ishell INSTRUMENT CONTROLLER OVERVIEW

Transcription

1 ishell INSTRUMENT CONTROLLER OVERVIEW Tony Denault Software Programmer Eric Warmiber Electronic Engineer 3/28/2013 1

2 What is the ishell Instrument Controller? ishell has 3 control systems. Spectrograph Camera System Computer, Controller, and electronics used to readout the H2RG Array. Guider Camera System Computer, Controller, and electronic used to readout the Aladdin Array. Instrument Controller System Computer, controllers, and electronics to do: Motor control Temperature control and monitoring A/C power control. Other hardware control. 3/28/2013 2

3 What is controlled by the ishell Instrument Controller? On page 4 of the Instrument Controller Overview, a table lists the items to be controller. Below is summary of these items. 12 Mechanisms using stepper motors. 3 are warm located in the calbox, and 9 are cold located inside the dewar. Sensing for ~23 position sensors or switches. A combination of analog and digital channels. 5 Temperature Control loop: H2RG, Aladdin, Grating #1, Grating #2, and the Gas Cell. 10 Channels of temperature monitoring. Power control for 3 calibration lamps. 3/28/2013 3

4 The ishell Instrument Controller Our plan for the ishell Instrument Controller is to copy of the SpeX Instrument Controller. SpeX is currently being upgraded. Its instrument controller is being replaced. SpeX has: 6 stepper motor (warm). 2 servo motors (warm) 4 A/C power outlets (Lamps) 2 temperature controllers (H2RG, Aladdin). 10 channels of temperature monitoring. 8 channels of analog input. The SpeX Instrument controller is being built and written so that it can be replicated for ishell. This provides ishell with a proven design that can be implemented very quickly. 3/28/2013 4

5 H2RG ARC Controller TTL to fiber Fiber to TTL 3 Warm Motors Gas Cell (in/out) CalMirror (in/out) Window cover (in/out) Temperature Control H2RG Array, Alladin Array, Immersion Grating #1, Immersion Grating #2, Gas Cell + 8 Dewar Temps Sensors Calibration Lamps Lamp1 Lamp2 Lamp3 The ishell Control System Block Diagram ishell Data Acquisition and Instrument Control Block Diagram ARC PCIe Fiber interface PC Parallel Port (timestamps shutter) 9 Cold Motors Rotator Wheel Slit Wheel Slit Decker Guider Filter Wheel Order Sorter Wheel Grating Selector (in/out) XD Wheel XD tilt (slider) H2RG Focus (slider) Aladdin ARC Controller TTL to fiber Fiber to TTL Analog and Digital IO Fibers from TCS Rm to CASS ARC PCIe Fiber interface PC parallel port (timestamps shutter) Utility Box Comparator board Temperature Controllers 2 Lakeshore 335 (Arrays) 1 Lakeshore 218 (monitor) 2 Grating Controllers TBD Notes: Stepper motor drivers (phytron or others) AC power cntl WTI NPS-8 Ethernet IO unit RIO bit ishell Instrument In cool racks Serial Port Server Digiport TS 16 GPIB to Ethernet Stepper Motor Controller. DMC each, 8 axis controllers Controller power supplies (2 each Agilent N6700B ) CASS LAN Computer Room ishell Control System diagram on page 6. Color coding: Orange = ishell Purple = H2RG and Aladdin Camera Systems Blue = Instrument Controller Instrument Controller PC in the computer room. Hardware controllers are located in the coolrack electronic box at the telescope. All cool rack controllers are access using Ethernet. All hardware has be used at the or is being used in the SpeX upgrade. Spectrograph PC in computer room Guider PC in computer room Instrument Controlerl Computer Instrument Control System Array Controller Infrastructure LAN KVM LAN KVM LAN KVM 3/28/2013 5

6 ishell Instrument Controller Hardware 1 Galil DMC-4183 Motor Controller 8 axis motor controller 8 analog inputs 16 digital input 16 digital outputs Ethernet interface. IMS stepper motor Warm phytron motor IM483-24PI micro stepping motor driver. IM483 driver DMC /28/2013 6

7 ishell Instrument Controller Hardware 2 Hall Effect Sensor Conditioning Hardware The current SpeX comparator board is shown. In-house design. We plan to use an updated version of the this board for the SpeX upgrade, and ishell. For Additional Analog or Digital IO Galil RIO bits 8 analog inputs 8 analog outputs 16 digital inputs 16 digital outputs Ethernet port Used by the TCS. 3/28/2013 7

8 ishell Instrument Controller Hardware 3 Lake Shore 335 Temperature Controller Newer version of the 330 (SpeX), 332 (NSFCAM) used by the. Ethernet interface provide by a Prologix GPIB-Ethernet device. Lake Shore218 Temperature monitor Newer version of the 208 used by SpeX. Interface is RS-232 Digi PortServer RS-232 to Ethernet uses various model of the PortServer.. 3/28/2013 8

9 ishell Instrument Controller Hardware 4 Instrument Controller Computers Standard PC Linux OS Being used to develop the SpeX Instrument Controller Software. WTI NPS-8 8 outlets of A/C power control over Ethernet. To be used for Calibration Lamps. 3/28/2013 9