dc motors

The PLXD is used for controlling external 3 phase thyristor stacks for DC motors, and possesses all the functionality of the PL/X range. It is in the same package as the PL/X 5 - 50 models. The PLXD provides gate drive pulses for driving user supplied pulse transformers with primary pulse current up to 1.5 Amp. There are terminals to accept an externally generated isolated armature current signal, field signal, thermal heatsink sensor switch, and high voltage armature voltage feedback. The following stack configurations can be driven by the PLXD: 1) 6 pulse 2 Quadrant bridge (6 thyristors), or 2 bridges in parallel (12 thyristors). 2) 6 pulse 4 Quadrant regen anti-parallel bridge (12 thyristors). Extra stacks can be used in parallel within the gate drive capability.