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© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
Instruction Manual
EL 3000 A Series
Date: 12-05-2011
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 di-
gital 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 distri-
bution 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
