User Manual

Page 47
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PSB 9000 2.5 kW Series
3.5.4 Adjustment limits
Adjustmentlimitsareonlye󰀨ectiveontherelatedsetvalues,nomatterifusingmanualadjust-
ment or remote control setting!
Defaults are that all set values (U, I, P, R) are adjustable from 0 to 102%.
The full range may be obstructive in some cases, especially for pro-
tection of applications against overvoltage. Therefore upper and lower
limits for current (I) and voltage (U) can be set separately, which then
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 the arrows to select “5. Limits Src” or “6. Limits Sink”.
3. In each case a pair of upper and lower limits for U/I or the upper limit for P/R are assigned to the rotary knobs
and can be adjusted. Tap the selection areas toselectadi󰀨erentsetofparameters.
4. Accept the settings with .
The set values can be entered directly using the ten-key pad. This appears when the touch area
“Direct Input” is tapped (bottom centre)
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 limit for the power set
value (P-max) to 2000 W while the currently adjusted power set value is 2500 W, then the set
value rst would have to be reduced to 2000 W or less, in order to set P-max down to 2000 W.
3.5.5 Changing the operating mode
In general, the manual operation of a PSB 9000 distinguishes between two or three operating modes, U/I and
U/P and U/R, which are tied to set value input using the rotary knobs or ten-key pad. This assignment must be
changed if one of the three or four set values is to be adjusted which is currently not assigned to any of the knobs.
► How to change the operating mode (two options)
1. Unless the device is in remote control or the panel is locked, you can switch the
operationanytime.Taponthedepictionoftheright-handknob(seeguretothe
right) to change its assignment between I, 2x P and 2x R (if resistance mode is
activated), which is then displayed accordingly.
2. Directlytaponthecolouredareaswiththesetvalues,likeshowninthegureto
the right. The physical unit next to the set value, when inverted, indicates the as-
signmenttotheknob.IntheexampleinthegureithasUandP(sink)assigned,
which means U/P mode.
Dependingontheselectiontherightrotaryknobwillbeassigneddi󰀨erentsettingvalues,
the left knob is always assigned to the voltage.
n order to avoid constant changing of the assignments it’s possible, e. g. with selection U/I being
active, to change the other value P by direct input, which can be accessed by tapping the small
ten-key pad symbol. See section 3.5.6.
The actual operating mode, which is only indicated while the DC terminal is switched on, solely depends only on
the set values. For more information see section „3.3. Operating modes“.