Learning Advanced Features
• Starting with power-on: Set bit 4 to 1 and Ad.10 (Power-on Run) to
1 (Yes). If inverter input power is supplied while the inverter operation
command is on, the speed search operation will accelerate the motor
up to the frequency reference.
The amount of current flow is controlled during speed search operation
based on the motor’s rated current. If Cn.70 (SS mode) is set to 1 (Flying
Start-2), this code is not visible.
The P/I gain of the speed search controller can be adjusted. If Cn.70 (SS
Mode) is set to 1 (Flying Start-2), different factory defaults based on
motor capacity are used and defined in dr.14 (Motor Capacity).
• If operated within the rated output, the S100 series inverter is designed to withstand
instantaneous power interruptions within 15 ms and maintain normal operation. Based on the
rated heavy load current, safe operation during an instantaneous power interruption is
guaranteed for 200V and 400V inverters (whose rated input voltages are 200-230 VAC and
380-460 VAC respectively).
• The DC voltage inside the inverter may vary depending on the output load. If the power
interruption time is longer than 15 ms, a low voltage trip may occur.
When operating in sensorless II mode while the starting load is in free-run, the speed search
function (for general acceleration) must be set for smooth operation. If the speed search function
is not set, an overcurrent trip or overload trip may occur.
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