| Type: | Rotary Encoder |
|---|---|
| Working Principle: | Incremental |
| Readout Mode: | Contact |
| Operating System: | Magnetoelectric Type |
| Signal Output: | Complementary Push-pull Output |
| Axle Sleeve Type: | Solid/Hollow Shaft |
| Samples: |
|---|
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Multi-turn Absolute Encoder With Modbus Interface
GMA-M Series
Housing Diameter:38,50,58mm;
Solid/hollow Shaft Diameter:6/8/10mm;
Interface: Modbus;
Resolution: Max.16bits, Single turn max.16bits, Total Max.29bits;
Supply Voltage:5v,8-29v;
Output Code: Binary, Gray, Gray Excess, BCD;
Widely used in various fields of automatic control and measurement system,such as machinery manufacturing, shipping, textile, printing, aviation,industry Testing machine, elevator, etc.
Vibration-resistant, corrosion-resistant, pollution-resistant;
| Product characteristics | |||||
| Housing Dia.: | 58mm | ||||
| Solid Shaft Dia.: | 10mm | ||||
| Electrical Data | |||||
| Resolution: | Max.16bits, Single turn max.16bits, Total Max.29bits | ||||
| Interface: | Modbus | ||||
| Output Format: | NPN/PNP open collector, Push pull, Line Driver; | ||||
| Supply Voltage: | 8-29V | ||||
| Max. Frequency Response | 300Khz | ||||
| Open Collector | Voltage Output | Line Driver | Push Pull | ||
| Consumption current | ≤80mA; | ≤80mA; | ≤150mA; | ≤80mA; | |
| Load current | 40mA; | 40mA; | 60mA; | 40mA; | |
| VOH | Min.Vcc x 70%; | Min.Vcc - 2.5v | Min.3.4v | Min.Vcc - 1.5v | |
| VOL | Max.0.4v | Max.0.4v | Max.0.4v | Max.0.8v | |
| Mechanical Data | |||||
| Start Torque | 4 x 10-3 N•M | ||||
| Max. Shaft Loading | Axial: 29.4N, Radial:19,6N; | ||||
| Max. Rotary Speed | 3000rpm | ||||
| Weight | 160-200g | ||||
| Environment Data | |||||
| Working Temp. | -30~80ºC | ||||
| Storage Temp. | -40~80ºC | ||||
| Protection Grade | IP54 | ||||
Main Introduction
♦ Transmission Interface:RS-485. Add:1~254.(Default to be 01)
♦ Baud Rate:4800,9600(Default),19200,38400. Communication
♦ Medium:STP.
♦ Date Frame Format:1 start bit,8 Data bit,1 Even Parity bit, 1 stop bit,Non-control flow.
Message Format:
1.Command word(CW) 03H:Read Location Value
Master Request(MASTRQ):Address | Command Word | Parameter Address | Data Length | Check Code
Slave Response:Address | Command Word | Byte Length | Parameter Values | Check Code
2.Command word(CW) 10H:Preset Current Position Value
Master Request(MASTRQ):Address | Command Word | Parameter Address | Data Length | Byte Length | Parameter Values | Check Code
Slave Response:Address | Command Word | Parameter Address | Data Length | Check Code
3.Command word(CW) 06H:Write Parameter Value
Master Request(MASTRQ):Address | Command Word | Parameter Address | Parameter Value| Check Code
Slave Response:Address | Command Word | Parameter Address | Parameter Value | Check Code
Read Location Value:
Master Query Location Value:01H 03H 00H 00H 00H 02H C4H 0BH
Note:01H-Adress | 03H-Command Word | 00H 00H-Register Address | 0H 02H-Data Length(Unit:Word)| C4H 0BH- CRC Check
Slave Response: 01H 03H 04H 01H F4H 00H 01H 7BH FDH
Note:01H-Adress | 03H-Command Word | 04H Data Length(Unit: Byte)| 01H F4H 00H 01H-Location Data | 7BH FDH- CRC Check
Parameter Setting (Take effect after re power up):
Parameter Sheet:
| Hexadecimal | Parameter | Hexadecimal | Parameter |
| 01 | 4800bps Baud Rate | 05 | 115200Bps |
| 02 | 9600bps Baud Rate | 00 | Clockwise: Data Increase |
| 03 | 19200bps Baud Rate | 01 | Anticlockwise: Data Decrease |
| 04 | 38400bps Baud Rate |
Note:(1).Register Address 0044H, Length 0001H, Data High Byte Fixed to be 00H,Low Byte to be Changed ID;
(2).Register Address 0045H, Length 0001H, Data High Byte Fixed to be 00H,Low Byte to be Baud Rate;
(3).Register Address 0046H, Length 0001H, Data High Byte Fixed to be 00H,Low Byte be Counting Direction;
(4).Register Address 004AH, Length 0002H, Four bytes from High to low be Current preset Location Value(Note not to Exceed physical position limit);
Parameter Changing Example:
a . Change ID(01H à 02H):
Master Send:01H 06H 00H 44H 00H 02H 48H 1EH
Slave Response:02H 06H 00H 44H 00H 02H 48H 2DH
Note:01H-address | 06H-command word | 00H 44H-Rigester Address | 00H 02H-Data | 48H 1EH-CRC Check(48H 2DH-CRC Check)
b. Change Baud Rate (BR change to be 04H-38400bps):
Master Send:01H 06H 00H 45H 00H 04H 99H DCH
Slave Response:01H 06H 00H 45H 00H 04H 99H DCH
Note:01H-Address|06H-Command Word|00H 45H-Register Address|00H 04H-Data|99H DCH- CRC Check
c.Change Counting Direction (Counting Direction 01H-Anti-clockwise,Current Location Value Must Be set After Change)
Master send:01H 06H 00H 46H 00H 01H A9H DFH
Slave Response:01H 06H 00H 46H 00H 01H A9H DFH
Note:01H-address|06H-command word|00H 46H-Register Address|00H 01H-Data|A9H DFH- CRC Check
d. Set Current Position Value(current position Value change to be 00000000H)
Master Send:01H 10H 00H 4AH 00H 02H 04H 00H 00H 00H 00H 77H E0H
Note:01H-address|10H-command word|00H 4AH-register address|00H 02H-data length(Unit:Word)|04H-Data Length(Unit:Byte)|00H 00H 00H 00H-Data|77H
| Dimensions |
GERTECH is an technical enterprise Located in Weihai City ShanDong Province, China, has been providing Professional Industrial Automation Sensors Solutions for hundreds of enterprises all over the world since 2004. We offer the world's broadest range of encoders for motion feedback control. For 17 years, Gertech have been providing innovative, customized system solutions for virtually any heavy-duty, industrial, servo- or light-duty application,and is committed to our people, customers and community and strives for excellence in safety, quality, delivery and customer service.
Gertech Manufactures and supplies safety systems for the door and gate market. The product portfolio includes optical and pneumatic sensing edges, bumpers, and photo-eye sensors which meet international standards for safety devices. These products have applications in commercial, bus, and train doors as well as production machines.
Our Main Products: A. Incremental Encoder; B. Programmable Incremental Encoder; C. Single-turn and multi-turn Absolute Encoder with Parallel, SSI, Modbus, Profibus, Canopen, Profinet, DeviceNet and EtherCaAT interfaceS; D. Draw Wire Encoder; E. Manual Pulse Generator; F. Optical Encoder Kit; G. Servo motor encoder;
Certificates: CE,ROHS,ISO9001,ETC.Gertech Sensors are widely applied in the textile machinery, hoisting cranes, CNC machine, experimental machine, satellite communication, electric cars, water conservancy project, nuclear power equipment, High-speed railway, mobile equipment, wind power generation, packaging and printing machine, lifting equipment, aeronautical and space industry, Iron and steel reinforcement manufacturing equipment, port machinery, health communications and many other fields in advanced manufacturing industries, automatic assembly line and so on.
About Payment:
Payment can be made through bank transfer, west union;
Quality Control:
Professional and experienced quality inspection team leaded by Mr. Hu, can ensure the quality of each product when it leaves the factory.Mr. Hu has more than 10 years experience in the industries of encoders,
About technique support:
Professional and experienced technique team leaded by Doctor Zhang, has accomplished many breakthroughs in the development of encoders, apart from normal incremental encoders, Gertech now has finished Profinet, EtherCAT, Modbus-TCP and Powe-rlink development;
About Inquiry:
Any inquiry will be replied within 24 hours, and customer also can add what's app or wechat for Instant messaging, our marketing team and technical team will offer professional service and suggestion;
Guarantee policy:
Gertech offers 1year warranty and life-long technical support;
We're here to help. Our engineers and encoder experts will respond quickly to your toughest, most technical encoder questions.
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