Application Scenarios

A packaging machinery manufacturer was maintaining a fleet of labeling machines built in the late 1990s. The original DC drives had become unreliable, with speed regulation drifting during long production runs. The maintenance team needed a drop-in replacement that would fit the existing panel space and accept the same 240V single-phase supply. They selected the 1361-NO61-2-5 because its open-chassis design matched the original mounting footprint, and its three selectable regulation modes—armature voltage, speed, and torque/current—allowed them to match the original drive‘s tuning without rewiring the tachometer feedback circuit. The swap was completed during a weekend shutdown, and the labeling machines returned to production with stable speed control and no further drift complaints.

In a small machine shop, a lathe with a 3 HP DC spindle motor was experiencing erratic speed under load. The existing drive had failed, and the OEM replacement was no longer available. The shop electrician installed a 1361-NO61-2-5 with the speed feedback mode enabled, using the existing tachometer generator. The drive’s 150% current limit for one minute handled the high starting torque of the spindle without tripping, and the armature voltage feedback provided adequate regulation for roughing operations. The repair cost was a fraction of replacing the motor with an AC system.

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