Meler MACRO FOAM Series, Инструкция по эксплуатации, Страница: 48 / 88

FOCKE MELER GLUING SOLUTIONS, S.A.
4-14
MELTER OPERATION
Pumping control
Starting up the pump control card
The pump control card (hereingafter also control card), features an ON-OFF
button that allows us to turn off the displays and LEDs (leaving on only the 24
Vdc power supply LED)
The control card will turn off automatically depending on the status of
pumping permission input:
• Whenever the pumping permission input is deactivated, the interface
will be turned off and the control will be inoperative, unless turned on
with the control card ON-OFF button.
• Should the 24 Vdc power supply to the control card be lost, on
recovering the power supply the control card will remain turned off
until pumping permission input is activated. If on recovering the
power supply the pumping permission input is activated, it will turn on
directly.
• If the power supply is available and pumping permission has not been
received and the control card be turned off it must be turned on with
the control card ON-OFF button.
Pumping safety measures
To prevent the equipment from starting up unexpectedly, the control panel
features by default a safety option that prevents pumping from commencing
until enabled by pressing the ON-OFF button on the control card. This function
may be disabled in the ‘User configuration menu’.
For the pumping control to allow the pump to operate, the pumping ON-OFF
button must be pressed, leaving it enabled (the red LED on the pumping ON-OFF
button will turn off). When enabled, the control card will allow pumping as soon as
all the required conditions are recovered, including pumping permission.
When pumping safety is enabled:
• In the event of loss of 24 Vdc power supply or the control panel is turned
off with the control card ON-OFF button, the control will start up with
pumping disabled (red ON-OFF button LED is illuminated) on recovering
the power supply or turning the control card on, and prevent pump
operation even if the pumping permission input is closed again, until the
pumping ON-OFF button is pressed and the red LED turns off.
• Whenever the pumping permission input is deactivated, the control
disables pumping (red ON-OFF button LED is illuminated) and prevents
the operation of the pump even if the pumping permission input is
closed again, until the pumping ON-OFF button is pressed and the red
LED turns off.