EquipVector
Evidence-backed decisions for obsolete industrial parts — prototype experiment

Siemens · SIMOREG DC Master · DC drive

Siemens 6RA7 087-6DV62-0

DiscontinuedMEDIUM

What should replace this part?

Our analysisRecommended path: Replace with the SINAMICS DCM successor; bridge on specialist repair

Your options

Our analysisSINAMICS DCM 6RA8087-6DV62-0AA0
Industry Mall successor field and the OEM DCM manual current-class match point at 6RA8087-6DV62-0AA0; parameter, terminal and encoder rework required.
Our analysisSpecialist repair / used bridge
Specialist DC-drive repair market plus used and refurbished channels bridge the swap.

Replacement analysis

Original: 6RA7 087-6DV62-0 (SIMOREG DC Master 850A 4Q converter)
↓
Replacement: 6RA8087-6DV62-0AA0 (SINAMICS DCM)

Relationship: OEM replacement (engineering work still required) MEDIUM

Migration / engineering work required — not a drop-in. This is not presented as a drop-in replacement.

Analyst note: Successor via Mall-mirror excerpt + OEM DCM manual current-class match. SIOS page JS-blocked; capped at MEDIUM.

What changes?

SoftwareParameter migration runs through STARTER or SCOUT commissioning tools.
WiringArmature, field and CUD terminal remapping required.
CommunicationsPROFIBUS telegram and GSD file must be updated.
AccessoriesEncoder or tacho interface converts via SMC30 module.
MountingFootprint and cabinet fit must be checked.

Anything not listed here is unknown — the evidence does not establish it.

Can I still buy the original?

Repair: Verified — see evidenceUsed: Verified — see evidenceRefurbished: Verified — see evidence

New-original availability is not claimed unless evidence supports it. Availability is never implied by the existence of a listing alone.

Lifecycle

Status: Discontinued

Discontinuation date: 2020-10-01 (spares to 2022-10)

Lifecycle source

Evidence

Every important claim traces to a source below. OEM source means the manufacturer published it; third-party source means a distributor, repair company or reseller states it; our analysis connects them — and is labeled as such.

OEM / manufacturer sources

OEM source MEDIUM Siemens · Tier A
DCM manual selection context lists 6RA8087-6DV62-0AA0 850A class
“6RA8087-6DV62-0AA0 850 [A] in SIMOREG-CCP to DCM selection context”
Establishes: oem_replacement · View source · Note: OEM doc supports platform continuity + current class

Third-party sources

Third-party source MEDIUM AoteWell quoting Siemens notice · Tier C · 2026-09-10
6RA70 totally discontinued 2020-10-01; spares through Oct 2022; alternative 6RA80 SINAMICS DC MASTER
“6RA70 SIMOREG DC MASTER products will be totally discontinued effective October 1, 2020... spare parts... through October, 2022”
Establishes: oem_replacement · View source · Note: Verbatim OEM-style notice via reseller; needs SIOS for HIGH
Third-party source MEDIUM AoteWell mirroring Industry Mall · Tier C · 2018-07-06
Spare part; no longer available; successor 6RA8087-6DV62-0AA0
“Product Description *spare part* SIMOREG DC Master... Note Product is no longer available. Successor: 6RA8087-6DV62-0AA0”
Establishes: oem_replacement · View source · Note: Mall-field mirror; exact successor MLFB stated

Why you might be searching this

SIMOREG DC drive fault on a mill or press line; what does the DCM swap require?

Need help deciding between repair, replacement, or migration?

Request a replacement review for 6RA7 087-6DV62-0 — repair assessment, sourced original, replacement quote, or migration scoping.

Request a replacement review

Research status: done. Confidence MEDIUM reflects the evidence above, not marketing. Commercial paths: SINAMICS DCM quote · Specialist DC-drive repair. No search-volume, pricing or revenue claims are made on this page.