16 I VFD-4000 VFD-4000 I 17
VFD-4000
VFD-4000
VFD-4000 Setting
*
JOCKEY PUMP OPERATION*
Operation sequence of the Jockey**
A jockey pump operation consist of 1 small pump and 2~3 big pumps. The
small pump will always start first and stop last. The main purpose of the
jockey pump operation is to operate the small pump during off-peak hours
and to maximize the big pump operation during peak hour to maximize the
energy efficiency.
A
B
C
1) Off-peak hour : A(90-100%)-Large pump(B,C:READY)
2) Peak hour: A(100%)- Large pump(B or C: RUN), Small pump A(STOP)
D
(B 08) I value: It is relevant to “I”(Integral Constant) out of the PID control parameters.
The compensation value for the increased amount of the target value.
(B 09) D value: It is relevant to “D”(Different Constant) out of PID control parameters.
The compensation value for the increased amount of the I value.
(B 10) Operation Method: Booster operation / Jockey operation.
(B 11) Simultaneous Operation Count: Setting up the number of pumps in parallel operation
(B 12) Restart Time:
Setting the restart delay time.
The system will operate only after the set time(B12) to avoid unecessary system
operation. This function is utilized to fill the water tank once the water drops to
a certatin level and tank needs to be re-filled.
(B 15) Output compensation: If the control range is out of range, the inverter output
value will automatically increase to prevent the pump from hunting.
The default value should not be adjusted as this may cause problems during operation.
(C 00) Stop Frequency: Setting the frequency to stop the system
(C 01) Motor Direction: Direction of the motor. CW or CCW.
(C 02) Low Current: This function is set automatically to 60% of the rated current
indicated on the inverter name-plate.
* The set value can be changed manually if required*
(C 03) Stop Time of Low Current: If the inverter operates below Low Current set value,
the inverter will stop after the Stop Time of Low Current.
(C 04) Emg Run Frequency: Setting the maximum operation frequency in the emergency situation.
(C 05) Power Failure Recovery: The original default values will be saved and restart to original
state after a power outage or failure.
- Stop: operation stops after electric fault occurs.
- Operation: Operation
- Previous State: To recover the operating status (Setting values)
before the fault.
(C 06) Input 1: Setting the input function of the terminal INP1.
(0: Not used, 1: Run / Stop 2: Emg run)
(C 07) Input 2: Setting the input function of the terminal INP2.
(0: Not used, 1: Run / Stop 2: Emg run)
(C 08) Output Relay 1: Setting the status input. Please connect the relay 1 to the INP1.
(0:Not used, 1:VFD Run, 2:VFD Stop, 3: VFD Alarm,
4: System operation, 5: System Stop, 6: System Alarm)
Booster Parameter (C)
Range
20.0 - 70.0
0: CW 1: CCW
0.5 - 50.0
0: Not Used 0-999
20.0 - 60.0
0: Stop 1: Operation 2: Previous State
0: Not Used 1: Operation/Stop 2: Emg. Run
0: Not Used 1: VFD Run 2: VFD Stop
3: VFD Alarm 4: System Operation
5: System Stop 6: System Alarm
0 - 20
Unit
Hz
A
Sec
Hz
Default
30.0
0
3.3
0
50
0
0
0
1
3
5
C 00
C 01
C 02
C 03
C 04
C 05
C 06
C 07
C 08
C 09
C 10
C 11
C 12
C 13
C 14
Display Content
Stop Frequency
Motor Direction
Low Current
Stop Time of Low Current
Emg. Run Frequency
Power Failure Recovery
Input 1
Input 2
Output Relay 1
Output Relay 2
Auto Reset
Reservation
Reservation
Reset Setting
Version
VFD-4000 Setting
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