Hamilton Spectrograph

This section contains descriptions of the electronics version 2 of the Hamilton Spectrograph.

Echelle Grating Tilt, EL-4011

Schematic: schematics/HAM_II_grating_tilt_sh_1.pdf
Page last updated: October 16, 2009

As shown on sheet 1 of the EL-4011 drawing, the grating tilt stage of the Hamilton Spectrograph consists of two power supplies, the controller, a pulse translator board and a network connection for communicating with the control computer. The Galil DMC-4080 motion controller is supplied with both +5 volts and +24 volts from two power supplies. The 5 volt supply is refered to as ISO5V, or isolated 5 volts. It is used for logic external to the controller such as limit switches and, in this case, for the pulse translator board. The pulse translator board receives up or down pulses from the Dick Instruments encoder and translates them into pulse and direction signals. This is necessary because while the Galil controller will accept only quadrature or pulse and direction signals. The board also contains a +15V voltage regulator that is used to power the encoder.


 

Sheet2

Schematic: schematics/HAM_II_grating_tilt_sh_2.pdf

The second page of the Grating Tilt schematic shows the wiring from the stage components to the motion control box. The stepper control box contains the Applied Motion stepper motor driver, the +24V Lambda power supply, and the set of 4 connectors. J1 is main stage cable from the main control box to the stepper control box


 

Sheet3

Schematic: schematics/HAM_II_grating_tilt_sh_3.pdf