dooch N747D - Page 30

30 BOOSTER PUMP SYSTEM
BOOSTER PUMP SYSTEM N747D
- Constant of differential ( D ) : : It is a constant of differential in PID control
variables.
Range : 1 ~ 100
Change of constant of differential ( I ) settings. (Example: In case of to change 10 to
20)
1. Using
Key, select
2. Initially the first ‘0’ of the ’010’ blinks.
3. Enter in order of 0, 2 and 0 using
Key.
4. After changing to required value, make sure to press
Key.
※ Set value is not changed until input key is pressed.
- Dead zone : It’s the detection range of non-flow. It works when only one
inverter operates.
I.e., if only one pump operates and current state of that current pressure >
( setting pressure – Dead zone) is sustained for more than 20 seconds, inverter
decelerates in order to inspect the state of non-flow. Even if it decelerates, when
current pressure > (settins pressure – Dead zone), it stops.
Range : 0.0 ~ 2.0
Change of dead zone settings
(Example: In case of to change 0.3kgf/cm² to 0.4kgf/cm²)
1. Using
Key, select .
2. Initially the first ‘0’ of the ’003’ blinks.
3. Enter in order of 0, 0 and 4 using
Key.
4. After changing to required value, make sure to press
Key.
※ Set value is not changed until input key is pressed.
- Maximum sensor value : Enter the maximum value as far as pressure sensor
measures.
Range : 1.0 ~ 25.0
Change of maximum sensor value.
(Example: in case of to change 16.0kgf/cm² to 20.0kgf/cm²)
1. Using
Key, select .
2. Initially the first ‘1’ of the ’16.0’ blinks.