Bosch Rexroth DM 15K Servo Drive: DM 15K 1101-D 1070084662-110 02-262202-00 16-262201-00 MPU818-N035.0-10.96

Technical Dossier

Product Details And Specifications

Bosch Rexroth DM 15K Series: Comprehensive Module Range and Technical Overview

The Bosch Rexroth DM 15K is a modular digital servo drive unit belonging to the Rexroth DIAX series of AC servo drive systems. Deployed extensively across global heavy industry — including petrochemical refineries, nuclear power auxiliary systems, automotive body-in-white lines, and continuous casting plants in steel mills — the DM 15K platform represents a mature, field-proven architecture for closed-loop axis control. Its 15 kVA power class positions it as a mid-range drive capable of driving synchronous and asynchronous servo motors in demanding multi-axis configurations. The unit interfaces with Rexroth motion controllers via SERCOS fiber-optic ring or analog command channels, depending on the firmware and interface module fitted. Installed base across EMEA and Asia-Pacific manufacturing facilities remains substantial, making reliable spare parts sourcing a critical operational requirement for plant maintenance teams.

The Evolution of DM 15K Architecture

The DM 15K belongs to the Bosch Rexroth DIAX03 and DIAX04 drive generations, introduced in the early 1990s as successors to the earlier TDM and KDV analog drive families. The DIAX architecture introduced digital closed-loop control with parameterization via the BTV04 operator panel or RS-232 serial interface, replacing potentiometer-based tuning. The 1101-D firmware designation indicates a specific control software revision governing commutation, current loop bandwidth, and fieldbus behavior. The 1070084662-110 assembly number identifies the complete drive unit at the Bosch Rexroth internal part numbering level, while sub-assemblies 02-262202-00 (power board) and 16-262201-00 (control board) are independently replaceable line-replaceable units (LRUs). The MPU818-N035.0-10.96 designates the motor-drive pairing parameter set — motor type MPU818, nominal current 35.0 A, firmware index 10.96. Compatibility between firmware revisions and motor parameter sets is strictly version-controlled; mismatched combinations will trigger F-code faults at commissioning. The DM 15K has been superseded by the Rexroth IndraDrive series (HCS, HMS, HMD families), but direct functional replacement requires axis re-parameterization and in many cases mechanical interface adaptation.

DM 15K Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced components within the Bosch Rexroth DM 15K and closely related DIAX servo drive ecosystem. Each entry reflects a distinct hardware or firmware configuration:

DM 15K 1101-D 1070084662-110 02-262202-00 16-262201-00 MPU818-N035.0-10.96: 15 kVA digital servo drive, DIAX03, MPU818 motor pairing, 35 A nominal, firmware rev 10.96.
DM 15K 1101-D 1070084662-110: Base assembly identifier for DM 15K 1101-D control variant, 15 kVA class.
DM 15K 1103-D: DM 15K variant with 1103-D firmware, extended encoder interface support.
DM 15K 1105-D: DM 15K with SERCOS II interface module, fiber-optic ring topology.
DM 15K 1107-D: DM 15K with PROFIBUS-DP fieldbus adapter, cyclic process data exchange.
DM 15K 1109-D: DM 15K with DeviceNet communication module for North American machine tool OEMs.
02-262202-00: Power stage board assembly for DM 15K, IGBT-based inverter section, 15 kVA.
16-262201-00: Control board assembly for DM 15K 1101-D, DSP-based current and speed loop processor.
DM 10K 1101-D: 10 kVA sibling drive, same DIAX03 platform, reduced power class, common control board.
DM 25K 1101-D: 25 kVA uprated variant, same firmware family, heavier power stage.
DM 50K 1101-D: 50 kVA high-power DIAX03 drive for large-frame servo motor applications.
KDV 3.1: DC bus supply unit for DIAX03 multi-axis configurations, common DC link with DM 15K.
KDV 4.1: Higher-capacity DC bus supply, supports up to 6 DM-series axes on shared bus.
BTV04.2: Operator panel / parameterization terminal for DIAX03/04 drives including DM 15K.
DSS02.1: SERCOS interface module, plug-in card for DM 15K SERCOS ring integration.
DAE01.1: Analog command interface module for DM 15K, ±10 V velocity/torque reference input.
MPU818: Matched servo motor for DM 15K 1101-D MPU818-N035.0 parameter set, 35 A continuous.
MKD071B: Rexroth IndraDyn K motor, frequently cross-referenced as functional replacement for MPU818 in retrofit projects.

Sourcing Hard-to-Find & Obsolete DM 15K Parts

The Bosch Rexroth DM 15K series entered end-of-production status as Rexroth transitioned its servo drive portfolio to the IndraDrive platform. Standard Bosch Rexroth distribution channels no longer carry new-manufacture DM 15K units or sub-assemblies. DriveKNMS maintains a dedicated inventory of tested DM 15K drives, control boards (16-262201-00), power boards (02-262202-00), and associated KDV supply units sourced from decommissioned production lines, OEM overstock, and controlled refurbishment programs. All units are cataloged by assembly number and firmware revision to ensure exact-match supply. For plants operating DIAX03-based multi-axis systems where a full IndraDrive migration is not economically viable within the current maintenance cycle, DriveKNMS provides a lifecycle extension service: sourcing, testing, and warehousing of critical spare units against a customer-specific bill of materials. Lead times for DM 15K assemblies are typically 3–10 business days from confirmed stock; emergency same-day dispatch is available for pre-qualified accounts.

Quality Control for the DM 15K Range

DM 15K units received by DriveKNMS undergo a structured incoming inspection and functional test protocol prior to inventory classification. The procedure addresses the specific failure modes documented for DIAX03-generation drives: IGBT module degradation on the 02-262202-00 power board (tested under load at rated current), electrolytic capacitor ESR measurement on the DC bus filter bank, DSP firmware integrity verification on the 16-262201-00 control board, and SERCOS/analog interface signal integrity checks. Each unit is powered up on a dedicated test bench with a matched motor load and exercised through velocity and torque control modes. Fault code history is cleared and re-logged during the test cycle. Units that pass all test stages are classified as Grade A (fully functional, no fault history) or Grade B (functional with documented minor anomalies). Grade classification is disclosed in full on all quotations. Units failing functional test are classified for component-level repair or parts recovery only.