Solare Datensysteme Solar-Log - Manual (Page 135)

135
Special functions
For each level, the input signal combination and a value for the power in % is entered.
Checking the box next to the digital inputs of the PM+ interface (D_IN_1 to D_IN_4) means that theses
inputs are supplied with 5V from pin1 to reduce to the percentage of the set in the box "Power in %".
Four levels are shown in the basic setting. The "+" sign can be used to extend the list by additional levels.
Procedure:
•
Select remote controlled.
•
Select the interface of the inverter that is to be reduced.
•
Enter the channel settings for power reduction according to the specifications and wiring .
•
Select options.
•
SAVE settings .
More Options
Closing relays at level 4
(only Solar-Log 1200 PM+ and 2000 PM+) .
By selecting this function the potential-free control relay for the Solar-Log2000 PM+ is closed when level 4
is activated.
•
The relay may be loaded with a maximum of 24 V DC and 5A.
•
A 230 V appliance must be connected via another load relay.
Please also refer to the additional information on relays in Page 65 of this installation manual.
Closing relay during power reduction (only Solar-Log 1200 PM+ and 2000 PM).
Select this option in order to signal any power reduction via the relay output on the Solar-Log 2000 PM+.
•
The relay may be loaded with a maximum of 24 V DC and 5A.
•
A 230 V appliance must be connected via another load relay.
Please also refer to the additional information on relays in Page 65 of this installation manual.
Max� change in power in %:
A jerky reduction or increase in active power could have a negative impact on inverters in the long-term.
The "max. change in power" field is used to specify how high the maximum percentage change in power is
per period of time (15 seconds).
This value refers to the power reduction but is also used when starting up the plant after a power reduc-
tion.
Note
The notifications per e-mail for active power reductions can be activated from the Con-
figuration | Notifications | PM menu.