GSA-S Series Single-Turn SSI Absolute Rotary Encoder
1. Product Basic Information
Parameter | Description |
---|---|
Product Name | GSA-S Series Single-Turn SSI Absolute Rotary Encoder3 |
Interface | SSI (Synchronous Serial Interface) |
Resolution | Single-turn, up to 16 bits |
Supply Voltage | Mainly 8–29V (a 5V version is also available) |
Output Code | Binary, Gray, Gray Excess, BCD |
Frequency Response | 33 kHz ~ 4 MHz |
Certificates | CE, ROHS, KC, ISO9001 |
Lead Time | Within a week after full payment; shipped via DHL or other carriers as agreed |
Application Fields | Automatic control and measurement systems in machinery manufacturing, shipping, textiles, printing, aviation, military, test machines, elevators, etc. |
2. Dimensions & Product Features
Parameter | Options / Range | Unit | Notes |
---|---|---|---|
Housing Diameter | 38, 50, 58 | mm | |
Solid/Hollow Shaft Diameter | 6, 8, 10 | mm | |
Resolution | Single-turn up to 16 | bit | |
Supply Voltage | 8 – 29 | V | (A 5V version is also available) |
Output Code | Binary, Gray, Gray Excess, BCD | ||
Interface | SSI | ||
Max. Frequency Response | 33 kHz – 4 MHz |
3. Electrical Data
3.1 Input/Output Signal Voltage and Current
Parameter | Minimum | Maximum | Unit | Notes |
---|---|---|---|---|
Input Signal – Clock (VIH) | 2.1 | Vcc | V | |
Input Signal – Clock (VIL) | — | 0.9 | V | |
Output Signal – Data (VOH) | 2.0 | Vcc | V | |
Output Signal – Data (VOL) | — | 0.5 | V | |
Output Current (IO) | — | 15 | mA |
3.2 Interface Parameters (Timing Requirements)
Parameter | Symbol | Minimum | Nominal | Maximum | Unit | Notes |
---|---|---|---|---|---|---|
Clock Period | tCL | 0.25 | 2×tM | — | μs | |
Clock High Time | tCHL | 0.1×tM | — | — | μs | |
Clock Low Time | tCLO | 0.1×tM | — | — | μs | |
Monostable Pulse Time | tM | 15 | 19 | 25 | μs |
4. Mechanical Data
Parameter | Range | Unit | Notes |
---|---|---|---|
Starting Torque | 4 × 10⁻³ | N•M | |
Max. Axial Load | 5 – 30 | N | |
Max. Radial Load | 10 – 20 | N | |
Max. Rotary Speed | 5000 | rpm | |
Weight | 160 – 200 | g |
5. Environmental Data
Parameter | Range | Unit | Notes |
---|---|---|---|
Working Temp. | -30 ~ 80 | ℃ | |
Storage Temp. | -40 ~ 80 | ℃ | |
Protection Grade | IP54 |
6. Wiring Color Code
Signal | Terminal | Color |
---|---|---|
Vcc | Vcc | Brown |
GND | GND | Blue |
Clock+ | Clock+ | White |
Clock– | Clock– | Gray |
Data+ | Data+ | Black |
Data– | Data– | Purple |
Zero | Zero | Yellow |
7. Output Models
1) Single Data Output Models:
Common Read
Repeat Read
2) Continuous Data Output Model
(For specific ordering codes and dimensions, please refer to the order details or product drawings.)
8. Additional Information / Notes
Installation Requirements:
An elastic soft coupling should be used between the encoder shaft and the user’s output shaft to avoid damage to the encoder shaft system caused by serial movement or runout.
Pay attention to the allowable axial load during installation.
The difference in axial positioning between the encoder shaft and the user output shaft should not exceed 0.20 mm, and the angular deviation from the axis should be less than 1.5°.
Avoid knocking, collisions, or drops during installation.
Do not reverse the power and ground wires.
The ground wire should be as thick as possible (generally larger than φ3).
Encoder output wires should not overlap with each other to avoid damaging the output circuit.
The encoder’s signal lines should not be connected directly to DC power or AC current to avoid damage.
The motor and other equipment connected to the encoder must be well-grounded to prevent static electricity damage.
Use shielded cables for wiring to ensure strong anti-interference capability.
Check the wiring carefully before starting the machine.
For long-distance transmission, consider signal attenuation and select an output mode with low output impedance and strong anti-interference ability.
Avoid use in strong electromagnetic interference environments.
Packaging:
Standard export packaging, or customized as per customer requirements.
Payment Methods:
Bank transfer, Western Union, and PayPal.
Delivery:
Shipment within one week after full payment (DHL or other agreed logistics).
Quality Control:
A professional and experienced quality inspection team, led by Mr. Hu (with over 10 years of experience in the encoder industry), ensures product quality for every unit.
Technical Support:
Led by Dr. Zhang, the technical team has achieved breakthroughs in encoder development, including Profinet, EtherCAT, Modbus-TCP, and Power-Link products, in addition to standard incremental encoders.
After-Sales Support:
1-year warranty and lifetime technical support.
Contact Email:
Terry_Marketing@gertechsensors.com (for expedited options and detailed inquiries).
9. Selection Guide
For Replacement of Existing Brands:
If you are already using encoders from other brands, please provide the brand and model information. Our engineers can recommend a cost-effective equivalent replacement.For Application-Specific Needs:
First, choose the encoder type:Manual Pulse Generator
Select Your Output Format / Interface:
For incremental encoders, choose between NPN / PNP / Line Driver / Push Pull output, or select from interfaces such as Parallel, SSI, BISS, Modbus, CANopen, Profibus, DeviceNET, Profinet, EtherCAT, Power Link, Modbus TCP, etc.
Resolution Requirements:
Gertech incremental encoders: up to 50,000 ppr
Gertech absolute encoders: up to 29 bits
Dimensions:
Select the encoder’s housing diameter and shaft diameter according to your application requirements.
10. Gertech Equivalent Replacement Products
Gertech offers high cost-performance equivalent replacements for well-known foreign products, such as:
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