ATX Hydrosmart L932/B User manual

Intelligent Pump Controller
L932/B
Ver.1.1
Installation & Operation Manual
INTELLIGNET PUMP
CONTROL PANEL
IP54
Before carrying out any installation or maintenance
operation, controller must be disconnected from the
power supply;
Don't open the cover during running the controller;
Don't put wire,metal bar filaments etc into the
controller;
Don't splash water or other liquid over the controller;
INTELLIGNET PUMP
CONTROL PANEL
IP54
Before carrying out any installation or maintenance
operation, controller must be disconnected from the
power supply;
Don't open the cover during running the controller;
Don't put wire,metal bar filaments etc into the
controller;
Don't splash water or other liquid over the controller;
L932/B
STORE
SET
3 8 0 V 1 6 0
A
AUTO
A
0 8
Bar
A
PUMP
B
B
Controladores Inteligentes de bombas

Conventions used in this manual
In the manual the following symbols will be used:
!Generic danger Failure to comply with the safety regulations that follow can
irreparably damage the controller or equipment.
Electric shock risk Failure to comply with the safety regulations that follow
can cause death or serious personal injury.
!
■Before carrying out any installation or maintenance operation, controller must be disconnected form the
power supply;
■ Don't open the cover during running the controller;
■ Don't put wire ,metal bar filaments etc into the controller;
■Don't splash water or other liquid over the controller;
WARNING!!
■The electrical and hydraulic connections must be carried out by competent, skilled.qualfied personnel;
Never connect AC power to output uvw terminals;■
Ensure the motor, controller and power specifications matching;■
Don't install the controller in the following condition;■
Read this manual carefully before any operation.
Please keep this manual for future use.
CAUTION
Intelligent Pump Controller Installation & Operation Manual L932/B
mechanical shock corrosive gas or
corrosive liquid
Salt mist corrosion Rain and Moisture
5 5
Extreme heat and cold,
acceptable temperature
range: -25℃ +55℃
flammable material:
solvent
Salt
WARNINGS
Installation & Operation Manual Ver.1.1

Installation & Operation Manual L932/B
Installation & Operation Manual Ver.1.1
TABLE OF CONTENS
Intelligent Pump Controller
1 INTRODUCTION …………………………………………………………………………………………… .1.
1.1 Applications …………………………………………………………………………………………….1.
1.2 Technical parameter & features … … … … … … … … … … … … … … … … … … … … … … … … … … .1.
… … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .3. 1.3 Controller components
2 INSTALLATION … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .5.
2.1 Electrical connection to the power supply line and electrical pump … … … … … … … … … … … .5.
2.2 Parameter Calibration setting & erasing … … … … … … … … … … … … … … … … … … … … … … .6.
3 ELECTRICAL CONNECTION… … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .7.
3.1 … … … … … … … … … … … … … … … … … … … … .7.Installing liquid probe or float in the water well
3.2 Installing pressure transmitter … … … … … … … … … … … … … … … … … … … … … … … … … … … .8.
3.3 … … … … … … … … … … … … … … … .9.Electrical connection for pressure booster pumping system
4 ……………………………………………………… .12. SET DIFFERENT WORKING PRESSURE VALUE
… … … … … … … … … … … … … … … … … … … … … … … … … … … .12.4.1 Cut off pressure value setting
… … … … … … … … … … … … … … … … … … … … … … … ….12.
ST
4.2 1 Pump cut in pressure value setting
… … … … … … … … … … … … … … … … … … … … … … … ….13.
nd
4.3 2 Pump cut in pressure value setting
5 BASIC OPERATION……………………………………………………………………………………… .13.
………………………………………………………………………….13.5.1 Switching to MANUAL mode
…………………………………………………………………………… .13.5.2 Switching to AUTO mode
……………………………………………………… .13.5.2.1 AUTO mode working logic description
5.3 Pump protection … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … ….14.
5.4 Pump last five failure record displaying ……………… … … … … … … … … … ……………… … … .14.
5.5 Pump accumulative running time displaying … … … … … … … … … … … … … … … … … … … … … .15.
6 COMMUNICATION LINK ………………………………………………………………………………… .16.
6.1 Basic Function ……… ……… …… ……… ……… …… ……… ……… …… ……… ……… …… …… .17.
6.2 Special Application …………………………………………………………………………………… .17.
6.3 Technical parameter … … ……… … ……… … ……… … ……… … ……… … ……… … ……… … ….17.
………………………………… .18. 7 ELECTRICAL CONNECTON FOT PASSIVE DRY CONTACT POINT
8 TROUBLE SHOOTING GUIDE………………………………………………………………… … … … ….18.

Main features:
■Double pumps control
main pump / standby pump automatically alternate
main pump / standby pump automatically switch against malfunctions
standby pump participate running if required
Present pressure transmitter with 0.5-4.5V analog signal■
Easily setting the different pressure value and observing the dynamic pressure value■
Eliminates the pressure switches: pressure setting for two pumps; pressure setting for one pump■
Automatic stops the pump in the case of water shortage, protecting it from dry running without ■
installing float switch or liquid probe in the well
Auto / Manual switch■
Protect the pump against many faults■
Dynamic LCD displaying the real pressure value■
Dynamic LCD displaying pump running information■
Pump accumulative running time displaying■
Pump last five fault record displaying■
Pump shaft anti rust■
Present remote monitor ■
Present one dry contact point■
Installation & Operation Manual L932/B
Intelligent Pump Controller
Installation & Operation Manual Ver.1.1
.1.
Model L932-B is specially designed for pressure booster pumping system, by adopting pressure
transmitter (0.5-4.5V), pump user can easily set the different pressure value and observe the dynamic
pressure value in the pipeline.
Typical usage scenarios include:
- Houses - Flats
- Holidays houses - Farms
- Water supply from wells - Industrial plants
- Construction site
The manufacturer is not liable for malfunctioning if the product has not correctly been installed,
damaged, modified, and /or run outside the recommended work range or run outside the recommended
work range or in contrast with other indications given in this manual.
The manufacturer declines all responsibility for possible errors in this operation manual, if due to
misprints or errors in copying.
The manufacturer reserves the right to make any modifications to products that it may consider
necessary or useful, without affecting the essential characteristics.
Thank you for choosing our products, we will supply you with cordial and well-around service as well as
ever.
Intelligent Pump Controller model L932-B is an easy to use, programmable controlling & protection
device for duplex booster pump with direct start, three phase, 0.75KW-15KW(1HP-20HP)
RESPONSIBILITY
1 INTRODUCTION
1.1 Applications
1.2 Technical parameter & features

Installation & Operation Manual L932/B
Installation & Operation Manual Ver.1.1
The following chart shows main technical parameters of Model L932/B
Intelligent Pump Controller
.2.
Trip response time of over load
Trip response time of open phase
AC220V-AC440V /60HZ Three Phase
refer to the nameplate
Rated input voltage
5sec-5min
＜2sec
Trip response time of short circuit
Trip response time of under / over voltage
Trip response time of dry run
Recovery time of over load
Recovery time of under / over voltage
Recovery time of dry run
Trip voltage of over voltage
Trip voltage of under voltage
Liquid level transfer distance
＜0.1sec
＜5sec
6sec
30min
5min
30min
115% of the rated input voltage
80% of the rated input voltage
≤1000m
Dry run
Over load
Transient surge
Under voltage
Over voltage
Pump shaft rust protection
Protection function
Working temperature
Working humidity
Degree of protection
Install position
Unit dimensions ( L x W x H)
Unit weight (net)
Main installation data
-25℃ -- +55℃
20% - 90%RH
IP54
Horizontal
31 x 22x 12cm
3.6kg
RS485 technical data
Baud rate 1200 bps、2400 bps、4800 bps、9600bps
Default: 9600bps
RS485 Bus Interface: asynchronism semiduplex
Physics Interface
Protocol type MODBUS Protocol (RTU)
Pump stalled
Short circuit
Three phase unbalance
Phase reversal
Repeated start
Open phase
Manual / Auto
Pressure control characteristic
Main technical data
Control method
Rated output power 0.75-15KW (1HP-20HP)
refer to the nameplate
Main technical characteristic
Control characteristic pressure control
Pressure transmitter with0.5-4.5V analog signal

8 8 8 V 8 8 8
C
A B C
A
B
AUTO MANUAL
AB C
Stop Start 1
8 8 8
Bar
Low
Hig
UNDER V OVER V DRY RUN
OVER LOAD PUMP STALLED
A B C PUMP NO CALIBRATION
THREE PHASE UNBALANCE
REPEATED START
PHASE REVERSAL
A B C OPEN PHASE
MS
H
V
A
%
Start 2 Start 3
PUMP
Psi
Intelligent Pump Controller Installation & Operation Manual L932/B
voltage displaying
area
fault displaying
area
ampere displaying
area
pump running status
displaying area
Installation & Operation Manual Ver.1.1
.3.
①② ③ ④ ⑤ ⑥ ⑦
⑧ ⑨
⑩

1.3 Controller components
A
B
1. Control terminals for electrical connection to float switch/probe
2. The terminals for pressure transmitter
3. RS 485 terminals for communication link (remote monitor)
4. USB port
5. Passive dry contacting point
6. MCB for electrical connection to the power supply
7. Terminals to electrical pump
8. Displaying board
9. Main board
10. Transformer board
11. AC contactor
12. Remote monitor
13. Adaptor+cable for remote monitor(SC2)
14. Pressure transmitter
15.Wall-mounting spares+ waterproof tape for the cable of pressure transmitter
 

ON LINE
M
H
A
V
Meaning of the icons shown on the LCD
S
pump stops running
low pressure or lack of pressure in the pipeline or pressure tank
pump A
high pressure or full of pressure in the pipeline or pressure tank
L.P
H.P
L.P
H.P
Icon Meaning/Description
Installation & Operation Manual L932/B
Installation & Operation Manual Ver.1.1
%
Intelligent Pump Controller
ON LINE
voltage
minute
second
hour
percent
ampere
pump running
network normal connection icon, when this icon appears, it means the network
connection between pump control box and SC (slave controller) or computer is
normal;
network connection error icon, when this icon appears, it means there is no
network connections or network connection error between pump control box
and SC(slave controller) or computer;
pump fault icon, when this icon appears, it means pump control box is displaying
some fault information;
.4.
pump parameter configuration icon, when this icon appears, pump control box
is in parameter adjusting manual;
time displaying icon, when this icon appears, it means pump control box is
displaying some parameter of time, eg: pump accumulative running time (unit:
hour); counting down etc
pump B
pump C
A
B
C

2 INSTALLATION
2.1 Electrical connection to the power supply line and electrical pump
Installation & Operation Manual L932/B
Intelligent Pump Controller
Installation & Operation Manual Ver.1.1
.5.
DANGER Electric shock risk
Before carrying out any installation or maintenance operation, the L932/B should be
disconnected from the power supply and one should wait at least 2 minutes before
opening the appliance.
Never connect AC power to output U1 V1 W 1 U2 V2 W2 terminals.
Don't put wire, metal bar filaments etc into the controller.
Ensure the motor, controller and power specifications matching.
The electrical and hydraulic connections must be carried out by competent, skilled,
qualified personnel.
!
!
!
Pump A
M
PE Pump B
M
Icon Meaning/Description
Stop
Start 1
Start 2
Start 3
Psi
Bar
Low
Hig
pressure value for cut off setting
st
pressure value for 1 pump cut in setting
nd
pressure value for 2 pump cut in setting
rd
pressure value for 3 pump cut in setting
pressure unit
pressure unit
low pressure or lack of pressure in the pipeline or pressure tank
high pressure or full of pressure in the pipeline or pressure tank
① ② ③ ④ ⑤ ⑥
A+ B-
+ -
RED
YELLOW
BLACK
A B C
+
++
Air Switch
+
++
Input Power
Pressure
Transmitter
Com probe Lower probe Upper probe
water well
V1U1 W1PE V2U2 W2
F1 F2

3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A
0 8
MANUAL
0 0
Bar
Low
A B C PUMP NO CALIBRATION
PUMP
A
S
3 8 0 V 8 0
MANUAL
0 0
Bar
Low
A B C PUMP NO CALIBRATION
A
PUMP
A
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A B C PUMP NO CALIBRATION
A
MODE
A START
MODE
2.2 Parameter Calibration setting & erasing
To achieve best level of protection of the pump, it is essential that parameter calibration must be done
immediately after successful pump installation or pump maintenance.
Setting the parameter calibration(Pump A)
- Press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
- Press the key to run pump, confirm the pump and all pipe network in normal working state
(including voltage, running ampere et); LCD screen displaying:
- Press the button; The L932/B makes a "Di" sound and starts countdown, LCDscreen displaying:
- Pump A stops running and parameter calibration completed, LCD screen displaying:
Erasing former parameter calibration
When pump is reinstalled after maintenance or new pump is installed, user must erase the former
parameter calibration and a new calibration must be done.
Erasing the parameter calibration(Pump A)
- Press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
flash
flash
Installation & Operation Manual L932/B
Pump A is ready for running
Intelligent Pump Controller
Note:Parameter calibration of pump B is
same as pump A,just by pressing
B START button instead of A START
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A
Installation & Operation Manual Ver.1.1 .6.
STORE
SET

Installation & Operation Manual L932/B
A STOP
flash
- Press the key and release till L932/B makes a "Di" sound, L932/B recover the default factory
setting and LCD screen displaying:
3 ELECTRICAL CONNECTION
3.1 Installing liquid probe or float switch in the water well
Liquid probe installation
In event of high risk of electric storms (lightning) or when liquid medium in well or tank or sump is
very dirty it is recommended float switch is used.
signal cable
installation stand
fixation cone
down-lead of
sensor
Com probe
Lower probe
Upper probe
Wrap the signal cable and
down-lead of sensor
!
Float switch installation
If the float switch is equipped
with three wires use the BLACK
and BROWN wires. In event of
different colors use a multimeter
to identify correct connections
as follows:
Lower level no reading OFF
Upper level-positive reading-ON
Upper level (ON)
Lower level (OFF)
!
!DO NOT ENCASE SENSOR LEADS, FLOAT SWITCH WIRE OR SIGNAL CABLES IN METAL PIPES. USE
PVC OR PE TUBING.
Intelligent Pump Controller
Note:Erasing the Parameter calibration of pump B is same as pump A, just by pressing
B STOP button instead of A STOP
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A B C PUMP NO CALIBRATION
A
Installation & Operation Manual Ver.1.1
.7.

Installation & Operation Manual L932/B
Installation & Operation Manual Ver.1.1
Intelligent Pump Controller
.8.
3.2 Installing pressure transmitter
Technical parameter
The following chart shows the main the technical parameters of pressure transmitter
Main technical data
Measure Range
Power Supply
Output Signal
Accuracy
Overload Pressure
Broken Pressure
Insulation
Response Time
Wires
Elec. connector
Pressure Port
Shell Protection
Dimension & Pin definition
21.6
17
R2
12 12
32.2±0.1
52.5±1
a
b c
22
VOUT
VCC
GND
Yellow color wire
Red color wire
Black color wire
a
b
c
Pin definition
Value
0-2.5Mpa
5±0.5VDC
0.5-4.5V
±2%FS（-10℃100℃ ）
2×RP(rated pressure)
3×RP(rated pressure)
≥10MÙ@50V
＜10ms
Three-wire
Packard
G1/2
IP65

Installation & Operation Manual L932/B
Intelligent Pump Controller
R S T PE U1 U2 V1 V2 W1 W2
A+ B-
A B C M M
R S T PE U1 U2 V1 V2 W1 W2
water well
check valve valve
① ② ③
① ② ③
3.3 Electrical connection for pressure booster pumping system
④ ⑤ ⑥
A B C
A+ B-
④ ⑤ ⑥
Installation & Operation Manual Ver.1.1
.9.

Installation & Operation Manual L932/B
Intelligent Pump Controller
R S T PE U1 U2 V1 V2 W1 W2
R S T PE U1 V1 W1
Upper probe
Lower probe
Com probe
A B C
Upper probe
Lower probe
Com probe
water well
water well
check valve valve
check valve valve
U2 V2 W2
① ② ③
A+ B-
④ ⑤ ⑥
① ② ③ ④ ⑤ ⑥
A B C
A+ B-
Installation & Operation Manual Ver.1.1 .10.

Installation & Operation Manual L932/B
Intelligent Pump Controller
Start
Stop
R S T PE U1 U2 V1 V2 W1 W2
R S T PE U1 V1 W1
A B C
water well
water well
check valve valve
check valve valve
U2 V2 W2
① ② ③
A+ B-
④ ⑤ ⑥
① ② ③ ④⑤⑥
A B C
A+ B-
Start
Stop
Installation & Operation Manual Ver.1.1
.11.

Installation & Operation Manual L932/B
Intelligent Pump Controller
Installation & Operation Manual Ver.1.1 .12.
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A
1 0
Bar
Stop
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A
6 0
Bar
Start 1
STORE
SET
STORE
SET
STORE
SET
STORE
SET
4 SET DIFFERENT WORKING PRESSURE VALUE
ST nd
Note: the pressure value degree is CUT OFF SETTING > 1 PUMP CUT IN SETING > 2 PUMP
CUT IN SETTING
Note: suppose pump user sets the cut off pressure value: 10bar;
st
1 pump cut in pressure: 6bar;
nd
2 pump cut in pressure value: 3bar;
4.1 Cut off pressure value setting
- press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
- hold pressing key and click to add or decrease the cut off pressure value;
- loosen key, controller makes a DI sound, cut off pressure value setting complete;
ST
4.2 1 Pump cut in pressure value setting
- press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
st
- hold pressing key and click to add or decrease the 1 pump cut in pressure value;
- loosen key, controller makes a DI sound, cut off pressure value setting complete;
-

Installation & Operation Manual L932/B
Intelligent Pump Controller
Installation & Operation Manual Ver.1.1
.13.
MODE
5 BASIC OPERATION
5.1 Switching to MANUAL mode
Press the key to switch to manual state, L932-B is under the manual control state; under manual
state,press / key to run A/B pump; press / key to stop A/B pump;
Note: under manual state, the L932-B can not receive the signal from pressure transmitter;
5.2 Switching to AUTO mode
MODE
A START B START
A STOP B STOP
MODE
Note: under auto state, if the pump is running and pump user wants to stop pump running compulsory,
press the key to switch to manual state and pump stops running;
Note: under auto state, if the input power being cut off and recovery power again, the L932/B will enter
operation state after 10seconds countdown;
Note: no matter the L932/B is under auto or manual state, if the input power being cut off and recovery
power again, the L932/B will resume its operation state same as the operation state before power
being cut off;
5.2.1 AUTO mode working logic description
Note: suppose pump user sets the cut off pressure value: 10bar;
st
1 pump cut in pressure: 6bar;
nd
2 pump cut in pressure value: 3bar;
Press the key to switch to auto state, L932-B is under the auto control state; L932-B will run or stop
the pumps according to the pressure value setting;
nd
hold pressing key and click to add or decrease the 2 pump cut in pressure value;
-
loosen key, controller makes a DI sound, cut off pressure value setting complete;
STORE
SET
STORE
SET
3 0
Bar
Start 2
nd
4.3 2 Pump cut in pressure value setting
- press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A

Installation & Operation Manual L932/B
Intelligent Pump Controller
Installation & Operation Manual Ver.1.1 .14.
3). Meaning of the messages & graphic shown on the LCD screen
Messages & Graphic Description
Lack of water in water well
Full of water in water well
Lack of pressure in pipeline or pressure tank
Full of pressure in pipeline or pressure tank
L.P
H.P
L.P
H.P
5.3 Pump protection
During pump running, if dry run, over load, under voltage, etc failures happened, the L932/B will
immediately shut down the pump running and automatically execute a check for restarting conditions
after a built in time delay has elapsed. The L932/B will not recover automatically until all the abnormal
situation(s) have been cleared.
If pump stalled, open phase etc serious failures happened, pump user must check the pump and motor
immediately and repair the pump.
5.4 Pump last five failure record displaying
The L932/B can memorize the last five failures of pump, so it is very convenient for the pump users to
analyse the pump running conditions.
1). Normal pressure demanding
If pressure value in the pipeline is 6bar, controller will order single pump to run, when pressure value
reaches 10bar, single pump stops running; controller will alternate dual pumps running automatically
when pressure value varies from 6bar to 10bar;
2). Extra pressure demanding
single pump is running, pressure value in the pipeline still decrease to 3bar, controller will order another
pump to run simultaneously, till the pressure in the pipeline reaches 10bar, double pump will not stop
running;

Installation & Operation Manual L932/B
Intelligent Pump Controller
Displaying the pump A last five failure record
- Press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
MODE
- Hold pressing key and press key, the L932/B makes a "Di" sound, the L932/B displays
pump failure record;
- Press key to quit the failure record displaying;
MODE
0 0 1 V
ON LI NE
PUMP STALLED
S/N of Failure
Failure Sequence Number
Failure Icon
THE LATEST FAILURE OF PUMP A IS PUMP STALLED
A STOP
A STOP
Note:displaying the pump B last five failure record is same as pump A, just by pressing button
instead of
A STOP
B STOP
A
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A
5.5 Pump accumulative running time displaying
The L932/B can memorize how many hours of pump running, so it is very convenient for the pump users
to analyse the pump running conditions and do maintenance
Displaying the pump accumulative running time
- Press the key to switch to manual state, make sure the pump not running and LCD screen
displaying:
MODE
3 8 0 V 0 0
MANUAL
0 0
Bar
Low
A
Installation & Operation Manual Ver.1.1
.15.

- Hold pressing button and press key, the L932/B makes a "Di" sound, the L932/B
displays pump accumulative running time record;
- Press key to quit the accumulative running time displaying;
0 2 3
MANUAL
AUTO
H
Time Icon
THE PUMP A HAS RUN FOR 23 HOURS
Installation & Operation Manual L932/B
Intelligent Pump Controller
0 0
ON LI NE
Note:displaying the pump B accumulative running time is same as pump A, just by pressing
button instead of
A STOP
B STOP
B STOP
A STOP
A STOP
A
MODE
6 COMMUNICATION LINK
Model L932/B has communication interface, To adopting simple peripheral equipment (Slave Controller),
pump users can realize long distance monitoring function.
This function is applied for L932/B installed in the basement, pumping room etc, but pump users require
to monitor and control the pump on the ground or in the control room.
Pumping
Room
SC2
RS485
1200 meter Max
Control Room
shield twisted pair cable (SPT)
L932/B
A+ B- A+ B-
Installation & Operation Manual Ver.1.1 .16.
A
B
INTEL LIGNE T PUMP
CONTR OL PANEL
IP54
Before carrying out any installation or maintenance
operation, controller must be disconnected from the
power supply;
Don't open the cover during running the controller;
Don't put wire,metal bar filaments etc into the
controller;
Don't splash water or other liquid over the controller;
INTEL LIGNE T PUMP
CONTR OL PANEL
IP54
Before carrying out any installation or maintenance
operation, controller must be disconnected from the
power supply;
Don't open the cover during running the controller;
Don't put wire,metal bar filaments etc into the
controller;
Don't splash water or other liquid over the controller;
L93 2/ B
STORE
SET
3 8 0 V 1 6 0
A
AUTO
A
0 8
Bar
A
PUMP
B
B

6.1 Basic Function
Slave Controller, model SC2 with communication interface can realize long distance monitoring
function. In the control room, pump users can realize all functions of L932/B (Master Controller) through
SC2 without the parameter calibration and adjusting.
6.2 Special Application
As adopting communication interface, the wire communication distance is less than 1200metres. For
those installation environment which require long distance communication, say: mine, water tower,
across railway, road and bridge etc, users can adopt RS485 extender, wireless communication or GSM
system.
Please contact the manufacturer for more information.
6.3 Technical parameter
The following chart shows main technical parameters of communication link between L932/B & Slave
Controller (SC)
Installation & Operation Manual L932/B
Communication address
Setting range of controller address: 1-126
127: broadcast address, Host computer broadcasting, Slave machine
responsion forbidden
Baud rate 1200 bps、2400 bps、4800 bps、9600bps Default: 9600bps
1start bit 8data bit, 1stop bit, no verify
1start bit 8data bit, 2stop bit, no verify
Default: 1start bit 8data bit, 1stop bit, no verify
Data format
RS485 Bus Interface: asynchronism semiduplex Physics Interface
Main technical data
Protocol type MODBUS Protocol (RTU)
Rated input voltage for SC AC220V/50Hz, single phase
Main installation data
wire communication distance 1200meters max by shield twisted pair cable (STP) for RS485 & CAN
5000meters max by STP and RS485 extender
STP
RS485 extender
STP-120Ω one pair 20AWG for RS485 & CAN
5000meters (9600bps)
Intelligent Pump Controller
Installation & Operation Manual Ver.1.1
.17.
A+
B-
Input power
A
B