York YST Operation Manual page 96

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
An immediate shutdown is initiated if the Turbine Trip
Valve Air Dump Solenoid is energized and the Turbine
Trip Valve Limit Switch contact is open after this de-
lay.
TdSp16 – Slow roll underspeed Timeout
Screen: Steam System
Range: 5-200 Sec
An immediate shutdown is initiated if the Turbine Ro-
tating (Speed Switch) contact is closed but the SSP1-
Slow Roll Setpoint speed shown on the Speed Setpoints
Screen has not been achieved within this delay.
TdSp18 – Compressor vibration Trip Timeout
Screen: Compressor
Range: 2-300 Sec
A shutdown is initiated if either of the two Compressor
Vibration Transmitter input signals remain continuous-
ly above the CVSP2-Compressor Vibration Shutdown
shown on the Alarm / Shutdown Setpoints Screen for
this delay.
96
Default: 100 Sec
Default: 5 Sec
Set Shutdowns
Access Level Required: SERVICE
This key enables the field selection cursor. The opera-
tor may then toggle between the programmable data
fields using the Cursor Arrow keys.
navigaTion
home
Access Level Required: VIEW
Causes an instant return to the Home Screen.
Setpoints
Access Level Required: VIEW
Causes an instant return to the Setpoints Screen.
alarm / Shutdown Setpoints
Access Level Required: VIEW
Causes an instant return Alarm / Shutdown Setpoints
Screen.
FORM 160.67-O1
ISSUE DATE: 4/1/2015
JOHNSON CONTROLS