Fuji Electric FRENIC MEGA G2 Series - Page 530

5.3 Description of Function Codes 5.3.9 d codes (Applied functions 2)
5-346
 Speed multiplying factor safety factor
If using the motor with a frequency higher than the base frequency, the motor will run with fixed output characteristics,
and therefore the output torque will decrease.
The maximum frequency at which the output torque can rise is calculated as the torque reduction characteristic
equal to or higher than the base frequency,
𝐑𝐞𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐭𝐨𝐫𝐪𝐮𝐞 =
𝐁𝐚𝐬𝐞 𝐟𝐫𝐞𝐪𝐮𝐞𝐧𝐜𝐲
𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐟𝐫𝐞𝐪𝐮𝐞𝐧𝐜𝐲
𝐱 𝐌𝐨𝐭𝐨𝐫 𝐫𝐚𝐭𝐞𝐝 𝐭𝐨𝐫𝐪𝐮𝐞
but since the actual reduction torque is dependent on the motor, the torque may become lower than the reduction
torque mentioned above. In a case such as this, setting the safety factor in d179, and reducing the maximum
frequency at which the output torque can rise prevents loads falling due to insufficient output torque.
 Hoist function auxiliary setting
It is possible to select whether to set the double speed rate when moving medium loads to a fixed value, or to set
the double speed rate proportional to the load with bit 0.
Bits 1 to 7 are for use by the manufacturer, and should not be changed.
177
175
Fset󲷙󲁠󰎤󰻝󰧹
d175 󲷙󲋮󱱕󲒽󲎠󰕹󱊂(󰔔)
d177 󲷙󱱕󲒽󲎠󰕹󱊂(󰔔)
100
󰲉󱱕󲒽[%]
󲏁󲋠󰻝󰧹[Hz]
Fset
0
d184
󲒽󱱕󲒽󰲉(󰔔)
d182
󲋮󱱕󲒽󰲉(󰔔)
󲋮󱱕󲒽
󲒽󱱕󲒽
󱱕󲒽
175
100
󰲉󱱕󲒽[%]
󲏁󲋠󰻝󰧹[Hz]
Fset
0
d184
󲒽󱱕󲒽󰲉(󰔔)
d182
󲋮󱱕󲒽󰲉(󰔔)
󲋮󱱕󲒽
󲒽󱱕󲒽
󱱕󲒽
0 : 󱱕󲒽󲎠󰕹󱊂󲏦󰡆 (0: 󰃼󰎤󱊂(󰔅󰆺󱱕)) 0 : 󱱕󲒽󲎠󰕹󱊂󲏦󰡆 (1: 󱱕󲒽󰸻)
177
If 1 (proportional to load) is selected at bit 0, refer to the following diagram for the double speed rate.
177
175
Fset󲷙󲁠󰎤󰻝󰧹
Fbase󲷙󰻝󰧹
Fmax 󲷙󰬒󲥸󰻝󰧹
d175 󲷙󲋮󱱕󲒽󲎠󰕹󱊂(󰔔)
d177 󲷙󱱕󲒽󲎠󰕹󱊂(󰔔)
100
󰲉󱱕󲒽[%]
󲏁󲋠󰻝󰧹[Hz]
Fbase Fmax
Fset
0
d175999
d175,d177󰨪999󰉆


d184
󲒽󱱕󲒽󰲉(󰔔)
d182
󲋮󱱕󲒽󰲉(󰔔)
󲋮󱱕󲒽
󲒽󱱕󲒽
󱱕󲒽

Detected load [%]
Detected load [%]
Heavy load
detection level
(Hoisting)
(Hoisting)
Light load
detection level
Heavy load
Medium load
Light load
Operating frequency [Hz]
Heavy load
Medium load
Light load
Operating frequency [Hz]
Fset: Set frequency
d175: Light load speed multiplying factor (Hoisting)
d177: Medium load speed multiplying factor (Hoisting)
Bit 0: Medium load speed multiplying factor selection (0: Fixed multiplying factor (factory default))
Bit 0: Medium load speed multiplying factor selection (1: Proportional to load)
(Hoisting)
(Hoisting)
Heavy load
detection level
Light load
detection level
Detected load [%]
Heavy load detection level (Hoisting)
Light load detection level (Hoisting)
Heavy load
Medium load
Light load
Fset: Set frequency
Fbase: Base frequency
Fmax: Maximum output frequency
d175: Light load speed multiplying factor (Hoisting)
d177: Medium load speed multiplying factor (Hoisting)
Operating frequency [Hz]
(3) Both d175, d177 other than 999
(4) d175 only is 999