Product Description:

The 502-03512-03 is a power interface card produced by Kollmorgen for the PIC900 Drives series. Installed inside the drive rack, the card converts line power and distributes multiple low-voltage rails while maintaining a battery-backed clock for the controller CPU. Its role is to keep motion programs, position data, and diagnostic logs valid during brownouts or cabinet service, which helps the control system resume operation with consistent timing after power returns. The slim 61 mm profile also helps the board fit dense enclosures where adjacent modules share limited rack space.

The card draws an AC line current of 2 A through a 3-terminal plug connector and converts that energy into a combined output budget of 50 W. Three regulated rails are provided: a logic supply of 4.0 A at +5 V for microprocessors, an analog reference of 2.0 A at +15 V for signal conditioning, and a return rail of 0.5 A at -15 V for differential circuits. Internal linear regulators and filtering limit ripple at the control electronics, while optical isolation helps separate low-level circuitry from mains disturbances. The assembly mounts inside a 61 × 305 × 213 mm card cage without additional heat sinks, which supports compact rack layouts and straightforward internal cable routing.

To preserve the real-time clock and volatile memory, the board carries a 3 V lithium backup built from 2/3 A cells with a capacity of 1.2 Ah. During normal operation, the backup circuit places only 2 µA of load on the battery, which supports long data retention between scheduled service intervals. Timekeeping accuracy is held within ±1 s/day, helping event records and startup sequencing remain orderly after power restoration. Mechanical resilience is verified for shocks up to 15 g/11 ms, so the unit can withstand panel transport and routine production line impacts.