26
S&C Instruction Sheet 659-520
Resetting the PureWave SMS-250 System
To manually reset the storage-management system, the user can press the RESET but-
ton on the user interface. In addition, either of the following can be administered to
reset the PureWave SMS-250 system:
• HMI: On the PCS user interface, toggle the SMS CONTROL switch to the
SCADA
DISABLE
setting. Then, on the
Command-Control
HMI screen under the
System
Control
menu, click on the
Reset
radio button for the PureWave SMS-250 system
to reset.
• SCADA: The user can select the DNP Point 1 (Reset) to pulse on a request for the
PureWave SMS-250 system to reset.
Ready Utility Connected Run
• HMI: On the user interface, toggle the SMS CONTROL switch to the
SCADA
DISABLE setting
. On the
Command-Control
HMI screen, choose the desired control
mode and enter the power or vars value. This allows the PureWave SMS-250 system
to go to the
Utility Connected Run
state.
• SCADA: Select the desired power or vars control mode and pulse on its DNP Point
for the PureWave SMS-250 system to go the
Utility Connected Run
state.
Island Run Modes
The
Island Run
mode can be configured in three ways: automatic islanding, utility-
commanded islanding with closed transition return, and utility-commanded islanding
with open transition return. In addition, the
Island Ru
n mode can be tested through
the HMI or SCADA as described further below.
NOTICE
To run the
Island mode, the islanding panel must be installed .
Automatic Islanding:
In this mode, the PureWave SMS-250 system will command the
island circuit breaker open by closing the island circuit breaker open contact when it
sees a Utility Disturbance Monitor (UDM) overvoltage or a UDM undervoltage event,
or an overfrequency or underfrequency event for the time specified on the
Configura-
tion—Field Parameters
HMI screen. When the island circuit breaker feedback voltage
(24 V) goes away, indicating the island circuit breaker is open, the PureWave SMS-250
will run in the island mode providing power to the islanded load. When the utility
power returns and is at a normal voltage and frequency for 300 seconds (configurable
on the
Configuration—Field Parameters
HMI screen), the PureWave SMS-250 system
will synchronize with the utility and command the island circuit breaker closed. When
the island circuit breaker feedback voltage (24 V) returns, indicating that the island
circuit breaker is closed, the PureWave SMS-250 system will stop islanding.
NOTICE
The PureWave SMS-250 system open contact must be wired to open the island circuit
breaker .
The PureWave SMS-250 system close contact must be wired to close the island circuit
breaker .
Islanding circuit breaker feedback must be configured so that, when the island circuit
breaker is closed, there is voltage (24 Vdc), and when it is open, the voltage (24 Vdc)
is removed .
For this mode, the user must use the
Configuration—Field Parameters
HMI screen
and configure the following:
Islanding Enable
—Feature Enabled
Utility Voltage Feedback
—Feature Enabled
Island Breaker Feedback
—Feature Enabled
Operation
