GE Fuji Electric MICRO-SAVER AF-300, Startup Manual, Page: 108 / 127

8-6 8-7
8.2 Common Specifications
Item Explanation
Output fr
equency
Setting range
Maximum
frequency 25 to 400 Hz
Base frequency 25 to 400 Hz
Starting frequency 0.1 to 60.0 Hz
Carrier frequency 0.75 to 15k Hz
(Frequency may drop automatically to protect the drive running at 7kHz or over.)
Accuracy (Stability) Analog setting: ±2% of max freq. (at 25°C), temperature drift: ±0.2% of max freq. (at 25±10°C)
Keypad setting: ±0.01% of max freq. (at 25°C), temperature drift: ±0.01% of max freq. (at -10 to +50°C)
Setting resolution Analog setting: 1/1000 of max freq.
Keypad setting: 0.01 Hz (99.99 Hz or less), 0.1 Hz (100.0 to 400.0Hz)
Link setting: Selectable from 2 types
1/20000 of max freq. (ex. 0.003 Hz at 60 Hz, 0.006 Hz at 120 Hz, 0.02 Hz at 400 Hz)
0.01 Hz (fixed)
Contr
ol
Control method V/f control (Simplified torque-vector control)
Voltage/freq.
characteristic
200V
100V
class
Output voltage between 80 and 240V can be set at base frequency and at maximum.
AVR control can be turned ON or OFF.
Desired 1 point on non-linear V/f curve: 0 to 240V, 0 to 400Hz can be set.
400V
class
Output voltage between 160 and 500V at base frequency and at maximum output frequency
(common spec).
AVR control can be turned ON or OFF.
Desired 1 point on non-linear V/f curve: 0 to 500V, 0 to 400 Hz can be set.
Torque boost Auto torque boost (constant torque load)
Manual torque boost (Constant torque load or variable torque load can be selected.)
Starting torque 150% or over (Auto torque boost in 5 Hz operation)
Start/Stop Keypad operation: Start and stop with RUN/STOP keys
External signal: FWD-stop (REV-stop) [3-wire operation possible],
(Digital input) coast-to-stop command, external alarm, alarm reset, etc.
Timer operation: Stop after elapse of the time set with the keypad.
Link operation: Communication via RS485 (option)
Frequency setting
(Analog input)
(Multistep freq. setting)
(Link operation)
Can be set with UP or DOWN key.
Can be set with built-in potentiometer.
Can be set with variable resistor (External potentiometer: 1 to 5kΩ1/2W)
0 to +10 Vdc (+5 Vdc) (+5V: by changing the setting of analog input gain (200%))
+1 to +5 Vdc (adjustable by bias or analog input gain)
4 to 20mA dc
Multistep speed operation:
Selectable from 8 steps by 3-bit external signal
Can be set with communication via RS485 (option)
(Freq. setting change) Two types of freq. settings can be switched with an external signal (digital input).
(Freq. aux. setting) Built-in potentiometer, terminal 12 input, or terminal C1 input can be selected to add the frequency.
(Inverse operation) Possible to switch (0 to +10 Vdc)/(0 to 100%) to (+10 to 0 Vdc)/(0 to 100%) with an external signal.
Possible to switch (4 to 20mA dc)/(0 to 100%) to (20 to 4mA dc)/(0 to 100%) with an external signal.
Acceleration/
deceleration time
Changeable with the range from 0.00 to 3600s. (Two times each for acceleration and deceleration can
be set internally.)
Acceleration and deceleration pattern can be selected from 4 kinds: Linear, S-curve (weak), S-curve
(strong), Non-linear (Max. constant output).
DC injection braking Starting frequency: 0.0 to 60.0 Hz, Braking time: 0.0 to 30.0s, Braking level: 5 to 100% of rated current
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