Product details
FX3SA-14MR-CM – Compact PLC with Relay Outputs
This Mitsubishi Electric PLC delivers reliable control for small machines. It combines 6 digital inputs with 4 relay outputs. The unit operates on 100-240 V AC power. Ideal for automation tasks requiring simple wiring and rugged performance.
Technical Specifications & Product Data
- Brand & Model
- Mitsubishi Electric – FX3SA-14MR-CM
- Power Supply
- Rated voltage: 100–240 V AC, 50/60 Hz
- Consumption: ≤30 VA, inrush current ≤20 A
- Input Specifications
- Number of inputs: 6 digital (sink/source)
- Rated input voltage: 24 V DC
- Input impedance: approx. 4.3 kΩ
- Response time: 1 ms (adjustable filter)
- Output Specifications
- Type: 4 relay outputs (mechanical)
- Load rating: 2 A per point (resistive), 220 V AC / 30 V DC max
- Switching speed: 10 ms max
- Service life: 20 million cycles (mechanical), 100k cycles (rated load)
- Performance & Accuracy
- Scan time: 0.2–0.5 µs per step (basic instructions)
- Processing resolution: 16-bit internal data
- Linear response for analog expansion: ±1% accuracy
- Sensitivity: responds to 24 V DC ON/OFF signals with hysteresis
- Environmental & Physical
- Operating temperature: 0°C to +55°C
- Storage temperature: –20°C to +70°C
- Humidity: 10–90% RH non-condensing
- Vibration resistance: IEC 61131-2 compliant (5–150 Hz, 3.5 mm amplitude)
- Noise immunity: 1000 Vp-p, 1 µs duration; conforms to IEC standards
- Pollution degree: 2, installation category II
- Memory & Backup
- Program memory: 4k steps (EEPROM)
- Data retention: non-volatile, no battery required
- Clock backup: supercapacitor (approx. 10 days)
Installation & Mounting Guide
- Mounting methods
- DIN rail (35 mm): snap-on with release lever
- Direct screw: M4 screws, panel holes provided
- Clearance & spacing
- Keep 50 mm above and below for airflow
- Maintain 20 mm between units when side-by-side
- Wiring guidelines
- Wire gauge: 0.75–1.5 mm² (AWG 18–16)
- Torque: 0.5 N·m for terminal screws
- Grounding: separate Class D ground (≤100 Ω)
Debugging & Maintenance Simplicity
- Diagnostic indicators
- LEDs: POWER (green), RUN (green), ERROR (red)
- I/O status LEDs for each input/output point
- Programming & debugging access
- RS-422 programming port (front panel)
- Supports GX Works2 or GX Developer software
- Online monitoring & device test functions
- Maintenance features
- Removable terminal blocks for quick replacement
- Self-diagnosis: watchdog timer, memory error detection
- Latch relay backup via EEPROM – no battery swap
Compatibility & Expandability
- Expansion modules
- Supports up to 4 I/O or special function blocks
- Compatible: FX2N, FX3U series expansion units
- Communication options
- Built-in: RS-422 for programming/HMI
- Optional: RS-232C adapter, RS-485 communication board
- Software & third-party
- GX Works2 (English/Chinese versions)
- Compatible with most SCADA, HMI brands via serial
Certifications & Compliance
- Regional approvals
- CE marking (EMC & LVD directives)
- UL/cUL listed (File E- … safety standard)
- RoHS compliant (environmental)
- Industry standards
- IEC 61131-2 (Programmable controllers)
- EN 61000-6-2 (immunity for industrial environments)
Package Contents
- FX3SA-14MR-CM main unit (with terminal blocks)
- Quick start guide & user manual (digital access via QR code)
- Product identification label & certification sheet
- No programming cable – order separately
Warranty & Shipping Information
- 12-month warranty – covers defects in material and workmanship
- Dispatch time – within 12 to 24 hours after order placed
- Express carriers – FedEx, UPS, DHL with tracking number provided
- Shipping worldwide – duties and taxes calculated at checkout
Expert Review – Engineer’s Insight
“The FX3SA-14MR-CM stands out for its robust relay output stage and wide AC supply. It handles inductive loads like contactors and small motors directly. Programming is intuitive via GX Works2. The noise immunity meets factory floor demands. A cost-effective solution for standalone machines.” – Senior Controls Engineer, Powergear X.
Typical Applications & Compatible Equipment
- Conveyor systems – controls motors, photoeyes, and emergency stops
- Packaging machinery – timing sequences and counting functions
- Small assembly stations – discrete part handling & interlocking
- HVAC automation – fan coil units, damper actuators
- Industrial ovens & curing chambers – temperature steps via relays
- Lighting control panels – scheduled switching and scene control
Frequently Asked Questions (FAQ)
- What software do I need to program this PLC?
Use GX Works2 (version 1.77F or later) or GX Developer. Both fully support FX3SA series instructions. - Can I use 24 V DC sensors directly with inputs?
Yes. Inputs accept 24 V DC sink/source. An external 24 V power supply is required for sensors. - How many expansion modules can I attach?
Up to 4 expansion units (I/O or special function). Total I/O points depend on the module type used. - Does this PLC include a real-time clock battery?
No built-in battery. Clock uses supercapacitor (10 days backup). Optional battery (FX3U-32BL) can be added. - Is the programming cable included in the box?
No. Programming cable is sold separately. Use Mitsubishi FX-USB-AW or a compatible RS-422 adapter. - What is the maximum switching frequency for relay outputs?
At rated load, maximum switching is 1 Hz. For high-speed applications, choose transistor output model (FX3SA-14MT).
Experience-Based Buying Guide
- Choose relay outputs when: switching AC loads (motors, valves) or low-frequency control
- Verify input voltage: inputs are 24 V DC only – do not connect AC power
- Order spare terminal blocks: reduces downtime during field maintenance
- For new designs: use this model if I/O need ≤14 points and expansion ≤4 modules
- Programming efficiency: use structured labels in GX Works2 for better readability
- Cost consideration: this model gives best value for relay-based small control panels
Selection Guidance – Compare with Alternatives
- Higher speed outputs needed: choose FX3SA-14MT (transistor type)
- More I/O required: upgrade to FX3G or FX3U series (up to 256 I/O)
- Built-in analog I/O: select FX3S series with analog add-on module
- This FX3SA-14MR-CM fits 90% of small relay-based control tasks
Contact Information & Support
For inquiries, technical support, or bulk orders, reach out to our automation team.
📧 sales@powergearx.com
📞 +86 18030005825 (WhatsApp)
Copyright © 2026 Powergear X Automation Limited. All rights reserved.
Original Source: https://www.powergearx.com/
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