BENSHAW Rsi S Series, Инструкция по эксплуатации

Страница: 187 / 398

Learning Advanced Features
175
Code Description
disconnected, the inverter generates a low voltage trip and blocks the
output. When the input power returns, the operation frequency and
the output voltage are increased to levels before the low voltage trip
occurred.
If the current increases above the value set at Cn.72, the voltage stops
increasing and the frequency decreases (t1 zone). If the current
decreases below the value set at Cn.72, the voltage increases again
and the frequency stops decelerating (t2 zone). When the normal
frequency and voltage are resumed, the speed search operation
accelerates the motor back to its frequency reference before the fault.
•
Starting with power-on: Set bit 4 to 1 and Ad.10 (Power-on Run) to 1
(Yes). If inverter input power is supplied with a run command applied,
the speed search operation will accelerate the motor up to the
frequency reference.
Cn.72 SS Sup-Current
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.
Cn.73 SS P/I-Gain,
Cn.75 SS Block Time
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).
Cn.72
t1 t2
Power input
Frequency
Voltage
Current
Multi-function
output or relay