AC70 VC CONTROL FREQUENCY INVERTER MANUAL
FUNCTION PARAMETER DETAILED SPECIFICATION
110
H-14 PID preset frequency
Range: 0.00Hz-maximum frequency Default:
0.00Hz
H-15
PID preset frequency
running time
Range: 0.1-6500.0s
Default: 0.0s
This function make frequency inverter accelerate to PID preset frequency
[H-14]
with acceleration time 1 after PI
operation starts, and will keep running for PID preset frequency running time
[H-15]
given, and then executes the
PID close loop operation.
PID preset frequency running time diagram
preset frequency
running time
Time
PID adjustment running
preset
frequency
Frequency
H-16 PID keypad digital given
Range: 0.0%-100.0%
Default:50.0%
Only when
[H-12]
parameters is set for 1,this parameter is valid. Take the sensor maximum measuring range
[H-18]
as a benchmark. When this parameter is changed, PID given value of monitoring target will automatically
synchronize change.
H-17 PID channel gain
Range: 0.01-5.00 Default:
1.00
This function is used to amplify or reduce the input analog value of feedback channel
H-18
Sensor maximum measuring
range
Range:1.0-100.0
Default:100.0
This function is used to adjust the display data of PID given value and PID feedback value.
Actual LED display value= given (feedback) signal - lower input limit × sensor largest range
Upper input limit-lower input limit
For example in pressure control, if it is set for sensor maximum pressure, the display value is actual pressure value.
Assumes that take external terminal (VS1) for feedback single input channel, when VS1 upper limit voltage is 9V,
the lower limit is 0.5V, the present feedback voltage is 4.5V, the maximum sensor measure range is 20mpa.
LED display value =
（
4.5-0.5
）
×20/(9-0.5)=9.4mpa
