\\SUSI\Entwicklung\BLR_CX\doku\MB_EN_CX_03.doc Seite 3 von 8 27.01.05
6 Automatic display of failed Capacitors
Indication of either failed capacitor steps or unengaged outputs. Indication of e.g. “Cd 05” alternating with “Cd
09” indicates, that steps 5 and 9 are failing. “Alarm” (AL_ _) will be triggered synchronously. To reset any alarm
press button + and – for longer than 20 sec. “Cd 0” signals, that no step fails. Automatic control is active all the
time!
7 The number of switching
The number of switching operations per each contactor has made is shown in the display, e.g. “OC 4” for 2 sec.,
then “248”. This indicates, that contactor no. 4 has completed 248 switching operations. Other contactors can be
selected by using the +/- buttons. Only every 10 switching operations the micro processor stores the data. The
stored data of all steps can be cancelled by depressing the +/- buttons together for a time longer than 20 sec.
Automatic control is active all the time!
8 Indication of Step Sizes
The value indicated on display is proportional to the step size, but not calculated in kvar, as far c.t.-ratio is
unknown. It will be displayed e.g. “CC 10” for the 10th step, followed by 2 numbers e.g. “L 74” and “F 84”.
Value “F” stands for the first sensed capacitor size during commissioning and “L” for the last value after, let´s say
several months or years. This is to recognize loss of capacity, if any. If the selected threshold level in pos. 0, will be
decreased due to failed capacitor or blown up fuses, the regulator eliminates this step from control procedure and
triggers alarm “AL”, shown in display. The data per each step may be polled off by means of either + or – button.
To reset the stored data enables by pushing both buttons + and – together for longer than 20 sec. The regulator
starts to come to know each step from the very beginning. Automatic mode is still active in the background.
CX-regulators fitted with option “M” (Indication of energy data) displays the sensed capacitor sizes in real kvar at
correct c.t. setting (see page 5)
.
9 Selecting Mode of Alarm
Selection by means of the push buttons +/-.
Any alarm function is deactivated in selecting “A__0”, no alarm indication will appear. Automatic reset of any
triggered alarm if, e.g. the regulator is able to achieve the preset power factor target again or after any change of
switching direction, up/down, in selecting “A__1”.
Once a triggered alarm will be stored until any manual confirmation in selecting “A__2”.
Reset possible with “A__3”, excludingly.
To reset any triggered alarm, caused either by control procedure (triggered by passing 75 times preset switching
time delay) or by temperature, enables in selecting “A__3” and pushing button +longer than 5 sec. It will be
confirmed by “ArES” in display. Afterwards select requested alarm mode again. Any triggered alarm, caused by
failed steps, is ressettable in position 6of the multifunction switch (H3), excludingly,
at preset alarm mode “A__2”.
(“AL” will be displayed in case of any triggered alarm).
ASelection of a 2nd Power Factor Target
Option “L” 2nd p.f. target will be activated by signal voltage 150-240 V AC on terminals NT/NT1.
Option “LT” 2nd p.f. target will be activated automatically in case of temperature will exceed 57° C
BSelection of an asymmetrical Switching Time Delay.
Selectable range of an asymmetric factor: 1…99 by means of pushing the button + or -. Displaying e.g. “Y_10”
multiplies the preselected switching time (pos. 2) with factor 10 for disconnecting steps (rapid in, slow out; slow in,
rapid out on request). Preset factor ex word = “1”, means symmetrical switching time delay for both directions.
CSelection of a Lock Time at each Change of Switching Direction up/down
An included variable load reversal lock-out time is activated when switching direction changes from “up” to
“down” or conversely. Displaying e.g. “L_30” means a lock time of 30 sec. becomes effective. This lock time will
be added to the preset switching time delay ex pos. 2. This enables to reduce the switching operations at rapid
changing loads. Selectable range of lock time = 1…254 sec.;
preset time ex work: 30 sec.
DSelection of C.T.Ratio (only adjustable with option “M”)
Display indicates “_not”
ESelection of V.T. Ratio (only adjustable with option “M”)
Display indicate “_not”
FSelection of Switching Program by means of pushing button + or -.
After any amendment re-energize the regulator (brief interruption of supply voltage)
Displaying “Auto”: Fully automatic recognition of each capacitor size without fixed program intelligent selection
of the suitable capacitor to achieve the preset power factor target with the minimum of switching operations.
2-phase connection L2/L3.
Displaying “1 1 1 1”: Fully automatic recognition of each capacitor size. Linear switching program up 1….12 and
down 12….0 means FILO/LIFO (first in last out / last in first out). 2-phase connection L2/L3.
Displaying “Eaut”: identical to “Auto”, however 1-phase connection L1/N
Displaying “E111”: identical to “1111”, however 1-phase connection L1/N
Preset ex work: “Auto”
