FOCKE MELER GLUING SOLUTIONS
4-16
MELTER OPERATION
Modes of operation
First of all, we must bear in mind that when password security is enabled and
the control card is not manipulated during one minute, it is blocked and you
need to enter the password. To prevent this from happening, password security
may be disabled following the steps in the section ‘Password security’.
Mode of operation with internal pumping control and internal speed control
In this working mode the user has full control of the start/stop function and
speed pump set.
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 ‘int’ and ‘ref’ in the position ‘int’.
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).
• 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.
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:
6. Ext ref LED: when operating in external reference mode and the external
reference voltage is other than zero, this LED will be illuminated. When the external
reference voltage is zero, this LED will be turned off. This LED is green in colour.
7. In/Out LED: when operating in external set point reference mode, these LEDs
will be activated and deactivated as the speed ramp options are programmed.
These LEDs are green in colour.
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