resistance: 600Ω 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
Voltage output type
Output signal: 0 to 10VDC
Output resistance: Approx. 10Ω
Load resistance: 50kΩ 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 10VA
Installation
Panel installation
Weight
About 350g (LT450)
About 450g (LT470)
International Standards
CE
EN61326 + A1 Class A, EN61000-3-2 + A14
EN61000-3-3,EN61010-1 + A2
