GM400.020A002 SSI Absolute Encoder Custom Replacement Solution

We offer a fully customized replacement solution for the GM400.020A002 encoder, designed to provide seamless compatibility with the original Baumer model. Our approach follows a 1:1 non-standard customization process, ensuring that the mechanical dimensions, electrical interfaces, and mounting features match the original precisely. With a production cycle of just 10–15 working days, our solution dramatically shortens delivery time compared to traditional overseas supply channels. This fast turnaround is particularly valuable for operators of wind turbines and industrial automation equipment, where minimizing downtime is critical for maintaining productivity and reducing maintenance costs. Our custom replacement not only guarantees reliable performance but also provides a cost-effective alternative to extended lead times from OEM suppliers, ensuring continuity in operations without compromising quality.

The GM400.020A002 replacement encoder is engineered for high-precision absolute position feedback under demanding conditions. As a multiturn SSI encoder using optical sensing technology, it delivers accurate singleturn resolution of up to 14 bits and multiturn resolution of 16 bits, meeting the stringent requirements of wind turbine pitch and yaw control, as well as industrial motion control systems. The encoder is designed with a clamping flange for robust mechanical installation, supports electronic zero-point adjustment for simplified commissioning, and includes a counting direction input for flexible integration. Optional incremental outputs are available, providing extended functionality for complex control architectures. Additionally, the encoder is built to withstand strong magnetic fields, ensuring stable and reliable operation even in environments with significant electromagnetic interference, such as nacelles, generator housings, or heavy-duty industrial machinery.

Replacement model real product photos available.

GM400.020A002 SSI Absolute Encoder Custom Replacement Solution-LinkChina

Technical Data

Electrical Ratings

ParameterValues
Voltage supply10…30 VDC5 VDC ±10 %
Reverse polarity protectionYes (10…30 VDC) / No (5 VDC)
Consumption w/o load≤50 mA (24 VDC)≤80 mA (5 VDC)
Initializing time typ.20 ms after power on
InterfaceSSIIncremental A 90° B (optional)
FunctionMultiturn
Steps per revolution≤16384 / 14 bit
Number of revolutions≤65536 / 16 bit
Absolute accuracy±0.025°
Sensing methodOptical
CodeGray or binary
Code sequenceCW/CCW coded by connection
InputsSSI clock; Control signals UP/DOWN inv. and zero; SSI data outputs RS422
Output stagesDiagnostic: 1024, 2048 pulses + invertedIncremental output: 512, 1024, 2048 push-pull
Interference immunityEN 61000-6-2
Emitted interferenceEN 61000-6-4
Diagnostic functionSelf-diagnosis; Multiturn sensing
ApprovalUL approval / E63076

Mechanical Design

ParameterValues
Size (flange)∅58 mm
Optional
Stainless steel design
Corrosion protection for offshore applications
Parameter CategoryValues
Shaft typeα10 design solid shaft
FlangeClamping flange
Protection EN 60529IP 54 (without shaft seal)IP 65 (with shaft seal)
Operating speed≤10000 rpm (mechanical)≤6000 rpm (electric)
Angular acceleration≤25000 rad/s² (UB = 0 VDC)≤25000 rad/s² (UB = 10…30 VDC, 5 VDC)
Starting torque≤0.015 Nm (+25 °C, IP 54)≤0.03 Nm (+25 °C, IP 65)
Rotor moment of inertia20 g·cm²
Admitted shaft load≤20 N axial≤40 N radial
MaterialHousing: aluminiumFlange: aluminium
Operating temperature-25…+85 °C-40…+85 °C (optional)
Relative humidity95 % non-condensing
ResistanceEN 60068-2-6Vibration ≤0.75 mm - 10 - 58 Hz, 10 g - 58 - 2000 HzEN 60068-2-27Shock 200 g, 6 ms
Weight approx.400 g
ConnectionConnector M23, 12-pinConnector M12, 8-pinCable 1 m
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