Short Description

One Cable – Two Functions

AS-Interface (AS-i) enables maximum control

potential with its simplified installation technique.

Information and power supply are transmitted at the

same time via a two-wire cable to minimize connection

points.

AS-i power supply units use an integrated filter to

ensure that the modulated data flow is not affected.

In addition to this, the short-circuit and idling-proof

voltage output provides a current reserve of

approximately 60. This means that even loads with

high inrush currents can be started safely.

Safety Through Automatic Ground Fault Detection

If two ground faults occur in an AS-i system, this can

cause an unauthorized machine startup or mean that

the machine can no longer be stopped.

To prevent this from happening, AS-i power supply

units from Phoenix Contact indicate the first ground

fault as it occurs. The message is indicated by the

LEDs on the device and reported via an output.

In the default configuration, the signal of the message

output can be used to stop the system via the control

program or the PLC.

There is also the option of configuring the AS-i power

supply unit so that the AS-i power is switched off

automatically when a ground fault is detected. This

prevents potential danger to operating personnel and

machines/systems before it happens.