AGFA Anapurna H3200i LED, Руководство для продвинутых операторов

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2.2 Safety devices
2.2.1 Safety sensors (light curtains)
2.2.2 Wing Sensors
2.3 Safety stop
I nterrupting a safety sensor (light curtain) or activating a wing sensor immediately results in a safety stop.
A safety stop has the following effects:
• Media transport and transport vacuum are switched OFF.
• LED units are switched OFF.
• The shuttle head lifts up to its highest position.
• The shuttle moves at low speed to home position.
• The ink pumps (ink flow) are stopped.
The following parts are switched or stay ON:
• The vacuum of the ink circuits stays on to prevent the ink flowing away.
• The printer’s internal computer remains on to permit use of the control interface.
• The white ink maintenance circuit stays active (stirrer and ink circulation).
If the electrical mains supply falls away, the battery backup power supply circulates the white UV ink for 60 hours.
The stirrer of the white ink tank will stop, as the electrical switch is NOT driven by the battery backup. An empty
battery takes 5 days to completely charge again.
Vertical safety light curtains are installed at the front and back of the printer.
A safety light curtain consists of two opto-electronic beams with a sensing
field (curtain) in between. The light curtains are used to detect the presence
of a person’s finger, hand, limb or other obstacle.
The light curtains are active during production. The machine goes into safety
stop as soon as a sensing field is interrupted, (see 2.3).
Wing sensors are installed behind the ionization bars
at both ends of the shuttle. The wing sensors prevent
the print heads from coming into contact with any-
thing on the media transport belt. This may occur
when the media is not perfectly flat, when the media
thickness was not properly set, or when something
falls into the printing area of the media transport.
If a wing sensor is activated during movements of the
shuttle, the machine goes into safety stop (see 2.3).