Instruction manual

6. Programming Features
125
Search Operation Voltage Limit (n144)
Limits the range where the voltage is controlled. The constant is set in
% for 200-V/400-V Inverters. The search operation is not performed
when n144 is set to 0.
Search Operation Voltage Steps (n145, n146)
Constants n145 and n146 set the change in voltage for one cycle of the
search operation. For 200 V Class Inverters, set the values as percent-
ages of 200 V. For 400 V Class Inverters, set the values as percentages
of 400 V. Increase the value and the changes in the rotation speed will
also increase.
For 200 V Class Inverters, the range of the change in voltage is deter-
mined from the 100% and 5% settings for 200 V. For 400 V Class
Inverters, the range of the change in voltage is determined from the
100% and 5% settings for 400 V. The values calculated by linear inter-
polation are used for voltages other than these.
Constant
No.
Name Unit Setting
Range
Factory
Setting
n144 Search Operation Voltage
Limit
1% 0 to 100 0
Constant
No.
Name Unit Setting
Range
Factory
Setting
n145 Search Operation Voltage
Step at 100%
0.1% 0.1 to 10.0 0.5
n146 Search Operation Voltage
Step at 5%
0.1% 0.1 to 10.0 0.2
n143 Power Average Time 1 = 24
ms
1 to 200 1 (24 ms)
Voltage Fluctuation
Output Voltage