Smart SV-04 Selector Valve
Instruction Manual
Smart SV-04 Selector Valve
Chapter1 Getting Started
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, multiport valves, peristaltic pumps, gastight syringes, 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.
RUNZE attracted experienced talents with strong capability on integrating software and hard-ware at electronic research, mechanical design, mold manufacturing. 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 Technology Center has a reliable EMC laboratory and a series of advanced processing equipment and testing instruments, such as imported white light nterferometer, Keens plane rapid detector, five-axis machining center, high-precision nano-grinding machine, etc., Continuous and substantial investment in research and development, which enabled the company to obtain a huge advantage in the manufacture and sales of analytical instrument accessories.
Chapter2 Product Introduction
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 Upper 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.
- 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 PCTFE (polychlorotrifluoroethylene) 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 positioned 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
- 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:
slope type 10-port sapphire small and low pressure selector valve is named QHF-SV04-X-S-T10-K1.2-S
2.3 Product Specification
The SV-04 selector valve can be divided into 6-port, 8-port and 10-port, according to the number of ports, as shown in the figure below:
2.6 Technical Parameters
| Description | Parameter | |
| Orifice | 1.2mm | |
| Wetted material | PCTFE valve head, Sapphire rotor/stator | |
| Dead volume (Port to Port) | 27.5μL | |
| Dead volume (Rotor groove) | 5.41μL | |
| Pressure rating | 0-0.5Mpa (air) | 0-0.8Mpa (water) |
| Origin detection | Auto reset to initial position when powered on (this function can be opened or closed) | |
| Liquid temperature | 0-150℃ | |
| Connection | 1/4-28UNF | |
| Replaceable parts | Stator replaceable, sealed rotor irreplaceable | |
| Transposition | Random start to any specific port | |
| Driver | Non-optional | |
| Valve switching time | ≤4s/circle | |
| Max. torque | 4N/m | |
| Communication | RS232/RS485/CAN | |
| Baud rate | RS232/RS485: 9600bps, 19200bps, 38400bps, 57600bps, 115200bps CAN: 100Kbps, 200Kbps, 500Kbps, 1Mbps | |
| Address & Parameter setting | Via communication | |
| Power supply | DC24V/1A | |
| Max. power | 24W | |
| Operating temperature | 0℃-50℃ | |
| Operating humidity | <80% relative humidity, non-condensing | |
| Dimension (L*W*H) | 63.7*50.4*115.2mm | |
| Net weigh | 0.437kg | |
Figure 2-6
2.7 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 2-7.
SV-04B Reset position: between the port 1 and the port of the maximum number
2.8 Port Definition
| Port | Description |
| + | DC24V positive |
| – | DC24V negative |
| TX | RS232 TX |
| RX | RS232 RX |
| GND | GND |
| H | CANH |
| L | CANL |
| A | RS485 A |
| B | RS485 B |
Chapter 3 Description of Control Code
3.1 Overview
The data transmission between the selector valve and the Upper (computer, single-chip computer, PLC, etc.) adopts serial communication (e.g. 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
1. Installation and debugging tools, see 《Instructions for Debugging Tools》for details.
2. Instructions for use, see 《Smart SV-04 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 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 |
| stThe 1st byte STX : | Frame header (0XCC) |
| nd The 2nd byte ADDR | Address of slave device (0x00~0x7F) Multicast Address (0x80~0xFE) Broadcast Address (0xFF) |
| The 3rd byte FUNC | Function code |
| The 4th and 5th byte | Parameters corresponding to the function code |
| The The 6th byte ETX | End of frame (0xDD) |
| The The 7 th and 8th 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 | Address | 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 | Set multicast channel 4 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. |
| 0xFC | Parameter lock | B3=0xFF B4=0xEE B5=0xBB B6=0xAA | All the parameters are 0x00. |
| 0xFF | Restore factory setting | B3=0xFF B4=0xEE B5=0xBB B6=0xAA | All the parameters are 0x00. |
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-04 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-04 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-04 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-04 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 port 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 57600bps 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
- Origin: Rotor is at port 1
Target: CCW switch to port 4
Command: 0xA4
Parameter: 0x0304
After send commands, valve will CCW switch to port 4 (passing by port 3) as following picture: - Origin: Rotor is at port 1
Target: CW switch to port 4
Command: 0xA4
Parameter: 0x0504
After send commands, valve will CW switch to port 4 (passing by port 5) as following picture: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
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 Example: when using the query command “0x3E”, the parameter 0x01 0x00 ～ 0x0a 0x00 returned by B3, B4 means multi-channel 1-10 channels |
| 0x01 | Frame error | Parameter=0x00 0x00 |
| 0x02 | Parameter error | Parameter =0x00 0x00 |
| 0x03 | Optocoupler error | Parameter =0x00 0x00 |
| 0x04 | Motor busy | Parameter =0x00 0x00 |
| 0x05 | Motor stalled | Parameter =0x00 0x00 |
| 0x06 | Unknown position | Parameter =0x00 0x00 |
| 0xFE | Task being executed | Parameter =0x00 0x00 |
| 0xFF | Unknown error | Parameter =0x00 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.
3.4 SV04 CE Certification Recommended Circuit Diagram in Application
Since the SV04 selector valve can only exceed 500V in the surge test, if it is used in a harsh environment (such as high-voltage power, lightning strikes), then it is recommended that the user should add a surge protector to the power supply end of the SV04 to pass the 4th level (4KV).
3.4.1 Schematic Diagram of Surge Protector
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.
- When using RS485 protocol to connect multiple devices, please refer to the connection method shown in Figure 4-2 below (CAN resistance is removed)
Chapter 5 Technical Service
Tel : +86-25-51197362
Fax : +86-25-51197362
Phone : +86-138 5195 4068
Technical support : +86-183 5195 5944, +86-198 2581 4316
Official URL : http://www.runzeflulid.com
Alibaba Store URL : https://runzeliuti.en.alibaba.com
Sales Email : xiaoyan.xiang@runzeliuti.com
Address : NO.9 Tianxing West Road, Dongshan Street, Jiangning District, Nanjing, Jiangsu, China
http://www.runzefluidsystem.com www.runzeliuti.com
Documents / Resources
| RUNZE Smart SV-04 Selector Valve [pdf] Instruction Manual Smart SV-04 Selector Valve, Smart SV-04, SV-04 Selector Valve, SV-04, Selector Valve |