87
4. Parameter description
Parameter
• When P.65=2, once ‘over-current’ occurs, the voltage output is stopped. After a period of waiting
time (the set value of P.68), the retry is executed.
• When P.65=3, in case ‘over-voltage or over-current between P-N’ occurs, the voltage output is
stopped. After a period of waiting time (the set value of P.68), the retry is executed.
• When P.65=4, retry is effective. When alarm occurs, the voltage output is stopped. After a period of
waiting time (the set value of P.68), the retry is executed.
• When P.67=0, Retry is invalid.
• When P.67
≠
0, given continuous alarm occurs for times within the pre-defined upper limit of P.67,
retries will be valid. However, once the upper limit is exceeded, the retry is valid no more.
• For each time the retry occurs, the value of P.69 will be increased by 1 automatically, so the number
of P.69 read from the memory just indicates the number of retry accumulation time at alarm.
• If P.69 is rewritten with 0, the number of retry executed is erased.
Note: The inverter will retry until the return wait time of P.68 is past. Therefore, this function is selected, the
operator may cause danger, please be careful.
4.30 Brake Selection (P.71)
P.71 “Idling braking and linear braking selection”
Parameter
factory setting
Setting range
Remarks
71
1
0~1
---
<Setting>
• When P.71=0, it is now idling braking. The output of the inverter will terminate immediately after
pressing
STOP
RESET
, and the motor will be ‘racing’
• When P.71=1, it is now beeline brake. The output of the inverter will follow the
acceleration/deceleration curve after pressing
STOP
RESET
.
4.31 Carrier Frequency (P.72)
P.72 “Carrier frequency”
Parameter
Factory setting
Setting range
Remarks
72
5.0kHz
0.7~14.5kHz
---
<Setting>
• The higher the carrier frequency is, the lower the motor acoustic noise is. Unfortunately, greater
leakage current and larger noises generated by the inverter are resulted in.
• The higher the carrier frequency is, the more energy is dissipated, and the higher the temperature of
the inverter is.
• In case a mechanical resonance occurs in a system with the inverter, P.72 is helpful for improved
the performance just by adjusting its value.
