12.2 Control mode
The controller has 2 control modes:
Q Based on the actual state of charge of the battery (SOC control)
Q Based on the battery voltage (voltage control)
The use of the SOC control is strongly recommended because a longer battery life can be
expected by using it.
When SOC control is switched on the charge state of the battery is displayed in percent, with
Voltage control the charge state is displayed in volts. The following applies in addition:
Q If components are connected directly to the battery, the controller can only determine the SOC
correctly if it measures the battery currents with device-specific Steca current sensor PA HS400.
If it is not possible to measure the battery currents, the controller must be changed to Voltage
control.
Q The controller takes the battery temperature into account for accurate determination of the
charge completion voltage. To do this, the controller measures the room temperature using its
own internal temperature sensor and assumes that the battery is also at room temperature. If
the battery is located in a different room then the external temperature sensor Steca PA TS-S
(optional) should be used.
Q The voltage drop in the battery cables distorts the battery voltage measurement of the battery
and, thus, the actual charging voltage present at the battery. The cable compensation of the
controller compensates for this voltage drop. Additional sensors are not required. Cable com-
pensation is switched on in the factory settings.
Operation
Q Control mode: ‘Main menu’
‘Battery settings’ ‘Battery control mode’
Q Temperature sensor: ‘Main menu’
‘Battery settings’ ‘Temperature sensor Bat.’
Q Cable compensation: ‘Main menu’
‘Battery settings’ ‘Cable compensation’
To Next Page
Loading...
