Fuji Electric FRENIC-Ace series, Руководство пользователя

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5.3 Description of Function Codes
5-247
FU
NCT
IO
N
C
O
DE
S
Chap 5
d70 Speed control limiter
d70 specifies a limiter for the PI value output calculated in speed control sequence under “V/f control with speed
sensor” or “dynamic torque vector control with speed sensor.”
A PI value output is within the “slip frequency
× maximum torque (%)” in a normally controlled state.
If an abnormal state such as a temporary overload arises, the PI value output greatly fluctuates and it may take a
long time for the PI value output to return to the normal level. Limiting the PI value output with d70 suppresses such
abnormal operation.
• Data setting range: 0 to 100 (%) (assuming the maximum frequency as 100%)
d90 Magnetic flux level during deceleration under vector control for IM
d90 specifies the magnetic flux level to be applied during deceleration under vector control for Induction motor by
percentage of the rated motor magnetic flux (determined by P06/A20).
d90 data takes effect only when H71 = 1 (Deceleration Characteristics enabled) and F42/A14 = 6 (Vector control
for induction motor with speed sensor).
Increasing the d90 setting can reduce the deceleration time but increases the inverter output current and the motor
temperature rise. In applications repeating frequent start/stop drive, an overload may apply to the inverter or motor.
Adjust the d90 setting so that the inverter output current (RMS equivalent) comes to be smaller than the motor
rated current.
Use the default setting “150%” as long as there is no problem.
d99 Extended function 1
To enable the jogging operation “ JOG ” from communication, set bit 3=1 for this function.
Other bits than bit 3 of this function code are for manufacturers. Do not change these bits.
To change the d99 data, it is necessary to press the
+ / keys (simultaneous keying).