Fire Detection Unit

MASTER CONTROLLER

The Master Controller developed by us will be suitable for WAP5, WAP7 & WAG9 classes of locomotives and its variants. The master controller has essentially three functional components, viz. (i) Angle Transmitter, (ii) CAM operated switches to sense TE (or BE), ZERO position, 1/3 position, 2/3 position & (iii) Forward/Reverse selector switch, which also has CAM operated switches and mechanically interlocked with the throttle handle.

The heart of the master controller is the angle transmitter, which is expected to provide a current output (4-20mA) proportional to the angle position of the throttle handle. We have developed an angle encoder using contactless rotary position sensor over 360°. It has a huge advantage compared to the technology currently being used, as having no frictional elements or complicated mechanical movement assemblies.

Key Features

Master Controller
  • Generates tractive and braking reference for VCU.
  • Employs contactless incremental angle encoder for angle detection.
  • 4-20mA output signal (can also provide any other type like voltage, frequency, PWM etc).
  • Integrated Forward/Reverse switch and CAM switches for sensing TE, BE, 1/3 TE/BE and 2/3 TE/BE regions.
  • Sealed CAM switches for longevity.
  • IEC-60571 compliant.