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RS485 - Industrial Instrumentation Parts

Published on: 2026-10-27

RS485 - Industrial Instrumentation Parts

Part List

U0-04 Sensor Range 0.0-60 Bar 10 ○ U0-05 Press. Calibration
on
0-60.0 Bar 0.5 ○ U0-10
or 0- 10v),change
Function
In two master and multi slave pumping system,master and standby master drive are connected to
command
d by U2-26
Code
1.Terminal wiring diagram
on/off, set U0-10=1
At Stop/running status, directly press Up or Down ( do not need to enter U
3. Quick operation step
2.Set motor type U3-32=1 Set the value according to the nameplate of motor: rated
PID mode. If run at given frequency, no need to change U0-13.
Multi-pump control
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Description Set range Unit Default Modification
b. Exchange any two of U/V/W wiring
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
press. U1-05 High Press. Alarm Value
Standby Master drive 2 U0-10=2,U0-13=2,U3-01=2,U3-03=2
1:Reverse
2:Communicati
The system has two parameter group: 1. U group (function group) ,U group includes U0,U1,U2,U3
gauge,increase U0-05. When display
running without any fault,then the self-learning process is finished. Set U0-13=1 to be
display status
control
Slave drive 3 U0-10=2,U0-13=2,U3-01=3
1:External
1)Multi-Pump Control-Can realize two masters and Max.4 auxiliaries (standby master works as slave) to
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
Code
seconds,then set the target pressure.. 2)Set sensor type and sensor range on master and standby drive. Function
simultaneously
rotation direction:
2: Forbidden
parameter group) and hold for 3 seconds,then set the target pressure.. 2) Basic parameters setting
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subgroups 2. d group (monitoring group)
If any pump’s rotation direction is not correct, refer to one of the following 2 ways to change the the
ENTER Used to save parameters settings
4.Self-learning is activated when “TUNE” appears on the display screen. Press Run
external switch
external terminal to control the drive
Description Set range Unit Default Modification
1: (4-20)
replaces the master to command the whole system only when the master fails to work.The two master
or 0- 10v),change
1.Set U0-13=0
0-60.0 Bar 15.0 ○ U1-07
powe U3-33, rated speed U3-34, rated current U3-36, rated frequency U3-37
Master drive 1 U3-03=3
service life of the whole unit machine. 2. Operating steps for multi-pump system
pressure sensors as below:
0 ○ U0-03 Sensor type
0 ○ When use
Standby Master drive 2 U0-10=2,U0-13=2,U3-01=2,U3-03=3
Stop
mA
Description Set range Unit Default Modification
the whole system; when any auxiliary drive fails to work, the system will just skip it by and start the next
Reset (back to factory default setting) by pressing ENTER and SHIFT
Note
Level Note
Master drive 1 U3-03=1, Standby Master drive 2 U0-10=2,U0-13=2,U3-01=2
V
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3.Set U3-60=12
The following is the procedure on how to change the sensor range (U0-04)
4)Adjust display pressure
smaller than
gauge,decrease U0-05
U0-02 Running
0: (0-10)
Two pump system :
At Stop status, directly press UP or DOWN ( do not need to enter U parameter group) and hold for 3
When display smaller than gauge,increase U0-05.When display bigger than gauge,decrease U0-05
Direction
Drive type Parameters setting
80% of target
V
Code
U0-01 Start Press. Setting
1. Terminal wiring diagram
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4) Under stop/running status, press “+” / “-” and hold 3seconds to increase or decrease pressure
U0-03 Sensor type
to the auxiliaries and automatically controls the auxiliaries to run or stop and PID status according to
from 10bar (factory default value) to 15bar. The procedure is the same for
5)Parameters setting for pump station system
button to start the self-learning which lasts a short period of time ,when it stops
ENTER again to the parameter of the function code, press “+ “and “- “ to modify the parameter and
Self-learning operation steps for permanent magnet motor
Start and
Four pump system:
Single pump control mode
5: (4-20mA
0:Forward
mA 1 ● U0-04 Sensor Range 0.0-60 Bar 10 ○ 3)Confirm each pump’s rotation direction
Drive type Parameters setting
Drive type Parameters setting
1: (4-20)
combine work. 2)There are two masters (one is master,the other is standby master) and 3 slaves. The standby master
(0~200) 100 ○ Below is parameters needed to set based on user’s requirement
Three pump system:
0:keypad
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
again (do not need to hold for 3secs) to switch to d group
a. Modify U0-02 value
When display
Low Press. Alarm Value
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
bigger than
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Note: “○” means parameters can be modified at both stop and running status. “●” means parameters can be modified only at stop status. Function
Used to start,stop pump and for reset fault.The button is invalid when using the
5: (4-20mA
press ENTER to save the setting.finally press MENU continually for 3 times to return to the original
1 ●
d by U2-26
Level Note
Master drive 1 U3-03=2
1) Target pressure setting
2.Debugging procedure
0-target press. Bar 2.4 ○
the water pressure condition. 5) When master drive failes to work, the standby master will automatically replace the master to controls
0: (0-10)
setting other parameters.
How to set parameters
Level
1) Set target pressure on master drive

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