Panda fpControl
Page 22 - Chapter 2: Panda fpControl 27.5.20
not at all can be set in the Panel menu.
Fig. 2.3.3-6: Final overview pageFinal Overview Page:
Proceed to this menu by pressing the Start/Stop - Enter key
Overview Page 5 is the same in all display modes/languages.
2.3.3.1 Battery guard
Generator must be in Standby mode (remote control panel switched on; generator off)
When the battery monitor is activated in the Service menu, the generator starts automatically as soon as the
connected battery bank has reached the set minimum voltage. After the charging process (UIU) has ended, the
generator switches off (back to Standby).
Activation of the battery monitor as well as the storage of individual parameters for UIU charging/the connected
battery bank are performed by your Fischer Panda Service Point.
2.3.3.2 Functional description of the UIU charging process
Fig. 2.3.3.2-1: UIU charging curve of AGT-DC generator with FP Control
The UIU charging process: linearly increasing voltage – constant current – constant voltage
When the battery voltage has reached its minimal value U
min
when discharging, the battery charger starts
automatically, if the battery guard is activated. The UIU charging process begins:
Once the float time T
float
has elapsed, the generator stops automatically.
Phase »Limit U«: In the first phase, charging takes place with linearly increasing voltage This phase continues
until the charging current has reached its maximum value I
max
.
Phase »Limit I«: In the second phase, charging takes place at constant current. In this phase, the maximum
charging current I
max
flows to the battery.
Phase »Limit U« In the third phase, charging takes place at constant voltage U
n
(absorption voltage). During
this phase, the charging current drops to its minimum value I
min
.
Phase »T« Once the charging current has reached its minimum value I
min
, the battery voltage is
maintained at the U
n
(absorption voltage) value throughout a hysteresis time T. The charging
current continues to decrease during hysteresis.
Phase »Limit Ufloat« After hysteresis the battery charger switches from loading at constant voltage U
n
to float
voltage U
float
, thus ensuring that the fully charged condition of the battery is maintained
throughout T
float
.
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