SEW MC07B0040-5A3-4-S0 AC Drive | 4kW STO

SEW MC07B0040-5A3-4-S0 AC Drive | 4kW 380-500V

Product Introduction

The SEW MC07B0040-5A3-4-S0 represents a specialized variant of the MOVITRAC® B series, distinguished by its integrated Safe Torque Off (STO) safety function. This 4kW frequency inverter delivers dependable speed control for three-phase asynchronous motors. Specifically, the unit operates on a 380-500VAC supply with a rated output current of 9.5A. The integrated brake chopper enables four-quadrant operation, supporting rapid deceleration and holding torque requirements. Furthermore, the STO function provides a safety-rated method to prevent motor torque generation, certified to Performance Level d according to EN ISO 13849-1. This makes the drive particularly suitable for applications requiring functional safety, such as conveyor systems, packaging machinery, and material handling equipment.

Technical Specifications

The MC07B0040-5A3-4-S0 offers robust electrical performance across a wide voltage range. The nominal input accepts 3×AC 380-500V at 50/60Hz. At 400VAC, the rated mains current reaches 8.6A, while the recommended motor power is 4.0kW (5.4 HP). The drive supports V/f control characteristics and accommodates motor speeds up to 5500 RPM. Additionally, output frequency extends to 599Hz for high-speed spindle applications.

For braking requirements, the integrated chopper accommodates a minimum braking resistance of 68Ω. Meanwhile, current limiting is set at 150% of nominal output current for at least 60 seconds. Terminal connections accept wire sizes up to 4mm² with a tightening torque of 0.6Nm. The unit achieves Category C2 suppression levels per EN 55011, minimizing electromagnetic interference in industrial environments.

Safety Function Overview

The MC07B0040-5A3-4-S0 incorporates Safe Torque Off as a standard feature on this size 0L chassis. Specifically, the STO function safely removes power from the motor terminals, preventing torque generation without requiring contactor-based disconnection. The safety function achieves Performance Level d according to EN ISO 13849-1 and complies with EN 61800-5-2 requirements.

Installation of the safety circuit requires external 24VDC supply connected to terminal X17. Notably, the bridging contacts at X17:1 to X17:4 must be removed for safety-rated operation. The safety wiring should be routed separately from power cables and shielded appropriately. Furthermore, the maximum permissible cable length for the safety-rated 24V supply is 100 meters.

Mechanical and Environmental Parameters

This SEW inverter features a compact form factor optimized for control cabinet installation. The size 0L chassis measures approximately 80mm (W) × 273.5mm (H) × 163.5mm (D). Natural convection cooling suffices for standard operation, though the unit may require forced cooling in demanding conditions. The drive weighs approximately 2.1 kg (4.6 lb).

Regarding environmental tolerance, the inverter operates nominally up to 50°C ambient temperature. With current derating, operation extends to 60°C. The protection class is IP20, suitable for clean industrial environments. The unit complies with Low Voltage Directive requirements and relevant EMC standards.

Installation Guidelines

Proper mounting ensures reliable long-term operation. First, select a vertical position within the cabinet to promote airflow across the heat sink. Next, maintain adequate clearances around the unit per SEW specifications. The MC07B0040-5A3-4-S0 supports wall-mount installation using rear mounting holes.

Wiring procedures require careful attention to terminal assignments. The mains supply connects to L1, L2, and L3 terminals, while the motor attaches to U, V, and W outputs. Additionally, the brake resistor connects to the designated terminals when dynamic braking is needed. For the STO function, connect the safety-rated 24VDC supply to X17 terminals. Finally, verify all parameter settings match the specific application requirements before commissioning.

Packaging List

• 1 × SEW MC07B0040-5A3-4-S0 MOVITRAC® B Frequency Inverter

• 1 × Installation Instructions

Shipping via Fedex, UPS, or DHL.

FAQ

Q1: What is the power rating of the SEW MC07B0040-5A3-4-S0?
This inverter supports 4.0kW (5.4 HP) motor power. It delivers 9.5A rated output current at 400VAC supply.

Q2: Does this drive include a braking chopper?
Yes, the MC07B0040-5A3-4-S0 features an integrated brake chopper. This enables four-quadrant operation with an external braking resistor.

Q3: What safety function does this model provide?
The drive includes Safe Torque Off (STO) certified to Performance Level d. This safety function prevents motor torque generation without contactor-based disconnection.

Q4: What is the supply voltage range for this inverter?
The MC07B0040-5A3-4-S0 accepts 3×AC 380-500V at 50/60Hz. Note that currents reduce at 500V supply.

Q5: Are special wiring requirements needed for the STO function?
Yes, the safety-rated 24VDC supply requires separate routing from power cables. The maximum cable length is 100 meters, and bridging contacts at X17 must be removed for safety operation.