FOCKE MELER GLUING SOLUTIONS
4-18
MELTER OPERATION
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.
• That the failure input is not activated (E5), in which case starting the
pump would be impossible. In case of the pump be operating and this
input is activated, pumping will cease immediately.
The system will wait for the pumping control signal from the main machine.
If a speed has been previously set, this value will be shown on the display
and the pump will start to rotate at the speed indicated provided that all prior
conditions are met. Otherwise:
Содержание B4 NON-STOP
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