I/O BOARD 6SE6400-7AA00-0BA0 6SE64007AA000BA0 6SE64OO-7AAOO-OBAO 6SE6 400-7AA00-0BA0 1790L811A 179OL811A

Siemens 6SE6400-7AA00-0BA0 | MICROMASTER 440 Vector I/O Module — Drive I/O Expansion Accessory

Part Number: 6SE6400-7AA00-0BA0

Manufacturer: Siemens AG (Germany)

Product Type: Vector I/O Module — Drive Accessory

Platform: MICROMASTER 440

Weight: 0.2 kg

Discontinued: 01/10/2019

Country of Origin: Germany

Expanding the MM440's Signal Capacity

The 6SE6400-7AA00-0BA0 is the Vector I/O Module for the Siemens MICROMASTER 440 AC drive. It extends the drive's built-in I/O terminal set — adding additional digital and analogue inputs and outputs that the MM440's standard terminal strip does not provide.

In applications where the process needs more control signals than the MM440's base I/O supports — multiple analogue setpoints, additional digital interlocks, extra relay outputs — this module provides the additional connection points. The module connects directly to the MM440, integrating its signals into the drive's standard parameter system without external signal converters.

The "Vector" designation reflects the module's design for the MM440's closed-loop vector control context — matching the drive's ability to process multiple analogue and digital signals for precision speed and torque control.

Drive Compatibility and Ordering Note

The 6SE6400-7AA00-0BA0 is specific to the MICROMASTER 440 platform. It is not interchangeable with accessories for the MM430 or MM420. When sourcing, confirm the target drive is an MM440 before ordering.

With discontinuation in October 2019, the industrial aftermarket is now the primary supply source.

Key Specifications

FAQ

Q1: The MM440 shows F0051 (EEPROM fault) after the Vector I/O module was installed. Is the module the cause?

F0051 relates to the drive's parameter memory, not the I/O module hardware. It typically occurs if the I/O module installation triggered a parameter write operation that failed. Reset to factory defaults and re-configure. If F0051 persists without the module fitted, the drive's control board has a separate fault.

Q2: Does the Vector I/O module require special commissioning after installation?

Yes. After fitting the module, the MM440 must recognise the new hardware — this typically occurs at the next power cycle. The additional I/O channels must then be assigned through the drive's parameter system (P-number configuration) before they are active.

Q3: Can this module be used with MICROMASTER 420 or 430 drives?

No. The 6SE6400-7AA00-0BA0 is designed specifically for the MICROMASTER 440. The MM420 and MM430 use different accessory architectures and are not compatible with this module.

Q4: The module is discontinued since 2019. Is it still available?

The industrial aftermarket holds exchange stock for MM440 accessories. Specialist MICROMASTER repair and spare parts suppliers are the most reliable source post-discontinuation.

Q5: Does removing the Vector I/O module affect stored drive parameters?

Removing the module does not erase drive parameters stored in the MM440's EEPROM. However, any parameter assignments that reference the module's additional I/O channels will be pointing to signals that no longer exist — these should be re-assigned to base I/O or cleared when the module is removed.