Meler MACRO FOAM Series, Instruction Manual, Page: 54 / 88

FOCKE MELER GLUING SOLUTIONS, S.A.
4-20
MELTER OPERATION
The system will wait for the pumping control signal from the main machine.
If a work pressure has been previously set, this value will be shown on the
display and the pump will start to work at the pressure indicated provided that
all prior conditions are met. Otherwise:
3. Using the up/down arrows, select the pressure and/or wait for pumping
permission to be enabled (red LED is turned off).
At this moment, the pump will start to work at the pressure indicated on the
display.
4. Adjust the work pression to the value required for the application. The
selected value is set pressing the right arrow key after blinking three
times.
The pump will stop whenever:
• The control card is disabled with its ON/OFF button.
• The pumping ON-OFF button is pressed (red LED is illuminated).
• When the pumping permission input is deactivated (E3).
• When a variator error signal is activated (E5).
• When the MAXIMUM PRESSURE ALARM TIME appears.
• When the MINIMUM PRESSURE ALARM TIME appears.
The maximum full scale for admissible pressure is 85 bar.
This full scale can be adjusted by reducing this value in percentage terms.
To make adjustments consult the ‘User configuration menu’, ‘1. MAXIMUM
PRESSURE ALARM’.
Mode of operation with external pumping control and external pressure
control
In this working mode, both pumping and pressure are controlled from the
main machine.
Follow the steps below to use this operating mode:
1. Press the ON/OFF button to light up the control card.
2. Select ‘ok’ in the position ‘ext’ and ‘ref’ in the position ‘ext’. The ‘on
ext’ and ‘ref ext’ LEDs will be illuminated when temperature is ok and
voltage is received.