Figure 16 - Motor Details Screen - York YZ MODEL A Operation And Maintenance Manual

Magnetic bearing centrifugal chiller with optiview control center
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SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION

FIGURE 16 - MOTOR DETAILS SCREEN

This screen displays information pertinent to the Motor
Temperature Monitoring feature. The feature consists
of motor winding temperature and motor housing tem-
DISPLAY ONLY FIELDS
FIELD/LED NAME
Motor Run (LED)
Motor % Full Load Amps
VSD Output Frequency
VGD Position
Motor Temperatures
Average Winding Temperature
Motor Housing Temperature
Motor Housing Temperature Setpoint
50
perature. Also, individual winding temperature sensors
can be disabled on this screen
DISPLAY ONLY FIELDS
Illuminates when the OptiView control center is commanding the motor to run.
Displays the input current as a percentage of chiller full load amps.
Displays the frequency at which the VSD is operating the motor. This value is
returned from the VSD Logic Board.
Displays the present variable geometry diffuser position as a value between 0%
(closed) and 100% (full open).
Displays the enabled motor winding temperatures for phase A, B and C. Individ-
ual temperatures can be disabled using the TEMPERATURE DISABLE Setpoint.
The software prevents more than 2 of the 3 sensors at either end of the motor to
be disabled. When an individual temperature is disabled, the temperature data
box does not appear. Any input that registers as open will display the minimum
temperature.
This value is calculated as the average of all enabled and valid motor winding
temperatures. Any winding temperature that registers as open, out of range or
disabled is not used in the calculation. A maximum of 6 temperatures is used to
calculate the average.
Displays the temperature of the motor housing sensed at the thermistor on the
motor externally.
Displays the target temperature for the motor cooling control. It is equal to enter-
ing condenser water temperature plus the programmable setpoint offset.
LD26738
DESCRIPTION
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
JOHNSON CONTROLS

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