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FX2N-48ER is an I/O expansion unit for Mitsubishi MELSEC-F series FX2N PLCs.
It features 24-point DC24V input + 24-point relay output, with built-in power supply, and can directly expand I/O points for small and medium-sized automation control systems.
- Model Breakdown & Définition
| Code | Signification | Description |
| FX2N | Série | Mitsubishi high-performance compact PLC series, supporting rich expansion and network communication |
| 48 | Total I/O points | 24 inputs + 24 outputs, total 48 mixed I/O |
| E | Expansion type | Must be used with a main unit; built-in power supply for field devices |
| R. | Output type | Relay output, suitable for AC/DC loads with strong load capacity |
- Key Specifications
Input: 24 points DC24V, sink/source common, response time approx. 10MS
Output: 24 points relay, 2A/AC250V or 2A/DC30V per point; max 8A per common terminal
Power: AC100–240V wide range, 50/60Hz; 460mA DC24V for field devices
Physical: Weight approx. 0.85kilos; Dimensions 182×90×87 mm (L×H×P), DIN rail mountable
Expansion: Jusqu'à 7 expansion units for FX2N series, maximum 256 I/O points
- Common Versions
| Suffixe | Region | Difference |
| -ES/UL | Europe / North America | CE/UL certified, DC24V input, screw terminals |
| -UA1/UL | North America | Supports AC110V input, UL/CUL certified |
| -DS | Europe | DC24V power, screw terminals, CE compliant |
- Avantages & Applications
Avantages: Built-in power supply, simple wiring; relay output can directly drive contactors, solenoids, etc.. Low cost, high reliability.
Applications: Small production lines, equipment automation, building control, machines d'emballage, transformation des aliments, etc..
- Sélection & Usage Notes
- Used with FX2N main units (par ex., FX2N-64MR). Installation order: main unit → expansion unit → special function module.
- Relay response approx. 10MS, not suitable for high-speed switching. For high-speed use, select transistor output (par ex., FX2N-48ET).
- Screw terminals; observe polarity of input/output common terminals to avoid short circuits.
Différences clés: FX2N-48ER vs FX2N-64ER
Main difference: Total I/O points (48 vs 64), corresponding to 24-in 24-out vs 32-in 32-out. Dimensions, weight, and DC24V auxiliary power also differ; other features are identical.
- Specification Comparison
| Article | FX2N-48ER | FX2N-64ER | Difference |
| Total I/O | 48 | 64 | +16 points (8 inputs, 8 outputs) |
| Inputs | 24-point DC24V | 32-point DC24V | +8 inputs |
| Outputs | 24-point relay | 32-point relay | +8 outputs |
| Dimensions | 182×90×87 mm | 220×90×87 mm | 38 mm wider |
| Poids | 0.85 kilos | 1.0 kilos | +0.15 kilos |
| DC24V Aux Power | 460 mA | 600 mA | +140 mA |
| Output Common | 4/8 points per common, 8A max | Same | Identical |
| Expansion Type | Built-in power expansion | Same | Identical |
| Puissance de contrôle | DC5V from main unit via cable | Same | Identical |
| Compatible PLCs | FX1N/FX2N/FX3G/FX3U | Same | Identical |
- Application Impact
- Control Scale
FX2N-48ER: Small/medium machines, packaging, single-line automation
FX2N-64ER: Medium/large systems, multi-line control, more sensors/actuators
- Espace d'installation
FX2N-64ER is wider; extra space required in control panel.
- Field Device Power
FX2N-64ER provides more DC24V current for more sensors.
- Expansion
Both support up to 7 expansion units, maximum 256 I/O.
- Recommandations de sélection
- Choose based on actual I/O; slight redundancy is acceptable.
- Space-limited panels: prefer FX2N-48ER.
- Many DC24V sensors: prefer FX2N-64ER.
- Cost: FX2N-64ER is slightly more expensive.
