BOSCH Rexroth 1070068007-102 Replacement for DC102/MK

Product Overview

BOSCH Rexroth 1070068007-102 Replacement for DC102/MK: Seamless Transition & Legacy System Compatibility

The BOSCH Rexroth D-64711 1070068007-102 is a Terminating Module designed for the DC102/MK Series drive and control platform — a proven architecture widely deployed across CNC machining centers, transfer lines, press automation, and multi-axis servo systems. As BOSCH Rexroth progressively phases out legacy DC102/MK components, facilities running these systems face increasing pressure to source verified replacement units or plan a structured migration to current-generation hardware. TOPNLMS stocks tested, ready-to-ship 1070068007-102 modules to support both immediate breakdown recovery and planned retrofit programs.

The DC102/MK platform was engineered for high-precision motion control, and the terminating module plays a critical role in bus integrity. In a typical DC102/MK rack configuration, the terminating module is installed at the end of the SERCOS or internal drive bus to prevent signal reflection and ensure stable communication between the controller, drive amplifiers, and I/O nodes. Removing or incorrectly replacing this component causes bus faults, axis alarms, and in some cases complete system shutdown — making a verified replacement essential for minimizing unplanned downtime.

When sourcing a replacement 1070068007-102, engineers must confirm physical compatibility with the existing rack or control cabinet layout. The DC102/MK system uses a modular backplane architecture where modules are keyed and slot-specific. The terminating module occupies the final slot position and connects via the internal bus connector. No re-wiring of field I/O or power circuits is required for a like-for-like swap, but the replacement unit must match the original bus termination impedance and connector pinout. Our units are sourced from verified supply chains and undergo functional inspection prior to dispatch.

For facilities running a broader DC102/MK installation, the 1070068007-102 is typically found alongside components such as the BOSCH Rexroth 1070068007-101 bus coupler module, 1070073499 power supply module, and 1070066825 digital I/O module — all of which share the same rack infrastructure and internal bus protocol. If your system also includes BOSCH Rexroth servo amplifiers from the HDS or DDS series, or position controllers from the CLC or CSB families, the terminating module’s bus integrity directly affects communication stability across those axes as well.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful DC102/MK system retrofit rarely involves a single module. In practice, engineers replacing the 1070068007-102 terminating module are often simultaneously addressing adjacent components that have reached end-of-life or are showing signs of wear. The BOSCH Rexroth DC102/MK rack may also house a 1070068007-101 bus coupler module, which bridges the internal backplane to external field devices — if the terminating module has failed, the coupler should be inspected as well, since both share the same bus segment.

Power distribution within the DC102/MK cabinet is typically handled by a dedicated 1070073499 power supply module or equivalent DC bus power unit. When performing a planned retrofit, replacing the power supply module alongside the terminating module reduces the risk of a secondary failure shortly after the primary repair. Similarly, the 1070066825 digital I/O module — commonly used for machine interlocks, safety relays, and auxiliary control signals — should be verified for firmware compatibility if the rack firmware is being updated as part of the migration.

For systems where the DC102/MK controller interfaces with BOSCH Rexroth HDS or DDS series servo amplifiers, the SERCOS fiber optic ring must be re-verified after any bus module replacement. A SERCOS programming cable or diagnostic interface (such as the BOSCH Rexroth IDS or IndraWorks engineering tool) is recommended for post-replacement commissioning. If the host controller is a BOSCH Rexroth CLC or CSB motion controller, the axis parameterization files should be backed up before the swap and reloaded after the new terminating module is seated.

In control cabinets where space is constrained, the slim form factor of the 1070068007-102 replacement is an advantage — no panel modifications or DIN rail repositioning are required. For facilities also upgrading their HMI layer, BOSCH Rexroth BTV or VDP operator panels that communicate via the same internal bus remain fully compatible with the replacement terminating module, preserving the existing operator interface without software changes.

Signal isolation requirements between the DC102/MK rack and external field wiring should also be reviewed during the retrofit. If analog input modules or thermocouple interfaces are present in the same cabinet, signal isolators from the BOSCH Rexroth or equivalent third-party range may be needed to maintain EMC compliance after the module swap.

Retrofit Guidance FAQ

Q: Can I replace the 1070068007-102 without re-programming the controller?
A: Yes. The terminating module is a passive bus termination component and does not store program data. A direct swap requires no controller re-programming. Simply power down the rack, remove the old module, insert the replacement in the same end slot, and restore power. The controller will resume normal operation without any parameter changes.

Q: Will the replacement module work with my existing DC102/MK rack firmware version?
A: The 1070068007-102 terminating module is firmware-independent — it does not contain programmable firmware. It is compatible with all known DC102/MK rack revisions. No firmware update is required on the host controller or adjacent modules.

Q: Are there any wiring changes required at the field terminal level?
A: No field wiring changes are required. The terminating module connects exclusively via the internal backplane bus connector. All field I/O wiring on adjacent modules remains undisturbed during the replacement.

Q: What communication protocols does the DC102/MK bus support, and is the replacement compatible?
A: The DC102/MK internal bus uses BOSCH Rexroth’s proprietary backplane protocol, with SERCOS interface support for drive communication. The replacement 1070068007-102 is fully compatible with both the internal bus and SERCOS ring topology used in standard DC102/MK installations.

Q: How do I verify the replacement module is functioning correctly after installation?
A: After installation, power up the rack and check the controller’s diagnostic display or IndraWorks engineering software for bus status. A correctly installed terminating module will clear any prior bus fault alarms. Verify that all axes initialize normally and that no SERCOS phase errors are reported.

Q: What if my cabinet has physical space constraints — will the replacement fit?
A: The replacement unit matches the original DC102/MK module form factor exactly. No cabinet modifications, DIN rail changes, or panel cutouts are required. The module slots directly into the existing rack end position.

Warranty Assurance

Every BOSCH Rexroth D-64711 1070068007-102 Terminating Module shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each unit undergoes a functional inspection to verify bus connector integrity, module housing condition, and electrical continuity. Units that do not pass inspection are not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our after-sales response target is 24 hours for initial acknowledgment and 72 hours for resolution proposal. Warranty coverage applies to manufacturing defects and functional failures under normal operating conditions consistent with BOSCH Rexroth DC102/MK system specifications.

For urgent breakdown situations, we offer expedited shipping from our Xiamen warehouse to minimize system downtime. Customers in mainland China, Southeast Asia, Europe, and North America have received units within 3–7 business days under standard international shipping terms. Express options are available on request.

Procurement teams can request a proforma invoice, packing list, and certificate of conformity for each order. We support T/T bank transfer, PayPal, and trade assurance payment terms. For repeat orders or MRO contracts, volume pricing and reserved stock arrangements are available — contact our team to discuss your requirements.