Maguire Products VBD-150 Installation Operation & Maintenance page 68

VBD® - Vacuum Dryer®
*** ALARM:27 ***
AUTO SHUTDOWN
Press Any Button
To SILENCE alarm
*** ALARM:28 ***
HH MATERIAL LOW
Press Any Button
To SILENCE alarm
*** ALARM:29 ***
MATERIAL TEMP
Press Any Button
To SILENCE alarm
*** ALARM:30 ***
VC DUMP FAILURE
Press Any Button
To SILENCE alarm
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Auto Shutdown
This alarm triggers when an Auto Shutdown, that is, a shut down at a pre-
determined time, has commenced. "Commencement" is defines as the
time at which the final vacuum chamber fill has occurred.
Heating Hopper Material
On VBD's with an optional Heating Hopper Level sensor, this alarm triggers
when the "HH Mat. Level" alarm is enabled under the "Alarm Setup" menu
and the level in the heating hopper has dropped below the HHA parameter
value.
Material Temperature Alarm
When the Material Temp alarm is enabled under the "Alarm Setup" menu,
during any instance where the Heating Hopper is called upon to dispense
material into the vacuum chamber and the T2 (heating hopper exit)
temperature is below the ESM parameter level, this alarm will trigger. Its
purpose is to alert the operator that insufficient heating has occurred, most
likely from a process throughput that exceeds the capacity of the VBD.
VC Dump Failure
When the VC Dump alarm is enabled under the Alarm Setup menu,
vacuum chamber dumping is monitored. When is has been determined
that the vacuum chamber has failed to dump sufficient material into the
retention hopper after a certain amount of retries as defined by the VDR
parameter, this alarm will trigger. The vacuum chamber will continue dump
attempts indefinitely, until the "successful dump" criteria is satisfied, at
which point this alarm will auto-silence.
Rev. August 31, 2016 – VBD-150
Maguire Products, Inc.