Project: DEIMOS
Stage: Guide TV shutter
ID #: KDTV-003A
Engineer: D. Cowley

Mechanical Description of Stage:

Electronic Description of Stage: Controller is integral with PXL TV control box.  #4IES214 as of September 1999.  Coil resistance is 8.5 ohms.  24 volts to open and 3 volts to hold.  We add a reed switch and small magnet on one of the internal blades for sensing open/closed.  This is undocumented.  The factory limit switch for this function has a spring which is so strong it prevents the shutter from opening on cold nights.  Old part number: #04IES004 - turns out to be 12 volt shutter.

Required setting accuracy :

1. Speed, temperature, accuracies, electrical power, pressurized air, lubricant, coolant, N2 purge, ...
2. Primary (inner) and secondary (outer) limits. These can be magnetic, optical, or physical contact

1. Uphill defined as motor (or driven end of shaft) in lowest position

• Gear reduction function:

• Backlash:
• Forward:
• Reverse:

• Repeatability:
• Forward:
• Reverse:
• Fiducial:
• Type:
• Location:
• Encoder:
• On motor:
• On stage:
• Air Cylinders:
• Air Solenoids:
• Air pressure:

NOTES:

Electronic Drawing(s) #EL-1183

Sign conventions are such that a positive motion of the motor turns the motor in a CW direction as viewed from the drive shaft looking back into the motor, and will drive the stage towards the forward limit.