DKR04.1-W400E-BE73-01-FW
DKR Drive Controllers
The Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW is a robust drive controller in the DKR Drive Controllers series. It features an external bleeder with brake chopper and rigid DC bus, a SERCOS interface command protocol and air cooling via built-in blower. It supports digital servo/resolver feedback and delivers a rated current of 400 A.
Technical Specifications
Bleeder Configuration
External bleeder/ With brake chopper, rigid DC bus
Command Interface
SERCOS interface
Cooling Method
Air (built-in blower)
Design Version
1
Line Series
04
Motor Feedback
Digital servo and resolver feedback
Product Series
DKR
Function Numeric Version
01
Rated Current (A)
400
Frequently Asked Questions
What current-limiting characteristics does the Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW motor unit maintain at 400A rated input?
The unit incorporates rigid DC bus stabilization and protective chopper logic, preventing transient overcurrent faults, thus preserving operational continuity at 400A rated input conditions.
What insulation monitoring does Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW motor incorporate for high-frequency inverter switching?
Insulation monitoring ensures dielectric integrity by evaluating leakage impedance, safeguarding motor windings during rapid PWM inverter switching within 50–60Hz base frequency.
What control-loop bandwidths are achievable by Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW motor drive?
The closed-loop bandwidth is tailored for high-frequency torque response, balancing resolver latency and PWM switching, ensuring smooth servo operation.
How does Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW motor system mitigate bus voltage spikes during braking?
It activates the chopper switch, diverting surge voltages into external bleeder resistors, thereby stabilizing the DC link and protecting inverter semiconductors.
Does Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW motor support dual-feedback redundancy?
Yes, resolver and digital encoder coexist as redundant feedbacks, ensuring uninterrupted closed-loop operation if one channel experiences data corruption.
Common Misspellings
DKR041W400EBE7301FW
DKR04 1 W400E BE73 01 FW
dkr04.1-w400e-be73-01-fw
DKR4.1-W400E-BE73-01-FW
Internal Product Review
The Bosch Rexroth Indramat DKR04.1-W400E-BE73-01-FW from the DKR series is a servo drive. It uses SERCOS command interface and air-cooling with a built-in blower. This model finds use in CNC machining centers, robotics automation and PLC domains ensuring controlled torque delivery with consistent reliability.
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