Inovance MTIO-2824RND, Руководство пользователя

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18
No. Name Direction Description
4 GND
Analog
ground
Analog ground
5 AO0 Output Bit 0 of user linear voltage output -10 V to +10 V
6 AO1 Output Bit 1 of user linear voltage output -10 V to +10 V
7 GND
Analog
ground
Analog ground
8 GND
Analog
ground
Analog ground
3.3 External Wiring
■
Wiring of DI terminals
As shown in the following figure, SS0 on the left is connected to 24 V. It is sink input
and active at low level. (SS0 on the left can be connected to 0 V, too. In this case, it is
source input and active at high level.)
As shown in the following figure, SS1 on the right is connected to 0 V. It is source input
and active at high level. (SS1 on the right can be connected to 24 V, too. In this case, it
is sink input and active at low level.)
SS0 and SS1 can be connected to 0 V or 24 V at the same time. You can wire them as
required.
Internal Circuit External Wiring
Internal Circuit
Signal
Name
Right
24V
SS0
00
0V
SS1
14
4.7 k Ω
Signal
Name
Left
4.7 k Ω
■
Wiring of DO terminals
The following figure shows the wiring of DO terminals. The load can be powered by the
internal 24 V power supply of the I/O module (maximum output current 0.5 A) or the
external 24 V power supply. When the external power supply is used, the COM terminal
must be connected to the power ground terminal of the load.