IO Modual
11
Figure 2-6 schematic diagram of digital input circuit
The circuit drawing of digital input is simplied as gure 2-6. When K is
switched off, OUT is in high state. When K is switched on, OUT is in low
state.
Auxiliary power supply for the digital input is 20-250 Vad/Vdc. The max
current in the loop line is 2mA.
The wire of digital input should be chosen between AWG22~16 or 0.5~
1.3mm
2
.
Wiring of Relay Output Circuit:
There are 2 relay output circuits in AXM-IO1 and AXM-IO3 modules
respectively. The relay output circuit can work in controlling state,
or work in alarm state. When it works in controlling state, it has two
optional output modes, latching mode and pulse mode. When it works in
alarm state, it has only one latching output mode.
Relay type is mechanical Form A contact with 3A/250Vac or 3A/30Vdc. A
mediate relay is recommended in the output circuit as in gure 2-7.
Electrical
Adjuster
VCC
R
OUT
20～250VAC/DC
K
DIn
DIC
IO module
Optical
coupler
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