SEW MOVIDYN ® Series servo controller

Reconnect the X21 terminal (it can be temporarily removed before debugging to prevent the motor from starting accidentally).

Attention: After removing the protective cover, the equipment protection level is IP00, and there may still be dangerous voltage within 10 minutes after power failure.

Electrical installation and EMC compliance

3.1 Interconnection between power module and shaft module

DC bus connection: Use the accompanying copper bars or wires to connect power module X1 (+VZ, - VZ) to shaft module X1. All connections, including PE, must be secure with a torque of 3.5 Nm.

24V bus: Use the included cable to connect the power module X3 (output) to the first axis module X2 (input), and then connect it in series to the next axis module X2. The wire cross-section is 1.5 mm ².

Data bus: Use DBK data bus cables to connect the X5 interfaces at the bottom of each module. Unused connectors should not be cut off, but should be folded and tied securely.

3.2 Connection between main power supply and motor

Input fuse: Select the appropriate rated fuse (such as 30 A/600 V) according to the UL/cUL table and install it after the power branch point.

Motor cable: up to 100 meters long, shielded cable is required. The phase sequence must be correct (U, V, W correspond to the motor terminals). It is strictly prohibited to connect the output filter between the servo controller and the motor.

Braking resistor connection: Connect to X4 (+, R) of MPB or X1 (+, R) of MKS. The wires should be twisted in pairs or tightly arranged side by side, and the cross-section should be selected according to the maximum braking current. The wire has a high voltage of about 900V during rated operation, pay attention to insulation.

Cooling fan: The fan of DKF radiator is connected to X2.2 (black line) and X2.3 (red line) of MPB or X6.1 (red) and X6.2 (black) of MPR.

3.3 Power Calculation of 24V Power Supply and External Power Supply

MOVIDYN ®  The system integrates a switch power supply internally, but its capacity is limited. The total power consumption of each module and option card needs to be calculated. If it exceeds the internal power capacity, an external 24V power supply must be connected.

Typical power consumption reference:

MAS51A Axis Module: 5 W (Type 005) to 15 W (Type 060)

Control/Evaluation Board: 12 W (typical)/16.3 W (maximum)

AIO11 option card: 8 W (typical)/13.1 W (maximum)

API/APA positioning card: 10 W (typical)/110 W (maximum, when binary output is fully loaded)

For example, a system containing MPB, MAS51A010 (with AIO11), and MAS51A030 (with API12) typically has a power consumption of about 54.5 W, with a maximum of 168.2 W, far exceeding the 240 W of the internal 24V power supply of MPB. In fact, 168W<240W can still be met, but it should be noted that the 110W of API is an extreme case. When the internal power supply is insufficient or communication and position detection need to be maintained when the main power supply is disconnected, an external 24V (18-30V) must be connected to X21 of MPR or X02 of MPB.

3.4 EMC compliant installation (compliant with EN 61800-3 Class B limits)

To achieve low emission and high anti-interference, the following measures must be taken:

Input filter: Install NF series input filters (such as NF 025-503) at the power input end. The connection between the filter and MOVIDYN shall not exceed 400 mm, and unshielded twisted pair cables shall be used.

Output choke: Use HD00X output choke (ring-shaped magnetic core) on the output side of the motor, with all three-phase wires passing through the magnetic core together (PE wires and shielding layers must not pass through). After using a choke coil, the motor cable can be unshielded.

Shielding and grounding:

All signal cables (rotary transformers, encoders, binary I/O) must use shielded twisted pair cables.

Large area grounding at both ends of the shielding layer (through shielding clamps or metal cable joints).

To avoid ground loops, one end of the shielding layer can be grounded through a capacitor (220 nF/50V).

For double-layer shielded cables, the outer shield is connected to the inverter end, and the inner shield is connected to the other end.

Grounding: MOVIDYN units must be high-frequency grounded through unpainted metal surfaces (such as mounting plates).

The "Residential EMC Compliance Installation Diagram" (Figure 10) in the manual shows the complete filter, choke, and shielding configuration.

3.5 UL compliant installation points

Only use 60/75 ° C copper cable.

Terminal torque: MPB/MPR/MAS is 3.5 Nm (31 lb · in), MKS is 1.5 Nm (13.3 lb · in).

Maximum power supply current and voltage: According to the table, MPB/MPR/MAS models are suitable for 5000 A/500 V systems; MKS 005/010/015 is suitable for 10000 A/500 V systems with fuses of 30 A/600 V.

UL certification is only applicable to grounded star point (TN/TT) systems and not to IT systems.

Rotary Transformer and Signal Interface

4.1 Rotary Transformer (Resolver) Connection

DFS/DFY synchronous motors come standard with a rotary transformer as position/speed feedback. Connect to X31:

Signal terminal to wire color (pre fabricated cable)