Started and ran the purge-air skid, Turbo, QDP80 and newly added scroll pump.  Tested the functionality of the Turbo's Safety Valve with the control cable connected to the scroll pump's relay box - demonstrating that the Safety Valve closes upon the loss of scroll pump motor AC and thus mimicking the "QDP80 Running" 
signal.

Note: The purge-air skid has developed some problems from lack of use over these past few years, namely the radiator fan never came on while running the compressors, the drying tower never cycled and the low pressure alarm never sounded.  These features worked fine when last this unit was run.  Now they don't.  Also, the Turbo spun-up normally even with the locally mounted scroll pump running (new vibration source) but tripped into EMERGENCY OPERATION upon BRAKING and when at ~1/3 NORMAL rpm.  This behavior is seen on other Turbos (XBM for example) and might be an age related issue?  

I am leaving the Turbo energized overnight to ensure that the rotor is completely stopped.  I will de-energize it tomorrow.