1:
S1, current input L1
9:
I1, Digital input 1 or selection rate
2:
S2, current input L1
8:
O1, Digital output 1
3:
S1, current input L2
7:
CO, Common digital outputs
3.3 Operating Conditions
Operating Temperature:
-5 °C/ +45 °C
Relative Humidity:
5 to 95 % RH (without condensation)
3.4 Wiring
The RIO 425 has these main connections
● AC Power Supply
● Communication to the DCU
● Generator voltage interface
● Generator current interface
When properly connected and communicating to the DCU on the RIO link, the DCU will
automatically detect the RIO 425 and add an instrument page similar to the one below.
3.4.1 Power Supply
On the RIO 425, connect an AC power supply to terminals A1 and A2.
The supply shall be in the range 100 – 240 VAC (+/- 10%).
Power Supply Fuse
The RIO 425 module shall be protected with an external 2 A fuse on the supply line.
Wire Requirement
Supply wires shall have a minimum area of 1mm
2
(~17 AWG).
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