This manual provides specifications, wiring diagram, operation instructions, parameter settings and communication features for the MTA-72 digital…
The MTA-72 is a digital temperature controller that supports a wide range of temperature sensors, analog inputs and output options. It offers PID and ON/OFF control, built‑in alarm functions, over‑peak suppression and Modbus RTU communication.
The manual includes the controller specifications, wiring diagrams, step‑by‑step instructions for basic operation, configuration of set‑points, autotuning, alarm setup and detailed parameter tables. It also describes the panel layout, key functions and troubleshooting tips. This manual is written in Spanish.
| Power supply | 85‑265VAC 50/60 Hz, 24VDC or 24VAC (optional) |
|---|---|
| Input types | Thermocouples (K,E,J,N,W,U,Re,25,S,T,R,B), PT100 (up to 800 °C), voltage/current ranges 0‑5VDC, 0‑10VDC, 0‑50mV, 4‑20mV, 0‑20mA, 2‑10VDC, 1‑5VDC, 4‑20mA |
| Display | Two lines of 4 digits |
| Output options | Relay/Logic/4‑20 mA/0‑5 VDC/0‑10 VDC/1‑5 VDC (selected by order) |
| Maximum power consumption | 5 VA |
| Control method | PID, ON/OFF (P=0), proportional (I=0), derivative (D=0) |
| Measurement precision | 0.2 % of full scale |
| Resolution of inputs | 0.1 for thermocouples and RTD, 0.001 for analog inputs |
| Communication protocol | Modbus RTU over RS‑485 |
| Alarm relay output | 250 V AC, 3 A (resistive load) |
| Control relay output | 250 V AC, 5 A (resistive load) |
The controller operates from 85‑265 VAC at 50/60 Hz and can be powered by 24 VDC or, on request, 24 VAC.
The MTA‑72 supports Modbus RTU communication over an RS‑485 interface.