ITW Dynatec DM55 DynaDrum - Faults; Alarms; Operator Response to Error Indication Alarms

Chapter 6
Controller V6 Touch
ITW Dynatec
DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19 Page 101
Item Description
1
Acknowledge Button
If a fault/ alarm is indicated, the affected temperature zone and the Acknowledge button will be
highlighted red.
When this occurs, follow these steps:
• Correct and clear the faults/ alarms.
• Press the Acknowledge button in order to switch On the main contactor.
Faults/ Alarms
Among the Faults and Alarms that may be displayed are
:
•
RTD Fault = a platen, hose or head sensor has an open circuit.
• Temperature Alarm = a temperature zone has exceeded its selected over
‐
temperature set point, (which is the set point plus the Temperature Alarm Window and
Temperature Alarm Hysteresis) or when it is below its selected under
‐ temperature set
point (which is the set point minus the Temperature Alarm Window and the
Temperature Alarm Hysteresis).
•
Drive Failure = a motor drive (frequency converter) has a fault.
•
Minimum Level = adhesive level has dropped below the level sensor and the drum is
empty.
•
Feedback Failure Motor # = (optional) speed monitor pump addressed.
• Overtemperature = hardware over-temperature indication.
• Communication Error = Communication error between the touch panel and
controller.
• Parameter CRC Error = parameter memory is lost. Call ITW Dynatec Technical
Service.
• Feedback Failure Purge Valve = Purge Valve doesn’t work properly (optional)
• Other Faults or Alarms = Call ITW Dynatec Technical Service.
When an alarm condition occurs, the current display will be interrupted only if a sensor (or
motor drive) failure occurs
. If more than one alarm condition occurs simultaneously, all
alarm conditions will be displayed
sequentially.
Operator Response to Error Indication Alarms
If an alarm occurs during operation, the controller will switch off the internal power to the
heaters and an appropriate alarm indication will appear in the status line of the display.
Pressing the Acknowledge button resets the error. If several zones display alarms, each
must be acknowledged. The operator must either switch OFF the indicated temperature
zone(s) or troubleshoot to correct the problem.