TSX SUP A05 Power Supply Connections

Illustration

Diagram of connections:

(1) Connection to be made when using a 100...120V AC power supply network.

(2) External protection fuse on phase (Fu): 6.3A 250V time delay.

(3) AS-i shielded cable screen if in disturbed (EMC) environment.

Synoptic of Connections

The TSX SUP A05 power supply unit is designed to supply the AS-i bus, and the connected slaves (connected to 30 V/5A output). It is also equipped with an auxiliary 24 VDC/7A power supply for high power consumption sensors/actuators; this is to be connected using the black AS-i ribbon cable.

Principle diagram:

Connection Rules

Primary: observe wiring requirements for the phase and the neutral when wiring.

DANGER

ELECTRIC SHOCK

Connect the ground terminal of the module to the protective ground by a yellow/green wire.

Failure to follow these instructions will result in death or serious injury.

The "AC power supply network" terminal and 24 V and 30 Vdc AS-i terminals are protected by a flap allowing access to the wiring terminals. The wiring outputs descend vertically, and can be held in place by a cable tie.

Secondary:

To comply with isolation requirements for a 24 V SELV isolated voltage, the following wiring is used:

an operating voltage >= 300Vac with a 1.5mm2 or 2.5mm2 cross-section for connection to the mains,
an operating voltage >= 300Vac with a cross-section of 2.5mm2 for the 24 V outputs and the ground.
wire the two 24V terminals in parallel or distribute the loads between the two 24V outputs when the total current to be delivered is greater than 5A.

It is necessary to use a shielded cable for the AS-i bus only in cases where the installation is subject to very high levels of disturbance in terms of EMC (Electro Magnetic Compatibility).

Given the high level of current this power supply can generate, its position on the bus is of great importance. If the power supply is positioned at one end of the bus, it provides its nominal current (for example 5A) for the entire bus, and the voltage drop at the other end of the bus is therefore proportional to the 5A delivered. If it is positioned in the middle of the bus, the voltage drop at either end is only proportional to 2.5A where the power consumption on each of the two sections of the bus is equal.

If there is no slave with high power consumption, it is advisable to position the power supply at the center of the installation. Conversely, if the installation has one or more high-power consumers, it is advisable to position the power supply close to these devices.

NOTE: Where high-power consumption actuators (contactors, solenoid coils , etc.), the TSX SUP A05 power supply can provide the auxiliary 24 Vdc, isolated from the AS-i line.