Synch-Check; Isolated Operation; Closing The Cb Without Synchronization (Dead Bus Start); Led "Gen Cb - On" Flashes - Woodward SPM-D2-10 Manual

Manual 37615C

Synch-Check

The controller can be utilized as a Synch-check module. Control functions are not performed. The "CB close" re-
lay remains energized as long as the following conditions are met:
 The voltage differential is within the configured limit
(screen "synchronization dV
 The frequency differential is within the configured limit
(screens "synchronization df
 The phase angle is within the configured limit
(screen "Slip synchroniz. Max phase")
 The input "Reply: CB is open" is energized
 The parameter "Terminal 6" is configured to "Enable control"
 Terminal 6 is not energized (the control is disabled)
 Terminal 5 "Enable isolated operation / dead bus start" is energized
 Terminal 3"Enable CB" is energized
The synchronization time monitoring must be disabled.

Isolated Operation

Isolated operation is only possible if the discrete input "Release isolated operation / dead bus start" (terminal 5) is
energized. To enable the frequency controller, the parameter "frequency controller in isolated operation" must be
configured as "ON". The voltage controller is only enabled if the parameter "voltage controller in isolated opera-
tion" is configured as "ON". Once the generator voltage and frequency have been adjusted to the configured set
point values, the GCB will be closed.

Closing the CB Without Synchronization (Dead Bus Start)

The controller will issue a connect command for the power circuit breaker without synchronization if the follow-
ing conditions are met:
 The unit is in the automatic mode (LED "Automatic" is illuminated)
 The parameter "Gen. circ.break. Dead bus op." has been configured as "ON"
 The bus bar is not energized (V
 The generator voltage and frequency are within the configured limits
 The discrete input "Enable isolated operation / dead bus start" (terminal 5) is energized t
 The discrete input "Enable CB" (terminal 3) is energized
 The discrete input "Reply: CB is open" (terminal 4) is energized

LED "Gen CB - ON" Flashes

LED "Gen CB - ON" flashes: The controller has detected an incorrect signal state on terminal 4 "Reply: CB is
open".
Possible faults:
 Terminal 4 is de-energized, signaling that the circuit breaker is closed and the generator and mains/bus bar
voltage are not synchronous.
If the LED is flashing, verify that terminal 4 is wired correctly. Terminal 4 will be de-energized when the power
circuit breaker is closed if the wiring is correct.
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SPM-D2-10 - Synchronizing Unit
© Woodward