LUDWIG SCHNEIDER JS-70 User manual

LUDW IG
SCH NEI DER
德国罗德玮格仪表公司
Operation Manual of Liquid Crystal Flow Totalizer
液 晶 流 量 积 算 仪 使 用 说 明 书
EN
CH
Liquid Crystal Flow Totalizer Model: JS-70

Ludwig China Representative Office
Ludwig Automation Instrumentation
(Guangzhou) Co., Ltd.
Ludwig International Trade (Shanghai) Co., Ltd.
TEL：[phone]
E-mail：[e-mail]
OS：www.Ludwig-Schneider.com.cn
Page 01-33
液晶流量积算仪 型号: JS-70 34-59
Ludwig Schneider GmbH & Co. KG
KGAmEichamt 4-6,97877 Wertheim
EN
CH 页
Liquid Crystal Flow Totalizer Model: JS-70

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Table Of Contents
1. Product design function/signature description-------------------------01
2. Introduction --------------------------------------------------02
3. Statement ---------------------------------------------------02
4. Version -----------------------------------------------------02
5. Packing items-------------------------------------------------02
6. Matters needing attention----------------------------------------03
7. Technical indicators--------------------------------------------05
8. Install the wiring-----------------------------------------------06
9. Basic operation and running screen---------------------------------12
10. Configuration and auxiliary operation-------------------------------17
11. Failure analysis and troubleshooting-------------------------------25
12. Service Guide------------------------------------------------27
13. Appendix 1 Examples of Use-------------------------------------28
14. Appendix 2 Parameter Setting Example-----------------------------33

1.Product Design Function/Signature Description
1.1 Main Body Design Function Of LCD Flow Totalizer
1.2 Sign Description
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①
②
③
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① Wiring terminal
② Setting button
③ Flow indicator
①
②
③
⑤
① Model
② Output
③ Output
④ Instrument number
⑤ Power supply
01
④

2.Foreword
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This manual provides methods for performance indicators, installation wiring,
operation, parameter settings, and fault diagnosis when using the flow totalizer. Before
using the flow totalizer, please read this manual carefully to correctly grasp the use
method Then carry out specific operations to avoid unnecessary losses due to wrong
operations.
After you have finished reading, please keep it in a place where you can easily read it
at any time for reference during operation.
Thank you very much for using the flow totalizer produced by our company!
3.Statement
The contents of this manual are subject to change due to function and performance
upgrades without prior notice.
The contents of this manual are strictly prohibited to be reproduced or copied in whole
or in part.
The company guarantees that the content of this manual is correct. If you find
something wrong or wrong, please contact us.
4.Version
MF20X03C16X
5.Packing Items
After opening the packing box, please confirm the following before you use it. Once you
have received the wrong product, quantity or physical damage in appearance, please
contact our company or sales outlet.
Flow Totalizer Mounting brackets
User's Guide Product Certificate / Warranty Card
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EN
Serial number
1
2
3
4
5
6
7
8
Name
Flow Totalizer
Instructions
Mounting bracket (including screws)
Product Certificate / Warranty Card
PC software (CD-ROM)
RS-232C communication line
RS-232C / 485 conversion module
RS-232C / CAN conversion module
Unit
Station
This
Root
Portion
Zhang
Root
Pc
Pc
Quantity
1
1
2
1
Remarks
For disk mounting and fixing
Optional accessories
Optional accessories
Optional accessories
Optional accessories
6.Precautions
This series of instruments is suitable for general industrial occasions, if there are
special requirements, please set up a protective device
If the instrument is damaged due to transportation when unpacking, please contact the
manufacturer
For the safety of you and the instrument, please do not install it with power on. Please
use the rated voltage power supply, connect it properly, and ground it properly. After
connecting the power supply, please do not touch the terminals on the back of the
instrument to prevent electric shock.
In case of electromagnetic source
There are corrosive, flammable or explosive gases
Please install the instrument indoors,and ensure that the installation location is
smooth (to prevent the internal temperature of the instrument from being too high), avoid
wind and rain and direct sunlight, and do not install it in the following occasions:
In case of direct vibration or impact
When the instrument is close to the power line, strong electric field, strong magnetic
field, static electricity, noise or AC contactor, etc., the corresponding shielding
measures should be taken
When there is a lot of dust, salt and metal powder
When the temperature and humidity exceed the usage conditions
Where water, oil and chemical liquids are easily splashed
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If the meter has water, smoke, odor, abnormal noise, etc., please immediately cut off
the power supply, stop using it and contact the supplier or our company in time
In order to prolong the service life of the instrument, please carry out regular mainten-
ance and maintenance. Do not repair or disassemble the instrument yourself. When
wiping the instrument, please use a clean soft cloth, do not dip with alcohol, gasoline and
other organic solvents to clean, it may cause discoloration or deformation
The content changes and function upgrades due to system optimization will not be
notified
To avoid measurement error, please use the corresponding compensation wire when
the sensor is a thermocouple. When the sensor is a thermal resistance, use three copper
wires with the same specifications and a resistance value of less than 10Ω, otherwise it
will cause a measurement error.
About the content of this manual,we strive to ensure that it is correct,if you find somet -
hing wrong or wrong, please contact us
The contents of this manual are strictly prohibited to be reproduced or copied in whole
or in part
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7.Technical Guidance
Accuracy: Real-time display: ± 0.2% F.S.
Adopt high-performance ARM Cortex-M3 32-bit RISC core
Input function
Processor
Flow channel:analog signal: 4-20mA, 0-10mA and other signals;
Temperature channel: 4-20mA, 0-10mA, Pt100 and other signals
Display
Screen: 128 * 64 dot matrix monochrome screen LCD
Frequency signal: PI (frequency range: 0-5000HZ, maximum frequency range can be
customized)
Pressure channel: 4-20mA, 0-10mA and other signals
Note: Other input signals (such as digital input (DI)) or index number (such as PT1000)
need to be indicated when ordering
Power distribution output: provide 12VDC and 24VDC power distribution at the same
time, 12VDC standard power distribution <60mA, 24VDC standard power distribution
each channel <30mA
Output function
Transmission output: support 4-20mA standard current transmission output of one
flow channel, load capacity ≤500Ω, which is convenient for the collection of display
instruments or DCS / PLC, and realizes long-distance signal transmission
Power supply
Relay alarm output:support up to 2 relay alarm outputs, contact capacity 1A @
250VAC / 1A @ 30VDC (maximum contact capacity can be customized), can configure
upper and upper limit, upper limit, lower limit, lower and lower limit alarm
Power supply: default 220VAC / 50HZ AC power supply, support 24VDC or 12VDC DC
power supply (DC power supply needs to be specified when ordering)
Newsletter printing
Communication interface: RS232C or RS485, support Modbus RTU protocol, baud rate -
--- (1200, 2400, 4800, 9600)
Clock protection: integrated hardware clock, can run accurately after power off
Protective function
Power-off protection: Built-in memory protection parameters, permanently saved after
power off
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Net weight
Error accuracy
Note: It is forbidden to work in flammable and corrosive environment.
Compensation error of thermocouple cold junction: ± 2 ℃
Clock error: ± 2 seconds / day
Net weight: ≤1.5Kg
If the technical indicators are inconsistent with the physical instrument, please refer to
the physical object.
Ambient temperature: 0 ～ 50 ℃ (avoid direct sunlight)
Technical indicators are general indicators of this series of instruments. Please refer
to the actual product for function configuration.
Ambient humidity: 0 ～ 85% R.H (no condensation)
Description of technical indicators
Working environment
8.Installation and Wiring
8.1 Instrument Size
8.2 Hole Size
160mm 109mm
13.5mm
152 mm
+1
0Min 180mm
76 mm
+1 0
Min 100mm
Single standard opening size Container table opening size
80mm 75mm
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When installing the container table, you should refer to the minimum distance between
the instruments recommended in the above figure to ensure the necessary heat
dissipation and loading and unloading space.
Note:
8.3 Instrument Installation
installation hole. The thickness of the installation panel is (1.5 ~ 4.5) mm.
Note:
Step 2: Use the mounting bracket provided with the instrument to install it as shown in the
figure above (one bracket is installed on each side of the instrument, and the screws
used for the
Installation method:
instrument panel mounting bracket are M3 standard screws).
Step 1: Push the meter from the front of the installation panel (please use steel plate) into
the
Step 3: After the meter body is installed, you can connect the signal cable and the power
cable.
When installing this instrument, please do not tilt it to the left and right, try to install it
horizontally (it can be tilted back <30 °)
Dash board
Front panel
Mounting
screws screwdriver
Mounting brackets
8.4 Instrument Wiring
8.4.1 Wiring method
It is recommended to use U-shaped crimp terminals with insulation sleeves (the
terminals are M3.5 screws).
Crimp terminal with insulating sleeve
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For interference caused by static electricity, it is better to use shielded wire.
In order to prevent fire, please use double insulated wires (it is recommended to use
wires with a cross-sectional area ≥0.75mmfor the power cord; the relay output wiring
needs to have strong voltage resistance and a wire with a cross-sectional area ≥0.5 mm
When the platinum resistance is input, the resistance of each lead should be less than
10Ω (the lead resistance is the same).
Tighten the terminal screws securely. Tightening torque: 0.5N.m (5kgf.cm).
Fortheinterferencecausedbyelectromagneticinduction,itisbettertosplicethe
measurement circuit wiring equidistantly.
To prevent electric shock, please confirm that the power supply has been cut off at the
wiring money.
The measuring circuit and the power circuit should be laid separately. The measuring
object is not the interference source. Once it cannot be avoided, please insulate the
measuring object from the measuring circuit and ground the measuring object.
If the input wiring is connected in parallel with other instruments, it will affect the
measured value. When it is necessary to connect in parallel, it is necessary to pay
attention not to switch the power supply of one of the instruments during operation, as
this will adversely affect other instruments. Thermal resistance cannot be paralleled in
principle, and current signals cannot be paralleled in principle.
Please install an air switch in the power circuit to separate this watch from the main
power supply.
To improve the safety of the instrument, please observe the following warnings
when wiring:
After connecting the power cord, connect the power to check whether the instrument is
normal. Do not connect the signal cable before that. After confirming that the instrument
can work normally, disconnect the power and connect the signal cable.
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8.4.2 Terminal description
Terminal name
AC_L、AC_N、 或为+、-、NC
Q24、Q+、Q-
TA、TB、TC
P24、P+、P-
F12、F+、F-
A/TX、B/RX、GND
R1~R2
AO+、AO-
AC_L is the phase terminal of the AC power supply, AC_N is the neutral
terminal of the AC power supply, is the grounding terminal, + is the
positive terminal of the DC power supply, and-is the negative terminal
of the DC power supply, please specify when ordering when supplying
DC power
Differential pressure transmitter 24V power supply terminal, signal
positive terminal, signal ground terminal
Temperature channel analog input
24V power supply terminal, signal positive terminal and signal ground
terminal of pressure transmitter
12V power supply terminal, signal positive terminal and signal ground
terminal of frequency transmitter
RS232C communication interface / serial port printing interface (RXD
is the instrument signal receiving end, TXD is the instrument signal s-
ending end, GND is the signal ground end); RS485 communication
interface (A is the differential positive terminal, B is the differential ne-
gative terminal)
Relay output interface, specification 1A / 250VAC @ 1A / 30VDC
Positive and negative terminals of analog current output
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8.4.3 Terminal diagram
Note: The basic wiring diagram given in this instruction, when the instrument function
conflicts with the basic wiring diagram, please refer to the actual product.
8.4.4 AC / DC power input wiring
Note: The power input mode selected on the project site must be consistent with the
power input mode provided by the instrument itself, and the power supply voltage must
be limited
to the withstand voltage range of the instrument.
8.4.5 Input / output signal wiring
When the frequency transmitter is
powered by 24V, replace Q12 with Q24
when wiring, and connect Q- and F-
with wires.
Note:
When the power consumption of the
transmitter exceeds the feed load ca-
pacity of the unit, please use an external
voltage regulator to supply power.
Flow current input
Flow frequency input
Temperature channel input
Transmission output
Pressure channel input
Communication Interface
Relay output Relay output
AC power input
Frequency
Phase
wire
Zero
line Earth
AC power supply 22VAC
+24V -24V
DC power supply 24VDC
+12V -12V
DC power supply 12VDC
Flow frequency input Flow current input Flow current input
Three-wire frequency
transmitter
Two-wire system
variation (current) Three-wire system variation (current)
Thermal resistance/
temperature change (current)
Two-wire voltage
transformer (current) Transmission output (current)
Feed Signal Public Feed Signal Feed Signal Public
Feed Signal
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8.4.6 Communication wiring
RS-485 Connection
The communication line must be shielded twisted pair (the communication length should
not exceed 1000 meters), one end of which is connected to the serial communication port
of the computer through the RS-232 / 485 conversion module, and the other end is
connected to the 485 communication terminal of the instrument. Show.
No terminal resistance is connected between #1~#n-1
Conve-
rsion
module
Smart Meter
Terminal resistance
(external additional) 120Ω 1/2W or more
RS485 terminal of the instrument
Terminal resistance
(external additional)
RS-232C Connection
Users only need to connect one end of the equipped RS-232C communication line to the
RS-232C interface of the instrument, and the other end to the serial port of the portable
computer (or PDA) to achieve RS-232C communication connection. It is made of
shielded twisted pair, and the length of the communication line cannot exceed 10 meters.
Computer RS232
communication interface Instrument terminal Communication interface
wiring definition
Note: Please do not plug or unplug the communication cable with power on. If you need
to operate, please do it after the power supply of the instrument is turned off.
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9.Basic Operation and Operation Screen
Menu key
Enter key
Arrow keys
up down left right
Confirm key: execute the function where the cursor is located, edit the data where the
cursor is located, switch the size overview screen, etc.
Keyboard function
Down key: move the cursor down, switch the selection, reduce the data value of the
cursor, etc.
Up key: move the cursor up, switch the selection, increase the data value of the
cursor, etc.
Menu key: switch the main display running screen (overview, digital display, query list
screen), switch the number of decimal places where the cursor is (instrument coefficient,
range, density and other parameters), return to the upper screen (query sublist return to
query list screen ), The configuration screen quickly exits to the overview screen, etc.
Right Arrow: Move the cursor right / back, etc.
Left arrow: Move the cursor left / forward, etc.
Menu key + Confirm key: Configure the compound key, press and hold for 1 second
or more at the same time to enter the configuration screen.
9.1 Instrument Keys
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9.2 Mode of Use
The running screen includes overview screen, digital display screen and query list
screen. The running screen can be switched by pressing [Menu key].
When you are on the query list screen, you can press the [Enter key] to enter the sub-
list screen. When you are on the sub list screen, you can press the [Menu key] to return to
the query list screen.
To log in to the configuration screen,press and hold [Menu key] + [Confirm key] for one
second or more. When in the configuration screen, press [Menu key] to quickly return to
the overview screen.
When you are in the overview screen, you can press [OK] to switch to the small
overview screen. When you are in the overview screen, you can press the [Enter key] to
return to the overview screen.
When in the digital display screen, you can press [direction key] to switch the sub digi-t
al display screen.
Note:
Run screen Configuration
screen
Setting screen
Power ON
Operating mode Configuration mode
【Exit】Configuration
【Enter】key
Simultaneously press and hold
the【Enter】key and the
【Menu】 key for more than
one second
Press【Menu】
to switch
Overview
screen Query
list
Digital
display
screen
Small
overview
screen
Sub list
screen
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9.3 Running Screen
Flow
Cumulate
Flow
Difference
pressure
Temp
Cumulate
Flow Temp
Status bar: displays the current system
time.
Thelargeoverviewscreendisplaysthe
instantaneousflowrateandthetotal
accumulated value. Press [OK] to switch
the
sizeoverview,thesmalloverviewscreen
displays the full measurement value.
When the single screen cannot display
all the measured / calculated values, you
9.3.1 Overview screen
can press the【down key】Or【Up key】 Man-
ually cyclically switch to display the remaining measured/calculated values.
When different models of flow are selected, the relevant parameters in the digital display
screen-differential pressure / frequency / volume screen also follow changes,
[differential pressure], [frequency], [volume] correspond to [differential pressure type],
[frequency type] , [Linear] model.
9.3.2 Digital display screen
When different models of flow are selected, the relevant parameters in the small
overview screen also follow changes.[Differential pressure], [Frequency], and [Volume]
correspond to [Differential pressure],[Frequency type],and [Linear] models,respectively.
When the system is not compensated, the relevant interface or related parameters are
automatically hidden and not displayed (when the system medium is saturated steam,
you can configure whether to display the temperature (optional when the temperature is
saturated) or the pressure (optional when the pressure is saturated) the measured
value.
Status bar:display channel name,unit,signal type/reference (When temperature or pres-
sure is given, [reference] is displayed instead of signal type)
When the temperature or pressure is given, the temperature or pressure of the small pr-
ofile picture shows the given value.
When in the large overview screen, press [Menu key] to switch to the digital display
screen.
Digital display screen Digital display screen
General picture Small overview screen
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Press [Down Arrow] or [Up Arrow] or [Left Arrow] or [Right Arrow] to manually switch the
digital display screen of each channel, or set [switch] parameter in [System]
configuration to reach the number of each channel The display screen automatically
switches cyclically. At this time, the cycle status mark appears in the digital display
screen.
When in the digital display screen, press 【Menu key】 to switch to the query list screen.
When the relay is activated, its status flag changes from a hollow circle to a solid circle,
and when the system alarms, its status flag changes from a hollow box to a solid box.
Bar graph: The filled area of the bar graph represents the percentage of the current data
in the total range. Since the upper and lower limits of the state range have reached the
best display effect).
Note:
·The density displayed in the small overview screen is the value under the fluid working
condition.
·After the cumulative clearing is performed, the cumulative value in the size overview
screen is cleared.
·The flow rate displayed on the size overview screen and the picture display screen of
the mother and child are the values in the standard state.
Query list
Alarm list
Power down list
Alarm
Power down
Message
Daily accumulation
Monthly accumulation
Yearly accumulation
Year
Query list screen Alarm list screen
Power down list screen Annual cumulative report screen
Yearly accumulation
Total accumulation
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level list screen, press 【Menu key】 to exit and return to the query list screen
·When you are in the query list screen, press 【Menu key】 to switch to the overview
screen.
Alarm list screen:
9.3.3 Query list screen
·Alarm / Announcement Time: The alarm time in the upper row of each group of alarm
information in the alarm list is the alarm time, and the lower row is the alarm time. It is
displayed when there is no alarm-/--:-:-.
·Press 【Enter】 to enter the sub-level list screen where the cursor stays. When at
each sub-
·Alarm serial number: save up to 24 groups of alarm information, single screen can
display up to 3 groups of information.
·The information list screen is not open yet.
·Alarm channel: Q is flow channel, T is temperature channel, P is pressure channel.
Note
·Monthly reports can display up to 12 months of accumulated records per year, daily
reports can display up to 31 days of accumulated records per month, and annual reports
can display up to 1 year of accumulated records. For data, users are requested to make
report data records in a timely manner.
·Power-down sequence number: save up to 24 sets of power-down information, and
display up to 3 sets of information on a single screen.
· Cumulative Monthly Report shows the cumulative details and annual cumulative value
of the monthly flow of the meter system in the current year.
·After the cumulative clear is executed, the data in the corresponding cumulative report
screen is cleared.
·Scroll bar: indicates the current position in the total number of pages.
·After executing clear alarm list and clear power-down list, the data in the
corresponding list screen will be cleared.
·The accumulative annual report shows the annual accumulated value and total
accumulated value of the current flow of the instrument system.
·Alarm type: HH is the upper limit alarm, HI is the upper limit alarm, LO is the lower limit
alarm, and LL is the lower and lower limit alarm.
Power down list screen:
Cumulative report screen:
·Cumulative daily report shows the daily flow accumulation details and monthly
cumulative value of the current month of the instrument system.
·Power-down / power-up time: the upper row in each group of power-down information
in the power-down list is the power-down time, and the lower row is the power-up time.
·Scroll bar: indicates the current position in the total number of pages.
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10.Configuration and Auxiliary Operation
10.1 Configuration and System Configuration
Password：
System Flow Temp
Pressure Features Quit
Time
Password
Switch
Atmospheric pressure
System maintenance
Quit
Configuration screen System configuration
"System configuration" parameter definition:
Lo ca l a tm os ph er ic pr es sur e: lo ca l en vi ro n me nt al p re ss ur e, u se r- de fi ne d
configuration, fixed unit kPa, initial default value is 101.325KPa (ie 0.101325MPa).
Note:
Time setting: Set the system date and time of the instrument.
The initial password of [Configuration] is [00 00 00]. After entering the correct password,
press [Enter] to enter the hierarchical menu. If ‘*’ does not disappear, it means that the
password is wrong or you did not press [Enter] to confirm.
User password: Set a password for user management authority.
Press and hold [Menu key] and [Confirm key] at the same time for one second to enter the
[Configuration] screen.
Automatic switching:represents the time interval for the cyclic switching between the
two channel pictures in each channel of the digital display screen. The initial value is 0S,
which means that it does not automatically switch.
System maintenance: Mainly play the role of restoring the default settings, clearing the
alarm / power-down list and other parameter maintenance. The parameter maintenance
process is irreversible. Once the operation is performed, the list data or parameters will
be cleared or restored to the default, please be careful.
The user password is the only password to enter the configuration modification
parameters. After the loss, the configuration modification parameters cannot be
entered. The user should modify the password as soon as possible after purchasing the
instrument and store it properly. If it is lost, please contact the supplier or our company in
time. contact.
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