Chapter 12 Description of Parameter Settings
MH300
Master Frequency Command Source (AUTO, REMOTE)
Default: 0
Settings 0: Inputs from digital keypad
1: Inputs from RS-485 communication
2: Inputs from external analog (refer to Pr.03-00, Pr.03-01)
3: Inputs from external UP / DOWN terminals (multi-function input terminals)
4: Pulse inputs without direction command
(refer to Pr.10-16 without direction)
5: Pulse inputs with direction command (refer to Pr.10-16)
6: CANopen communication card
8: Communication cards (CANopen card not included)
9: PID function (Pr.08-65 should be set as 1)
NOTE:
HOA (Hand-Off-Auto) function is valid only when you use with MO function
setting 42 and 56 or with KPC-CC01 (optional).
AVI Analog Input Selection
ACI Analog Input Selection
Default: 0
Settings
4: PID target value
5: PID feedback signal
1. Common applications for PID control:
Flow control: Use a flow sensor to feedback the flow data and perform accurate flow
control.
Pressure control: Use a pressure sensor to feedback the pressure data and perform precise
pressure control.
Air volume control: Use an air volume sensor to feedback the air volume data to achieve
excellent air volume regulation.
Temperature control: Use a thermocouple or thermistor to feedback temperature data for
comfortable temperature control.
Speed control: Use a speed sensor to feedback motor shaft speed or input another
machine speed as a target value for synchronous control.
2. PID control loop:
K
P
Proportional Gain (P), T
i
Integral Time (I), T
d
Differential Time (D), S Calculation
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