Jump Frequencies (N49 To N51); Continuing Operation Using Automatic Retry Attempts (N48) - YASKAWA VS mini J7 Series Instruction Manual

Jump Frequencies (n49 to n51)

This function allows the prohibition or "jumping" of critical frequencies
so that the motor can operate without resonance caused by the machine
system. This function is also used for dead band control. Setting the val-
ues to 0.00 Hz disables this function.
Set prohibited frequency 1 or 2 as follows:
Output Frequency
Operation is prohibited within the jump frequency ranges.
However, the motor will operate without jumping during acceleration/
deceleration.

Continuing Operation Using Automatic Retry Attempts (n48)

The Inverter can be set to restart and reset fault detection after a fault
occurs. The number of self-diagnosis and retry attempts can be set to up
to 10 in n48. The Inverter will automatically restart after the following
faults occur:
OC (overcurrent)
GF (ground fault)
OV (overvoltage)
The number of retry attempts is cleared to 0 in the following cases:
1. If no other fault occurs within 10 minutes after retry
2. When the FAULT RESET signal is ON after the fault is detected
3. When the power supply is turned OFF
60
n49
n50
n51
n51
Frequency Reference
n49 ≥ n50
If this condition is not satisfied,
the Inverter will display
one second and restore the
data to initial settings.
for