Fuji Electric FRENIC MEGA G2 Series - Page 271

5.3 Description of Function Codes 5.3.1 F codes (Fundamental functions)
5-87
FUNCTION CODES
Chap 5
FUNCTION
CODES
F Codes
E Codes
C Codes
P Codes
H Codes
A Codes
b Codes
r Codes
J Codes
d Codes
U Codes
y Codes
K Codes
At the start of
acceleration
At the end of
acceleration
At the start of
deceleration
At the end of
deceleration
S-curve (weak)
5%
5%
5%
5%
S-curve (arbitrary)
Setting range:
0 to 100%
H57
When accelerating
No. 1 S-curve
range
(when starting)
H58
When accelerating
No. 2 S-curve
range
(when finished)
H59
When decelerating
No. 1 S-curve
range
(when starting)
H60
When decelerating
No. 2 S-curve
range
(when finished)
Acceleration/deceleration time
<S-curve acceleration/deceleration (Weak): When frequency change is 10 % or higher than the maximum
frequency>
Acceleration or deceleration time (s) = (2  5/100 + 90/100+ 2  5/100)  reference acceleration or
deceleration time
= 1.1  reference acceleration or deceleration time
<S-curve acceleration/deceleration (Arbitrary: When 10 % at the start, 20 % at the end): When frequency
change is 30 % or higher than the maximum frequency.>
Acceleration or deceleration time (s) = (2  10/100 + 70/100 + 2  20/100)  (reference acceleration or
deceleration time)
= 1.3  (reference acceleration or deceleration time)
Curve acceleration/deceleration
This is a pattern to perform linear acceleration/deceleration (rated torque) at or below base frequency and
acceleration becomes gradually slower at or higher than the base frequency, and acceleration/deceleration with
constant load rate (rated output).
It is possible to accelerate/decelerate with the maximum capability of the motor to be driven by the inverter.
The diagram on the left
shows pattern at
acceleration.
This is the same as at
deceleration.
• When S-curve acceleration/deceleration and curve acceleration/deceleration is selected by curve
acceleration/deceleration H07, the actual acceleration/deceleration time becomes longer than the set
value.
• If acceleration/deceleration time is set shorter than necessary, current limiting function, torque limit or
anti-regenerative function may operate and acceleration/deceleration time may become longer than
the set value.
Torque/output
Base frequency
Output frequency
Acceleration torque
Acceleration output (kW)
Output frequency
Maximum frequency
Base frequency
Time
Specified acceleration time