Fuji Electric FRENIC-ECO, Instruction Manual

Page: 136 / 246

5-28
F07
F08
Acceleration Time 1
Deceleration Time 1
F07 specifies the acceleration time, the length of time the frequency increases from 0 Hz to the
maximum frequency. F08 specifies the deceleration time, the length of time the frequency
decreases from the maximum frequency down to 0 Hz.
• If you choose S-curve acceleration/deceleration or curvilinear acceleration/
deceleration in Acceleration/Deceleration Pattern (H07), the actual
acceleration/deceleration times are longer than the specified times. Refer to the
descriptions of H07 for details.
• If you specify an improperly long acceleration/deceleration time, the current limiting
function or the automatic deceleration function (regenerative bypass function) may
be activated, resulting in an actual acceleration/deceleration time longer than the
specified one.
F09
F37
Torque Boost
Load Selection/Auto Torque Boost/Auto Energy Saving Operation
F37 specifies V/f pattern, torque boost type, and auto energy saving operation for optimizing the
operation in accordance with the characteristics of the load. F09 specifies the type of torque
boost in order to provide sufficient starting torque.
Data for F37 V/f pattern Torque boost
Auto-energy
saving
Applicable load
0 Variable
torque load General purpose fans and
pumps
1
Torque boost
specified by
F09
Pumps require high
starting torque*
2
Constant
torque load
Auto-torque
boost
Disabled
Pumps require high start
torque (A motor may be
over-excited at no load.)
3 Variable
torque load General-purpose fans and
pumps
4
Torque boost
specified by
F09
Pumps require high start
torque*
5
Constant
torque load
Auto torque
boost
Enabled
Pumps require high start
torque (A motor may be
over-excited at no load.)
* If a required (load acceleration toque) is more than 50% of the linear torque, it is
recommended to apply the linear V/f pattern (factory default).