Baldor MN1274 06/2001 installation manual Digital Outputs, OUT.5, OUT.6, OUT.7, OUT.8

3.3.3 Digital Outputs - X13

	Location	Connector X13
		Pin	Name	Mint keyword
		13	DOUT5-	OUT.5
		14	DOUT5+	OUT.5
		15	DOUT6-	OUT.6
		16	DOUT6+	OUT.6
		17	DOUT7-	OUT.7
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		18	DOUT7+	OUT.7
		19	DOUT8-	OUT.8
		20	DOUT8+	OUT.8
20	Description	Four general purpose optically isolated digital outputs
		(DOUT5 to DOUT8).

Each optically isolated output may be configured for either sinking or sourcing current up to a maximum of 50mA on each output. The maximum saturated voltage across any of these outputs when active is 1.0VDC, so they can be used as TTL compatible outputs. These outputs can have a mixed configuration, with some sinking current while others source current. However, if the outputs are used to directly drive a relay, a suitably rated flyback diode must be fitted across the relay coil, observing the correct polarity. This is to ensure that an output is protected from the back-EMF generated from the coil when it is de-energized. The outputs are updated every 30.72ms and can be written to directly using the Mint keyword OUT (for example OUT.5). If a faster response is required, DOUT0~DOUT4 on connector X5 can be used.

Sink

50mA

maximum

Typical

DOUT+

DOUT-

Relay &

Flyback diode

USR V+

USR GND

X13

13

14

15

16

17

DOUT5- DOUT5+ OUT.5

DOUT6- OUT.6 DOUT6+

DOUT7- OUT.7

Source

50mA

maximum

Typical

DOUT+

DOUT-

USR V+

USR GND

18

19

20

DOUT7+

DOUT8- OUT.8 DOUT8+

Figure 18 - X13 Digital output circuit

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