Technical data

Operation
4-51
P/N 7135049A
E 2007 Nordson Corporation
VBC_Siemens
Variation 1: Line stop signal
Enable pressure build-up feature and select condition for which the
pressure build-up is to be started (here: Line stop signal).
The motors are speed-controlled during production. If the signal Line stop is
switched via the interface Standard I/O or the field bus, the motors are
pressure-controlled to the value Setpoint for pressure build-up.
As soon as the signal Line start is switched, the melter returns to
speed-controlled mode.
Fig. 4-66
Switching between Warning/Fault
The operator can choose whether an open safety valve generates a fault
(motors are stopped) or a warning.
Variation 2: Line speed
Enable the pressure build-up feature and select the condition for which the
pressure build-up is to be started (here: Line speed).
The motors are speed-controlled during production. If the line speed signal
falls below the value Line speed value for activating pressure build-up, the
motors are pressure-controlled to the value Setpoint for pressure build-up.
As soon as the line speed signal exceeds the value plus 5% (15% in the
example), the melter returns to speed-controlled mode.
Switching between Warning/Fault
The operator can choose whether an open safety valve generates a fault
(motors are stopped) or a warning.