9492600990 10-17
DECS-150 Grid Code
Auxiliary Input
To use the DECS-150 auxiliary input as the Q(PF) adjustment source, make the following settings:
• On the Auxiliary Input screen, set the Input Function setting to Grid Code Input. Refer to the
Auxiliary Control section for details.
• On the Active Power Control screen, set the Adjust Source setting to Auxiliary Input.
Refer to the Auxiliary Control section for details on how the auxiliary voltage (Vaux) is calculated.
Vaux is multiplied by 0.01 and the value of the Q(PF) Gain setting:
(APC Adjust = Vaux x 0.01 x Q(PF) Gain).
Figure 10-20. Reactive Power Control, Q(PF) Screen
Reactive Power Control with Fixed Q – Q(Third Party)
BESTCOMSPlus Navigation Path: Settings Explorer, Grid Code Settings, Reactive Power Control,
Q(Third Party)
HMI Navigation Path: Settings, Operating Settings, Grid Code Settings, Reactive Power Control, Q Third
Party
This mode provides fixed reactive power output for instances where an external controller, outside of the
DECS-150, performs the reactive power control and feeds a reactive power setpoint to the DECS-150.
The PT1 time characteristic is applied in this mode, as it is in all the other modes.
Adjustment Sources
The Q(Third Party) setpoint may be adjusted by the DECS-150 auxiliary input or via remote
communication (Modbus
®
). For all adjustment sources, the value of the Q(Third Party) Gain setting is
applied to the value read from the selected input. Refer to the Modbus Communication section for more
information on adjusting the setpoint via remote communication.
Auxiliary Input
To use the DECS-150 auxiliary input as the Q(Third Party) adjustment source, make the following
settings:
• On the Auxiliary Input screen, set the Input Function setting to Grid Code Input. Refer to the
Auxiliary Control section for details.
• On the Active Power Control screen, set the Adjust Source setting to Auxiliary Input.
Refer to the Auxiliary Control section for details on how the auxiliary voltage (Vaux) is calculated.
Vaux is multiplied by 0.01 and the value of the Q(Third Party) Gain setting:
(APC Adjust = Vaux x 0.01 x Q(Third Party) Gain).
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