Adaptive Capacity Control Details Screen; Figure 34 - Adaptive Capacity Control Details Screen - York YK Style H Operation Manual

FORM 160.76-O2
issue date: 6/15/2015

ADAPTIVE CAPACITY CONTROL DETAILS SCREEN

FIGURE 34 - ADAPTIVE CAPACITY CONTROL DETAILS SCREEN

OVERVIEW
This screen displays detailed information pertaining to
the Adaptive Capacity Control (ACC). The Microboard
communicates directly with the VSD Logic Board us-
ing MODBUS protocol serial communications. The
Microboard performs the ACC function.
Requires a login access level of SERVICE.
Service Technicians refer to the OptiView
Control Center - Service Instructions
(Form 160.76-M1) for operation instruc-
tions and explanation of all programmable
setpoints and displayed values.
DISPLAY ONLY
% Full Load Amps
Displays the motor current as a percentage of chiller
Full Load Amps as calculated by the microboard from
current values returned from the drive Logic Board.
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Current Limit Setpoint
Displays the current limit setpoint value in use. This
value could come from a 0 to 20mA, 4 to 20mA, 0 to
10VDC or 2 to 10VDC input in Analog Remote mode,
PWM input in Digital Remote mode, E-Link Gateway
interface in ISN Remote mode or locally programmed
value in Local mode.
Motor Run (LED)
Illuminated when the Control Center is commanding
the drive to run. Otherwise, it is extinguished.
VSD Output Frequency
Displays the frequency at which the drive is operating
the motor. This value is returned from the drive Logic
Board.
PRV Position
Displays the present Pre-rotation Vane position as a
value between 0% (closed) and 100% (full open).
Delta P/P
Displays chiller head pressure calculated as (condenser
pressure - evaporator pressure/evaporator pressure).
LD19462
97
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