Temperature Control Modules
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LU-927MY Memory-Type Position Proportional Controller Module (Valve Position Control)
The LU-927MY is an intelligent industrial controller focused on valve position control, designed for kiln temperature control. It can drive actuators directly without a servo amplifier and is widely used in the semiconductor, photovoltaic, chemical, ceramics and glass industries. Centered on valve position feedback and position proportional control, it combines high precision, high reliability and rich control functions.
Selection customization and technical solution support available. After-sales Service 0086-400-8875-999, Pre-sales Hotline 0086-0592-5711111
LU-927MY memory-type position proportioning control module (valve position control)
The LU-927MY is an intelligent industrial controller specializing in valve position control. Designed specifically for kiln temperature control, it can drive the actuator directly without a servo amplifier. It is widely used in the semiconductor, photovoltaic, chemical, ceramics and glass industries. Focusing on valve position feedback and position proportioning control, it combines high accuracy, high reliability and comprehensive control functions.
I. Core Product Features
Equipped with an ARM processor for fast processing and simple interfaces; interference immunity complies with the industrial level-3 EMC test; overall power consumption <4W;
Supports all types of input signals including thermocouple, RTD, standard voltage/current; the nonlinear correction algorithm ensures digital sampling accuracy, with measurement accuracy of class 0.2;
Compatible with multiple valve position feedback methods: actual feedback from standard voltage/current and three-wire potentiometers is supported, and virtual valve position feedback can also be configured, eliminating hardware wiring and automatically tracking valve position status through parameters;
Rich control modes: on/off, manual and PID intelligent control with auto-tuning (fuzzy plus conventional PID), with remarkable control performance for objects with large pure lag; the auto-tuning function simplifies commissioning;
Unique valve position deadband and control deadband functions; the deadband range can be set precisely through registers to prevent valve position oscillation and frequent control actions;
1024-point control process memory, supporting both PV and PV+MV modes, with the memory interval adjustable from 1 to 60 seconds; historical data can be browsed with one key for easy analysis of control performance;
Dual-row 4-digit LED display plus a 20-segment light bar for intuitive human-machine interaction; plug-and-play modular structure with a wide range of output specifications;
Standard MODBUS-RTU communication protocol, supporting RS232/RS485, with high versatility and remote parameter reading and writing.
II. Main Technical Specifications
1. Input specifications and range
Thermocouple: S/R (-50~1768°C), B (250~1820°C), K (-200~1372°C), N (-200~1300°C), E (-200~1000°C), J (-200~1200°C), T (-200~400°C);
RTD: PT100 (-200~800°C), Cu50/Cu100 (-50~150°C);
Standard signals: custom 0~100mV millivolt, 0~500Ω resistance; 0~10V/0~5V/1~5V voltage; 4~20mA/0~10mA/custom 0~20mA current;
Valve position feedback signals: standard voltage, current, three-wire potentiometer (resistance <10KΩ); virtual feedback supported.
2. Measurement and sampling
Measurement accuracy: class 0.2 (±0.2% FS ±1 digit), cold junction compensation ±1°C;
Sampling resolution: 1°C/0.1°C selectable, sampling period 0.5 s;
Fault detection: open thermocouple/open RTD/over-range detection, Sb shown on the screen.
3. Control and output
Control modes: on/off control, manual control, PID auto-tuning, PID intelligent control, Pad control, OPi control, hard manual control (HMAn);
Output mode: forward/reverse relay output (250VAC/0.8A, normally open); OUT is forward, AUX1 is reverse;
Valve position adjustment: the upper and lower limits of the actuator valve position are configurable (0~2000 corresponds to 0~100%), suitable for valves that cannot fully open/close.
4. Power supply and operating environment
Power supply: 18~52VDC, overall power consumption <4W;
Operating environment: temperature -10~+60°C, humidity 0~80%RH.
LU-927MY Memory-Type Position Proportional Controller Module (Valve Position Control) User Manual
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