Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
Page 64/226 © Woodward
Enables or disables the synchronizer function after achieving syn-
chronization. Synchronization is assumed to have been achieved
if one Reclose delay time interval passes with the “CB Aux” con-
tact closed.
Disabled: If this setpoint is set to disabled, the synchronizer is set
to auto-off mode after synchronizing. Has no effect on the control.
Enabled: If the “CB Aux” contact opens and an operating mode is
selected (Run, Check or Permissive), the synchronizer will auto-
matically restart in the selected operating mode. On restart, the
synch timeout timer and close attempts count are reset to their
The maximum number of breaker closing attempts if the Reclose
limit alarm (parameter 7556) is “Enabled”. If “Disabled” this para-
meter is disregarded. See chapter 4, “Synchronizer Description”,
for close command information.
Enables or disables the alarm generated when reaching the max-
imum close attempts.
Is the number of seconds between attempts to close the circuit
breaker. If the “CB Aux” contact remains closed for one reclose
delay interval, synchronization is assumed to have occurred. If the
“CB Aux” contact opens during the reclose delay interval, it is
considered a failed closed attempt. The DSLC-2 control will re-
main in the selected operating mode (run, check or permissive)
during the reclose delay interval.
2 Disabled /
Enabled
Disabled This setting enables or disables the alarm generated by exceed-
ing the synch timeout interval without achieving synchronization.
This is the interval over which the synchronizer will attempt to
achieve synchronization. The interval begins when generator vol-
tage is in operating range and either the run or permissive mode
is activated. Failure to get a “CB Aux” contact closure within the
specified time will result in a synch timeout alarm. The synchro-
nizer must be set to “Off” mode to clear the interval timer and
The slope of the ramp is used to alter the rate at which the con-
troller modifies the setpoint value. The greater the value, the fast-
Table 3-10: Parameter – synchronizer
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