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Acknowledging Alarms And Warnings; The Function Manager - Elektro-Automatik PSI 8000 T Betriebsanleitung

Dc laboratory power supply
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Using the power supply
An alarm will shut down the output and has to be acknowledged
before the output can be switched on again (also see section
„6.14 Acknowledging alarms and warnings").
A warning remains in display as long as it is not acknowledged
and can temporarily switch off the power output, if „auto ON" has
been activated for a particular error.
A signal is only displayed and only as long as the cause of the
error is persistent. If more than one signal is notified, they will
cycle in the display in a 2 s interval.

6.14 Acknowledging alarms and warnings

You can acknowledge alarms and warnings with the
ACK
button.
If you acknowledge a warning with this button while it still per-
sists, it is turned into a signal and displayed furthermore. Else it
is deleted and not displayed anymore.

6.15 The function manager

The function manager is used to create functions which can con-
trol the unit automatically. The user can build curves of set values
after the function f(U, I, ∆t) with it. The function manager sets the
set values in an interval of 2 ms. This means, that only times for
∆t of a multiple of 2 ms can be set, for instance 50 ms. If voltage
or current changes between two points, a ramp which consists
of a certain number of steps (∆t : 2 ms, results in 25 steps for the
example above) is built.
The function manager controls the power supply and puts the
set values, which have been configured in the function. The
actual progression of the output values is however determined
by the load.
Overview of the function manager display:
Figure 5
48
Date: 02-05-2016
Explanation of the used terms:
Function = the function consists of up to 5 linked sequence head-
ers (starts in menu at
Setup
up to five differently configurable sequences.
Function layout = the configurations in the function lay-
out are used by the function manager to set the operation
(U/I/P or U/I/R) mode for the power supply. Furthermore, the
repetition rate of the function and the arbitrary order of the se-
quences are set here. In dependency of the function layout the
function manager processes the next sequence after the previous
one has been processed and uses the settings from the sequence
control of the next sequence.
Sequence = consists of the sequence control and 10 sequence
points. If the function manager is going to process a sequence,
it first of all sets the parameters given in the sequence control.
The 10 sequence points are set consecutively and the whole pro-
cess is repeated as often as the repetition rate for the particular
sequence is set to.
Sequence control (
Sequence
tion rate of the sequence and the maximum set value of power
during the processing of the sequence, as well as internal resist-
ance (optionally, has to be unlocked)
Sequence point = a sequence always consists of 10 sequence
points. The points are processed (=set) consecutively by the
function manager from point 0 to point 9. The definition of the
sequence point determines, which set values for voltage and
current have to be reached after the given time ∆t. This enables
the user to create step functions by setting the time to 0 ms or
2 ms, as well as ramps with times from 4 ms to 99 h 99 m. A time
value of 0 ms is settable, but results in a real time value of 2 ms,
because set values are only set in 2 ms steps.
Additionally to the function itself you can set up and use the
supervision circuits in the profiles. The function manager can
also be controlled via the communication with the interface cards
with one additional feature: you can set a stop point at which the
function shall stop.
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
function), which can consist of
control) = defines the repeti-
Operating Guide
PSI 8000 T Series

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