Fuji Electric FRENIC MEGA G2 Series - Page 528

5.3 Description of Function Codes 5.3.9 d codes (Applied functions 2)
5-344
 Light load automatic double speed operation function
This function increases the speed to improve work efficiency when the load is light.
By turning ON digital input “LAC-ENB”, automatically double speed operation is enabled. By setting a light load
detection level and heavy load detection level, loads are distinguished in 3 levels (light load < medium load < heavy
load), and with light and medium loads, the motor runs at higher than the set frequency at the double speed rate.
Digital output “LAC” indicating that the motor is running at double speed turns ON at this time. However, double
speed operation is not performed if the set frequency is equal to or higher than the base frequency. With heavy
loads, the motor runs at the set frequency. By setting 999 for the double speed rate, the speed at which the motor
runs is automatically calculated from the load and a safety factor. In the interests of safety, adjustment of the load
detection function gain and offset (d171 to d174) must be complete to use this function.
ON
󰻝󰧹󲁠󰎤X 󰻝󰧹󲁠󰎤Y
ON
󲏁󲋠󰢇
FWD
REV
󲋮󱱕󲒽󱭍󲎠󰬘
DILAC-ENB
󲎠 󰻝󰧹󲁠󰎤Z
󰻝󰧹󲁠󰎤
|󰻝󰧹󰢇|
󰻝󰧹󲁠󰎤Y
󰾗󲎠󰪍󲚌
F08
󰻝󰧹󲁠󰎤Y
󰻝󰧹
F04
󰻝󰧹󲁠󰎤X
󰻝󰧹󲁠󰎤X
0
0
OFF
OFF OFF
󰷧 󰷧
󲎠󰻝󰧹󲁠󰎤
󲎠󰨠󲎽󰖰󰪍󲚌
d179:󰔔
d180:󰔔
󱱕󲒽󰎤
󰻝󰧹󲁠󰎤Z
󰻝󰧹󲁠󰎤Z
󰻝󰧹󲁠󰎤
󰈻󰬇
E30:󰻝󰧹󲏊
󰲉󰔽
󲎠󰨠󲎽󰖰󰪍󲚌
d179:󰔔
d180:󰔔
󲎠
󲎠󰻝󰧹󲁠󰎤
󰻝󰧹󲁠󰎤
󰈻󰬇
󱱕󲒽󰎤
ON
󲋮󱱕󲒽󱭍󲎠󲏁󲋠
DOLAC
OFF
OFF
ON
OFF OFF
󲁠󰎤󰻝󰧹󱊂󲁠󰎤
󱱕󲒽[%]󱭍󲁄󱞍
󰻝󰧹󲁠󰎤󱊂󲁠󰎤
󱱕󲒽[%]󱭍󲁄󱞍
Function code
Function
code
Name
Data setting range
Factory
default
Change
during
operation
E01 to
E09,
E98,
E99
Terminal [X1] to [X9] (Function selection)
Terminal [FWD] (Function selection)
Terminal [REV] (Function selection)
105 (1105): Light load automatic double
speed judgment permission “LAC-ENB”
-
N
E20 to
E24,
E27
Terminal [Y1] to [Y4] (Function selection)
Terminal [Y5A/C] (Function selection)
Terminal [30A/B/C] (Function selection)
159 (1159): Performing light load automatic
double speed operation “LAC”
-
N
d175
Light load speed multiplying factor
(hoisting)
100.0 to 300.0%, 999 (automatic)
100.0
Y
d176
Light load speed multiplying factor
(lowering)
100.0 to 300.0%, 999 (automatic)
100.0
Y
d177
Medium load speed multiplying factor
(hoisting)
100.0 to 300.0%, 999 (automatic)
100.0
Y
d178
Medium load speed multiplying factor
(lowering)
100.0 to 300.0%, 999 (automatic)
100.0
Y
d179
Speed multiplying factor safety factor
1.0 to 4.0
1.0
Y
d180
Load judgment delay time (hoisting)
0.00 to 10.00 s
2.00
Y
d181
Load judgment delay time (lowering)
0.00 to 10.00 s
2.00
Y
d182
Light load detection level (hoisting)
5.0 to 100.0%, 999 (disable)
25.0
Y
d183
Light load detection level (lowering)
5.0 to 100.0%, 999 (disable)
25.0
Y
d184
Heavy load detection level (hoisting)
5.0 to 100.0%, 999 (disable)
25.0
Y
d185
Heavy load detection level (lowering)
5.0 to 100.0%, 999 (disable)
25.0
Y
Stop mode
Frequency setting X
Frequency setting Y
Double speed mode
Frequency setting Z
Stop mode
Double speed mode
Run command
“FWD”
“REV”
Light load automatic
double speed enabled
DI signal “LAC-ENB”
Performing light load automatic
double speed operation
DO signal “LAC”
Frequency
setting
change
Frequency
setting
change
Frequency setting
Frequency
setting X
Frequency setting Z
Frequency setting Y
Double speed judgment delay time
d179: Hoisting
d180: Lowering
Load judgment
Frequency command
Frequency
setting X
Frequency setting Y
Frequency
setting Z
Double speed
frequency setting
Deceleration
time
F08, etc.
Base frequency
F04, etc.
Automatically calculated from
frequency setting Y x multiplying factor setting value,
or from load [%]
E30: Frequency arrival
detection width
Automatically calculated from
frequency setting Z x
multiplying factor setting value,
or from load [%]
Double speed
frequency setting
Double speed judgment delay time
d179: Hoisting
d180: Lowering
Load
judgment