57
Operating Guide
PSI 8000 2U Series
EN
Date: 28-06-2012
Using the power supply
Undervoltage supervision
U<
Default:
0V
=
{ 0…
U>}
Tu<
Default:
100ms
=
{ 0…99:59h}
As soon as the voltage falls below the undervoltage threshold,
the undervoltage is notified after the response time
Tu<
.
The notification vanishes, if the undervoltage limit is exceeded
for the time
Tu<
. This undervoltage error is suppressed for
T
0
=100ms after the power output was switched on.
U<
Alarm: Undervoltage
This error shuts down the power output. An alarm has to be ack-
nowledged, before the power output can be switched on again.
U<
Warning: Undervoltage
The error is notified and remains until it is acknowledged and
not persistent anymore.
U<
Signal: Undervoltage
The analog interface (IF-A1, optional) can signalise an under-
voltage at one of the digital outputs.
7.6.2 Current supervision
I thre
The menu page
I thresholds
lets you configure the super-
vision circuits for under- and overcurrent.
Undercurrent supervision
I<
Default:
0A
=
{ 0…
I>}
Ti<
Default:
100ms
=
{ 0…99:59h}
The undercurrent error is signalised after the response time
Ti<
, if the actual value of the current falls below the ad-justed
undercurrent limit. The error notification vanishes if the actual
current has exceeded the threshold again for the time
Ti<
.
This undercurrent error is suppressed for T
0
=100ms after the
power output was switched on.
I<
Alarm: Undercurrent
This error shuts down the power output. An alarm has to be ack-
nowledged, before the power output can be switched on again.
I<
Warning: Undercurrent
The error is notified and remains until it is acknowledged and
not persistent anymore.
I<
Signal: Undercurrent
