5.4 Details of Function Codes
5-228
J56
PID Control (Speed Command Filter for PID)
Not used.
J57
PID Control (Dancer Basic Position)
J57 specifies the dancer basic position in the range of -100% to +100% for dancer control. If J02 = 0
(keypad), this function code is enabled as the dancer basic position.
It is also possible to modify the PID command with the
／
keys on the keypad. If it is modified, the new
command value is saved as J57 data.
For the setting procedure of the PID command, see Chapter 3, "3.3.3 Setting up frequency and PID
commands."
J58
J59 to J61
PID Control (Detection Width of Dancer Basic Position)
PID Control P (Gain) 2, I (Integral Time) 2, D (Differential Time) 2
When the dancer roll position (feedback) enters the "dancer basic position ± dancer basic position detection
range (J58),"the PID controller can switch the PID parameter from J03, J04 and J05 to J59, J60, and J61.
Set the gain high and increase the response to improve the accuracy.
PID control (dancer basic deviation detection width) (J58)
J58 specifies the bandwidth in the range of 1 to 100%. Specifying "0" does not switch PID parameters.
PID control P (Gain) 2 (J59)
PID control I (Integral time) 2 (J60)
PID control D (Differential time) 2 (J61)
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 controller output to or from the primary
speed command. Also, it allows you to select either controlling the PID dancer controller output by the ratio
(%) against the primary speed command or compensating the primary speed command by the absolute
value (Hz).
Table 5.4-156
Data for J62 Block selection
Decimal Bit 1 Bit 0 Control value type Operation for the
primary setting
0 0 0 Ratio control Addition
1 0 1 Ratio control Subtraction
2 1 0 Absolute value control Addition
3 1 1 Absolute value control Subtraction
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