LU-928M memory type manual-operation controller is mainly used for kiln stove temperature control and widely used in chemical industry,ceramics and glass industry.

It can drive the actuator directly without using the servo amplifier.

 

Its control input signal can be freely set to be standard current 0~10mA/4~20mA,or standard voltage 0~5V/1~5V.

 

It is compatible with a variety of valve feedback signals,including standard voltage,standard current,3-wire potentiometer,etc..

 

The virtual valve feedback function can automatically track the valve status just by setting the relevant parameters and eliminate the inconvenient connection of feedback signal.

 

It has manual/auto signal output,also can receive the regulator’s event signal (dry point).

 

It has valve position dead zone function and the dead zone range can be set by register.Users can set the upper/lower limit of valve position and calibrate the valve position by register.

 

It can achieve the input signal or valve feedback signal transform function by setting the parameters of transform source.

 

2. Main Technical Parameters

 

●Accuracy: ±(0.2%F.S.+1)digit

●Resolution: 1℃ , 0.1℃

●Control method:ON/OFF,manual control,PID with auto-tuning

●Display: double 4-bit LED +light pillar

●Input type: 

T.C: S(-50~1768℃),R(-50~1768℃),B(250~1820℃), 

K(-200~1372℃),N(-200~1300℃),E(-200~1000℃),

J(-200~1200℃), T(-200~400℃).

RTD:Pt100(-200~800℃),Cu50(-50~150℃),Cu100(-50~150℃)

standard mV signal: 0-100mV

standard resister signal: 0-500 ohm

standard voltage signal: 0-10V,0-5V,1-5V,self-defined 0-10V

standard current signal: 4-20mA,0-10mA,self-defined 0-20mA

●Output modules:

J7:double relay output (250VAC/0.8A,normally open)

J8:relay output (250VAC/3A,normally open+normally close)

J9:relay output (250VAC/0.8A,normally open+normally close)

T7: clockwise/anticlockwise rotating silicon-controlled contactless output

I5: control/ transform current output 

U5: control/ transform voltage output

V6/V7: 12V/24V 50mA sensor power supply

S2: RS232 communication

S4: RS485 communication

D1: switch signal input 

M1: self-defined setting

M2: potentiometer+virtual valve

M3: 4~20mA+virtual valve

M4: 0~10mA+virtual valve

M5: 1~5V+virtual valve

M6: 0~10V+virtual valve

●T.C cold Junction compensation error: ±1℃

●T.C.break or over range: display Sb

●Sampling period: 0.5 second

●Power voltage: 85~265VAC

●Power consumption: <4W