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RS485 - Industrial Parts & Components

Published on: 2026-10-23

RS485 - Industrial Parts & Components

Part List

Multi-pump control
Note: “○” means parameters can be modified at both stop and running status. “●” means parameters can be modified only at stop status. Function
0: (0-10)
Four pump system:
mA
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Master drive 1 U3-03=2
2: Forbidden
gauge,decreas e U0-05
Slave drive 4 U0-10=2,U0-13=2,U3-01=4
bigger than
Direction
1 ●
running pressure
2.Debugging procedure
external switch
Code
on
control
V
0: V termial
1: C termial
U0-04 Sensor Range 0.0-60 Bar 10 ○
10 / 21
4)Adjust display pressure
Start and
0: (0-10)
0: V termial
Level Note
5: (4-20)
gauge,increas e U0-05. When display
0:Forward
Terminal Name Description
2:Communicati
combine work.
subgroups 2. d group (monitoring group)
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1 ●
Master drive 1 U3-03=4
5: (4-20)
When display smaller than gauge,increase U0-05.When display bigger than gauge,decrease U0-05
service life of the whole unit machine. 2. Operating steps for multi-pump system
Slave drive 3 U0-10=2,U0-13=2,U3-01=3
rotation direction:
Slave drive 5 U0-10=2,U0-13=2,U3-01=5
0-target press. Bar 2.4 ○
Master drive 1 U3-03=3
and hold for 3 seconds,then set the target pressure.. 2)Set sensor type and sensor range on master and standby drive. Function
2. In running status,press Shift to show different displays among running
U0-02 Running
U0-04 Sensor Range 0.0-60 Bar 10 ○ 3)Confirm each pump’s rotation direction
terminal is connected. Used to save parameters settings
simultaneously
5: C1 terminal
When display
Slave drive 3 U0-10=2,U0-13=2,U3-01=3
Three pump system:
1:Reverse
0 ○ When use
DI1,DI2,D3
Code
1.Terminal wiring diagram
to the auxiliaries and automatically controls the auxiliaries to run or stop and PID status according to
Slave drive 3 U0-10=2,U0-13=2,U3-01=3
setting other parameters.
from 10bar (factory default value) to 15bar. The procedure is the same for
the water pressure condition. 5) When master drive failes to work, the standby master will automatically replace the master to controls
1) Set target pressure on master drive
If any pump’s rotation direction is not correct, refer to one of the following 2 ways to change the the
Terminal instruction
Note
Drive type Parameters setting
Stop
1: (4-20)
1. Terminal wiring diagram
At Stop status, directly press or ( do not need to enter U parameter group)
1)Multi-Pump Control-Can realize two masters and Max.4 auxiliaries (standby master works as slave) to
5: C1 terminal
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mA
on/off, set U0-10=1
Standby drive 2 U0-10=2,U0-13=2,U3-01=2,U3-03=3
Two pump system :
4) Under stop/running status, press “+” / “-” and hold 3seconds to increase or decrease pressure
V
0 ○ U0-03 Sensor type
The system has two parameter group: 1. U group (function group) ,U group includes U0,U1,U2,U3
Drive type Parameters setting
mA
Description Set range Unit Default Modification
At Stop/running status, directly press or ( do not need to enter U
a. Modify U0-02 value
Reset (back to factory default setting) by pressing and
drives are both equipped with pressure transducers,the other auxiliary drives are without transducers. 3).All the drives are connected through a RS485 Communication line. 4) The master detects pipe water pressure through pressure transducer,and sends the pressure signal
Code
1) Target pressure setting
1: (4-20)
Master drive 1 U3-03=2, Standby drive 2 U0-10=2,U0-13=2,U3-01=2
parameter group) and hold for 3 seconds,then set the target pressure.. 2) Basic parameters setting
Description Set range Unit Default Modification
press ENTER to save the setting.finally press MENU continually for 3 times to return to the original
the whole system; when any auxiliary drive fails to work, the system will just skip it by and start the next
80% of target
ENTER again to the parameter of the function code, press “+ “and “- “ to modify the parameter and
Low Press. Alarm Value
Note: The screen display on standby and slave drives are running frequency (default setting)
Function
press. U1-05 High Press. Alarm Value
2)There are two masters (one is master,the other is standby master) and 3 slaves. The standby master
5)Parameters setting for pumping system
pressure sensors as below:
0:keypad
0-60.0 Bar 0.5 ○ U0-10
U0-01 Start Press. Setting
replaces the master to command the whole system only when the master fails to work.The two master
Single pump control mode
mA
1) At the original display status, press SHIFT to display sequently running frequency,output current,dc link voltage,temperature and set pressure-current presure. 2) At the orignal displaly status, press MENU and hold for 3 seconds to enter U group ,press MENU
U0-05 Press. Calibration
Level
The following is the procedure on how to change the sensor range (U0-04)
Used to start,stop pump and for reset fault.The button is invalid when the external
Drive type Parameters setting
smaller than
Level Note
display status
Standby drive 2 U0-10=2,U0-13=2,U3-01=2,U3-03=2
(0~2.000) 1.000 ○ Below is parameters needed to set based on user’s requirement
b. Exchange any two of U/V/W wiring
frequency,output current,output voltage, temperature,set pressure and
Standby drive 2 U0-10=2,U0-13=2,U3-01=2,U3-03=3
Press MENU for 3 times to return to original display status. 3) After entering U group,press “+” to enter U1.U2.U3 group. Press ENTER to the function code,press
1: C termial
U0-03 Sensor type
one, ensuring the automatic shift of pump group. 6) The pumps run alternately (8hours by default) to balance every pump’s running time to prolong
Five pump system:
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How to set parameters
0-60.0 Bar 15.0 ○ U1-07
Drive type Parameters setting
1:External
command
Description Set range Unit Default Modification
Slave drive 4 U0-10=2,U0-13=2,U3-01=4
3. Quick operation step
In two master and multi slave pumping system,master and standby master drive are connected to
again (do not need to hold for 3secs) to switch to d group

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