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R911270256 (DDC01.1-K150A-DS04-03-FW)

DDC Digital Intelligent Servo Drives

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The R911270256 (DDC01.1-K150A-DS04-03-FW) is a Bosch Rexroth DDC 1 series servo drive designed for demanding automation environments. It delivers a 150 A rated current with a 4 kHz pulse frequency and includes a built-in bleeder resistor for 250 W continuous operation. The unit features an estimated weight of 22 kg, with power loss at maximum output measured at 0.5 kW. It meets IP65 protection requirements per IEC 529 (EN 60 529) and supports digital servo feedback through an integrated SERCOS command module. Cooling is achieved via air-assisted natural convection. The drive includes a mains contactor for power disconnection and is equipped for precise rotor position measurement and wide speed control. Firmware must be ordered separately.

Technical Specifications

Product Line
DDC 1

Peak Current
150 Amps

Pulse Frequency
4 kHz

Weight
22 kg

Bleeder Resistor
250 W

Maximum Power Loss
0.5 kW

Protection Class
IP 65

Feedback
Digital Servo

Command Communication
SERCOS Command Plug-in card

Function Code
04

Function Code Version
03

Heat Dissipation Mechanism
Air-Aided Natural Convection

Installation
Space Saving

Additional Features
Plug-In Modules for Specific Use Cases

Maintenance
Easy to service & mostly maintenance-free

Operating Temperature
5 – 45 degrees C

Peak Environmental Temperature
55 degrees C

Installation Height
1000 Meters Above Sea Level

Common Misspellings

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the DDC01.1-K150A-DS04-03-FW.
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