Product Description:

The ACS4825-1000C is a high-current AC drive module produced by Kollmorgen within the AC SuperDrive Motion Units series. It converts a regulated DC supply into a controlled three-phase output that powers servomotors used in presses, gantry axes, and packaging machines. The device integrates with motion controllers over a CAN fieldbus to deliver deterministic torque and velocity profiles for industrial automation.

With a nominal input of 48 VDC, the drive can supply up to 400 Arms for one hour, allowing sustained high-torque cycles without thermal derating. During the same duty period, it delivers 22.0 kVA of apparent power to the motor terminals through an internal inverter that switches at 8 kHz to minimize current ripple and acoustic noise. The enclosure carries an IP54 rating, so dust ingress is limited and splashing water is tolerated when the unit is cabinet-mounted. Thermal safeguards begin to reduce output when the heat sink reaches 85 °C and shut the stage down at 125 °C. The motor temperature model applies corresponding rollback and cutoff thresholds of 145 °C and 165 °C, while a 50 ms CAN watchdog halts operation if fieldbus commands stop.

For overload events lasting two minutes, the inverter raises its current ceiling to 1000 Arms, and the corresponding apparent power climbs to 55.1 kVA so short acceleration bursts can be handled without missing position commands. Heat generated under these peaks exits through a flat heat sink with a thermal resistance of 0.055 °C/W, permitting forced-air cooling to keep silicon junctions below critical limits. If a fault is detected, drive output is inhibited for 150 ms, giving downstream contactors time to open before re-enabling can occur. With a mass of only 9.7 kg, the module supports panel mounting while meeting the stated vibration limits for mobile machinery.