Sheet 1

Sheet 1 of the block diagram shows the overall connections and stage assignments for the motion control system. There are two Galil DMC-4080 motion controllers shown near the middle of the page. These controllers are each capable of running 8 axes. The axis assignments are illustrated near the bottom of the sheet. The various stages are identified by the controller number, either 1 or 2, and by the controller axis to which they are wired. As examples, the blue collimator is cabled into controller 1, the controller mounted at the top on the gold electronics chassis, on axis 'F', and the slit stage is cabled into controller 2, axis 'C'. Your will also note that the stage cable connectors are specified at each box representing a stage. Following the previous example, the blue collimator is cabled to J6 and the slit is cabled to J10. These connectors are labeled on both the gold control chassis and the bulkhead connector panel located in the instrument's cladding beneath the blue CCD dewar mount.
At the top of the page, just above the controller blocks, are representations of the power supplies user in the system. The 24V supplies run the Galil controllers and their amplifiers. Note: when working with the controllers, there are three power connectors that need to be attached to each unit: 1.) the 2-pin power connector for the logic, 2 & 3). the 6-pin connectors for the integral amplifiers. The 5V power supply is used by both controllers to supply power for their isolated inputs. (These consist mostly of the limit switches and home signals.) Not shown on the block diagram is the AC wiring for the controllers. That can be seen on the EL-3707 schematic. Communication with the controllers is via a router located on the tub.

Sheet 2

Sheet 2 shows the cabling and interconnections of the CCD detector systems. The instrument has both a red channel and a blue channel, each of which used a UCAM CCD controller. For each beam, the CCD controller is powered by it own power supply and talks to the imaging computer via a single fiber optic cable. The controller is connected to the dewar electronics box by two shielded cables. The controller also provides the shutter signal to the shutter controller which converts the signal into drive signals for the Ilex shutters. Each beam has a camera that feeds the CCD. The cameras each have silicon heaters that warm the camera body to keep the lenses from frosting. These heaters are controlled by Omega model CN351-KF5 temperature controllers. Temperature feed back is provided by a thermocouple.