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Handling the device
6.2
Operating elements
Mains switch Power (1)
Is used to switch the device on or off.
Selector Mode (2)
Is used to preselect the regulation
mode in which the device shall work.
The different regulation modes effect
each other, if nominal values of the
device are reached and then limited.
This can, for example, lead to a dominance of the constant
power control (CP), even if the constant current control (CC)
is set as active mode. The currently active regulation mode
is indicated in the display. More about the different regulation
modes in section „6.6 Select the regulation mode".
Following regulation modes are selectable:
CC
Constant current regulation
CV
Constant voltage regulation
CP
Constant power regulation
CR
Constant resistance regulation in range 1*
10R
CR
Constant resistance regulation in range 2*
400R
*the shown range values are examples
The switchover of the regulation mode switches the load input
off and the set value that is related to the currently chosen
regulation mode is addressed for adjustment (arrow in front
of the value). Other set values can also be accessed and
adjusted in the described manner.
Selector Level Control (3)
Is used to select the operation mode
between normal operation mode (A
and B), pulsed mode (A/B), battery test
mode or setup. Both, A and B use two
sets of set values. That means, that you
can adjust different set values for U, I,
P etc. for A than for B. The set values are kept until they
are changed. When selecting another regulation mode with
Mode(2) they will be reset to certain default values, if the
setting
Keep set values
is set to
configuration"). Activating the selector Level Control(3)
switches the load input off, except if it's changed from A->B
resp. B->A, because this is used to manually switch between
the two levels.
New since firmware 4.01: the most recent set values are
stored inside the unit when the unit is switched off or at mains
undervoltage (power fail), and are restored after switching
it on again, if the setting
chosen.
© 2008, Elektro-Automatik GmbH & Co. KG
no
(see more in „7. Device
Keep set values = yes
has been
Explanation of the selector positions:
A
Switches to the set values of Level A. These va-
lues become instantly active and can be changed
now.
B
Switches to the set values of Level B. These va-
lues become instantly active and can be changed
now.
A/B
Switches the load offline and activates the pulsed
mode (frequency controlled, automatic chan-
geover between level A and B).
Battery
Switches the load offline and activates the battery
test mode.
Setup
Switches the load offline and activates the setup
menu. Here the device and the interface card (if
equipped) are configured.
More about the operation modes on section „6.7 Usage of
Level A and B".
Pushbutton Input on/off (4)
This button is used to activate or deactivate the
load operation.
In battery test mode, the time counting is also hal-
ted if the button is pressed and the load is set to
„offline". Or it is continued if it is set to „online".
The activation of the load operation can be inhibited by
certain reasons. For example, if an overvoltage or another
error is persistent or the load is remotely controlled by the
analogue or digital interface (interface card).
New since firmware 3.01: it is also used to acknowledge
the alarm indication in the display. By pushing the button, the
indicated error is cleared (as long as no alarm is still active)
and the button can be used as normal.
New since firmware 3.01: in remote operation, i.e. control
via a digital interface card, the button can be used to forcibly
reset from remote operation by pressing >s.
Rotary encoder Selection (5)
This rotary encoder has no end stop. With every
position Selection(5) selects another element
in the display resp. another parameter in the
setup menu. An arrow (->)is placed in front of
the selected element/parameter.
The selection order is, when rotating clockwise,
top-bottom-right-bottom. That means, if the arrow is pointing
to the voltage set value it will be moved to the set value for
current and then to the power set value etc., when rotating
clockwise.
Counter-clockwise rotation moves the arrow in reversed
order.
In level A/B mode or in the setup menu are multiple menu
„pages" selectable. This is indicated by two little triangles
at the right side of the display, pointing up and down. If all
pages and menu elements are through, the navigation cycles
to the first resp. to the last page .
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