BENSHAW RSi SG Series, Инструкция по эксплуатации

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Chapter 6 - Parameter Description [AFN]
6-28
AFN-22: Restart after Instantaneous Power Failure
AFN-23: Speed Search
This function is used to permit automatic restarting into
a spinning motor after an Instantaneous Power Failure.
When AFN-22 is set to “yes”, the Speed Search
function is activated regardless of FUN-20 (Start
Mode) setting. AFN-20 (Power On Run) must also be
set to “yes” and the run command active (Fx closed) to
perform the Speed Search Flying Start. See also AFN-
27, Flying Percentage and AFN-46, Inertia Rate.
Speed Search synchronizes the drive output (Voltage,
Frequency, and Direction) to that of the spinning
motor. This is accomplished by sweeping the output
frequency from the reference frequency down while
increasing the output voltage from zero up.
Note: Speed search during Acceleration can also be
independently activated by setting FUN-20 [Start
Mode] to “Flying Start”.
Speed Search Operation
AFN-24: Auto Fault Reset
AFN-25: Number of Auto Retry
AFN-26: Delay Time Before Auto Retry
When AFN-24 is set to “yes” the drive has the ability
to automatically reset itself after a fault occurs. The
drive will reset itself up to the number of times set in
AFN-25. The drive will wait the amount of time set in
AFN-26 after a fault before attempting a restart. The
motor may be coasting when the restart occurs. To
catch the spinning load, use the speed search function,
AFN-22.
Some faults cannot be automatically reset. These
include Low Voltage (LV) trip, Inverter Disable (BX)
and OC-2 Output Short circuit.
Input Power
Time
Motor Speed
Time
Output Frequency
Output Voltage
Time
Time
Input Power loss
AFN ► IPF Mode
22 No
Factory Default: No
AFN ► estimated SS
23
Factory Default: estimated SS
AFN ► Retry Mode
24 No
AFN ► Retry number
25 0
AFN ► Retry delay
26 1.0 sec