The cable layout is recommended as the following illustration.
xx2000000436
I/O connectors - Scalable I/O (option)
xx1900002448
Scalable I/O output connectorsA
Scalable I/O input connectorsB
The connectors contain 16 digital input signals, 16 digital output signals, 24 V and
0 V for the outputs, and 0 V for the inputs.
CAUTION
The process power supply should be supplied separately. Connecting the process
power supply through the logical power supply connector (X19) may damage
the device.
If the process power supply is supplied by the logical power supply connector
(X19), a surge protector must be installed to protect the device.
Continues on next page
88 Product manual - OmniCore C90XT
3HAC073706-001 Revision: D
© Copyright 2020-2021 ABB. All rights reserved.
3 Installation and commissioning
3.5.9 Descriptions for connectors
Continued
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