SEW-EURODRIVE MOVIDRIVE B Series Manual

SEW MOVIDRIVE ®  MDX60B/61B System Manual: Comprehensive Interpretation of Inverter Technology and Applications

In the field of modern industrial automation, as the core component of motor control, the performance and reliability of the frequency converter directly affect the efficiency and stability of the entire drive system. SEW-EURODRIVE, as a global leader in driving technology, has its MOVIDRIVE ®  The B-series (MDX60B/61B) frequency converter has become an ideal choice for many industrial applications due to its modular design, powerful control functions, and rich expansion options. This article is based on the official system manual (document number 27793230/EN, version 08/2022), and systematically reviews MOVIDRIVE ®  The system architecture, technical parameters, installation specifications, control modes, communication options, startup debugging, and fault diagnosis of MDX60B/61B provide a detailed technical reference for engineers and system integrators.

System Overview and Product Series

MOVIDRIVE ®  The B-series frequency converter covers three main sub series:

MOVIDRIVE ®  MDX60B: Suitable for asynchronous AC motors, without encoder feedback, and does not support option cards. The power range is 0.55 kW to 315 kW.

MOVIDRIVE ®  MDX61B: Suitable for asynchronous AC motors (with or without encoder feedback) and asynchronous/synchronous servo motors, supporting option card expansion. The power range is 0.55 kW to 315 kW.

MOVIDRIVE ®  MDR60A/61B: Regenerative power supply unit, used to feed back DC bus energy to the grid, suitable for 4Q operation, reducing brake resistance heating.

MDX61B adopts a modular concept and provides up to three option slots:

Encoder slot: used for connecting HIPERFACE ®、 Rotary transformer, SSI absolute value encoder or multi encoder card.

Fieldbus slot: used for bus interfaces such as PROFIBUS, INTERBUS, EtherCAT, PROFINET, DeviceNet, CANopen, etc.

Expansion slot: used for I/O expansion, synchronous operation card, safety module or MOVI-PLC ®  controller.

The equipment is divided into standard version (model suffix 00) and technical version (suffix 0T). The technical version provides additional electronic cam and internal synchronous operation functions, and supports MOVITOOLS ®  Application modules in MotionStudio.

Detailed explanation of control mode

MOVIDRIVE ®  B provides multiple control modes to meet different application requirements:

2.1 VFC Control Mode (Voltage Mode Flux Control)

Applicable motor: Asynchronous AC motor, with or without encoder feedback.

Features: When equipped with an encoder, it can achieve 150% torque in a stationary state; When there is no encoder, 150% torque can be achieved at 0.5 Hz. Suitable for conveyor belts, horizontal drives, and counterweight hoists.

2.2 CFC control mode (current mode flux control)

Applicable motors: Asynchronous servo motors (such as DRL series) must be equipped with encoder feedback.

Features: ≥ 160% torque in static state, excellent concentric operation characteristics, and response to load changes in just a few milliseconds. Suitable for high dynamic positioning and synchronization applications.

2.3 SERVO Control Mode

Applicable motors: Permanent magnet synchronous servo motors (such as CM, CMP series) with rotary transformers or HIPERFACE ®  encoder.

Features: High torque density, wide speed range, precise position control.

All control modes are based on a continuous calculation of the complete motor model, ensuring optimal magnetic field orientation control.

Technical data and selection points

3.1 Power and Overload Capacity

Voltage range: 400/500 V equipment (3 x AC 380-500 V) and 230 V equipment (3 x AC 200-240 V).

Overload capacity:

Size 0:200% I-N for at least 60 seconds.

Size 1-7:150% I-N lasts for at least 60 seconds.

All sizes: 125% I-N continuous operation (no overload, suitable for fans/pumps).

Environmental temperature: 0 ° C to+50 ° C (100% load), derating is required for temperatures exceeding 40 ° C (2.5%/° C to 50 ° C, 3%/° C to 60 ° C).

3.2 Dimensions and Installation

Sizes range from 0 to 7, covering 0.55 kW to 315 kW. Size 0 has a compact structure (45 mm wide), while Size 7 has the highest power (2500 type, AC 470 A). All dimensions must be installed vertically, with at least 100mm ventilation gap reserved at the top and bottom. Sizes 4, 5, and 6 should avoid installing thermal sensitive components within the top 300mm.

3.3 Built in functions

Sizes 0, 1, 2S, and 2 come standard with integrated circuit filters that meet the C2 class limit.

8 isolated digital inputs and 6 digital outputs (one of which is a relay output).

1 TF/TH/KTY input, used for motor thermal protection.

7-segment code display, used for operating status and fault indication.

Independent DC 24V input, capable of parameter setting and diagnosis in case of main power failure.

STO (Safe Torque Off) complies with EN 61800-5-2 and can reach up to Cat.3 PL d.

Installation and EMC compliance

4.1 Mechanical Installation

Using original connectors, the power terminal torque is graded according to size (0.6 Nm for size 0/1/2S and 70 Nm for size 7).