| | Meaning | Likely Cause | Solution | |-----------|----------------------------------|--------------------------------------------------------------|--------------------------------------------------------------| | HHH | Input open / over-range | Thermocouple broken, RTD disconnected, or signal too high | Check sensor continuity; replace thermocouple. | | LLL | Input short / under-range | Thermocouple shorted, polarity reversed, or sensor type mismatch | Verify wiring against manual; select correct InP setting. | | Er1 | EEPROM parameter error | Corrupt memory (rare) | Power cycle. If persists, press ◄+▲ for 10s to factory reset. | | Er2 | Auto-tuning timeout | System cannot reach oscillation (e.g., heating too slow) | Increase P band manually; check heater power. | | Out1 LED on but no heat | Output failure | Relay welded or SSR shorted | Measure voltage at output terminals; replace relay/SSR. |
Terminals 5, 6, and 7 (depending on model configuration). 3. Front Panel Interface
The XTA-7000 is a microprocessor-based intelligent temperature controller designed for versatile temperature measurement and control applications. It features a dual-display screen that simultaneously shows the measured temperature (Process Value) and the desired setpoint (Set Value). The controller is designed with a compact, modular form factor, typically with dimensions of 96×96×90mm, which fits into a standard panel cutout. This size makes it a popular choice for industrial control panels, as it offers a large, easy-to-read display in a relatively compact package. The XTA-7000 is manufactured by several companies, including Weijie Computer Technology Co., Ltd. and Yuyao Yitai Instrument Factory, with slight variations in features and specifications. It is worth noting that the XTA-7000 is not the only model in this series; related models include XTA-700W, XTD-7000, and others, which may have varying specifications, such as different temperature ranges or input types.
The (and its relative, the XMT -7000 *) is an intelligent digital temperature controller manufactured by companies like Weijie (Computer Technology) . It features a dual-row LED display (typically red and green) and uses Fuzzy PID control for precision. 1. Key Specifications Accuracy: digit.
The front panel layout allows for real-time monitoring and easy parameter adjustment. xta-7000 temperature controller manual
key for 3 seconds to enter the parameter menu (e.g., for Alarm 1/2 or PID constants). Auto-Tuning (AT): To automatically calculate the best PID values, locate the parameter in the menu and set it to (Open). The
is a precise, versatile temperature controller designed for demanding industrial and laboratory applications. Its advanced PID algorithms, robust construction, and user-friendly interface make it a critical component for maintaining stable environments in thermal systems. This guide provides an in-depth look at the , installation, operation, and troubleshooting, helping users maximize the efficiency and longevity of their device. 1. Product Overview and Key Features
For a detailed list of all possible error codes, you should consult the official manual for your specific model. The most common cause of an error is a faulty sensor connection.
To access parameters like PID constants or Input Type , you need Level 2. The manual calls this the "Parameter Setting Mode." | | Meaning | Likely Cause | Solution
Analog Output Type: Connect 4-20mA or 0-10V lines to the modulating valve or power controller, maintaining strict polarity. 3. Front Panel Interface and Keypad Navigation
Hidden in the Output Parameter section ( OUTY ):
Relay Contact, SSR Drive (Voltage Pulse), or 4-20mA Analog. Power Supply: 85–265V AC, 50/60Hz. 2. Terminal Wiring Diagram
Before installation, verify that your specific model matches your system requirements. Specification 100–240V AC, 50/60 Hz Power Consumption Less than 5 VA Display Type Dual 4-digit LED (Process Value & Set Value) Input Types Thermocouples (K, J, E, T, R, S) / RTD (Pt100, Cu50) Control Output Options Relay, SSR drive (12V DC), or 4-20mA current Alarm Output 1 or 2 programmable mechanical relays Sampling Cycle 0.5 seconds Accuracy Class ±0.5% of full scale 2. Wiring and Installation If persists, press ◄+▲ for 10s to factory reset
The "AT" light on the panel will blink. The controller will oscillate the temperature around the setpoint to calculate the ideal PID values.
t-01 or r-01 is the time (in minutes) to ramp to the next temperature.
After 20 minutes of processing, the "AT" light turned off. The display settled rock-steady on . The bottom number stopped fluctuating.