HCS04.2E-W0790-N-04-NNNN Bosch Rexroth Indramat
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MPN: R911325457
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The Bosch Rexroth Indramat HCS04.2E-W0790-N-04-NNNN is part of the HCS IndraDrive Controllers series and weighs 140 kilograms. This drive controller features an external brake chopper, a brake terminal torque of 24 Nm, and uses an internal air cooling method with an integrated blower. Its dimensions are 950 mm in height, 585 mm in width, and 380 mm in depth.
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Product Description:
The HCS04.2E-W0790-N-04-NNNN is an HCS IndraDrive Controller produced by Bosch Rexroth Indramat for multi-axis automation lines that rely on regenerative DC links. Within the HCS IndraDrive Controllers series, it functions as the power section that converts three-phase mains energy into a regulated DC bus and returns excess braking energy to the plant network through an external brake chopper. By coordinating power exchange between an infeeding or fed supply module and individual servo inverters, the unit helps maintain stable bus voltage so connected motors receive consistent torque commands during acceleration, deceleration, and repeated start-stop cycles. This arrangement is suited to systems where several axes share power through a common DC link.
The controller’s logic and I/O circuits run from a control voltage of 24 V DC. Inside the housing, a DC bus capacitor bank rated at 15.6 mF smooths rectified power and absorbs short-term load peaks during changes in axis demand. Heat generated by switching devices is removed by an internal blower that moves 1,200 m3/h of air, and this airflow requires the cabinet to provide at least 10 dm² of inlet and outlet area. The mains terminals accept a cable cross section of 3 × 350 MCM, and the brake terminal can be tightened to 24 Nm for a secure electrical connection. Lateral space is set by the unit width of 585 mm, while the overall assembled mass is 140 kg. The communication interface is not specified here, so any external network connection must be chosen to suit the drive system in use.
The unit has a depth of 380 mm and a height of 950 mm, which allows vertical mounting behind standard control cabinet doors. During rapid stops, the external resistor can absorb up to 375 kW for ten seconds, and it can continuously dissipate 200 kW when the application requires frequent dynamic braking. A mains-to-motor through-connection rated at 41 Nm supports the power path for high-current wiring. The combination of blower cooling, cabinet airflow openings, and DC bus energy storage helps keep internal components within their intended operating temperature range during demanding motion cycles.
Frequently Asked Questions about HCS04.2E-W0790-N-04-NNNN:
Q: What type of brake chopper does the HCS04.2E-W0790-N-04-NNNN use?
A: The HCS04.2E-W0790-N-04-NNNN drive controller uses an external brake chopper for braking energy management.
Q: What control voltage is needed for the HCS04.2E-W0790-N-04-NNNN?
A: This drive controller requires a control voltage of 24 V DC for operation.
Q: What is the permanent braking power rating of the HCS04.2E-W0790-N-04-NNNN?
A: The HCS04.2E-W0790-N-04-NNNN provides a permanent braking power of 200 kW.
Q: What cooling method and airflow does the HCS04.2E-W0790-N-04-NNNN use?
A: The integrated blower provides internal air cooling with a required air volume of 1,200 m3/h at IP23.
Q: What is the maximum brake power rating for 10 seconds on the HCS04.2E-W0790-N-04-NNNN?
A: The maximum brake power for a 10 second interval is rated at 375 kW.
