Fuji Electric FRENIC MEGA G2 Series - Page 488

5.3 Description of Function Codes 5.3.9 d codes (Applied functions 2)
5-304
Enabling an operation limiting function such as the torque limit and droop control will increase the deviation
caused by a huge gap between the reference speed and detected one. In this case, the inverter may trip
interpreting this situation as a PG error, depending on the running state. To avoid this incident, set the d23
data to “0” (Continue to run) to prevent the inverter from tripping even if any of those limiting functions is
activated.
d24
Zero speed control (Refer to F23)
Refer to the description of F23.
d25
ASR switching time (Refer to d01)
Refer to the description of A42.
d27, d28
Servo lock (Gain switching time, Gain 2) (Refer to J97)
Servo lock (Gain switching time, Gain 2) is described in detail in the Function code J97 section.
d29
Speed control 1 (Notch filter width) (Refer to d07)
Speed control 1 (Notch filter width) is described in detail in the Function code d07 section.
d32, d33
Speed limits / Over speed level 1 and 2 (Refer to H18)
Under speed control, the over speed detection levels are specified with 120% of these function codes.
The other hand, these function codes specifies the speed limit value under torque control.
Refer to the description of H18.
d35
Over speed detection level (Refer to H18)
d35 specifies the over speed detection level by percentage of the maximum frequency.
Overspeed level = Maximum frequency (F03/A01/b01/r01) x d35(%)
Setting d35 data to “999(factory default)” causes the inverter to issue an over speed alarm if either of the above
conditions are satisfied.
or
Overspeed detection level
600 Hz
Maximum frequency (F03/A01/b01/r01) x (d32 for forward rotation) x 120(%)
Maximum frequency (F03/A01/b01/r01) x (d33 for reverse rotation) x 120(%)
(Maximum frequency (F03/A01/b01/r01) + torque limiting (braking)（frequency rising limiter）H76) x 120(%)
Lowest level of the above