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Dome Slit


Table 3.7: Dome Slit Specifications
Drawing: RCT001.10
  EOS Drawing SCH-4031-1
Manual: MM 18-14
Drop Leaf Motor: Leeson Model 111950
Slit Motor: 3 HP Leeson Model 130323
Motor Encoder: none
Overall Encoder: none
Shutter Limits: open, closed, midway
Dropleaf: open,closed
Control: Crydom relays D2450
Controller: Allen Bradley PICO
Phase enable relay: Crydom D53TP50D
Homing: none needed
Interface: Relays
Slip Rings: twelve

There is a power inverter that seems to be obsolete.

Vendor: Anacon Systems Model: ED3-42100

The dome shutter is composed of two parts. The main part which goes up and over the top and the "dropleaf". The sequence is discussed in great detail in the MM:18-14 Midway is closer to closed and tells when dropleaf can be activated. There is a maintenance panel shown on SCH-4033-1.

For details of the dome slit operating software see Section 5.1.16

Figure 3.16: The Dome Slit motor
Image SlitMotor

Figure 3.17: The Dome Slit control panel
Image SlitControlPanel

next up previous contents
Next: Filter Wheels Up: Telescope and other Devices Previous: Dome Azimuth   Contents
Louis-Gregory Strolger 2012-01-09