FOCKE MELER GLUING SOLUTIONS
4-6
MELTER OPERATION
Hot-melt display level (optional)
If the equipment is fitted with a level detector, and the hot-melt level drops
below the programmed level (capacitive detector), a signal is sent to the
melter control which launches the following actions:
1. On-screen display (if the function is activated).
2. It closes a non-voltage output contact where the user will install the
required device (horn, light or PLC input).
Simply refill the tank and wait for the adhesive to melt enough that the sensor
sends the message that the correct level has been reached.
Display and adjustment of the working speed
The pump rotation speed (in revolutions per minute) is shown on the
display for each pump control card on the equipment. These revolutions
may be adjusted by using the up/down arrow keys (pumping speed, internal
reference), through a voltage signal from the main machine or by modifying
the full scale (pumping speed, external reference). The pump rotation speed
must be adjusted to the requirements of the application.
Warning: Although rotation speeds can be selected between 0 and 100 rpm
it is not advisable to operate at speeds of less than 10 rpm (the flow may
become inconstant depending on the motor load) or greater than 80 rpm
(pump operating at maximum revolutions).
Note: for further information on adjusting working speeds, see the section
‘Modes of operation’.
Temperature adjustment
The melters leave the factory with the following set point temperature values:
• 160 °C (320 °F) for the tank, premelter and distributor.
• 150 °C (320 °F) for the hoses.
• 160 °C (320 °F) for the applicators.
• Disconnected (OFF) for the hoses and applicators.
• °C displayed
• Overheating value: 25°C
• Standby value: 40%
• Delay time: 10 min
• Timetable programs: ON
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