ABB AC500 V3 Hardware Manual page 225

Terminal
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The internal power supply voltage for the module's circuitry is carried out via the I/O bus
(provided by a communication interface module or a CPU). Thus, the current consumption from
24 V DC power supply at the terminals L+/UP and M/ZP of the CPU/communication interface
module increases by 10 mA per DO572.
An external power supply connection is not needed.
2022/01/31
Signal
N4
O5
N5
---
O6
N6
O7
N7
---
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.
WARNING!
Removal/Insertion under power
The devices are not designed for removal or insertion under power. Because of
unforeseeable consequences, it is not allowed to plug or unplug devices with
the power being ON.
Make sure that all voltage sources (supply and process voltage) are switched
off before you
– connect or disconnect any signal or terminal block
– remove, mount or replace a module.
Disconnecting any powered devices while energized in a hazardous location
could result in an electric arc, which could create a flammable ignition resulting
in fire or explosion.
Make sure that power is removed and that the area has been thoroughly
checked to ensure that flammable materials are not present prior to proceeding.
The devices must not be opened when in operation. The same applies to the
network interfaces.
3ADR010278, 3, en_US
Device specifications
I/O modules > Digital I/O modules
Description
Neutral conductor for the
output signal O4
Output signal O5
Neutral conductor for the
output signal O5
Reserved
Output signal O6
Neutral conductor for the
output signal O6
Output signal O7
Neutral conductor for the
output signal O7
Reserved
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