-- DavidRose - 27 Mar 2007

-- DavidRose - 6 Feb 2008

-- DavidRose - 3 Mar 2004

-- DavidRose - 27 Mar 2007

-- DavidRose - 18 Mar 2004

-- DavidRose - 3 Mar 2004

GBT SAFETY LOCKOUT JUMPERS

SERVO SAFETY LOCKOUT JUMPERS

%META:TOPICMOVED{by="EricKnapp" date="1106144764" from="Operate.GBTSafetyLockoutJumpers" to="Operate.ServoSafetyLockoutJumpers"}%

LOSS OF POWER ON THE GBT AND E-STOPS, SOFT-STOPS AND LOCKOUTS

GBT SAFETY LOCKOUT JUMPERS

Background

When stowing on the generator you can stow from the Operations room from the OCT or from the Servo Room from the OCU / MRU / PMU. If the UPS in the Servo room is dead you will have to go to the Servo room. This will be evidenced by the lack of ability to move the antenna. The E-stop, Soft-Stop, and Lockout system is designed so that if power is lost to these circuits, as in a cable break, they will stop the GBT.

Info

The control boxes for these systems are located in the right hand corner, behind the NRAO Computer Racks. On the wall you will see three anodized boxes labeled GBT Lockout, GBT Hard-Stop and GBT Soft-Stop. The lights on them will be red, indicating all three are active.

What to do.

1. Remove the cable connected to each box

2. Each of the three boxes have a jumper plug attached.

3. Plug the jumper plug in to the free end of the cable you just removed from each box.

Note

These safety systems will be jumpered out as long as these plugs remain in the cables. Use caution moving the antenna.

2. Each cable of the three boxes has a jumper plug attached. Plug the jumper plug into the free end of the cable you just removed from each box.

These safety systems will be jumpered out as long as these plugs remain in the cables. Use caution moving the antenna.

-- EricKnapp - 19 Feb 2004

-- DavidRose - 18 Mar 2004 %META:FILEATTACHMENT{name="J-panel.JPG" attr="h" comment="" date="1079625952" path="G:\Procedures\Wiki Image Folder\Safety Lockout Jumpers\J-panel.JPG" size="31974" user="DavidRose" version="1.1"}%

Loss of Power on the GBT and E-Stop, Soft-Stops and Lockouts

Loss of Power on the GBT and E-Stop, Soft-Stops and Lockouts

Background

When stowing on the generator you can stow from the Operations room from the OCT or from the Servo Room from the OCU / MRU / PMU. If the UPS in the Servo room is dead you will have to go to the Servo room. This will be evidenced by the lack of ability to move the antenna. The E-stop, Soft-Stop, and Lockout system is designed so that if power is lost to these circuits, as in a cable break, they will stop the GBT.

Info

The control boxes for these systems are located in the right hand corner, behind the NRAO Computer Racks. On the wall you will see three anodized boxes labeled GBT Lockout, GBT Hard-Stop and GBT Soft-Stop. The lights on them will be red, indicating all three are active.

What to do.

1. Remove the cable connected to each box

2. Each of the three boxes have a jumper plug attached.

3. Plug the jumper plug in to the free end of the cable you just removed from each box.

Note

These safety systems will be jumpered out as long as these plugs remain in the cables. Use caution moving the antenna.

-- EricKnapp - 19 Feb 2004