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© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
Instruction Manual
EL 3000 A Series
Date: 05-30-2017
6.9 Control locations and priorities
Control locations are the locations from where the device
is controlled. This can be at the device (manual control),
via the analogue interface (external control) or via a digital
interface card (remote control). In order to prevent the
user from accessing the device from two locations at once
there are priorities. Following applies:
The analogue interface has the highest priority, the digital
interface the second highest one and the manual control
the lowest one. It means, that if the device was set to re-
mote control, modes and set values can‘t be set with the
switches and rotary knobs anymore. If the device would
be switched to external control while remote control is
active, the remote control status would be reset and the
device would only be controllable via the analogue inputs.
In order to report this to a software running on a PC, still
trying to access and control the device, the control loca-
tion is internally set to „local“. In „local“ status the device
can only be read (i.e. monitored) by the PC.
6.10 Series and parallel connection
Parallel connection of multiple loads is possible, but it is
not explicitely supported. That means, there is no auto-
matic distribution of the current at parallel connection. The
user has to take care of the correct control of the devices.
When using parallel connection, the symmectric distribu-
tion is achieved by adjusting the same set values for U,I,P
and R at any device via the control panel or the interfaces
(digital or analogue).
Attention! Series connection is not allowed! The
devices could be damaged
.
Handling the device
Figure 13. Battery test operation in current control (CC) mode
7.
Device configuration
7.1 The setup menu
The setup menu can only be activated by the selector
Level(3)
, except during remote control. While the load is
in setup, no normal load operation is possible.
The display shows a certain number of parameters,
depending on which interface card is installed. The pa-
rameters are selected by knob
Selection(5)
and changed
with knob
Setting(6)
. Two small triangles on the right
side of the display indicate that multiple parameters are
available. The display furthermore shows the type string
of the installed card in the first line, for example
IF-U1
, if
one is equipped:
Figure 14
The second line subsequently shows all available param-
eters which are selected by
Selection(5)
. The number
of parameters varies depending if an interface card is
equipped or not.
There are following settings:
Trigger mode
Possible settings:
internal, external
Default setting:
internal
Belongs to: Device
Explanation: defines, if the trigger signal for the Level A/B
operation, which effects the change between A and B, is
automatically generated by the device (
internal
) or if it‘s
put in by the trigger input (
external
).
Keep set values
Possible settings:
yes
,
no
Default setting:
no
Belongs to: Device
Explanation:
yes
defines, that the set values which are
adjusted by the user are kept when switching the regu-
lation mode (also see „6.6 Preselecting the regulation
mode“), while
no
defines, that the set values are always
reset to default values when switching.
