Hamilton Iodine Cell and Pick-off (5th Mirror) upgrade

This section contains descriptions of the additions to the spectrograph to facilitate remote observations.

Wiring diagrams, EL-4032

	Sheet 1	Control box wiring - relays
	Sheet 2	Control box wiring - front panel wiring
	Sheet 3	Stage wiring - pick-off mirror and mirror cover
	Sheet 4	Stage wiring - Iodine cell, CAT port, and pressure sensor
	Sheet 5	Stage wiring - Cable pin assignments

Schematic: schematics/HAMIoMirr_wiring.pdf
Page last updated: August 5, 2008

Hamilton Spectrograph Slit Room upgrade

Sheet 1:

Though the slit room upgrade was completed before the Hamilton II upgrade, the documentation is folded into the same web site. The first page shows an overall wiring diagram and the relationship between the internal components. AC power enters the chassis via a Qualtek EMI filter module and is wired directly to the 24V power supply and the Opto-22 AC I/O modules. A Lambda SWS-100-24 power supply is used to supply 24 V at 4.3A. This voltage is supplied to the Galil RIO-47100 and to the Opto-22 relay racks. Not the lack of a 5V, or logic, supply. Because the can RIO use from +5V to +24V for its output, the system uses 24V logic Opto-22 I/O modules and thus doesn't require the second supply. The RIO is represented by the wide rectangle in the diagram. At the top are shown the connections for the power, the network jack, and the RS232 serial connection. Normal connection is via the Mt. Hamilton private network but the DB9 serial connection is provided for local control via a laptop. At each end of the rectangle are shown the connections to the power supply that allow the I/O to use the same supply as the RIO. This means that the I/O opto isolation is not used but that the system only need the one power supply. Notice that the RIO rectangle has labels for four functions: 5th Mirror Motion, 5th Mirror Cover, Iodine Cell Motion, and a spare output. Each function is comprised of two output bits and two or three input bits. The output bits are used to pulse the extend and retract solenoids for that function. In the cases of the mirror motion and the iodine cell motion the three inputs are the end of travel hall-effect sensors on the Bimba cylinders and a hall-effect slotted vane sensor adjusted to indicate the end of travel has been reached. In the case of the mirror cover, the two input are the Bimba sensors. These connections, along with the connections at the side of the rectangle, are all wired to the high-density DB44 I/O connector. Note that at the lower right edge of the rectangle is the input DI10. This is, as shown on sheet 4, the wiring for the air pressure sensor.
Below the RIO is a representation of the output connector J2. This is labeled CONTROL on the back panel. Below and to the right of the RIO is a representation of the input connector J1. This is labeled STATUS on the back panel.