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EPS Stromversorgung GmbH
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Germany
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Fax: +49 821 / 570451-25
www.eps-germany.de
PSB 9000 3U Slave Series
3.7.2.1
User defined events
The monitoring functions of the device can be configured for user defined events. By default, events are deacti
-
vated (action = NONE). Contrary to device alarms, the events only work while the DC terminal is switched on. It
means, for instance, that you cannot detect undervoltage (UVD) anymore after switching the DC terminal off and
the voltage is still sinking.
The following events can be configured independently and can in each case trigger the actions NONE, SIGNAL,
WARNING or ALARM.
Action
Impact
NONE
User defined event is disabled.
SIGNAL/WARNING
On reaching the condition which triggers the event with action
SIGNAL
or
WARNING
a
bit in the status register of the device will be set. That register can be read via USB. With
this series, actions
SIGNAL
and
WARNING
are equal.
ALARM
On reaching the condition which triggers the event with action
ALARM
a bit in the status
register of the device will be set and the DC terminal will be switched off. Both conditions
can be read via USB from the status register.
Event
Meaning
Description
Range
UVD
U
nder
V
oltage
D
etection
Triggers an event if the voltage falls below the defined
threshold.
0 V...U
Nom
OVD
O
ver
V
oltage
D
etection
Triggers an event if the voltage exceeds the defined
threshold.
0 V...U
Nom
UCD
U
nder
C
urrent
D
etection
Triggers an event if the current falls below the defined
threshold.
0 A...I
Nom
OCD
O
ver
C
urrent
D
etection
Triggers an event if the current exceeds the defined
threshold.
0 A...I
Nom
OPD
O
ver
P
ower
D
etection
Triggers an event if the power exceeds the defined
threshold.
0 W...P
Nom
As soon as an event is set up with an action other than “NONE” while the DC terminal is still switched on, it can
immediately occur and switch the DC terminal off. It is thus recommended to configure events only while the DC
terminal is switched off.
