Jamesway Sentry Manual page 112

Fan Failure: This alarm indicates that one or more fans is either using too much or too little current.
Most likely the fan has stalled or the fan motor's thermal shutdown protection was triggered. On
multi-stage incubators sail switches are used instead of current sensing, thus a sail switch may be
defective. On JM Machines, this alarm is activated if the fan speed goes outside of the allowed range.
Door Open: This alarm occurs if the door has been opened on a hatcher with the fans still turned on.
When the fans are turned off this alarm is replaced by the maintenance alarm. Note: This alarm does not
occur on ACI machines or multi-stage incubators.
Damper: This alarm occurs if the controller is attempting to open or close the damper, but the damper
position does not change for two minutes. This alarm most likely indicates a malfunctioning damper drive
motor, or possibly a defective relay on the power interface module board (PTA415, PTA416 or PTA417).
Damper Sensors: This alarm indicates that the controller is unable to read the damper position. The
controller will inhibit all damper movement. One reason for the failure might be that the magnet is no
longer located over top of the sensors.
Egg Turn Failure: This alarm is generated if one or more of the racks have not turned to the correct
position. It could also indicate a fault in the egg turn cabling. NOTE: An 'Egg Turn Cabling' alarm
supersedes this alarm if it is active.
Egg Turn Cabling: This alarm indicates that the egg turn cables do not form a continuous loop, either
because some of the plugs are not connected or there is a fault in the cables.
Communication: This alarm is generated if the Master display cannot communicate to a machine
controller or display panel. Some of the causes are: the machine or display is powered off, address
switches are not set properly, a fiber optic hub is powered off, a fiber optic cable is damaged, or light is
getting into a fiber optic cable somewhere on the network. As long as there is a communication alarm with
a machine, the information on the machine status screen is not updated and the operator will not be able
to modify any of the machine's parameters. Refer to Section 6.1 on Page 42 to prevent this alarm if a
machine is turned off.
Sensor Failure: The microprocessor inside the Intelligent Sensor Module (ISM) has detected an
internal malfunction. If the error is only momentary and the temperature and humidity readings appear to
be correct, then the problem can be ignored. If however the problem persists or the readings appear to be
erroneous, then the ISM needs to be replaced. NOTE: After replacing an ISM always recalibrate the
sensor.
Sensor Communication: The machine controller is unable to communicate with the Intelligent Sensor
Module (ISM). If this alarm is only momentary then the alarm can be ignored. If however the problem
persists or happens frequently, then there may be a problem with the ISM or with the cable to the ISM.
NOTE: After replacing an ISM always recalibrate the sensor.
Alarm Relay: This alarm indicates that the alarm relay is not in the position the controller expects it to
be, possibly due to a faulty relay. NOTE: This alarm will remain active until the condition has cleared and
the operator acknowledges it.
Alarm Bypass: This is an informational alarm indicating that the alarm bypass is activated, serving
mostly as a reminder to the operator.
NOVRAM/RTC Failure: This alarm indicates that either the NOVRAM (which backs up important
112 Sentry Control System