Delta VFD015CB21A-21 - Page 348

Chapter 14 PLC Function |C200 Series
14-63
API
141
FPID
P
S1 S2 S3 S4
PID control for the AC motor drive
Bit Devices Word Devices
X Y M K H KnX KnY KnM T C D
S
1
＊ ＊ ＊
S2
＊ ＊ ＊
S3
＊ ＊ ＊
S4
＊ ＊ ＊
Operands: None
16-bit command (9 STEPS)
FPID FPIDP
32-bit command
－ － － －
Flag signal: None
Explanation
1. S
1
: PID Set Point Selection, S
2
: Proportional Gain P, S3: Integral Time I, S4:
Derivative control D
2. This command FPID can control the PID parameters of the AC motor drive
directly, including Pr.08.00 PID set point selection, Pr.08.01 Proportional gain
(P), Pr.08.02 Integral time (I) and Pr.08.03 Derivative control (D)
Example
1. Assume that when M0=ON, S
1
is set to 0 (PID function is disabled), S
2
=0, S3 =1
(unit: 0.01 seconds) and S
4=1 (unit: 0.01 seconds).
2. Assume that when M1=ON, S
1
is set to 0 (PID function is disabled), S
2
=1 (unit:
0.01), S
3 =0 and S4=0.
3. Assume that when M2=ON, S
1
is set to 1(frequency is inputted by digital
keypad), S
2
=1 (unit: 0.01), S3 =0 and S4=0.
4. D1027: frequency command after PID calculation.
END
H0
M2
M1
M0
M1000
H1
H0
H0
H1
H1
H1 H1
H0 H0
H0 H0
FPID
MOV
D1027
D1
FPID
FPID
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Call 1(800)985-6929 for Sales
deltaacdrives.com
sales@deltaacdrives.com