Description of parameters
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5
2.12.2 Synch
Reference
Use of P:Synch. Offset do not affect the error value that is shown in monitoring variable
“D7 Synch. Error”. Therefore you must give the reference for synchronization; usually
this reference is roughly the same as P:”Synch. Offset” value, depending on the system.
(3072 equals 180 degrees offset).
2.12.3 Synch
Kp
Island mode line sync gain. Init = 500.
2.12.4 Synch
Ti
Reserved (not in use)
2.12.5 Synch.Hysteresis
Window for closing the net circuit breaker. (3172 equals 180 degrees).
2.12.6 Contactor
Delay
In case no feedback is received from the shore contactor, this can be used to simulate a
feedback signal. That means that the control mode is changed after this time delay, after
the command to close NET contactor has been given.
2.12.7 Synch
Stop
Mode
Select operation after the drive has synchronised and received feedback from the shore
contactor.
0 = Stay Run
1 = Stop
5.13
Synch to shaft generator grid
P2.13.1
SG follower Ramp Time
103
This is the ramp time when the grid side AFE follows the frequency of the shaft
generator. This ramp time is activated when the frequency difference is below 0.10 Hz
between the shaft generator and the drive.
P2.13.2
SG Grid Phase Offset
1586
Gives offset to the shaft generator angle when the phase synchronisation is activated.
