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DDC01.1-K050B-RL45-01-FW Bosch Rexroth Indramat

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The DDC01.1-K050B-RL45-01-FW is a Bosch Rexroth Indramat digital intelligent servo drive with a 50 A rated current and 3 x AC 230 V supply voltage. Single-axis positioning and resolver feedback support accurate motion control and dependable integration in servo applications. IP65 protection and natural convection cooling make the unit an excellent choice for demanding enclosed-machine service.

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Product Description:

The DDC01.1-K050B-RL45-01-FW is a digital intelligent servo drive manufactured by Bosch Rexroth Indramat and supplied within the DDC Digital Intelligent Servo Drives series. Designed to operate a single servo axis, the unit converts three-phase mains power into regulated motor power while executing position loops for automated machinery. Integrated signal processing and resolver feedback allow the drive to issue precise torque and speed commands, making it suitable for material-handling systems, packaging lines, and other industrial motion sequences that depend on closed-loop accuracy.

The drive draws a three-phase input of 230 V AC and can deliver up to 50 A of continuous output current to the motor windings. Internal logic and I/O circuits are supplied from a separate 24 V DC control rail. A 100 ms power-on pulse helps prevent an undervoltage condition by allowing the capacitors to charge before the power stages are enabled. Overvoltage protection trips at 475 V, disconnecting the DC link if regenerative energy exceeds the permitted limit. Positioning tasks are executed by the version 01 single-axis command module, while resolver feedback supplies angular data to the digital regulator. The product is version 1 and uses natural air convection for cooling. A cabinet depth of 140 mm must be reserved for power and feedback cabling.

The mechanical envelope is 775 mm tall when the optional blower is mounted and 635 mm tall without it. Both configurations retain the enclosure’s IP65 protection, allowing installation outside a control cabinet when all connections are properly secured. A spring-applied holding brake is released by the 24-volt rail and engages at a controlled speed of 10 rpm. The brake reaches full clamping torque within 0.4 s, helping restrain the connected axis after engagement. Reduced acoustic emission at the motor’s rated operating point helps limit workplace noise. The air-cooled housing manages heat during continuous duty, including operation with fast, successive moves commanded by the single-axis positioning module.

Brake Apply Speed
10 min-1
Brake Time Limit
0.4 s
Cable Space
140 mm
Command Module
Single Axis Positioning
Control Voltage
24 V DC
Cooling Type
Air, Natural Convection
Function Code Version
01
Height With Blower
775 mm
Height Without Blower
635 mm
Holding Brake Release
24 V DC
Motor Feedback
Resolver Feedback
Noise Emission at Motor Rating
Reduced (50A)
Overvoltage Trip
475 V
Power-on Pulse
100 ms
Product Group
Digital Intelligent Servo Drive
Protection Category
IP65
Rated Current
50 A
Series
1
Supply Voltage
3 x AC 230 V
Version
1

Frequently Asked Questions about DDC01.1-K050B-RL45-01-FW:

Q: What is the rated current for the DDC01.1-K050B-RL45-01-FW servo drive?

A: The DDC01.1-K050B-RL45-01-FW servo drive operates with a rated current of 50 A.

Q: What type of motor feedback does the DDC01.1-K050B-RL45-01-FW use?

A: This drive utilizes resolver feedback for motor position sensing.

Q: What protection category does the DDC01.1-K050B-RL45-01-FW have?

A: The DDC01.1-K050B-RL45-01-FW is protected to IP65 standards, offering a high degree of protection against dust and water.

Q: What supply voltage does the DDC01.1-K050B-RL45-01-FW require?

A: It's designed for a supply voltage of 3 x AC 230 V, which is standard in many industrial settings.

Q: How is the DDC01.1-K050B-RL45-01-FW cooled?

A: This model features air cooling via natural convection, operating without external blowers.

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