4-190
For normal use of PID, set 10-00 to 4 and set PID target value in parameter 10-02.
When 10-00=4, in addtition to the percentage setting of 10-02 (PID target value), it allows PID setting
(12-38) in the main screen monitor. The maximum target value is set via parameter 10-33 (PID maximum
feedback value), the decimals are set via parameter 10-34 (PID decimal width) and the unit is set via
parameter 10-35 (PID unit). For example:
When 10-33 = 999, 10-34 = 1, 10-35 = 3 and 10-02 = 10%, then 12-38 = 9.9 PSI displayed in the main
screen monitor. User can also modify the value of 12-38 in the main screen monitor but the maximum
calue is 99.9 PSI (depending on the setting value of 10-33).
10-00=6 (from frequency command), it means the setpoint is the perecnetage of frequency reference
corresponding to the rated frequency. (ie: setpoint = 50 %, if the frequency reference is 30Hz and the rated
frequency is 60Hz). And this frequency source refers to the setting of 00-05.
When 10-00=7, DI multi-speed frequency command (refer to the setting description of parameter group 3)
is proportionally corresponding to PID target via multi-speed stage frequenfy setting of 05-01~05-16.
Note: Speed-stage 1 cannot set PID target value by switching auxiliary frequency via 04-05=0
or 4-10=0.
10- 01
PID Feedback Value Source Setting
Range
【1】:
AI1 Given
【2】:
AI2 Given
【3】:
Reserved
【4】:AI1 - AI2 Given
Note: Parameter 10-00 and 10-01 cannot be set to the same source. If both parameters are set to the
same source the keypad will show a SE05 alarm.
Note: When AI1 - AI2 is minus, it will be set to zero.
10- 02
PID Target Value
Range
【
0.0~100.0】%
10- 03
PID Control Mode
Range
【xxx0b】:
PID Disable
【xxx1b】:PID Enable
【xx0xb】:PID Positive Characteristic
【xx1xb】:PID Negative Characteristic
【x0xxb】:PID Error Value of D Control
【x1xxb】:PID Feedback Value of D Cotrol
【0xxxb】:PID Output
【1xxxb】:PID Output + Frequency Command
PID target value source setting(10-00) / PID feedback value source setting(10-01)
Please confirm parameter 04-00 conform the need (0V~10 V or 4mA~20 mА) if AI2 as PID target or PID
feedback. And check the dip switch from control board to the input type (V or I), please refer to wiring
diagram for more detail.
When 10-03 is set to xxx0b, PID will is disabled; if it is set to xxx1b, PID is enabled.
Note:
- LCD keypad will be switched automatically (16-00).