Overview
The Mitsubishi FX3U-16MT/DSS DC24V DC power supply. Built-in DC 5V / 500mA auxiliary power supply, which can supply external sensors and small modules. The machine’s I/O inputs: 8 points + outputs: 8 points. DIN rail installation is available, and it can also be fixed with screws. IP20. Software input response time: three levels of selectable. Source-type transistor output, suitable for high-frequency actions. DC 5V ~ DC 30V load voltage range. Built-in surge absorption circuit to suppress reverse electromotive force. Three language program function sequence table. Ladder diagram, instruction table, SFC. 8000 points general data register. 8-axis high-speed counter. 4-axis pulse output. RS-422 interface. Battery data retention function, self-diagnosis function.
Specification
| Category | Item | Specification |
|---|---|---|
| Model Definition | Model | FX3U-16MT/DSS |
| Description | FX3U series PLC, 16 I/O points, Transistor output, DC24V power supply, Source type output | |
| Power Supply | Main Power Voltage | DC 24V (16.8V ~ 28.8V) |
| Power Consumption | Approx. 25W | |
| Built-in Auxiliary Power | DC 5V / 500mA | |
| Inrush Current | Max. 15A | |
| Physical Parameters | Total Local I/O Points | 16 points (8 Input + 8 Output) |
| Installation Method | DIN rail mounting / Screw fixing | |
| Dimensions | 130 × 90 × 86 mm | |
| Weight | Approx. 0.6 kg | |
| Protection Class | IP20 | |
| Input Specifications | Input Type | Sink / Source switchable (Default: Sink) |
| Input Voltage | DC 24V | |
| Input Current | Approx. 7mA per point | |
| ON Voltage | ≥ DC 15V | |
| OFF Voltage | ≤ DC 5V | |
| Response Time | 1ms / 5ms / 10ms (Default: 10ms) | |
| Output Specifications | Output Type | Source type Transistor |
| Load Voltage | DC 5V ~ DC 30V | |
| Continuous Output Current | 0.5A per point | |
| Peak Output Current | 1A per point | |
| Output Response Time | ≤ 0.2ms | |
| Protection Circuit | Built-in surge absorption circuit | |
| Program & Operation Performance | Program Memory | Built-in 64K steps RAM, support memory card expansion & run-time write |
| Basic Instruction Speed | 0.065μs per instruction | |
| Applied Instruction Speed | 0.642μs per instruction | |
| Programming Language | Ladder Diagram, Instruction List, SFC | |
| Program Protection | Password protection, write protection | |
| Internal Devices | General Auxiliary Relay | 3072 points |
| Latched Auxiliary Relay | 720 points | |
| Timer | 256 points | |
| Counter | 235 points | |
| General Data Register | 8000 points | |
| Latched Data Register | 7000 points | |
| File Register | Max. 32K points | |
| High-speed Functions | High-speed Counter | Max. 8 axes; Single-phase: 100kHz, Two-phase: 50kHz |
| Pulse Output | Max. 4 axes, Max. 100kHz, support positioning control | |
| I/O Expansion | Max. Local Expanded I/O | 256 points |
| Max. Total I/O (Including Remote) | 384 points | |
| Compatible Modules | FX3U series extension modules, analog modules, positioning modules | |
| Communication | Built-in Interface | RS-422 |
| Standard Protocol | MODBUS-RTU (Master / Slave) | |
| Expandable Communication | RS-232, RS-485, Ethernet, CC-Link | |
| Environmental Conditions | Operating Temperature | 0℃ ~ 55℃ |
| Storage Temperature | -25℃ ~ 75℃ | |
| Operating Humidity | 5% ~ 95% RH (Non-condensing) | |
| Vibration Resistance | Compliant with JIS C 0911 | |
| Certification & Extra Functions | Certification | CE, UL/cUL, RoHS |
| Additional Functions | Built-in RTC, Data retention after power failure, Self-diagnosis |
FAQ
1.What are the standard input turn-on and turn-off voltages for the FX3U-16MT/DSS?
The Input conduction voltage ≥ DC15V, open circuit voltage ≤ DC5V
2.What is the total maximum point count of the FX3U-16MT/DSS including the remote I/O?
Supported. The Including remote I/O, the entire machine has a maximum of 384 points.
3.What is the internal auxiliary power supply specification of the FX3U-16MT/DSS unit?
The DC 5V / 500mA
4.What are the different settings for the input response time of the FX3U-16MT/DSS?
The 1ms, 5ms, 10ms (default 10ms)
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