Pbj industrial electronics manufactures ac variable frequency/dc thyristorised synchronous multi station digital variable speed drive system with pc workstation based re-mote control system. These digital ac/dc drives are available with salient features like microprocessor based control circuits; logical push-button programming; advanced auto-diagnostics; expandable software; rs232/485 serial interface; single and four quadrant models for dc; taper current limit; armature voltage, tacho or encoder feedback for dc; field loss protection for dc; electronic motor-over-load protection; feedback loss protection for dc; phase loss protection; and 150% overload capacity for 30 seconds.
