User`s manual

222 • Vacon apfiff09 marine
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6
7.15.1 Run away load protection
Run away load protection is used to increase the generator torque limit in case when the speed of
the load is increasing above the defined frequency limit. Used in cases when upper system is
controlling generator torque limit and its needed to drive itself control situation when speed
increases too high.
Note! The maximum generator side torque limit is still limited by the General torque limit
parameter.
P2.15.7 Generator Torque limit increase speed level ID1547
The frequency limit at which the generator side torque limit is started to increased when
speed of the motor increases (over speed).
P2.15.8 Generator Torque limit increase high speed limit ID1548
The frequency level at which point the torque defined by the
added entirely to the final torque limit.
P2.15.9 Generator Torque limit increase added torque ID1549
When this parameter is set greater than zero the generator torque limit increases at
high speed is activated. This parameter defines the torque that is added to generator
torque limit, linearly starting from ID1547 to ID1548.
MIN
IN 1
IN 2
P MaxTorqLim
MULDIV
VALUE
MULTIP
DIVIS
V Output Frequency
SUB
IN 1
IN 2
P MaxTorqLim Hz
P TorqLimInc Hz
SUB
IN 1
IN 2
ABS
IN
MIN
IN 1
IN 2
P MaxTorqLim Hz
Add to Gen Tor Lim
Generator
Torque Limit
Output Frequency
TorqLimInc Hz
MaxTorqLim Hz
MaxTorqLim
Base Gen.
Torque Lim