Dedicated Frequency Inverter For Water Pump (GK600-48)

User Manual
GK600-48 Dedicated for Water Supply System
1.Instruction
GK600-48 dedicated drives are applied to constant pressure water supply system equipped a single water pump. This series have dedicated functions like pressure/frequency wakeup, timer sleep, timer sleep pressure wakeup, timer sleep pressure wakeup and sleep again, etc.
This additional manual should be used along with GK600 Series General Purpose AC Motor Drive User Manual.
Group F4, constant pressure water supply parameters, are mainly added in this user manual. Importantly PID process control should be digital setting, while feedback can be set on the basis of application.
2.Hardware Difference
No.
3.Dedicated Parameters

4.Dedicated Parameters Specification
4.1F4 Group

0: Disabled
1: Enabled
Parameters in Group F4 will take effect only when this parameter is

Sets the pressure range upper limit.

0: Set by F4-03
1: Set by F4-04
2: AI1
3: AI2
Pressure setting source needs to be selected by this parameter. For water supply system and when the Group F4 are activated, F0-00 must be set to 0. The pressure determined by F4-02 selected source will be converted to a percentage value, as the dynamical PID digital setting value at F0-01.Water supply PID system setting is specified below:
1)F0-00=0 (must be)
If F4-02=0, F0-01 will be F4-03 x100.0/F4-01
If F4-02=1, F0-01 will be F4-04x100.0/F4-01
When F4-02 is set to 2 or 3, AI1 or AI2 curve will be determined by water supply pressure feedback source, and F0-01 will be a percentage value which equals to AI percentage value.
2)  Set PID feedback source by F0-02.
3)  Adjust PID parameters on the basis of the system's status.
F4-03 and F4-04 could be selected via the digital input terminal "constant pressure switch".

Constant pressure setting 1 or 2 could be switched by "constant pressure switch"terminal and F4-02 parameter value.

0: No sleep
1: Pressure sleep
2: Frequency sleep

If the pressure is detected higher than F4-06 value, with time delay set by F4-07, the system immediately goes to pressure sleep mode. F4-06 and F4-07 are activated only if F4-05 is set to 1 (pressure sleep).

If run frequency is lower than F4-08 set value, with time delay set by F4-09, the system immediately goes to frequency sleep mode. F4-08 and F4-09 are activated only if F4-05 is set to 2 (frequency sleep).

0: set by F4-11
1: set by F4-12

Pressure wakeup 1 or 2 activated can also be determined by F4-10 and "pressure wakeup switch"terminal as below:

In sleep mode, if the feedback pressure is less than pressure wakeup setting, and maintain the time set by F4-13, the drive will immediately exit sleep mode.

Ones place:
0: Disabled
1: Enabled
Tens place:
0: No wakeup in timer sleep
1: Wakeup allowed in timer sleep
As long as timer sleep is enabled, pressure/frequency sleep is disabled.

When the time now is timer sleep start time set by F4-15, and feedback pressure is bigger than the value of F4-17, drive enters timer sleep mode immediately.
When the time now is timer sleep end time, timer sleep mode is finished.
At F4-15 and F4-16, 2359 represents time 23:59, while 1130 means 11:30.

If feedback pressure is lower than the value set by F4-17, and it retains the same as long as the time set by F4-18, the drive wakes up from timer sleep mode immediately.

If feedback pressure is higher than F4-19, and lasts the time set by F4-20, on the condition that the drive has already been woken up from timer sleep mode, the drive will get into sleep mode again.

If feedback pressure is higher than the maximum stop pressure set by F4-12, the drive will stop running immediately.

0: Disabled
1: Enabled

If upper limit pressure protection F4-22 is set to1, and while feedback pressure is higher than F4-23 set value, drive will run with lower limit frequency.

For example, 2359 means time 23:59, while 1130 means 11:30.
This parameter indicates system current time, which should be set once again every other power-up.

When the pressure is lower than minimum stop pressure and lasts the time set by F4-26, drive stops running. F4-25 and F4-26 are usually used for protection on the system in case of no water in the pipe network.

0: Disabled
1: Enabled
When F4-27 is set to 1, if the drive is stopped at sleep mode, the drive will exit its sleep mode. When F4-27 keeps its default setting F4-27=0, if the drive is stopped at sleep mode, the drive will maintain its sleep mode unless the pressure or frequency meets the conditions to exit sleep mode.
4.2Input terminal added parameters

4.3Output terminal added parameters

4.4RUN and STOP added parameters

0: No Display; 1: Displayed
Ones place:
BIT0:Running frequency (Hz)
BIT1: Set frequency (Hz)
BIT2: Bus voltage (V)
BIT3: Output current (A)
Tens place:
BIT0: Output torque (%)
BIT1: Output power (KW)
BIT2: Output voltage (V)
BIT3: Motor speed (RPM)
Hundreds place:
BIT0: AI1 (V)
BIT1: AI2 (V)
BIT2: AI3 (V)
BIT3: Run frequency 2
Thousands place:
BIT0: DI
BIT1: External count value
BIT2: System pressure
BIT3: System time

Sets HMI displayed parameters in stop status. When a number of parameters are selected to be displayed, skim-through could be performed via key >> on keypad.
0: No display;
1: Displayed
Ones place:BIT0: Frequency setting (Hz)
BIT1: Bus voltage (V)
BIT2: Input terminal status
BIT3: Output terminal status
Tens place:
BIT0:AI1 (V)
BIT1:AI2 (V)
BIT2:AI3 (V)
BIT3: System time
Hundreds place:
BIT0: PID setting (%)
BIT1: PID feedback (%)
BIT2: Set length (m)
BIT3: Actual length (m)
Thousands place:
BIT0: Run linear speed (m/s)
BIT1: Set linear speed (m/s)
BIT2: External count value
BIT3: DI
Other parameters and functionalities are the same with GK600 Series General Purpose AC Motor Drives.