
Function Description
R&S
®
TS-PSU12
24
User Manual 1504.4524.12 ─ 05
To prevent the relay contacts from being destroyed, the relays should only be switched
if no current is flowing through them. Before a contact is activated, the channel should
be turned off electronically.
The following functions are available to operate these relays:
●
rspsu_Connect
●
rspsu_Disconnect
●
rspsu_DisconnectAll
The function
rspsu_DisconnectAll
can be used to break all connections that were
set up with
rspsu_Connect
.
rspsu_DisconnectAll
has no effect on the configu-
ration of the coupling relays or ground relay.
5.4.2 Coupling Relays
The coupling relays connect the local analog bus on the module with the analog bus in
the R&S CompactTSVP. The function
rspsu_ConfigureCoupling
defines the sta-
tus of the coupling relays. Please consider that the function
rspsu_DisconnectAll
does not open these relays.
5.4.3 Ground relays
Each channel of the R&S TS-PSU12 has its own ground relay that can be used to con-
nect the CHx_LO signal to ground. PSU channels are operated ground free in their
basic state. The function
rspsu_ConfigureGround
is used to determine whether a
channel is being operated with ground reference or ground free. Also note that
rspsu_DisconnectAll
does not affect the ground relay!
For technical reasons, a non-switched PSU channel (all matrix and front relays of a
channel are opened) is automatically grounded with the ground relay. It is automati-
cally opened again before another connection is made if the channel is configured
ground-free.
5.5 Trigger unit
5.5.1 Trigger outputs
The Power Supply/Load Module 12V R&S TS-PSU12 can generate trigger signals on
lines PXI_TRIGn (X20) and XTOn (X10). The polarity of the trigger signal can be
adjusted. The following events may cause a change in the level on trigger lines:
●
Call to function
rspsu_InitiateTrigger
. This function generates a “General
Purpose” trigger (trigger pulse approximately 1 μs long) if trigger source “GP” has
Trigger unit