M M820 Manual V8.2

The detail function please refer to our Y620 series 

Safety information and precautions

It is strictly forbidden to work with electricity, and when implementing wiring, inspection and other operations, the power must be switched off for 10 minutes, otherwise there is a risk of electric shock!

The main circuit terminals must be firmly connected to the cables, otherwise damage to the machine will occur due to poor contact.

Ensure that no foreign objects enter the inverter, such as wire fragments, solder, zinc and iron pieces, etc. to prevent the circuit from shorting and causing the inverter to burn.

As the output voltage of the inverter is a PWM pulse wave, do not install capacitors or inrush current absorbers (e.g. varistors) at the output, as this will cause the inverter to trip and even damage the power components. If you have already installed one, please make sure to remove it.

The company in accordance with the <product quality management law> this product warranty and maintenance, is not responsible for the joint and several responsibility relationship, if the user after using this product motor failure or burned the company is not responsible for repair or compensation motor and due to machine failure on the user caused by the impact of the company does not bear joint and several responsibility.

Environment: This product is for indoor use, if installed outdoors, the product should be well protected from rain, water, sun and low temperature protection facilities.

Model

Voltage Power Size Installation hole diameter

(mm)

H W D

220V

0 .75-2 .2KW 199 152 99 Ø 4

380V 4-7 .5KW 266 203 125 Ø 4

Diagram of the operating panel

Indicates setting pressure value

Indicates real-time line pressure

  Enter

Run light: always on Run status

Stop light: always on Stop status

Link pump: flashing Link status

Manual light: always on Operating according to U0-14 frequency

Automatic light: always on Constant pressure control

Water shortage lamp: always on Water shortage protection

Sleep light: always on Sleep state

Note: 0.75-2.2KW default pressure is 3kg (0.3MPa)

The sensor is voltage feedback, the range is 10kg (1MPa)

4-7.5KW default pressure is 3kg (0.3MPa)

Current feedback sensor with a range of 10kg (1Mpa)

Quick commissioning parameter setting

Pressure up/down: (when the inverter is running or stopped) Press and hold the + or - key for 3 seconds and then change directly without pressing the confirmation key to save the change automatically

U0-03 (sensor selection)    Factory default UO-03 = 3

Steo 1 Press and hold the menu key for 3 seconds to enter the menu and then press the confirm button

Step 2 Press the plus or minus key to go to UO-03, press the confirmation key

Step 3 Press the plus or minus key to select the sensor type, press the confirmation key

uO-04(Sensor range factory default uo-04 = 10 kg)(1MPa)

Step 1 Press and hold the menu button for 3 seconds to enter the menu and then press the confirmation button

Step 2 Press the Press or Decrease button to go to UO-04, press the Confirm button

Step 3 Press the plus or minus key to match the sensor range and press the confirmation key

Remarks The factory value is 10 kg, press the menu key 3 times in succession to return to the pressure panel.

If the motor reverses after starting you can enter UO-02 for reversing (o for clockwise, 1 for counterclockwise) 1 for counterclockwise direction) If external start/stop is required select UO-10=1

Instructions for setting parameters for multi-pump inline mode (connect each inverter S+ in parallel with S+ and S- in parallel with S-)

Step 1 2 pumps, set to 2 for single main pump, 1 for double main pump

3 pumps, 3 for single main pump, 2 for double main pump

4 pumps, 4 for single main pump, 3 for double main pump

5 pumps, 5 for single main pump, 4 for double main pump

Step 2

Single master pump

Setting method If pump no. 2 is not a suitable standby main pump, it does not need to be connected to a pressure sensor and is set as follows:

Auxiliary pump No. 2 uo-10 and Uo-13 are set to 2, u3-01 is set to 3.

Auxiliary pump No. 3 Uo-io, Uo-i3 are set to 2, u3-o1 is set to 4.

Auxiliary pumps Uo-10, Uo-13 are both set to 2, u3-oi epidemic to 5.

Equatorial pumps Uo-10, Uo-13 both set to 2, u3-oi set to 6.

Step 2

Double master pump

Set-up method Note: Pump No. 2 must be connected to a pressure sensor when used as a standby main pump.

Set it as follows:

Standby main pump No. 2 is set U3-03 according to the actual number of auxiliary pumps

If the number of pumps is 3, set to 2

If the number of pumps is 4, set to 3

If the number of pumps is 5, set to 4

For No. 2, set U0-10 and UO-13 to 2, set U3-01 to 2

No. 3 auxiliary pump Uo-10, Uo-13 are set to 2, u3-o1 is set to 3.

Lay pump No. 4 uo-10, Uo-13 both set to 2, u3-01 set to 4.

Auxiliary pump No. 5 Uo-1o, Uo-13 are set to 2, u3-01 is set to 5.

The default display of the auxiliary unit is the operating frequency and the auxiliary unit's inline pump indicator flashes when communication is normal.

Terminal name Description of terminal usage

Dl1,DI2 Switching input terminal, forming an input with GND

v Analog input, voltage range: 0~10V Input impedance: 6.8KQ

10v This unit provides 10V power output, output current range 0~~100mA

GND Reference zero potential for 5V, 10V, 24V

Mo Open collector output terminal, the corresponding common terminal is GND

External voltage range: 0 to 24V, output current range: 0 to 50mA

24v 24 V power supply output provided by the machine

5V 5V power supply output provided by the machine

S+ , S- Linkage operation, signal connection

485+ , 485- External standard communication

Common alarm codes and solutions

Alarm Code Alarm description Possible causes Solution

A一01 Water shortage protection 1. Lack of water in the inlet pipe of the pump, or insufficient water supply to the inlet pipe.

2. Pressure below 0.5 bar 1. Check if there is water coming through the water inlet or blockage

2. Exhaust air when the pump is in operation

3. Check if the pump is turning forward and reverse correctly

4. Close the valve at the outlet of the newly installed water pump, and open it wide after the pressure has been reached

A-04 Low current protection 1.U1-04 is set too high. 1.u1-04 Reduce the protection current value.

E-02 Overcurrent in acceleration Acceleration time too short Extend acceleration time UO-18

E-03 Overcurrent in deceleration Deceleration time too short Increasing deceleration time UO-19

E-04 Overcurrent in operation Sudden change of load. Output out of phase Reduce load fluctuations. Check wiring

E-05 Software overcurrent Same as E-02, E-03, E-04 Same as E-02, E-03, E-04

E-08 Overvoltage in acceleration 1. Input voltage too high

2. Frequent power on/off Checking the supply voltage

E-09 Overvoltage in deceleration 1. Deceleration time too short

2. Input voltage abnormal 1. Extend deceleration time

2. Check supply voltage

E-10 Overvoltage during operation 1.Abnormal power supply voltage 1.Check the power supply voltage

E-15 Frequency converter overload 1. Excessive load

2.Acceleration time too short 1. Reduce load or replace large capacity inverter

2.Extend acceleration time

E-16 Motor overload 1. Load too large

2. Acceleration time too short

3. Protection factor set too low 1.Reduce the load

2. Extend the acceleration time

3. increase the overload protection factor

E-17 Current detection error 1. Damaged current detecting device or circuit

2.Auxiliary power supply defective Seek service from the manufacturer

E一18 Under-voltage during operation 1. Abnormal supply voltage

2. Large loads in the grid to start 1. Check the supply voltage

2. separate the power supply

E-21 Inverter overheating 1. Blocked air duct

2. High ambient temperature

3. Damaged fan 1. clean the air ducts or improve ventilation

2. lower the carrier frequency

3. replace the fan

E-26 Sensor failure 1. Sensor feedback signal disconnected

2. Sensor used to detect signal

Faulty sensor

3. Wrong sensor type setting 1.Check the feedback channel

2. Check the sensor for faults

3. According to the type of sensor or remote transmission pressure

Select the corresponding parameter (u0-03) according to the sensor type or the remote pressure meter

E-29 Motor tuning fault 1. Motor parameters not set according to nameplate

2. Parameter recognition process timeout 1. Set the motor parameters correctly according to the nameplate

2.Check inverter to motor leads