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FORM 160.54-M1
ISSUE DATE: 10/25/2019
the baseline derived Shutdown and Warning thresh-
olds override the thresholds entered with the Vibration
Setup setpoint. Thresholds entered with the Vibration
Setup setpoint after baseline derived Shutdown and
Warning thresholds are entered, override Baseline de-
rived values.
When either the Shaft End or Opposite Shaft End
motor bearing vibration has exceeded the value pro-
grammed for the High Vibration Warning setpoint for
the programmed number of DELAY seconds, Warning
Motor High bearing Vibration is displayed. This warn-
ing will automatically clear when both vibration values
decrease below the warning threshold. This warning
does not occur when the Motor Vibration Protection
setpoint is set to disabled on the MOTOR DETAILS
Screen or while the Warning Motor Bearing Vibration
Baseline Not Set warning is displayed.
When either the Shaft End or Opposite Shaft End
motor bearing vibration has exceeded the value pro-
grammed for the High Vibration Shutdown setpoint for
the programmed number of DELAY seconds, a safety
shutdown is performed and Motor High Bearing Vi-
bration is displayed. The chiller can be restarted after
both the vibration values decrease below the shutdown
threshold and the Compressor Switch is placed in the
Stop-Reset (O) position. This safety shutdown does not
occur when the Motor Vibration Protection setpoint is
CLOSE = OK
OPEN = TRIP
FIGURE 104 - MOTOR COOLING COIL LEAK DETECTOR – FLOAT SENSOR
JOHNSON CONTROLS
set to disabled on the MOTOR DETAILS Screen or
while the Warning Motor Bearing Vibration Baseline
Not Set warning is displayed.
COOLING COIL LEAK DETECTION
The Motor Cooling Coil leak detection is performed
with either a Float Switch or an Optical sensor. Either
the -000 or -001 board can be used.
The Motor Cooling Coil Leak Protection Setpoint must
be set to the sensor type that is used. Once set, the mi-
croboard, via serial communications, commands the
Motor Monitoring Board to read the appropriate sen-
sor input and it also sends a configuration command
as described below. When set to any setting other than
disabled, the LED status indicator is displayed and
the MOTOR COOLING COIL safety fault will occur
when the sensor indicates a leak. The settings are:
• DISABLED - Disables the Motor Cooling Coil
Leak Protection feature. The status LED and text
do not appear. The Motor Cooling Coil Leak fault
will not occur. This setting is used when the mo-
tor is not equipped with a leak detector or if it is
desired to disable this feature for service reasons.
This is the default setting. The Motor Monitoring
Board is commanded to not read any of its leak sen-
sor inputs.
Digital inputs
TB8
4
+24VDC
5
6
TB4
6
GND
JCI COMPANY CONFIDENTIAL
SECTION 32 - MOTOR MONITORING
OPT0
COUPLER
32
LD15002
267
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