PowerBox Systems Royal SRS Instruction Manual page 21

The purpose of this menu is to set up the way the door sequencer operates. The following basic
sequences are available:
Mode 1:
Extend undercarriage:
Wheel doors open
Retract undercarriage:
Undercarriage retracts
Mode 2:
Extend undercarriage:
Nosewheel doors open
Main wheel doors open
Retract undercarriage:
Nosewheel retracts
Main wheel doors open
Mode 3:
Extend undercarriage:
Nosewheel doors open
Main wheel doors open
Retract undercarriage:
Nosewheel doors open
Main wheel doors open
Move the cursor to the appropriate mode, and confirm your choice by pressing the SET button. Use
button II to move the cursor to OK, then press the SET button; the following display now appears:
Connect your retract system valve to output A. One of the following will now occur, depending on the
way your valve is programmed:
Valve is triggered, and the undercarriage retracts. Press button II on your SensorSwitch, and hold
it pressed in until the undercarriage extends again.
Valve is not triggered, and the undercarriage re-
mains in the extended state.
Press the SET button to move to the next screen
display:
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Undercarriage extends
Wheel doors close
Nosewheel extends
Main undercarriage extends
Nosewheel doors close
Main undercarriage retracts
Nosewheel extends
Main undercarriage extends
Nosewheel retracts
Main undercarriage retracts
Main wheel doors close
Main wheel doors close
Nosewheel doors close
Main wheel doors close
Nosewheel doors close
Main wheel doors close
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