5-153
J22
Commercial Power Switching Sequence
(Refer to E01 through E07.)
J56
PID Control (Speed command filter)
J57
PID Control (Dancer reference position)
(Refer to J02.)
J57 specifies the dancer reference position in the range of -100% to +100% for dancer control.
If J02 = 0 (keypad), this function code is enabled as the dancer reference position.
It is also possible to modify the PID command with the
/
keys. If it is modified, the new command value is saved as
J57 data.
J58
J59 to J61
PID Control (Detection width of dancer position deviation)
PID Control (P (Gain) 2, I (Integral time) 2 and D (Differential time) 2)
The moment the feedback value of dancer roll position comes into the range of "the dancer reference position
±
detection
width of dancer position deviation (J58)," the inverter switches PID constants from the combination of J03, J04 and J05 to
that of J59, J60 and J61, respectively in its PID processor. Giving a boost to the system response by raising the P gain may
improve the system performance in the dancer roll positioning accuracy.
Detection width of dancer position deviation (J58)
J58 specifies the bandwidth in the range of 1 to 100%. Specifying "0" does not switch PID constants.
P (Gain) 2 (J59)
Data setting range: 0.000 to 30.000 (times)
I (Integral time) 2 (J60)
Data setting range: 0.0 to 3600.0 (s)
D (Differential time) 2 (J61)
Data setting range: 0.00 to 600.00 (s)
Descriptions for J59, J60, and J61 are the same as those of PID control P (Gain) (J03), I (Integral time) (J04), and D
(Differential time) (J05), respectively.
J62
PID Control (PID control block selection)
J62 allows you to select either adding or subtracting the PID dancer processor output to or from the primary speed command.
Also, it allows you to select either controlling the PID dancer processor output by the ratio (%) against the primary speed
command or compensating the primary speed command by the absolute value (Hz).
Data for J62
Control function
Decimal
Bit 1
Bit 0
Control value type
Operation for the primary speed command
0 0
0
Ratio
(%)
Addition
1 0
1
Ratio
(%)
Subtraction
2
1
0
Absolute value (Hz)
Addition
3
1
1
Absolute value (Hz)
Subtraction
Summary of Contents for FRENIC-MEGA
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