Bosch Rexroth Indramat Power Supply Repair and Replacements

Bosch Rexroth Indramat power supply modules are the heart of many legacy industrial motion control systems. These units convert AC mains into regulated DC power for multiple servo drives, ensuring your motors and controls receive stable energy. However, Indramat (now part of Bosch Rexroth) no longer manufactures these power supplies. When a power supply fails, it can bring production to a halt – making fast, reliable repair or replacement essential. Wake Industrial can help with expert repair services and replacement options to minimize your downtime. Call 1-919-443-0207 to receive a personalized quote from a real human; no menus, no waiting in a queue. If you’d rather receive a quote via email, use the quote form on the right or send an email to sales@wakeindustrial.com. You will receive a response within 15 minutes during business hours.
 

Common Rexroth Indramat Power Supply Types

Bosch Rexroth Indramat produced a range of power supply modules to support their drives and servo systems. Each series has specific features and power ratings. Below is an overview of the most prevalent Indramat power supply families:

• TVD Power Supply Modules – High-voltage supplies for Indramat AC servo drives, available in two versions. Both types can power up to 10 drives; one supports ~7.5 kW continuous DC output and the other ~15 kW continuous. Example: TVD 1.2-08-03 (7.5 kW model) and TVD 1.3-15-03 (15 kW model). These modules include soft-start circuitry to prevent inrush surges and often work in conjunction with NAM line modules for mains connection.
   
• TVM Power Supply Modules – Earlier generation Indramat supplies, capable of powering up to six servo drives with a total continuous output around 4.1 kW. Common in smaller motion systems, a TVM module like TVM 2.4-050-220 can reliably convert three-phase AC to DC for multiple axes.
   
• TVR Power Supply Modules – Similar to TVD, the TVR series is designed for regenerative operation. A single TVR module can support up to 10 main or servo drives with about 12 kW maximum continuous output. (Much like the TVR3.1-W015-03). TVR Power Supply units are often paired with NAM modules and have built-in regeneration capability to feed excess energy from decelerating motors back into the system or a ballast resistor.
   
• HVE Power Supply Units – Indramat HVE series supplies are part of the DIAX04 drive system, providing unregulated DC bus voltage for the drives. They rectify 3-phase AC but do not actively regulate or return energy to the mains. Instead, excess regenerative energy is dissipated as heat via internal bleeder resistors. HVE modules (e.g. HVE02.2-W018N, HVE03.2-W030N, HVE04.2-W075N) are robust units commonly used in CNC machines, printing presses, packaging equipment, and other automation where a simple DC supply suffices. (“02.2” and “04.2” denote series and design versions, while “W018N” indicates a ~18 kW rating, etc.)
   
• HVR Power Supply Units – The HVR series is the advanced counterpart to HVE. HVR power supplies deliver a regulated DC bus voltage to the drives, meaning they maintain a consistent output level even if input voltage fluctuates. Crucially, HVR units also regenerate excess energy: when servomotors brake or slow down, an HVR will feed the energy back into the mains instead of burning it off as heat. They are ideal when stable voltage and energy savings are needed. For example, HVR02.2-W025N (25 kW continuous, ~60 kW peak) and HVR03.2-W045N (45 kW) are common models in the DIAX04 system, often powering multiple DDS or DKR drive controllers. HVR units support dynamic braking and energy recovery, with built-in cooling fans and capacitors for handling surge loads.
   
• KVR Power Supply Modules – The KVR series are high-capacity supply modules (often used in later Indramat systems and EcoDrive configurations). A single KVR can power up to 10 drives with a total continuous output up to ~24 kW. KVR units rectify AC to DC and typically include features like soft-start inrush limiting and regenerative feedback to return power to the grid or to a connected bleed resistor when drives decelerate. For instance, a KVR 1.2-30-3 module provides regulated DC power and can handle regeneration without excessive heat, improving energy efficiency. (KVR modules were often used with digital drive systems in the late Indramat lineup, analogous to the KDV modules which have similar specs.)
   
• NAM Power Line Modules – NAM series modules (Line Former or mains connection units) are auxiliary power modules used in tandem with older Indramat supplies like TVD and TVR. The NAM is essentially the AC line front-end: it contains the three-phase rectifier, input contactor, filter chokes, pre-charge circuitry, and bleed resistors to manage power flow to the DC bus. In other words, NAM modules “condition” the incoming AC and suppress line disturbances or feedback, ensuring the connected TVD/TVR power supply sees a stable input. For example, NAM1.3-15 works with a TVD 1.2-08 or TVR3.1-W015 module to handle 15 kW systems, absorbing regenerated energy via an internal bleeder or feeding it back if an inverter choke is used. NAM modules are critical in Indramat AC servo systems to manage inrush and regeneration, keeping the power supply and drives safe.
   
• VMA Power Modules (VM Series) – The VMA series (a part of the Indramat VM Amplifier system) are compact power supply modules distinct from the above single-piece supplies. A VMA module is a dual-slot power unit that can be plugged into two different power supply bays, often used for controlling electromagnetic brakes and clutches in servo systems. Notably, VMA modules are hot-swappable – they can be replaced without shutting down the entire system, which is a huge advantage for continuous processes. They provide adjustable output current (0–100%) for precise brake/clutch control, and up to two VMA modules can work in parallel to ensure redundancy. For instance, VMA 21KE 001-D or VMA 70CR 001-D modules supply DC power for servo brake coils, and their plug-in design allows quick replacement to keep your line running. In summary, the VMA series is all about reliability and minimal downtime in motion control auxiliary power.

Professional Indramat Power Supply Repair Services

Wake Industrial is a key player in Rexroth power supply repair and refurbishment. Our team of experienced technicians has the expertise to diagnose and fix issues on all the Indramat series mentioned above. Whether it’s a charred circuit board in an HVE02.2-W018N or a fan failure in a TVD 1.3-15-03, we use professional tools and genuine-quality components to restore your unit’s performance. We stand by our work – repairs come with a 1-year warranty on parts and labor, giving you confidence in the reliability of your refurbished unit (comparable to the original factory specs).

Minimize downtime and get your operations back on track with Wake Industrial’s all-in-one service for Indramat power supplies. Whether you have an HVR unit from a CNC machine, an older TVD/TVM in a printing press, or a unique VMA module, we have the resources to repair, refurbish or replace it. Call or request a quote today and let us help you keep your automation system running strong with quality Indramat power supply support. Your machinery is only as reliable as its power source – and with Wake Industrial’s repair expertise and inventory of spares, you can ensure that power keeps flowing reliably to your drives and motors for years to come.

Ready to restore your Indramat power supply to peak performance? Don’t let a power supply fault cripple your production. Contact Wake Industrial for expert Rexroth Indramat power supply repair and replacement solutions. We offer prompt evaluations and free quotes – you can call us at 1-919-443-0207 or email sales@wakeindustrial.com to speak with a representative about your needs. Our team is standing by to provide emergency support, expedited repairs, or overnight shipment of a replacement unit if needed.