TMA-IS Over Speed Limit Adjustment

Requested by:

AURA

Doc. Code

#{documentCode}

Editor:

A. Izpizua

Approved by:

J. García

Index

Introduction

This document shows how to change the maximum allowed speed for azimuth and elevation in the TMA IS.

Symbols used in the Document

🛑

DANGER

DANGER SYMBOLS ARE USED TO ATTRACT ATTENTION TO ESSENTIAL OR CRITICAL INFORMATION. WARNINGS INCLUDE INFORMATION ON CONDITIONS, PRACTICES OR PROCEDURES TO BE FOLLOWED TO AVOID:

  • PERSONAL INJURIES.

  • LOSS OF LIFE.
⚠️

WARNING

Warning notices are used to describe the conditions, practices or procedures that should be followed to avoid:

  • Damaging the equipment.

  • Destroying the equipment.

  • Endangering health in the long term.
ℹ️

NOTE

Notes are used to highlight information of particular importance or relative interest that:

  • Should be remembered.

  • Help with correct decision-making.

  • Is otherwise difficult to find.

General safety conditions

Stop signal

  • 🛑 PERSONNEL THAT PROCEED WITH THIS INSTRUCTIONS MUST BE QUALIFIED OR INSTRUCTED PERSONNEL WHO HAVE BEEN GIVEN SPECIFIC TRAINING IN THE USE OF THE PAS4000 SOFTWARE AND THE PROCEDURES DESCRIBED IN THIS DOCUMENT, INCLUDING ITS HAZARDS, THE SAFETY MEASURES TO BE TAKEN AND OBSERVED, AS WELL AS THE PERSONAL PROTECTIVE EQUIPMENT TO BE USED AND THE ACTIONS THAT MUST NOT BE CARRIED OUT.

  • 🛑 PERSONNEL USING THIS SOFTWARE MUST BE AWARE OF EACH AND EVERY RISK ASSOCIATED WITH EACH ACTION.

  • 🛑 BEFORE PERFORMING ANY ACTION TAKE THE NECESSARY SAFETY ACTIONS TO MAINTAIN PEOPLE, INSTRUMENTS AND TELESCOPE SAFE

Changing the safety speed limits

To change the safety speed limits proceed with steps.

  • Find the PAS4000 program in windows

    Find PAS400

  • Activate the TMA IS project

    Activate Project

  • Enter credentials.

    Log In

  • Open the “Variable Lists” item

    Open Variable Lists

  • The desired variable list can be opened clicking on it (red) and to start monitorin data the play button must be pressed (blue).

    • To manage azimuth open the AZ_BrakesInividually variable list

    • To manage elevation open the EL_BrakesInividually variable list

      Open Desired Variables

  • Find the variable to change MAXSPEED. 🛑 THE VALUE INSERTED HERE COULD BE DANGEROUS FOR THE TELESCOPE OR FOR PEOPLE.

  • Double click in the “Force/control value” column. Then change the value to the desired one in the red box, and click “Control Now” button (blue). Check the valid values in the table shown in Speed Limit Valid Values section.

    Control Variable

    • For azimuth each unit is equivalent to 0.36deg/s. This is a value of 10 is equal to a maximum velocity in azimuth of 3.6deg/s.

    • For elevation each unit is equivalent to 1.44 deg/s. This is value of 2 is equal to a maximum velocity in elevation of 2.88 deg/s.

  • If the values are valid, the values shown in the “Current value” and “Force/control value” columns are the same. Otherwise the value will be limited to the fixed limit

    Valid Values

Speed Limit Valid Values

The values must be inside a range. This range was defined by AURA, but they do not ensure that the values inside this limits are totally safe for the camera. Please check the allowed maximum values in each situation

Axis

Velocity per unit

Allowed Max. value

Equivalent Maximum Velocity

Allowed Min. value

Equivalent Minimum Velocity

Azimuth

0.36 deg/s

28

10.08 deg/s

2

0.72 deg/s

Elevation

1.44 deg/s

4

5.76 deg/s

1

1.44 deg/s