Philips INCA 320 User Manual download pdf (Page 11)

The common grounds of the inputs 1..5 (see also 2.3.3)

are connected to each other. The common ground for the

sixth input is separate.

The minimal required input current for Ion (the current at

which the diode is conducting and emitting light) is 5 mA.

When the diode is conducting and thus emitting light, the

software will interpret this as a binary ‘1’.

The maximum allowed current is 10 mA.

2.3.3.2 Digital Outputs

The following diagram shows one output.

Common

24V

Signal Out

400

Figure 2-8: Digital Output

The common 24V lines of outputs 1..3 are connected to

each other. Also the common 24V lines of the outputs 4..6

are connected to each other.

When the software writes a binary ‘1’ to the output, the

diode will be conducting and so will the transistor. This will

result in an Ion state.

The maximum output current is 18 mA.

When the Inca is reset, the outputs will be in the state Ioff

(the transistor is not conducting).

2.3.3.3 Using the Digital Inputs and Outputs

The following figure gives an example of how the input can

be used.

Common Ground

Signal In

15V

940

24V

Inca

Figure 2-9: Using the input

The following figure shows an example of how an output

can be used.

Common 24V

Signal Out

400

24V

Inca

Figure 2-10: Using the output

2.3.4 Multi-purpose connector

Looking at the back of the Inca the connector in the left

bottom corner is a multi-purpose connector. The

connector, a 9 pole micro-D connector, contains

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Philips INCA 320 User Manual Page 11

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