York YST Operation Manual page 38

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
pulldown Time remaining
(variable Speed oil pump only)
Displays the time remaining until the user-programmed
Oil Pressure setpoint is used.
variable Speed oil pump Control Mode
(variable Speed oil pump only)
Indicates whether the variable speed oil pump speed is
under manual or automatic control.
oil pump drive Command frequency
(variable Speed oil pump only)
Displays the actual Speed Command being sent to the
VSOP. This value could be the result of automatic con-
trol based on the Oil Pressure setpoint, or the result of
a manual speed command.
Manual oil pump operation Time left
Displays the time remaining in the 10-minute manual
oil pump operation described below.
prograMMable
Standby lube (enabled / disabled)
Access Level Required: SERVICE
Allows the user to enable or disable the standby lube
operation. When enabled, this function causes the Oil
Pump to operate for a period of two (2) minutes at 24-
hour intervals from when the oil pump was last run for
at least 2 minutes.
pressure Setpoint (variable Speed oil pump
only)
Access Level Required: SERVICE
The Variable Speed Oil Pump (VSOP) operates to con-
trol to a defined Oil Pressure value. This key allows the
user to define the setpoint for the VSOP control.
Control period (variable Speed oil pump
only)
Access Level Required: SERVICE
By default, the automatic VSOP control algorithm op-
erates every 300ms. This key allows the user to specify
the control period in multiples of 300ms.
38
variable Speed oil pump Speed Control:
Set
Access Level Required: SERVICE
This key allows the user to specify a fixed manual
speed at which the VSOP will run.
Raise
Access Level Required: SERVICE
This key puts the VSOP control into Manual Mode and
increments the present Speed Command by 0.5 Hz.
Lower
Access Level Required: SERVICE
This key puts the VSOP control into Manual Mode and
decrements the present Speed Command by 0.5 Hz.
Auto
Access Level Required: SERVICE
This key returns the VSOP to Automatic Mode where
control is based on the Oil Pressure setpoint.
Manual pump (disabled/enabled)
Access Level Required: OPERATOR
This key puts the Oil Pump control in Manual Mode and
forces it to RUN. The Oil Pump is limited to running
for a maximum of ten (10) minutes. If a longer running
time is desired, this key must be pressed again. Manual
Oil Pump control is disabled (and the key hidden) dur-
ing system prelube, system run, proximity probe cali-
bration, seal lubrication, and system coastdown.
navigaTion
home
Access Level Required: VIEW
Causes an instant return to the Home Screen.
FORM 160.67-O1
ISSUE DATE: 4/1/2015
JOHNSON CONTROLS