The Schneider Electric Altivar 71 (ATV71HU15M3Z) is a high-performance variable frequency drive (VFD) designed for constant torque applications. Much like the “N4” series, this “M3Z” version is tailored for specific voltage environments, primarily 200V-240V systems.
The “Z” suffix confirms that this unit is supplied without a graphic display terminal, intended for use in networked systems or remote-control setups.
1. Catalog Number Breakdown
| Code | Meaning |
| ATV71 | High-performance series for heavy-duty applications. |
| H | Compact IP20 enclosure. |
| U15 | Power rating: 1.5 kW (approx. 2 HP). |
| M3 | Input voltage: 200V to 240V AC, 3-Phase. |
| Z | No graphic display terminal included. |
2. Technical Specifications
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Continuous Current: Approximately 8.0 Amps at 230V.
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Input Phase: While rated for 3-phase, these “M3” models are often used in high-power single-phase environments, though significant derating is required.
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Overload Torque: 170% for 60 seconds / 220% for 2 seconds.
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Control Frequency: 0.1 to 599 Hz.
3. Power and Control Wiring
The 200V series requires specific attention to wire sizing and fusing due to higher current draw compared to 400V models.
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Mains Terminals ($L1, L2, L3$): 3-phase 200/240V input.
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Motor Terminals ($U, V, W$): Connection to the 3-phase motor.
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Braking Resistor ($PA/+, PB$): Essential for applications with fast deceleration or vertical loads (hoists/elevators).
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Control Strip: Provides 6 logic inputs, 2 analog inputs, 2 relay outputs, and 1 analog output.
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