ABB AC500 V3 - 1.7.3.2.2 Functionality; 1.7.3.2.3 Connections

The inputs/outputs are galvanically isolated from the Ethernet network. There is no potential
separation between the channels. The configuration of the configurable digital inputs/outputs is
performed by software.
1.7.3.2.2 Functionality
Parameter Value
Interface Ethernet
Protocol EtherCAT
Power supply From the process supply voltage UP
Supply of the electronic circuitry of the I/O
expansion modules attached
Through the I/O bus interface (I/O bus)
Rotary switches Not used; reserved for future extensions
Configurable digital inputs/outputs 8 (configurable via software)
Digital inputs 8 (24 V DC; delay time configurable via soft-
ware)
Digital outputs 8 (24 V DC, 0.5 A max.)
LED displays For system displays, signal states, errors and
power supply
External supply voltage Via terminals ZP, UP and UP3 (process supply
voltage 24 V DC)
Effect of incorrect input terminal connection Wrong or no signal detected, no damage up to
35 V
Required terminal unit
TU507 or TU508 Ä Chapter 1.5.1 “TU507-ETH
and TU508-ETH for Ethernet communication
interface modules” on page 122
1.7.3.2.3 Connections
The Ethernet communication interface module CI512-ETHCAT is plugged on the I/O terminal
unit TU507-ETH or TU508-ETH. Properly seat the module and press until it locks in place. The
terminal unit is mounted on a DIN rail or with 2 screws plus the additional accessory for wall
mounting (TA526).
The connection of the I/O channels is carried out using the 30 terminals of the I/O terminal unit.
I/O modules can be replaced without re-wiring the terminal units.
For a detailed description of the mounting, disassembly and connection of the
module, please refer to the System Assembly chapter Ä Chapter 2.5 “AC500-
eCo” on page 925.
The terminals 1.8 and 2.8 as well as 1.9, 2.9 and 3.9 are electrically interconnected within the
terminal unit and have always the same assignment, independent of the inserted module:
Terminals 1.8 and 2.8: Process supply voltage UP = +24 V DC
Terminal 3.8: Process supply voltage UP3 = +24 V DC
Terminals 1.9, 2.9 and 3.9: Process supply voltage ZP = 0 V
Device specifications
Communication interface modules (S500) > EtherCAT
2022/01/31 3ADR010278, 3, en_US 713