Mitsubishi FX1N-40MT-001 PLC 40 I/O Transistor

FX1N-40MT-001 24 Inputs 16 Outputs AC Powered Unit

Product Introduction

The Mitsubishi FX1N-40MT-001 belongs to the economical FX1N series of programmable controllers. This main unit provides 24 sink-type input points and 16 transistor output points. It operates on a wide 85-264 VAC power supply at 50/60 Hz with only 32W consumption.

The built-in EEPROM memory holds 8000 steps without a backup battery. You can change programs during RUN, which saves significant downtime. CPU processing speed reaches 0.55 µs per basic instruction and 3.7 µs for application instructions.

Moreover, this FX1N-40MT-001 supports two independent axes for positioning with maximum 100kHz pulse output. The transistor output type makes it perfect for servo control and high-speed switching applications.

Technical Specifications

• Total I/O channels: 40

• Input points: 24 (DC24V, sink type)

• Output points: 16 (transistor, sink output)

• Power supply: 85-264 VAC, 50/60 Hz

• Power consumption: 32W

• Program memory: 8000 steps EEPROM (built-in)

• Basic instruction speed: 0.55–0.7 µs

• Application instruction speed: 3.7–100 µs

• Positioning output: 2 axes, 100kHz max

• High-speed counters: 60kHz max (1-phase), 30kHz (2-phase)

• Built-in analog volume: 2 points (VR1, VR2)

• Real-time clock: Built-in (capacitor-backed, 10 days)

• Dimensions (WxHxD): 285×90×87 mm

• Weight: 1.65 kg

Input Specifications

• Input format: Sink (NPN)

• Input signal voltage: DC24V ±10%

• Input impedance: 3.3kΩ (X000-X007), 4.3kΩ (X010+)

• Response time: ~10ms (adjustable via D8020)

• High-speed inputs: X000-X007 support digital filter (0-15ms)

Output Specifications

• Output type: Transistor, sink

• External power: DC5–30V

• Resistive load: 0.5A per point, 0.8A per COM

• Response time (Y000-Y001): 5µs OFF→ON and ON→OFF

• Response time (Y002+): 0.2ms or less

Built-in High-Speed Counter Function

The FX1N-40MT-001 includes dedicated high-speed counter inputs:

• 1-phase 1-count: Up to 60kHz (C235, C236)

• 1-phase 2-count: Up to 60kHz (C246)

• 2-phase 2-count: Up to 30kHz (C251)

• Total frequency limit: 60kHz when using pulse density instructions

Positioning & Pulse Output Features

• Controlled axes: Independent 2-axis

• Maximum frequency: 100kHz

• Pulse output instructions: PLSY (pulse output), PLSR (accel/decel)

• Positioning instructions: ZRN (homing), PLSV (variable speed), DRVI (relative), DRVA (absolute)

• Output format: Pulse train + direction

Memory & Device Allocation

• Input relays: X000-X177 (128 points, octal)

• Output relays: Y000-Y177 (128 points, octal)

• Auxiliary relays: M0-M383 (general), M384-M511 (EEPROM keep), M512-M1535 (capacitor keep)

• Timers: T0-T199 (100ms), T200-T245 (10ms), T246-T249 (1ms integration)

• Counters: C0-C15 (16-bit up), C16-C31 (EEPROM keep), C32-C199 (capacitor keep), C200-C255 (32-bit up/down, high-speed)

• Data registers: D0-D127 (general), D128-D255 (EEPROM keep), D256-D7999 (capacitor keep)

• File registers: D1000-D7999 (max 7000 points, EEPROM configurable)

Mechanical & Environmental Parameters

The Mitsubishi FX1N-40MT-001 uses a removable terminal block with M3 screws for easy wiring. Its compact 285mm width fits standard control panels efficiently.

Operating temperature: 0°C to 55°C
Storage temperature: -20°C to 70°C
Relative humidity: 35–85% RH (non-condensing)
Vibration (DIN rail): 10-57Hz at 0.035mm amplitude
Vibration (direct mount): 10-57Hz at 0.075mm amplitude
Shock resistance: 147 m/s², 11ms, half-sine pulse
Noise immunity: 1000Vp-p, 1µs width, 30-100Hz
Dielectric strength: AC1500V (power to ground), AC500V (I/O to ground)
Insulation resistance: 5MΩ minimum at DC500V
Grounding: Class D (100Ω or less)

Frequently Asked Questions (FAQ)

1. Does the FX1N-40MT-001 require a backup battery for program retention?
No. The program stores in built-in EEPROM (8000 steps) and does not need a battery. However, an optional battery can extend the real-time clock and capacitor-keep device backup.

2. What is the maximum pulse output frequency for positioning?
The FX1N-40MT-001 supports 100kHz maximum pulse output per axis for Y000 and Y001. This makes it suitable for servo motor control.

3. Can I use this PLC with 2-phase encoders?
Yes. It supports 2-phase 2-count inputs (A/B phase) on C251 at 30kHz maximum. Use terminals X000 (A-phase) and X001 (B-phase) for C251.

4. How do I keep data in capacitor-backed devices for more than 10 days?
The large-capacity capacitor holds data for approximately 10 days without power. For longer retention, install the optional FX1N-32BL battery.

5. Is programming possible while the PLC is running?
Absolutely. The FX1N-40MT-001 supports RUN-time program writing. You can modify the program using GX Works2 without stopping the controller.