Memory Digital Indicating Controller - JW-920M Series
Adopts advanced ARM processor, fast processing speed, simple interface components, high reliability and stability.
Includes various common thermocouple, RTD, standard voltage, standard current signals, fast and accurate nonlinear correction algorithm ensures digital sampling accuracy.
Multiple control modes freely selectable, among which intelligent regulation control combines fuzzy theory and traditional PID control, making the control process have advantages of fast response, small overshoot, high steady-state accuracy, especially effective for large pure lag objects that are difficult for conventional PID to control. The control algorithm has self-tuning function.
Product Introduction
Product Description:
Adopts advanced ARM processor, fast processing speed, simple interface components, high reliability and stability.
Includes various common thermocouple, RTD, standard voltage, standard current signals, fast and accurate nonlinear correction algorithm ensures digital sampling accuracy.
Multiple control modes freely selectable, among which intelligent regulation control combines fuzzy theory and traditional PID control, making the control process have advantages of fast response, small overshoot, high steady-state accuracy, especially effective for large pure lag objects that are difficult for conventional PID to control. The control algorithm has self-tuning function.
Compatible with multiple valve position feedback signals, standard voltage, standard current, three-wire potentiometer, etc. Also has virtual valve position feedback function, eliminating the need to connect valve position feedback signal, automatically tracks valve position status through related valve parameter settings. Has valve dead zone and control dead zone functions, dead zone range can be set by register.
Has standard analog transmitter output function, transmitter data source, transmitter type, transmitter range freely configurable.
Can set 120-segment program control curve, each segment can be independently output limited, has jump function, through which multiple program heating curves can be connected into one, or periodic cyclic program heating curve control can be executed. Has pause (Hold) and stop (Stop) functions. Two programmable switch outputs can be set as event outputs, alarm outputs on the same physical output interface operate in OR logic.
Has difference calculation, average calculation, temperature difference control functions.
Unique control process memory function, can set 1024 points of control process memory data, memory modes include PV and PV+MV. Memory interval adjustable from 1 to 60 seconds. Users can quickly browse with one-key operation, memory data automatically refreshes according to browsing time requirements. This function can quickly analyze control effects, facilitating control maintenance.
Rich alarm outputs, 4 groups of alarm registers freely combined, freely defined to any physical output interface.
Dual-row 4-digit LED display plus 20-segment bar graph display, human-machine interface operation, simple and easy to use.
Plug-and-play modular structure, rich output specifications, suitable for various application needs.
Adopts standard MODBUS communication protocol, strong universality, high reliability.
Strong anti-interference performance, passes industrial level 3 electromagnetic compatibility test requirements.
Historical Data Browsing
Unique control process memory function, can set 1024 points of control process memory data, memory modes include PV and PV+MV. Memory interval adjustable from 1 to 60 seconds.
Rich Control Setpoint Methods
Has two setpoint registers, with external setpoint, event-triggered setpoint switching functions.
Main Technical Specifications
Input Specifications and Range
RS485 Communication Input
Thermocouple: 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 millivolt signal: custom 0~100mV
Standard resistance signal: custom 0~500 ohms
Standard voltage signal: 0~10V, 0~5V, 1~5V, custom 0~10V
Standard current signal: 4-20mA, 0-10mA, custom 0-20mA
Measurement accuracy: 0.2 class (±0.2%FS±1 digit)
Cold junction compensation: ±1℃
Sampling resolution: 1℃ or 0.1℃
Sampling period: 0.5 seconds
Broken thermocouple/RTD and over-range detection, displays 5b
Control modes: on-off control, manual control, fuzzy PID control with self-tuning
Output modes: SCR - SCR phase-shift trigger output
SSR - solid state relay trigger output (12VDC/30mA), SCR zero-cross trigger output
RELAY - relay contact normally open output (250VAC/3A)
IO10 - 0~10mA current output (load capacity <1000 ohms)
I420 - 4~20mA current output (load capacity <500 ohms)
FREE - 0~20mA custom current, range set by software register
FRSS - limited solid state relay, SCR zero-cross trigger, limit threshold set by software register
FRRL - limited relay, limit threshold set by software register
Alarm function: 4 groups of alarm registers, freely assigned to each output position, 9 alarm modes selectable (single-side hysteresis high alarm, single-side hysteresis low alarm, double-side hysteresis high alarm, double-side hysteresis low alarm, positive deviation alarm, negative deviation alarm, positive/negative deviation external alarm, positive/negative deviation internal alarm, fault alarm)
Power supply voltage: 85~265VAC
Power consumption: less than 4W
Operating environment: temperature -10~+60℃, humidity 0~80RH%
Main Application Industries:
Specially designed for temperature, flow, pressure, level and other regulation control in light industrial machinery, ovens, test equipment, refrigeration/heating equipment, etc. Widely used in chemical, ceramic, glass, metallurgy, petrochemical, heat treatment and other industries.
