A20733 B0 133
Input / Output Connections
2 Inputs
2.1 Object detection cell
•Role:
The object detector is connected to the DTOP and COM DTOP terminals on the industrial
interface board.
When it is activated by an object, the detector sends a signal to the printer which starts printing.
To avoid spurious signals, the DTOP input is filtered to a minimum of 200 µs.
The object detection input uses the properties of a high-speed photocoupler with an isolation
voltage of 2.5 kV.
2.2 Object detector inhibit
•Role:
The "-VALIMP" and "COM VALIMP" terminals on the industrial interface board can be used to
inhibit the object detection signal. They can be connected to any accessories which comply with
the specifications given.
The object detector inhibit input uses the properties of a high-speed photocoupler with an isolation
voltage of 2.5 kV.
2.3 Tachometric generator
•Role:
When the conveyor belt speed is variable, the "TACHY" and "COM TACHY" terminals on the
industrial interface board can be used to connect an open-collector tachometric generator to
sequence printing. The tachometric input uses the properties of a high-speed photocoupler with an
isolation voltage of 2.5 kV.
The "TACHY+" and "TACHY-" terminals can be used to connect a differential tachometric
generator.
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