JOHNSON CONTROLS
70
FORM 160.67-O1
ISSUE DATE: 4/1/2015
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
AUTO/MANUAL SCREEN
LD09266
FIGURE 25 - AUTO/MANUAL SCREEN
NOTE: OptiView
™
Control Center Screens shown may NOT represent the exact screens according to the software version utilized.
OVERVIEW
This screen is only accessible in the Service or higher
access level and allows the operator to manually con-
trol any of the capacity control devices. Each device
has data fields beneath the device name that display
various process variables and control signals affected
by manually controlling the output signal to the device.
The programmable Anti-Surge limits are entered on
this screen. To view the results of a setpoint change, the
applicable Screen name is referenced. Service Techni-
cians refer to YORK Service Manual 160.67-M3 for
additional information.
This screen would normally only be used by a quali-
fied YORK Service Technician to determine at initial
commissioning or subsequent site visits to test the fi-
nal control devices and determine final tuning param-
eters. It is also used to perform the Turbine Mechanical
Overspeed Test.
DISPLAY ONLY
Auto
Displays the present automatic control signal entering
the Auto/Manual control logic. This signal will vary
independently of the Manual signal when the device is
placed in the Manual mode for all devices except the
Speed Setpoint which will track its’ Manual signal.
Manual
Displays the present manually controlled signal being
sent to the device. When the device is switched to
Manual, the manual control signal is set to equal
the present automatic signal to provide a bump-less
transfer. The Increase/Decrease/Set keys that appear
are then used to manipulate the manual control signal.
Delta
Displays the present differential between the Auto and
Manual signals.
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