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Input/ Output 5-11MN1942

5.2.6 Generalpurpose output DOUT1
Location Connector X3, pins 3 & 13
(Matingconnec tor: Weidmüller Minimate B2L 3.5/20)
Name DOUT1
Description General purpose opto-isolated digital output
Outputc urrent: 100mAmaximum
User supply: +28VDC maximum
Updateinterv al: 1ms
Theoptically is olated general purpose output is designed to source current from the user s upply
asshown in F igure 30. The PS2562L has a maximum power dissipation of 200mW at 25°C. The
maximum saturated voltage across the outputs when active is 1.0VDC,so it can be used as a
TTLcompat ible output.
Theoutput includesa self -resetting fuse that operates at approximately 200mA. The fuse may
takeup to 20 s econds to reset after the load has been removed. If the output is used t odirec tly
drive a relay, a suitably rated diode must be fitted across the relay c oil, observing the correct
polarity. This is to protect the output from the bac k-EMF generated by the relay coil when itis
de-energized. The sense of the output can be conf igured in Mint WorkBench, and its state is
displayed in the Spyw indow.
DOUT1+
MicroFlexe100
TLP127
DOUT1-
Load
(Relaywith
diodeshown)
Fuse
Usersupply
V+
Usersupply
GND
200mA
220R
+3.3V
13
3
[Error]
‘X3’
4n7
4n7
Figure32 - DOU T1 output circuit
Whenthe MicroFlex e100is connected to Mint WorkBench, the activ e level of the output can be
configuredusing the Digital I/ O tool. Alternatively,the Mint keyword OUTPUTACTIVELEVEL can
beused in the c ommand window.S ee the Mint help file for details.
313