Meler MACRO FOAM Series, Instruction Manual, Page: 57 / 88

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MELTER OPERATION MA-5127-ENG MACRO FOAM SERIES MELTER MANUAL
Displaying alarms and reset function
Maximum pressure alarm
This alarm will be triggered when the pump work at a pressure exceeding
the MAXIMUM PRESSURE ALARM value for the period established in the
MAXIMUM PRESSURE ALARM TIME field.
• When this alarm is triggered, an ‘E.H.’ error is shown on the control
card.
• To reset this error, you must turn off and start up the control card with
its ON/OFF button.
Minimum pressure alarm
This alarm will be triggered when the pump works at a pressure that is below
the MINIMUM PRESSURE ALARM for the period established in the MINIMUM
PRESSURE ALARM TIME field.
• When this alarm is triggered, an ‘E.L.’ error is shown on the control
card.
• To reset this error, you must turn off and start up the control card with
its ON/OFF button.
Variator alarm
This alarm is triggered when the control card input is activated by a variator
error signal.
• When this alarm is triggered, an ‘E.U.’ error is shown on the control
card.
• The error message will be maintained while the variator error input
(E5) remains active. As soon as this input is deactivated the alarm will
be reset.
Note: In the event that a PRESSURE alarm and a variator ERROR alarm
should coincide, alternating messages will appear on the display.
Configuring pressure curve
For equipment operating in external reference, the display will show the
current pump pressure set point (input reference conversion as per the full
scale and the conversion table).
The conversion table may be programmed with up to 5 points (input voltage (V)
and output pressure (bar)).