JOHNSON CONTROLS
104
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
MESSAGE DESCRIPTION
SALES ORDER -
INVALID MODEL
NUMBER
This safety shutdown is set when the Model Number eld entered on the Setpoints – Setup –
Sales Order screen does not conform to the format expected. The format and data can be found
on the dataplate if it ever needs re-entry in the control.
Example:
YZ-MA033AN030P042A
The “Sales Order - Invalid Model Number” safety shutdown is set when any of the following are
true:
• Bearing Type is InvalidBearig
• Motor Size is InvalidMotorSize
• Compressor Size is InvalidCompSize
• Compressor Model Mag is InvalidCompModel AND Bearing Type is MagneticBearing
The fault is released when all of the values have been corrected. The chiller can be restarted
after the CLEAR FAULTS key is pressed.
SAFETY STOP
The System has been stopped immediatley due to the Safety Stop Button being depressed on
the side of the chiller control panel. The chiller should normally be shut down using the Stop
button on the Home Screen. The chiller can be restarted by rotating the red Safety Stop button
clockwise to reset it.
SYSTEM - STARTUP
FAILURE
The System has failed to progress from the Startup state for 60 seconds after start. If this occurs
3 times in 90 minutes the system will lock out on a Safety. The cycling fault is released when the
chiller is stopped and the Clear Fault button is pressed.
WATCHDOG – SOFT-
WARE REBOOT
The Microboard’s software Watchdog initiated a Microprocessor reset because it de-tected that
a portion of the chiller operating Program was not being executed. The result of this reset is
a Safety shutdown and re-initialization of the Program. This is generally indicative of a severe
electrical power disturbance or impending Microboard Failure. The chiller can be started after the
CLEAR FAULT key is pressed.
UPS – BATTERY NOT
CONNECTED
This safety fault initiates a soft shutdown if it is set while the chiller state is Running. It is set
during chiller state Running or Soft Shutdown when all of the following are true: Battery Voltage
Faults is Enabled
• “Warning - UPS - Battery Not Connected” warning has been set for 10 continuous minutes
This fault is also set during chiller state Stopped when all of the following are true:
• Battery Voltage Faults is Enabled
• Battery Disconnected Counter >= 4
It is released when any of the following are true:
• Battery Voltage Faults is Disabled
• Battery Disconnected Counter is 0
UPS – INVERTER LOW
BATTERY VOLTAGE
This safety fault is set when all of the following are true for 5 continuous seconds:
• Battery Voltage Faults is Enabled
• Control Voltage digital input is low (indicates line power is lost)
• Battery Voltage < Inverter Low Battery Voltage Threshold
It is released when any of the following are true:
• Battery Voltage Faults is Disabled
• Battery Voltage > Line Low Battery Voltage Threshold + 0.1 V. (Note the thresholds for set
and release are intended to be different)
VGD ACTUATOR
FAULT
The VGD actuator fault digital input has lost voltage either by wiring issue or fault indicated at
the actuator. The chiller begins a standard soft shutdown. The fault clears when the digital input
sees voltage. When the condition clears, the chiller can be started after the CLEAR FAULTS key
is pressed.
VGD ACTUATOR -
POSITIONING FAULT
The VGD Position feedback indicates greater or less than the VGD command by 5% for 1 minute
continuous. The fault clears when the position is within the command + 5 % over 1 minute. When
the condition clears, the chiller can be started after the CLEAR FAULTS key is pressed.
VGD FEEDBACK
FAULT
The VGD Feedback voltage is below 0.4 VDC or above 4.6 VDC. It is released when voltage is
within the range. When the condition clears, the chiller can be started after the CLEAR FAULTS
key is pressed.
TABLE 12 - SAFETY SHUTDOWN MESSAGES (CONT'D)
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