Manual

© EA Elektro-Automatik in 2022, this information is subject to change without notice 7633200840_manual_elr_10000_2u_3kw_en_02
3.10.13 Battery test function
The battery test function is only a feature to test batteries. It has no battery management functionality.
It means, that there is no monitoring of single battery cells. Dead cells cannot be detected and in case
there is at least one dead cell in a battery when being discharged by the device, the battery could be
destroyed. External battery management hardware and software might be required.
The purpose of the battery test function is to discharge various battery types
in industrial product tests or laboratory applications.
Due to the nature of an electronic it can only work in sink mode, it means only
discharge the battery. In combination with a power supply, for example from
series PSI 10000, a dynamic charge & discharge can be achieved, like when
using the dynamic test modes of series PSB 10000. With a custom software
which integrates the source and the sink device under one GUI, so they work
in two-quadrant operation, any test scenario could be realized.
There is a choice of two modes: Static discharge (constant current) and Dynamic discharge.
In static discharge mode which by default runs in constant current (CC), the settings for power or resistance can also let
the device run the function in constant power (CP) or constant resistance (CR). Like with the normal operation of the device
the set values determine what regulation mode (CC, CP, CR) will be in effect. If, for example, CP operation is projected, the
set value of current should be set to maximum and resistance mode should be turned off, so that both don’t interfere. For a
projected CR operation it’s similar. Current and power should then be set to maximum.
For dynamic discharge mode there is also a power setting, but it cannot be used to run the dynamic battery test function
in pulsed power mode or at least the result would not be as expected. It’s recommended to always adjust the power value
according to the test parameters, so it doesn’t interfere with the pulsed current.
Graphical depiction of both discharging modes:
U, I
t
Discharge current
Star t
Stop
I
t
Max . Ah
Max . t
C C
RR
D
Discharge end voltage
U, I
t
Discharge current
Star t
Stop
Discharge end voltage
Ah
Ah
Static discharge Dynamic discharge
3.10.13 .1 Settings for the static discharge mode
The following parameters can be congured for the static discharge battery test function:
Value Range Description
Discharge current 0 A...I
Nom
Maximum discharge current (in Ampere)
Power limitation 0 W...P
Nom
Maximum discharge power (in Watt)
R mode on/off Enables the resistance mode for the test and unlocks the R value
Discharge resistance R
Min
...R
Max
Maximum discharge resistance in Ω
3.10.13 . 2 Settings for the dynamic discharge mode
The following parameters can be congured for the dynamic discharge battery test function:
Value Range Description
Discharge current 1 0 A...I
Nom
Upper resp. lower current setting for pulsed operation (the higher value of
both is automatically used as upper level)
Discharge current 2 0 A...I
Nom
Power limitation 0 W...P
Nom
Maximum discharge power (in Watt)
Time t1 1...36000 s t1 = Time for the upper level of the pulsed current (pulse)
t2 = Time for the lower level of the pulsed current (pause)
Time t2 1...36000 s