53
CONTROL SYSTEM
Controller technical data
Description Typical Minimum Maximum
Power supply voltage * 12, 0 V~ 10,8 V~ 13, 2 V~
Power supply frequency 50 Hz / 60 Hz - -
Power 11 VA - -
Insulation class 1 - -
Protection degree Frontal IP0 - -
Ambient operating temperature 25 °C -10 °C 60 °C
Ambient operating humidity (not condensing) 30 % 10 % 90 %
Ambient storage temperature 25 °C -20 °C 85 °C
Ambient storage humidity (not condensing) 30 % 10 % 90 %
* The controller is powered by a proper insulated transformer.
Alarms
Alarm activation and reset
The controller can carry out complete diagnostics on the machine, detecting all operating anomalies and signalling a number of
alarms.
Activation of an alarm involves :
• blocking of loads concerned
• indication of alarm code of the display
Alarms that can damage the unit or system require manual resetting or an intervention by the operator to reinstate the controller by
pressing the “set” button. It is advisable to carefully check the cause of the alarm and make sure the problem has been eliminated
before restarting the unit.
Less critical alarms are automatic reset. As soon as the cause of the alarm has been eliminated the unit resumes working and the
alarm code goes off the display. Some of these alarms become manual reset if the events per hour exceed a given limit.
Number of events per hour
The count of events is provided for some alarms : if the number of events in the last hour has reached a limit, the alarm goes from
automatic to manual reset.
Alarm sampling occurs every 225 seconds. If an alarm is activated several times in a sampling period (225 seconds), it is counted
only once.
Example. If a number of events per hour equal to 3 is set, for the alarm to go from automatic to manual it must have a duration of
between 2*225 seconds and 3*225 seconds.
Alarm
Count
Alarm sampling
Automatic Reset
Manual Reset
Time
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