SMA SC 500CP-10-JP - Manual (Page 51)

SMA Solar Technology AG 8 Power Control
User Manual SCCP-JP-BA-A4-en-12 51
5. Use the parameter PwrMonErrMod to select the desired inverter behavior in the absence of setpoint specifications
as follows:
6. If SubVal has been selected, enter the proxy values for normal feed-in operation and for operation outside of normal
feed-in operation, as follows:
7. In the parameter PwrMonErrTm configure the time lapse until recognition of the absence of setpoint specifications.
8. Confirm the parameter entry with [Save].
8.1.2.2 No Active Power Limitation: Off Mode
The feed-in power is limited to the parameter Pmax.
The parameter Pmax defines the Sunny Central power at the feed-in point and is adjusted to the local conditions during
commissioning. The parameter Pmax can only be changed when the device is in the operating state "Stop" and the
installer password has been entered.
8.1.2.3 Active Power Limitation with Setpoint Command via Modbus Protocol: WCtlCom
Mode
The setpoint for active power limitation is received by the Sunny Central via the Power Reducer Box or the Power Plant
Controller and then transmitted to the Sunny Central. If the Sunny Central has not received any signal for five minutes,
the error message will be displayed in the instantaneous value P-WModFailStt.
8.1.2.4 Active Power Limitation with Absolute Value: WCnst Mode
The active power limitation is entered as an absolute value via the parameter P-W.
The parameter P-W defines the active power to be fed in. The parameter P-W can be changed in feed-in operation. The
parameter P-W must not be greater than the parameter Pmax.
8.1.2.5 Active Power Limitation as a Percentage of Nominal Power: VArCnstNom Mode
The active power limitation is set as a percentage value via the parameter P-WNom. The percentage value refers to the
parameter Pmax.
The parameter P-WNom indicates what percentage of the maximum possible power is to be fed in. The parameter
P-WNom can be changed during feed-in operation.
Setting Description
LastVal If specified via communication: utilization of the last value received. In case of analog
setpoints: utilization of the last valid mean value.
SubVal Utilization of the configured proxy values. SMA recommends use of the proxy values when
setpoint specifications are effected via analog signals.
Parameters Description
P-WSubValRun Proxy value for active power limitation in feed-in operation
P-WSubVal Proxy value for active power limitation outside of feed-in operation