RUNZE SV-08 Selector Valve Instruction Manual

: June 3, 2024
: RUNZE

Table of Contents

Chapter 1 Overview
Chapter 2 Technology and Function
Chapter 3 Description of Control Code
References
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Key Components for Analytical Instrume
Ecological Closed-loop Supplier RUNZE SV 08 Selector
Valve SV-08 Selector Valve
Instruction Manual

Thank you for choosing our product, please read and keep this manual carefully before use

Chapter 1 Overview

1.1 Company Profile
Nanjing Runze Fluid Control Equipment Co., Ltd. was established in 2014. We are a national high- tech enterprise focusing on R&D and production of fluid accessories for numerous analytical instruments. We engineer, manufacture and market differentiated standard products such as syringe pumps, selector valves, high-pressure valves, gastight syringes, peristaltic pumps, plastic fittings, etc.. We persevere in providing our customers with best quality and service in the fields of environmental monitoring, biopharmaceuticals, medical equipment, industrial automation and laboratory instruments, etc..
In past years, we have accumulated rich technical and practical experience that bring us honors of ISO9001, National High-tech Enterprise, Jiangsu Province Private Science and Technology Enterprise, 5A Bank Credit Assessment, 38 technical patents and multiple software copyright including 8 invention patents, 17 utility model patents, 13 design patents. Runze always focuses on strategy and innovation, accurately grasps the general trend of the fluid equipment industry, and has made continuous and large R&D investment in the core technology. This has enabled the company to obtain a huge advantage in the production and sales of analysis instrument accessories and is always at the forefront of the industry. RUNZE Technology Center has a reliable EMC laboratory and a series of advanced processing equipment and testing instruments, such as imported white light interferometer, Keens plane rapid detector, five-axis machining center, high-precision nanogrinding machine, etc.. Runze adopts leading production technology, fully implement lean production concepts, and always maintain professional international first- class manufacturing capabilities.

Chapter 2 Technology and Function

2.1 Product Features

Name: The selector valve is an electric selector valve independently developed by RUNZE Fluid Control Equipment Co., Ltd., also known as electric rotary valve;
Control: By receiving instructions from the host computer to control the operation of the stepper motor to make the rotor turn to the specified hole position to achieve the switching of the flow path. Serial communication protocol supports RS232/RS485/CAN bus.
Corrosion Resistance: This type of selector valve adopts sapphire valve core, which can be applied to various corrosive liquid. The valve head are made of UPE and PPS, maintenance-free;
Valve Core Structure: The valve core adopts a multi-directional self-adaptive plane fitting method, which can extend the service life of the product effectively. (This structure has been applied for utility patent, patent number: CN204852471U)
Motive Power: The rotation of the valve body adopts the imported NMB planetary gearbox motor as the power plant, which is extremely reliable.
Orientation: The valve hole is oriented by optical encoder, which can effectively solve the problem of inaccurate positioning after the gearbox is worn down.
Drive: The two-phase bipolar stepper drive module is a constant current drive chip, which can control the motor current with high efficiency. It has a built-in error detection circuit and error detection (TSD/ISD) signal output function;
Control Unit Interface: XH terminal with 2.54mm pitch
Mechanical Interface: 1/4-28UNF female thread
Usage: Widely used in the collection and distribution of fluid samples
Application: Environmental testing devices, experimental analysis instruments, medical analyzers, chromatographic instruments, etc.
Before using the selector valve, please read the “Instruction Manual” carefully and follow the provisions in it.

2.2 Naming Rules
The model parameters are as follows: RUNZE SV 08 Selector Valve -
fig

Example: slope type 10-port sapphire selector valve with PPS valve head is named QHF-SV08-X- S-T10-K1.2-S-S

2.3 Product Specification
The SV-08 selector valve can be divided into 10-port and 12-port according to the number of ports. RUNZE SV 08 Selector Valve - fig 1

The 10-port can be installed in place of other selector valves of RUZNE . The size of the mounting plate is shown in Figure 2-3-2 (unit: mm). RUNZE SV 08
Selector Valve - fig 2

2.4 Structure Dimensions (unit: mm) RUNZE SV 08 Selector Valve - fig
3

2.5 Technical Parameters

Description Configuration	10 port	Parameter 12 port
Orifice	1.2 mm
Dead volume (port to port)	27.5pL	43.754 (sloping port) /43.073pL (side

RUNZE SV 08 Selector Valve - fig 4

2.6 Flow Configuration
Center port is the common port and the valve can switch to any specific port by rotor. Flow configuration is shown in Figure 2-6. RUNZE SV 08 Selector
Valve - fig 5

2.7 Reset Status
Reset direction is counterclockwise (unchangeable). After reset, the rotor slot is between the port 1 and the port of the maximum number. At this time, the center port and other ports are disconnected, as shown in Figure 2-7.

2.8 Port Definition RUNZE SV 08 Selector Valve - fig
7

Port	Description
+	DC24V positive
–	DC24V negative
TX	RS232 TX
RX	RS232 RX
GND	GND
H	CANH
L	CANL
A	RS485 A
B	RS485 B

Port Definition of Driver Board

Chapter 3 Description of Control Code

3.1 Overview
The data transmission between the selector valve and the host device (computer, single-chip computer, PLC, etc.) adopts serial communication (eg. RS-232/RS-485/CAN bus) and the following describes the communication format. The communication adopts asynchronous serial communication. Commands and data frames use sum check, and the sum check is two bytes (2Byte). Commands and data in communication are in hexadecimal, and parameters are stored in little- endian mode.
Communication interface: RS-232, RS-485, CAN bus;
Communication mode: two-way asynchronous, master-slave mode;
Baud rate: RS232, RS485: 9600bps, 19200bps, 38400bps, 57600bps, 115200bps
CAN: 100Kbps, 200Kbps, 500Kbps, 1Mbps
Data bit: 8 bit
Parity: no check
Response time: <1 second

3.2 Installation and Debugging

Installation and debugging tools, see 《Instructions for Debugging Tools》for details.
Instructions for use, see 《SV-08 Quick Use Guide》for details.

3.3 Code Instructions
3.3.1 Control Command Format
a: Valve Parameter Setting Command (Factory Command)
b: Valve Parameter Query Command (Common Command)
c: Valve Action Command (Common Command)
Table 3-3-1 Send Command (Common Command)
Interpretation of 0xXX: 0x means hexadecimal, XX is a two-digit hexadecimal number. The value inputted into the software all should be XX.
The message frame of “Send Command” is 8 bytes, and the complete format is as follows:

FH (frame header)| Address code| Function code| Parameter| EOF (end of frame)| Sum check
---|---|---|---|---|---
B0| B1| B2| B3| B4| B5| B6| B7
STX| ADDR| FUNC| 1-8 bit| 9-16 bit| ETX| Low byte| High byte

The 1 byte STX: Frame header (0XCC) nd
The 2 byte ADDR: Address of slave device (0x00~0x7F)
Multicast Address (0x80~0xFE)
Broadcast Address (0xFF) The 3 rd byte
FUNC: Function code th The 4 th and 5 byte:
Parameters corresponding to the function code th The 6 byte
ETX: End of frame (0xDD) th The 7 th and 8 byte:
Cumulative sum check code from byte 1 to 6

Note: The above command format refers to the common command. In particular, if a password bit is added to the factory command and the parameter bit has also changed, from the original 2 bytes to 4 bytes, the command format is as follows:
The message frame of “Factory Command” is 14 bytes, and the format is as follows:
Table 3-3-2 Send Command (Factory Command)

FH (frame header)| Address code| Function code| Password| Parameter| EOF (end of frame)| Sum check
---|---|---|---|---|---|---
B0| B1| B2| B3,B4, B5,B6| B7| B8| B9| B10| B11| B12| B13
STX| ADDR| FUNC| PWD| 1-8 bit| 9-16 bit| 17- 24 bit| 25- 32 bit| ETX| Low byte| High byte

Table 3-3-3 Response command

FH (frame header)| Address code| Status code| Parameter| EOF (end of frame)| Sum check
---|---|---|---|---|---
B0| B1| B2| B3| B4| B5| B6| B7
STX| ADDR| STATUS| 1-8 bit| 9-16 bit| ETX| Low byte| High byte

Note: The send command and response command format of the common command are the same, and all the response command message frames are 8 bytes.

3.3.2 Command Format Instructions
Definition of frame header and end of frame B0, B5 (B11)

Name	Code	Remark
Frame header B0	0xCC
End of frame B5 (B11)	0xDD

Note: The send command and response command of the common command are the same. The frame header and end of frame are B0 and B5 respectively. Specially, the end of frame of factory command is B11.

Definition of address bit B1

Name	Abbreviation	Code B1	Remark
Address bit	Addr	0xXX

Note:

The send command and response command are the same.
The XX in “0xXX” means that it can be set, the factory default is 0x00, and the parameter value range is 0x00～0x7F.

Table 3-3-4 Control command instructions (B2～B10)
A: Valve Parameter Setting Command (Factory Command) (B2～B10)

Code B2| Abbreviation| Password (B3 B4 B5 B6)| Parameter (B7 B8 B9 B10)
---|---|---|---
0x00| Set address| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| B7=0xXX (B8=0x00 B9=0x00 B10=0x00)
The value range of XX is 00～7F in V1.9 & above version, 00～FF in version below V1.9, the default is 00.
0x01| Set RS232 baud rate| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| Totally 5 baud rates: the factory default is 9600bps (B8=0x00 B9=0x00 B10=0x00）
B7=0x00 corresponding baud rate is 9600bps B7=0x01 corresponding baud rate is 19200bps B7=0x02 corresponding baud rate is 38400bps B7=0x03 corresponding baud rate is 57600bps B7=0x04 corresponding baud rate is 115200bps
0x02| Set RS485 baud rate| B3=0xFF B4=0xEE B5=0xBB B6=0xAA
0x03| Set CAN baud rate| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| Totally 4 baud rates: the factory default is 100K (B8=0x00 B9=0x00 B10=0x00）
B7=0x00 corresponding baud rate is 100Kbps B7=0x01 corresponding baud rate is 200Kbps B7=0x02 corresponding baud rate is 500Kbps B7=0x03 corresponding baud rate is 1Mbps
0x0E| Set automatic reset when power on| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| B7=0x00 means non-automatic reset B7=0x01 means automatic reset
Automatically reset to the position between port 1 and the port of the maximum number after power on (the factory default of selector valve is automatic reset).
---|---|---|---
0x10| Set CAN destination address| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| B7=0xXX (B8=0x00 B9=0x00 B10=0x00)
The value range of XX is 00～FF, and the default is 00.
0x50| Set multicast channel 1 address| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| B7=0xXX (B8=0x00 B9=0x00 B10=0x00)
The value range of XX is 80～FE, and the default is 00.
0x51| Set multicast channel 2 address| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| B7=0xXX (B8=0x00 B9=0x00 B10=0x00)
The value range of XX is 80～FE, and the default is 00.
0x52| Set multicast channel 3 address| B3=0xFF B4=0xEE B5=0xBB B6=0xAA| B7=0xXX (B8=0x00 B9=0x00 B10=0x00)
The value range of XX is 80～FE, and the default is 00.

0x53

Example: Use the 0x50/51/52/53 command to set the multicast address (only uses 0x50/51/52 commands in this example).
Use three RUNZE SV-08 selector valves with the same software version form. In RS485 communication mode, set their addresses into 00, 01, 02 and make a mark. Firstly, for the multicast channel 1 address of SV-08 whose address is 00, set the parameter 0x81 into 81 by command 0x50; for the multicast channel 3 , the parameter 0x83 is set into 83 by the command 0x52; Secondly, for the multicast channel 1 address of SV-08 whose address is 01, set the parameter 0x81 into 81 by command 0x50, for the multicast channel 2 address, the parameter 0x82 is set into 82 by the command 0x51; finally, for the multicast channel 2 address of SV-08 whose address is 02, set the parameter 0x82 into 82 by the command 0x51; for the multicast channel 3, the parameter 0x83 is set into 83 by the command 0x52. (See below table)

Device Item| Device1 (address 0)| Device2 (address 1)| Device3 (address 2)
---|---|---|---
Multicast address| 81| 81|
| 82| 82
83| | 83
Broadcast address| FF| FF| FF

After the setting is completed, connect the three devices in parallel to the serial debugging tool, and use RUNZE debugging tool software MotorTest V0.8 to debug. Set the address into 0x81, the command into 0x44, and the parameter into 0x01. Click to send and then observe that the action of switching valve port is carried out on device 1 & device 2. Set the address into 0x82, the command into 0x44, and the parameter into 0x03. Click to send and then observe that the action of switching valve port is carried out on device 2 & device 3. Set the address into 0x83, the command into 0x44, and the parameter into 0x05. Click to send and then observe that the action of switching valve ort is carried out on device 1 & device 3. Set the address into 0xFF, the command into 0x44, and the parameter into 0x03. Click to send and then observe that the action of switching valve port is carried out on all the devices.
The newly added command to set the multicast address greatly meets the needs of customer groups, making it easier and more convenient for customers. You can choose the device you want to control so that you can complete your work more efficiently and quickly during usage. B: Valve Parameter Query Command (Common Command) (B2～B4)

Code B2 Abbreviation Parameter B3 B4

0x20| Query address| The address ranges from 0x0000 to 0x007F. The default value is 00
Ox21| Query RS232 baud rate| Totally 5 baud rates: the factory default is 9600bps B3B4=0X0000 corresponding baud rate is 9600bps B3B4=0X0001 corresponding baud rate is 19200bps B3B4=0X0002 corresponding baud rate is 38400bps B3B4=0X0003 corresponding baud rate is 7600bps B3B4=0X0004 corresponding baud rate is 115200bps
0x22| Query RS485 baud rate
0x23| Query CAN baud rate| Totally 4 baud rates:
B3B4=0X0000 corresponding baud rate is 100Kbps B3B4=0X0001 corresponding baud rate is 200Kbps B3B4=0X0002 corresponding baud rate is 500Kbps B3B4=0X0003 corresponding baud rate is 1Mbps
0x2E| Query automatic reset when power on| B3=0x00 B4=0x00
---|---|---
0x30| Query CAN destination address| B3=0x00 B4=0x00
0x70| Query multicast channel 1 address| B3=0x00 B4=0x00
0x71| Query multicast channel 2 address| B3=0x00 B4=0x00
0x72| Query multicast channel 3 address| B3=0x00 B4=0x00
0x73| Query multicast channel 4 address| B3=0x00 B4=0x00
0x3E| Query current channel position| B3=0x00 B4=0x00

0x3F

| Query current version| B3=0x01 B4=0x09, above is an example, if the response parameter is the same as above parameter, it means the current version is V1.9, see the version number on the
label for details
0x4A| Query motor status| B3=0x00 B4=0x00

Note: After the V1.8 version, the software sub-version and the main version are merged into one command.
C: Valve Action Command (Common Command) (B2～B4)

Code B2 Abbreviation Parameter B3 B4

0x44

| The motor rotates through the code disc, and selects the best path automatically| It depends on the actual number of valve channels. For example, for the selector valve with 10 channels, B3=0xXX B4=0x00, where the value range of XX is 01～ 0A.
0x45| Reset| B3=0x00 B4=0x00
The selector valve runs to the reset optocoupler and stops.
0x4F| Origin reset| B3=0x00 B4=0x00
The selector valve runs to the encoder origin position, which overlaps with reset position of the 0x45 command.
0xA4| Switch the port according to the required direction| According to the actual number of ports of the selector valve, the parameter cannot exceed the maximum number of ports of the current valve, and B3, B4 must be two adjacent ones. see the figure below for details.
0xB4| Switch between ports according the required direction| According to the actual number of ports of the selector valve, the parameter cannot exceed the maximum number of ports of the current valve, and B3, B4 must be two adjacent ones. see the figure below for details.
0x49| Stop forcibly| B3=0x00 B4=0x00

Example 1: 0x44: switch the port according to the required direction

The current valve connected port is NO. 1

Target: run counterclockwise to port 4
Command: 0xA4 Parameter: 0x0304
The valve will run counterclockwise through port 3 to port 4, as shown in Figure 3-3-4-1:

The current valve connected port is NO. 1

Target: run clockwise to port 4
Command: 0xA4 Parameter: 0x0504，
The valve will run clockwise through port 5 to port 4 (B4 clockwise direction will not be repeated below), as shown in Figure 3-3-4-2:

RUNZE SV 08 Selector Valve - fig 8

Example 2: 0xB4: Switch between ports according to the required direction
The current valve connected port is NO. 1
Target: run counterclockwise to between port 3 and port 4
Command: 0xB4 Parameter: 0x0304，
The valve will run counterclockwise through port 3 and stop between port 3 and port 4, as shown in Figure 3-3-4-3：

Sum check (B6, B7)

Name	Abbreviation	Code B6 ， B7	Remark
Sum check	Sum check	0xXX 0xXX	Sum of header and end

Note: The sum check bit of the factory command is B12, B13 Response parameter description B2 B3 B4
Table 3-2-5 Response Parameter

Code B2	Description	Parameter description=B3 B4
0x00	**** Normal status	B3=0x00 B4=0x00

Note:

In 485 communication, when sending an action command, the byte B2 in the response frame is FE, indicating that the command is received and being executed.
The code B2 in the response command indicates the current running status of the motor. Only when B2=0x00, the motor is in normal operation, and other parameters are shown in the above table, corresponding to different abnormal status respectively. In principle, the motor should be sent the 0X4A command to query the motor status at the end of the motor operation. Only when the parameter B2 in the response command is 00, other commands can be executed correctly.

Note: The code parameters of all the above commands are set in little- endian mode. Low data is stored in the low bit of the address and high data is stored in the high bit of the address.
Chapter 4 Common Problems & Solutions

Phenomenon	Problem	Solution
Not working when power on	The working voltage is not in the acceptable
range.	Check whether the voltage is within the acceptable range.
The connection is loose or disconnected.	Check whether the connection is

good.
The working current is not in the acceptable range.| Check whether the current is within the acceptable range.
Not aspirate after switching| It is blocked by debris.| Remove the pump tube and clear the debris.
Liquid has bubbles.| The connection is not tight.| Replace suitable connectors.
No communication| The TX and RX lines of RS232 are connected reversely or phase A & B of RS485 are connected reversely.| Exchange the TX and RX line sequence of RS232 and exchange the phase A & B sequence of RS485.
The sent and received communications are consistent in RS232.| TX and RX are in short circuit.| Check whether there is short circuit, if yes, replace the cable.

Product safety precautions:

Please ensure that the voltage matches with the standard voltage of the instrument.
Please use the original serial cable of this product to connect to the power supply.
The three communication methods (RS232, RS485, CAN bus) of this product are in non- isolated mode.
Please cover the unused ports with suitable coned plugs when laid aside to avoid impurity substance and air.
Do not disassemble the product parts at will. No warranty for tamper-evident label tearing.
When operating the software, please refer to the operating instructions of the software and the communication protocol, and data input is not allowed to be fabricated without authorization.
Discarding the instrument should be in accordance with the regulations on the disposal of equipment. For the waste after using the machine, please follow the national environmental protection requirements. Users should not throw away at will.
When using CAN bus protocol to connect multiple devices, please refer to the connection method shown in Figure 4-1 below.

RUNZE SV 08 Selector Valve - fig 10

When using RS485 protocol to connect multiple devices, please refer to the connection method shown in Figure 4-2 below (CAN resistance is removed)

RUNZE SV 08 Selector Valve - fig 11 Chapter 5 Technical Service

Tel : 025-51197362
Phone : 138 5195 4068
Fax : 025-51197362
Technical support : 183 5195 5944
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Sales Email : xiaoyan.xiang@runzeliuti.com
Address : NO.9 Tianxing West Road, Dongshan Street, Jiangning District, Nanjing, Jiangsu, China

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