Meler Macro Series, Instruction Manual

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FOCKE MELER GLUING SOLUTIONS
4-18
MELTER OPERATION
The system will wait for the speed signal from the main machine. When the
signal has been received, if a speed has been previously set it will appear on
the display and the pump will begin to rotate at the indicated speed.
If not, the rotation speed must be adjusted to the value required for the
application. There are three ways to do this:
1. Change the voltage applied from the main machine.
2. Change the full scale (see section ‘1. MAXIMUM RPM’ in the ‘User
configuration menu’).
3. Modify the speed ramp (see section ‘Configuring speed ramp’).
Keeping the ‘Vin’ key pressed will show the voltage sent by the main machine.
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 MAXIMUM RPM ALARM TIME appears.
• When the MINIMUM RPM ALARM TIME appears.
• When the voltage signal from the main machine is zero.
The maximum full scale for admissible revolutions is 100 (we recommend
working at speeds of not less than 10 rpm and not greater than 80 rpm).
The full scale can be adjusted by reducing this value in percentage terms. To
make adjustments consult the ‘User configuration menu’, ‘1. MAXIMUM RPM’.
Mode of operation with external pumping control and internal speed control
In this operating mode, pumping is controlled from the main machine while
speed is controlled from the equipment.
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 ‘int’. The ‘on ext’
LED will be illuminated when temperature is ok.
To activate the start-up status, all of the following conditions must be met:
• That the input for pumping permission (E4) at central control is activated, as
pumping is not possible unless the equipment temperature is OK.
• That pumping is enabled with the pumping ON-OFF button (red LED is
turned off).
• If the external ‘ok’ mode (start-stop) is selected, the external ‘ok’ input
(E3) must be activated.