Original Siemens 6SE70 Inverter/Converter 6SE7016-1TA51 6SE70161TA51 6SE7O16-1TA51 6SE7 016-1TA51

6SE7016-1TA51 | Siemens SIMOVERT Masterdrives VC DC-AC Compact Inverter — DC 510–650V / 2.2kW / 6.1A / 51-Revision Hardware

6SE7016-1TA51 and 6SE7016-1TA61 — Two Revisions, Same Specification

The 6SE7016-1TA51 is the earlier-revision sibling of the 6SE7016-1TA61 within the SIMOVERT MASTERDRIVES VC compact inverter family. Both share the same electrical specification — DC 510–650V input, 2.2kW output, 6.1A VT / 5.6A CT — but with different hardware generations:

In Siemens SIMOVERT MASTERDRIVES nomenclature, the two-digit suffix (51, 61) identifies the hardware generation. The "61" revision represents a later production generation compared to the "51" revision — introducing component updates and manufacturing refinements while maintaining the same electrical performance specification.

Key Specifications

DC-AC Architecture — Same as 1TA61

Like the 6SE7016-1TA61, the 6SE7016-1TA51 is a DC-AC inverter — not an AC-AC converter. It receives DC bus voltage (510–650V DC) from a shared SIMOVERT MASTERDRIVES supply module and converts this to variable-frequency, variable-voltage 3-phase AC for the connected motor.

This DC-AC architecture places the 1TA51 in common DC bus multi-drive installations:

Common DC bus operation: Multiple compact inverter units — including both 1TA51 and 1TA61 variants — can share a single DC bus from one supply module. Energy from decelerating motors returns to the shared DC bus and is immediately available to accelerating motors on the same bus.

Flexible system building: The 51-revision and 61-revision compact units can coexist on the same DC bus — the electrical interface is compatible, allowing mixed-revision systems to operate correctly.

Application Scenarios

Replacement for 51-revision unit in existing installation: An older SIMOVERT MASTERDRIVES installation uses 51-revision compact inverter units. When a unit fails, 6SE7016-1TA51 provides a like-for-like hardware replacement — maintaining consistency with the existing 51-revision hardware in the installation.

Common DC bus extension: A facility adding a 2.2kW axis to an existing SIMOVERT MASTERDRIVES DC bus system fitted with 51-revision units installs a 6SE7016-1TA51 to maintain hardware consistency.

FAQ

Q1: Is 6SE7016-1TA51 electrically compatible with 6SE7016-1TA61 on the same DC bus?

Yes — both the 51 and 61 revisions share the same DC bus voltage specification (510–650V DC) and connect to the SIMOVERT MASTERDRIVES common DC bus in the same way. Mixed-revision installations operate correctly. The hardware revision differences are internal to each compact unit and do not affect the DC bus interface.

Q2: Can 6SE7016-1TA51 (51-revision) be replaced directly by 6SE7016-1TA61 (61-revision)?

In most cases yes — the electrical performance is identical. However, confirm the option board compatibility between revisions: if the existing 51-revision unit has PROFIBUS, encoder, or technology option boards fitted, verify these option boards are compatible with the 61-revision hardware before substituting. If option boards do not need to transfer, the 61-revision is a straightforward electrical substitute.

Q3: What SIMOVERT MASTERDRIVES supply module provides the 510–650V DC bus for 6SE7016-1TA51?

The DC bus for 6SE7016-1TA51 is provided by a SIMOVERT MASTERDRIVES supply module — a Rectifier Unit (RU), Uncontrolled Rectifier Unit, or Active Front End (AFE) unit. The supply module is sized for the total power demand of all compact inverter units sharing the DC bus. The supply module's DC output must fall within 510–650V DC for correct 1TA51 operation.

Q4: What safety precautions apply when replacing 6SE7016-1TA51?

Power down the complete SIMOVERT MASTERDRIVES installation and isolate the supply module from mains. Verify the DC bus has discharged below 50V before touching any compact inverter unit — the shared bus capacitors retain hazardous voltage after mains isolation. Follow the SIMOVERT MASTERDRIVES maintenance manual's safe isolation procedure for compact unit replacement.