Studer VarioString VS-120, Руководство пользователя

Страница: 40 / 64

Studer Innotec SA
VarioString
40 V 2.3 User manual
9.4.5.9.2 Conditions for a new cycle
A new battery cycle will be triggered if one or the other 2 conditions, defined by a period of time
during which the battery voltage is lower than a threshold, is met. These 2 voltages related to 2
durations are configurable. Usually a higher voltage is used for a longer duration and a lower voltage
for a shorter duration.
Voltage level 1 to start a new cycle {14029} (48.8 Vdc)
Time period under voltage level 1 to start a new cycle {14030} (30 min)
Voltage level 2 to start a new cycle {14031} (47.2 Vdc)
Time period under voltage level 2 to start a new cycle {14032} (2 sec)
9.4.5.9.3 Cycling restricted {14033} (yes)
The repetition of the charge cycles can be limited establishing the minimum time between each
cycle using parameter {14034}.
9.4.5.9.4 Minimal delay between cycles {14034} (1 hour)
Determines the minimum interval (time) between each cycle when parameter {14033} activates this function.
9.4.6 System {14037}
9.4.6.1 Block manual programming (DIP switch) {14174} (no)
See Basic Settings chap. 9.4.4.1.
9.4.6.2
Type of battery grounding {14040} (no control)
This parameter allows the VarioString to constantly verify the state of the battery grounding
connection, if desired. In the event of an error, the VarioString will turn on a LED indicator light (3). It
is possible to ground either of the battery terminals.
9.4.6.3
Configuration for VS-120 {14194}
9.4.6.3.1 Type of PV grounding {14041} (no control)
This parameter allows the VarioString to constantly verify the state of the PV grounding connection
during its use in series or parallel mode. In the event of an error, the VarioString will turn on a LED
indicator light (3). It is possible to ground either of the PV terminals.
9.4.6.3.2 Type of PV1 grounding {14175} (no control), Type of PV2 grounding {14042} (no control)
The same as the preceding parameter, but for the MPPT inputs PV1 and PV2 in independent mode
on the VarioString VS-120.
9.4.6.4
Type of MPPT algorithm {14180}
9.4.6.4.1 Type of MPP tracking algorithm PV {14043} (P&O)
This parameter allows setting the type of algorithm used by the VarioString to establish its operating
point in series or parallel cabling mode.
P&O: Maximum Power Point (MPP) search algorithm. This algorithm is fully automatic and searches
the MPP of your system.
OC ratio: With this mode, the VarioString makes an open circuit voltage measurement once every 5
minutes and fixes the working voltage at a point proportional to the measurement. The measurement
lasts 2 seconds.
Ratio of PV open circuit voltage {14045} (0.7)
This parameter fixes the operating point according to the measured open circuit voltage. The
If the parameter {14033} is activated and the interval parameter {14034} is set to 24h, there
will be only one charge cycle per day. In this case, if the conditions are met for a new cycle,
it will not take place until the next day and the charger will keep the battery at floating
voltage.