8

TET2000 Series

tech.support@psbel.com

5.2 SHORT TIME OVERLOAD

The main output has the capability to allow load current up to 20% above the nominal output current rating for a maximum duration

of 20ms. This allows the system to consume extended power for short time dynamic processes.

Figure 20. Short circuit on V1 (20ms/Div)

5.3 OUTPUT GROUND / CHASSIS CONNECTION

The output return path serves as power and signal ground. All output voltages and signals are referenced to these pins. To prevent

a shift in signal and voltage levels due to ground wiring voltage drop a low impedance ground plane should be used as shown in

Figure 21. Alternatively, separated ground signals can be used as shown in Figure 22. In this case the two ground planes should be

connected at the power supplies ground pins.

NOTE: Within the power supply the output GND pins are connected to the Chassis, which in turn is connected to the Protective

Earth terminal on the AC inlet. Therefore, it is not possible to set the potential of the output return (GND) to any other than Protective

Earth potential.

Line

Neutral

PE

Signals

Logic,

Controls

GND

Load

Load

Logic

Voltage drop

TET2000-12-086NA/RA

Application

Figure 21. Common Low Impedance Ground Plane

Line

Neutral

PE

Signals

Logic,

Controls

GND

Load

Load

Logic

TET2000-12-086NA/RA

Application

Figure 22. Separated Power and Signal Ground