GMA-S Series SSI Interface Multi-Turn Absolute Encoder

GMA-S Series absolute encoder is an SSI multiturn absolute encoder. Synchronous Serial Interface (SSI) is point-to-point so slaves cannot be bussed together. SSI is uni-directional, data transmission being only from slave to master. It is therefore not possible for a master to send configuration data to a slave. Communication speeds are limited to 2 Mbits/sec.Many SSI devices implement double transmissions to improve communication integrity. The master compares the transmissions to detect errors. Parity checking (Appendix) further improves error detection.SSI is a relatively loose standard and many modified versions exist including the option for an incremental AqB or sin/cos interface. In this implementation absolute position is only read at startup.Housing Dia.:38,50,58mm; Solid/hollow Shaft Diameter:6,8,10mm;  Resolution: Single turn max.16bits;  Interface:SSI; Output Code: Binary, Gray, Gray Excess, BCD; Supply Voltage:5v,8-29v;   

Products Details

GMA-S Series SSI Interface Multi-Turn Absolute Encoder GMA-S Series absolute encoder is an SSI multiturn absolute encoder. Synchronous Serial Interface (SSI) is point-to-point so slaves cannot be bussed together. SSI is uni-directional, data transmission being only from slave to master. It is therefore not possible for a master to send configuration data to a slave. Communication speeds are limited to 2 Mbits/sec.Many SSI devices implement double transmissions to improve communication integrity. The master compares the transmissions to detect errors. Parity checking (Appendix) further improves error detection.SSI is a relatively loose standard and many modified versions exist including the option for an incremental AqB or sin/cos interface. In this implementation absolute position is only read at startup.Housing Dia.:38,50,58mm; Solid/hollow Shaft Diameter:6,8,10mm;  Resolution: Single turn max.16bits;  Interface:SSI; Output Code: Binary, Gray, Gray Excess, BCD; Supply Voltage:5v,8-29v;  Certificates: CE,ROHS,KC,ISO9001 Leading time: Within a week after full payment; Delivery by DHL or other as per discussed; ▶Housing Diameter:38,50,58mm; ▶Solid/hollow Shaft Diameter:6,8,10mm; ▶Interface: SSI; ▶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, military 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: SSI/NPN/PNP open collector, Push pull, Line Driver;
Output Code: Binary, Gray, Gray Excess, BCD
Supply Voltage: 8-29V
Max. Frequency Response 33Khz~4Mhz
 

Item

Min

Max

Input Signal

Clock

Voltage

VIH 2.1v Vcc
VIL   0.9v

Output Signal

Data

Voltage

VOH 2.0v Vcc
VOL   0.5v

Current

IO   15mA
Mechanical Data
Start Torque 4 x 10-3 N•M
Max. Shaft Loading Axial: 5-30N, Radial:10-20N;
Max. Rotary Speed 5000rpm
Weight 160-200g
Environment Data
Working Temp. -30~80℃
Storage Temp. -40~80℃
Protection Grade IP54
 
Connection Leading:
  Signal Vcc GND

Clock+

Clock-

Data+

Data-

Zero

 
  Colour Brown Blue

White

Gray

Black

Purple

Yellow

 
Interface
Parameter Symbol Min. Typ. Max. Unit Note
Clock Period tCL 0.25   2 x tM μs  
Clock High tCHL 0.1   tM μs  
Clock Low tCLO 0.1   tM μs  
Monoflop time tM 15 19 25 μs  
Output Model: 1) Single Data Output Model    Common Read      Repeat Read   2) Continuous Data Output Model    
Ordering Code
Dimensions
  Note: ▶Adopt elastic soft connection shall be applied between encoder shaft and output shaft of user end to avoid damage of encoder shaft system due to serial movement and run out of user shaft. ▶Please pay attention to the allowable axle load during installation. ▶Make Sure that the difference Between Axial Degree of encoder shaft and user output shaft shall be no more than 0.20mm, and the deviation angle with axis shall be less than 1.5 °. ▶Try to avoid knocking and falling collision during installation; ▶Do not connect the power line and the ground wire in reverse. ▶The GND wire shall be as thick as possible, generally larger than φ 3. ▶Output lines of encoder shall not be overlapped with each other to avoid damaging output circuit. ▶Signal line of encoder shall not be connected to DC power supply or AC current to avoid damaging output circuit. ▶The motor and other equipment connected to the encoder shall be well grounded without static electricity. ▶Shielded cable shall be used for wiring. ▶Before starting the machine, carefully check whether the wiring is correct. ▶During long-distance transmission, the signal attenuation factor shall be considered, and the output mode with low output impedance and strong anti-interference ability shall be selected. ▶Avoid using in strong electromagnetic wave environment. Five steps let you know how to select your encoder: 1.If you've already used encoders with other brands, plz feel free to send us the information of the brand info and encoder info, like model no, etc, our engineer will advise you with our euqivalent replacement at a high cost performance; 2.If you want to find an encoder for your application, plz first select encoder type: 1) Incremental encoder 2) Absolute encoder 3) Draw Wire Sensors 4) Manual Pluse Generator 3. Choose your output format(NPN/PNP/LINE DRIVER/PUSH PULL for incremental encoder) or interfaces(Parallel, SSI, BISS, Modbus, CANopen, Profibus, DeviceNET, Profinet, EtherCAT, Power Link, Modbus TCP); 4. Select the resolution of the encoder, Max.50000ppr for Gertech incremental encoder, Max.29bits for Gertech Absolute Encoder; 5. Select the housing Dia and shaft dia. of the encoder; Gertech is popular equivalent replacement for similar foreign products such as Sick/Heidenhain/Nemicon/Autonics/ Koyo/Omron/Baumer /Tamagawa/Hengstler /Trelectronic/Pepperl+Fuchs/Elco/Kuebler ,ETC. Gertech Equivalent replace: Omron: E6A2-CS3C, E6A2-CS3E, E6A2-CS5C, E6A2-CS5C, E6A2-CW3C, E6A2-CW3E, E6A2-CW5C, E6A2-CWZ3C, E6A2-CWZ3E, E6A2-CWZ5C; E6B2-CS3C, E6B2-CS3E, E6B2-CS5C, E6A2-CS5C,E6B2-CW3C, E6B2-CW3E, E6B2-CW5C, E6B2-CWZ3C, E6B2-CWZ3E, E6B2-CBZ5C; E6C2-CS3C, E6C2-CS3E, E6C2-CS5C, E6C2-CS5C,E6C2-CW3C, E6C2-CW3E, E6C2-CW5C, E6C2-CWZ3C, E6C2-CWZ3E, E6C2-CBZ5C; Koyo: TRD-MX TRD-2E/1EH, TRD-2T, TRD-2TH, TRD-S, TRD-SH, TRD-N, TRD-NH, TRD-J TRD-GK, TRD-CH Series Autonics: E30S, E40S, E40H,E50S, E50H, E60S, E60H Series Packaging Details The rotary encoder is packed in standard export packaging or as required by buyers; Five steps let you know how to select your encoder: 1.If you've already used encoders with other brands, plz feel free to send us the information of the brand info and encoder info, like model no, etc, our engineer will advise you with our euqivalent replacement at a high cost performance; 2.If you want to find an encoder for your application, plz first select encoder type: 1) Incremental encoder 2) Absolute encoder 3) Draw Wire Sensors 4) Manual Pluse Generator 3. Choose your output format(NPN/PNP/LINE DRIVER/PUSH PULL for incremental encoder) or interfaces(Parallel, SSI, BISS, Modbus, CANopen, Profibus, DeviceNET, Profinet, EtherCAT, Power Link, Modbus TCP); 4. Select the resolution of the encoder, Max.50000ppr for Gertech incremental encoder, Max.29bits for Gertech Absolute Encoder; 5. Select the housing Dia and shaft dia. of the encoder; Gertech is popular equivalent replacement for similar foreign products such as Sick/Heidenhain/Nemicon/Autonics/ Koyo/Omron/Baumer /Tamagawa/Hengstler /Trelectronic/Pepperl+Fuchs/Elco/Kuebler ,ETC. Gertech Equivalent replace: Omron: E6A2-CS3C, E6A2-CS3E, E6A2-CS5C, E6A2-CS5C, E6A2-CW3C, E6A2-CW3E, E6A2-CW5C, E6A2-CWZ3C, E6A2-CWZ3E, E6A2-CWZ5C; E6B2-CS3C, E6B2-CS3E, E6B2-CS5C, E6A2-CS5C,E6B2-CW3C, E6B2-CW3E, E6B2-CW5C, E6B2-CWZ3C, E6B2-CWZ3E, E6B2-CBZ5C; E6C2-CS3C, E6C2-CS3E, E6C2-CS5C, E6C2-CS5C,E6C2-CW3C, E6C2-CW3E, E6C2-CW5C, E6C2-CWZ3C, E6C2-CWZ3E, E6C2-CBZ5C; Koyo: TRD-MX TRD-2E/1EH, TRD-2T, TRD-2TH, TRD-S, TRD-SH, TRD-N, TRD-NH, TRD-J TRD-GK, TRD-CH Series Autonics: E30S, E40S, E40H,E50S, E50H, E60S, E60H Series Packaging Details The rotary encoder is packed in standard export packaging or as required by buyers; FAQ: 1) How to select an encoder? Before ordering encoders, you could clearly know which type of encoder you may need. There are incremental encoder and absolute encoder, after this, our sale-service department would better work for you. 2) What specifications are requested before order an encoder? Encoder type----------------solid shaft or hollow shaft encoder External Diameter----------Min 25mm, MAX 100mm Shaft Diameter---------------Min shaft 4mm, Max shaft 45mm Phase & Resolution---------Min 20ppr, MAX 65536ppr Circuit Output Mode-------you could choose NPN,PNP,Voltage, Push-pull,Line driver, etc Power Supply Voltage------DC5V-30V 3) How to choose a right encoder by yourself ? Exact Specification Description Check The Installation Dimensions Contact Supplier to get more details 4) How many pieces to start ?  The MOQ is 20pcs .Less quantity is also ok but the freight  is  higher. 5) Why choose "Gertech" Brand Encoder? All encoders are designed and developed by our own engineer team since year 2004,and most of the electronic component of encoders are imported from overseas market. We own the Anti-static and no-dust workshopand our products pass the ISO9001. Never let our quality down,because quality is our culture. 6) How long is your lead time? Short lead time----3 days for samples,7-10days for mass production 7) what is your guarantee policy? 1year warranty and life-long technical support 8)What are the benefit if we become your agency ? Special prices, Market protection and supporting. 9)What is the process to become Gertech agency? Please send us enquiry,we will contact you as soon as possible. 10)What is your production capacity? We produce 5000pcs every week.Now we are building second phrase production line.  

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