Nordson VersaBlue VB Series, Руководство пользователя

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1
Operation
4-74
P/N 7105144G
2008 Nordson Corporation VersaBlue_NW
Motor
(contd.)
Screen 5: Pressure Build-up, Flow Control
Touch the key to move to the fifth setup screen. The appearance of
the screen depends on the melter configuration. Refer to Control Panel −
Overview − M2.2, M8.1 and M8.2.
Pressure Build-up
This feature allows the material pressure to be regulated to an adjustable
value as soon as the parent machine stops (condition for variation 1) or
when the line speed signal falls below an adjustable value (condition for
variation 2). This allows the melter to maintain a certain pressure even
when there is a break in production.
The appearance of the motor LED changes from a single color to two colors
as long as the condition for pressure build-up is fulfilled (Refer to
illustration).
Fig. 4-105 Motor LED
The pressure sensors A are always responsible for pressure control during
pressure build-up.
NOTE: When pumps are in the process of building up pressure, there is no
pressure alarm monitoring (sensors A and B).
There is no pressure alarm monitoring for pressure sensors C as soon as at
least one pump is building up pressure.
NOTE: The output Motor running on the interface Standard I/O is switched
off as long as the corresponding pump is in the process of building up
pressure.
When pressure build-up has been completed for all pumps for which this
feature has been selected, meaning that the pressure setpoint has been
reached, an indication appears in the status line on the control panel and a
signal is switched via the interface Standard I/O or the field bus.
NOTE: The threshold switch is automatically deactivated as long as
pressure build-up is enabled.