User manual

Page 35
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
EL 9000 T Series
3.4.4 Adjustment limits
Adjustment limits are only effective on the related set values, no matter if using manual adjust-
ment or remote control!
The limits settings could be locked by a PIN (see MENU, “Limits lock”)
Defaults are, that all set values (U, I, P, R) are adjustable from 0 to 102%.
This may be obstructive in some cases, especially for protection of ap-
plications against overcurrent. Therefore upper and lower limits for cur-
rent (I) and voltage (U) can be set which limit the range of the adjustable
set values.
For power (P) and resistance (R) only upper value limits can be set.
► How to congure the adjustment limits
1. On the main screen, tap to access the SETTINGS menu.
2. Tap on and then on to open the menu page for the adjustment limits.
3. In each case a pair of upper and lower limits for U/I or the upper limit for P/R is assigned to the rotary knobs
and can be adjusted. Tap another pair to switch the selection.
4. Accept the settings with .
The values can also be entered directly using the ten-key pad. This appears when tapping
touch area “Direct input”.
The adjustment limits are coupled to the set values. It means, that the upper limit may not be
set lower than the corresponding set value. Example: If you wish to set the upper limit for the
current (I-max) to 35 A while the set value of current is adjusted to 40 A, then the set value
would rst have to be reduced to 35 A or less, in order to enable setting I-max down to 35 A.
3.4.5 Changing the operating mode
In general, the manual operation of an EL 9000 T distinguishes between two operating modes: UIP and UIR.
With mode UIR selected, the resistance set value is adjustable to the one of U and I, while in UIP the power set
value replaces the resistance value. The resistance as adjustable set value is only available after activation of the
reistance mode (short: UIR) in the MENU (also see ).
► How to switch operation between UIP and UIR
1. Activate the resistance mode in the MENU. After leaving the menu again, the
areawhichwaslledgreenbeforeandshowedthesetandactualvaluesof
powernowislledwithanorange-brownandwillshowsetandactualvalues
of resistance.
2. Going back to UIP mode is done vice versa, by deactivating UIR mode in
theMENUagain.Thelowerleftareaisthenswitchedbacktogreenlland
power values are shown again.
Depending on the selection, a different value (U, P or R) is assigned to the left-hand
rotary knob while the right-hand knob is always assigned to the current (I).
Switching to UIR mode does not deactivate the set value of power.
It means, the adjusted power value is still in effect. During UIR
mode, the power set value can only be accessed and adjusted
in the MENU.
