Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
© Woodward Page 129/226
Proceed with final synchronizer setup.
Final Synchronizer Setup
1. Open the circuit breaker to disconnect the generator from the bus.
2. Close the isoch/droop switch in series with the “CB Aux” contact input to terminal 70 of the DSLC-2
control. If such a switch is not installed, verify that the connection to terminal 70 is restored.
3. Select Menu 1 and set the Dead bus closure (parameter 7555) setpoint to “Enabled” or “Disabled” as de-
sired.
4. Set close attempts (parameter 3418) to the desired number of times the synchronizer should attempt to
close the circuit breaker. Set to “1” if only one close attempt should be made.
5. Set Reclose delay (parameter 4534) to the desired interval between close attempts. This should be great-
er than the time required to recharge the circuit breaker arming mechanism.
6. If an alarm is desired when the maximum close attempts has been reached, set sync reclose alarm to
“Enabled”.
7. Set the Synchronizer timeout (parameter 3063) to the maximum number of seconds the synchronizer
should attempt to achieve synchronization. Set to “0” for no timeout.
8. If an alarm is desired when the sync timeout interval expires, set the Synchronizer timeout alarm
(parameter 7557) setpoint to “Enabled”.
9. If it is desired to automatically attempt to reclose the circuit breaker on loss of synchronization (CB Aux
opens after a successful closure has been accomplished), set the Auto re-synchronize (parameter 7514)
setpoint to “Enabled”. If set to “Disabled”, the synchronizer will enter an auto-off mode when synchro-
nization is obtained. It will be necessary to set the synchronizer mode switch to “Off” and back to the
desired operating mode to restart the synchronizer.
This completes the DSLC-2 control synchronizer setup.
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