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FORM 160.79-O3
ISSUE DATE: 11/09/2018
FIGURE 32 - MOTOR DETAILS SCREEN
This screen displays information pertinent to the op-
tional Motor Monitoring feature. The feature is an ad-
ditional circuit board and sensors for each motor which
can monitor motor winding temperatures, motor bear-
ing temperatures, motor bearing vibration and provide
motor cooling coil leak detection if installed. The mo-
tor could be equipped with either RTD's or Thermis-
tors for winding and bearing temperature monitoring.
Motor cooling coil leak detection could be done with
either an optical or float type of sensor. This screen is
similar for both Motor 1 and Motor 2.
DISPLAY ONLY
Motor Run (LED)
Illuminates when the OptiView Control Center is com-
manding the motor to run.
% Full Load Amps
Displays the motor current as a percentage of chiller
Full Load Amps.
VSD Output Frequency
Only displayed when Motor Drive Type Setpoint is set
to any VSD type. Displays the frequency at which the
VSD is operating the motor. This value is provided by
the VSD Logic Board.
JOHNSON CONTROLS
MOTOR DETAILS SCREEN
PRV Position
Displays the present Pre-rotation Vanes position as a
value between 0% (closed) and 100% (full open).
Motor Windings
Temperature
Displays the enabled Motor Winding Temperatures
for phase A, B and C. When winding RTD's are en-
abled, there are 2 temperatures displayed per phase. If
Thermistors are installed then only one temperature is
displayed per phase. If any sensor has failed and is dis-
abled, its reading will not be displayed. Any RTD sen-
sor that registers as an open is considered invalid and
displays as XXX.X.
Average Winding 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 dis-
abled is not used in the calculation. When RTD's are
used for winding temperature measurement, there are
a maximum of 6 temperatures used to calculate the av-
erage. When Thermistors are used, there are a maxi-
mum of 3 temperatures used to calculate the average.
The text description and data box do not appear when
the Winding Temperature Protection option is not in-
stalled.
SECTION 2 – OPTIVIEW CONTROL CENTER
2
LD27871
91
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