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Using the power supply
Overcurrent supervision
I>
= { I<... I
}
Nom
Ti>
= { 0...99:59 h}
The overcurrent error is signalled after the response time
if the actual value of the current falls below the adjusted overcur-
rent limit. The error notification vanishes if the actual current has
exceeded the threshold again for the time
rent error is suppressed for T0 = 100 ms after the output was
switched on.
I>
Alarm: Overcurrent
This error shuts down the power output. An alarm has to be ac-
knowledged, before the power output can be switched on again.
I>
Warning: Overcurrent
The error is notified and remains until it is acknowledged and not
persistent anymore.
I>
Signal: Overcurrent
The optional, analog interface IF-A1 can signalise an overcurrent
or undercurrent at one of the digital outputs.
56
Date: 02-05-2016
7.6.3 Step response supervision
The menu page
pervision circuits for the dynamic and static comparison of actual
value and set value.
The settling process of the power supply is determined by the
Default:
I
Nom
load. After a set value has changed, a certain time elapses until
the desired value is put to the power output. For instance, it can
last some seconds for the voltage to go down from 100% to 0 V at
Default:
100 ms
no-load operation, because the output capacitors need a certain
time to discharge.
Ti>,
Supervision of a step response
The adjusted set value is compared with the measured actual
value. If there is a difference between them and this difference
Ti>. This overcur-
is greater than the tolerance, the supervision will initiate an error
after the settling time
Step response +
Step response
Step response:
Us→Uo
Supervision of the deviance between set
value and actual value of voltage
Is→Io
Supervision of the deviance between set
value and actual value of current
Supervise
NO
Supervision is inactive
Signal
Supervision reports a signal
Warning
Supervision reports a warning
Alarm
Supervision reports a alarm
dyn. ∆
= ±8.00 V
Allowed tolerance for the voltage
= ±5.00 A
Allowed tolerance for the current
Tsr. See figure below.
rise time
Tsr = {0...99:59 h}
fall time
Tsf = {0...99:59 h}
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
lets you configure the su-
Default:
U→Uo
Default:
NO
Default:
10%
Default:
100 ms
Default:
2 s
Operating Guide
PSI 8000 T Series
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