ABB RDIO-01, User Manual

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RDIO-01 User’s manual 2-1
Chapter 2 – Overview
Overview
This chapter contains a short description of the Digital
I/O Extension module, a delivery checklist and warranty
information.
The RDIO-01
module
The Digital I/O Extension module (RDIO) offers three
digital inputs (24…250 V DC or 110…230 V AC) and
two relay outputs (1250 VA/250 V AC or 5 A/24 V DC).
The isolation voltage between the digital inputs, digital
outputs and power supply is 2.5 kV (1.5 kV between DI2
and DI3).
WARNING! According to international standards,
applying voltages below 50 V (DC or AC) and above
150 V (AC or DC) simultaneously to the digital inputs
and/or outputs of the RDIO-01 is not allowed.
Additionally, only voltages of the same nominal level
should be applied simultaneously to digital inputs DI2
and DI3 due to reduced isolation voltage.