Product Description:

The HCS04.2E-W0790 is a drive controller manufactured by Bosch Rexroth Indramat and assigned to the HCS IndraDrive Controllers series. In an automation line, it works as the central energy interface, forming the DC bus that supplies several inverters while coordinating with an external brake chopper for controlled power dissipation across a multi-axis cabinet. By linking incoming line power to servo axes, it supports large servo presses, test stands, and material-handling equipment that demand precise regulation of very high electrical power during dynamic operation.

The controller can deliver a continuous output current of 586 A, a level that shapes the thermal design of downstream motors and cabling. Its rated power handling reaches 315 kW, so a single cabinet section can energize multiple high-torque axes without parallel supplies. On the input side, it draws 527 A of line current during steady operation, a figure used when sizing upstream circuit breakers and bus bars. A laminated bus capacitor bank totaling 15.6 mF stabilizes the internal DC link against load transients, while the drive logic and blower fans are energized from a separate 24 V DC control circuit that remains active during main power shutdowns for diagnostics, control supervision, and safe-stop routines.

Short-term overload margins let the unit absorb peak mechanical demands, and it can source 791 A for 2 seconds and 703 A for 60 seconds before returning to continuous limits. When kinetic energy must be removed, the external chopper and resistor bank can convert up to 375 kW for ten seconds, while the permanent braking channel handles 200 kW continuously to avoid DC overvoltage during cyclic deceleration. Heat produced under these operating conditions is removed by an internal blower that forces air through the heat sink. Mechanical dimensions of 950 mm in height, 585 mm in width, and 380 mm in depth guide enclosure layout and airflow spacing so intake and exhaust paths are not restricted during operation.