Contec DIO-1616B-LPE, User Manual

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2. Setup
DIO-1616B-LPE
15
Selecting Power Supply
This board equips an on board isolated power supply (12VDC, 240mA) for driving opto -isolation
circuits. You can select to use this internal power supply or use an external power supply for driving
the opto-isolation circuits in unit of two ports (16channels) per common.
- When the internal power supply is used, the input section of this board consumes up to 40mA
current maximum and the output channel switching section consumes up to 30mA current
maximum. Note, in this case, that the board can supply the following output cu rrent :
DIO-1616B-LPE:
170 mA
- The both internal and external supply must not be used simultaneously. Or the supply will be
broken down.
Setting method
Jumpers JP1 - JP4 on the board are used to select the internal or external power supply.
Figure 2.4. Power supply setting for driving the opto-coupler
CAUTION
Use internal power*
+0 port (Input)
+1 port (Input)
+2 port (output)
+3 port (output)
JP1 JP3
JP2 JP4
JP2
JP4
*Factory setting
Notes:These jumpers must be set in pairs.
Ports +0 and +1 serve as inputs and ports +2 and +3 serve as outputs.
JP1 JP3
1 2 3 1 2 3
1 2 3 1 2 3 1 2 3 1 2 3
1 2 3 1 2 3
Use external power