Mitsubishi Electric MELSEC iQ-F Series Reference Manual page 19

■Explanation of angle advance
G
F
E
D
C
B
S0
A
a
• Automatic angle advance function
In accordance with the rotation speed of the encoder, this function executes the ON/OFF operation faster by the applied
arbitrary angle amount (angle advance amount) than the set angle.
By using this function, the mechanical operation delay that occurs during the high-speed rotation can be compensated.
 Configure the automatic angle advance function setting in 7 steps from S0 to S6 and set the value of each rotation speed (a
to g) and angle advance amount (A to G).
 When the rotation speed is 0 (initial value), the angle advance amount is treated as zero.
 Set S0 to S6 in ascending order of rotation angle. (S0 < S1 < ... < S6)
 The rotation speed and ON angle advance amount set in i_u21AngleAdvFuncSet (Angle advance function setting) are
applied in common to cam output numbers 0 to 15 (16 points).
• Individual automatic angle advance function
This function performs the output ON/OFF operation faster than the angle set as the desired angle (angle advance amount)
according to the rotation speed of the encoder.
Since the angle advance can be set for ON and OFF of the output separately, a minor delay in the mechanical operation that
occurs during the high-speed rotation can be compensated.
 The rotation speed and ON/OFF angle advance amount set in i_u21AngleAdvFuncSet (Angle advance function setting) are
applied to cam output numbers 0 to 3 (4 points).
 Configure the individual automatic angle advance function setting in 7 steps from S0 to S6 and set the value of each rotation
speed (a to g) and angle advance amount (A to G).
 When the rotation speed is 0 (initial value), the angle advance amount is treated as zero.
 Set S0 to S6 in ascending order of rotation angle. (S0 < S1 < ... < S6)
S3
S2
S1
b c
S6
S5
S4
d e f g Rotation speed (r/min)
3 SPECIFICATION
3.1 Details of the FB Library
3
17