ABB AC500 V3 Hardware Manual page 329

The configuration is performed by software. The modules are supplied with a process supply
voltage of 24 V DC.
All available inputs/outputs are galvanically isolated from all other circuitry of the module. There
is no potential separation between the channels within the same group.
For use in extreme ambient conditions (e.g. wider temperature and humidity range), a special
XC version of the device is available.
Functionality
Parameter
Fast counter
LED displays
Internal power supply
External power supply
Required terminal units
The device is plugged on a terminal unit
on page 135. Position the module properly and press until it locks in place. The terminal unit is
either mounted on a DIN rail or to the wall using 2 screws plus the additional accessory for wall
mounting (TA526
Connections
The connection of the I/O channels is carried out using the 40 terminals of the I/O terminal unit.
I/O modules can be replaced without re-wiring the terminal units.
The terminals 1.8 to 4.8 and 1.9 to 4.9 are electrically interconnected within the I/O terminal unit
and have always the same assignment, irrespective of the inserted module:
● Terminals 1.8 to 4.8: process supply voltage UP = +24 V DC
● Terminals 1.9 to 4.9: process supply voltage ZP = 0 V DC
2022/01/31
Ä Chapter 1.8.2.6 "TA526 - Wall mounting accessory" on page 902).
WARNING!
Risk of death by electric shock!
Hazardous voltages can be present at the terminals of the module.
Make sure that all voltage sources (supply voltage and process supply voltage)
are switched off before you begin with operations on the system.
For a detailed description of the mounting, disassembly and connection of the
module, please refer to the System Assembly, Construction and Connection
chapter Ä Chapter 2.6 "AC500 (Standard)" on page 971.
3ADR010278, 3, en_US
Value
Integrated, many configurable operating modes (only with
AC500)
For signal states, errors and supply voltage
Through the I/O bus interface (I/O bus)
Via the terminals ZP and UP (process supply voltage
24 V DC)
TU531 or TU532 Ä Chapter 1.5.4 "TU531 and TU532 for
I/O modules" on page 135
Ä Chapter 1.5.4 "TU531 and TU532 for I/O modules"
Device specifications
I/O modules > Digital I/O modules
329