Baumer GXM2S

Absolute encoder

The GXM2S is a high-resolution absolute encoder from Baumer, designed for precise position measurement in industrial applications. Featuring a blind hollow shaft and an integrated SSI interface, it is suitable for multiturn applications that require accurate and reliable data.

Datasheet:

• Voltage Supply: 10...30 VDC, 5 VDC ±10%
• Reverse Polarity Protection: Yes
• Consumption w/o Load: ≤50 mA (24 VDC)
• Initializing Time: Typically 20 ms after power on
• Interface: SSI, Incremental A 90° B (optional)
• Function: Multiturn
• Steps per Revolution: ≤16384 / 14 bit
• Number of Revolutions: 4096 / 12 bit
• Absolute Accuracy: ±0.025 °
• Sensing Method: Optical
• Code: Gray or binary
• Code Sequence: CW/CCW coded by connection
• Inputs: SSI clock, Control signals UP/DOWN inv. and zero
• Output Stages: SSI data: Linedriver RS422, Diagnostic outputs push-pull
• Incremental Output: 2048 pulses A90°B + inverted
• Interference Immunity: EN 61000-6-2
• Emitted Interference: EN 61000-6-4
• Diagnostic Function: Self-diagnosis, Multiturn sensing
• Approval: UL approval / E63076

Mechanical Design:

• Size (Flange): ø58 mm
• Shaft Type: ø12...15 mm (blind hollow shaft)
• Protection EN 60529: IP 54, IP 65 (optional)
• Operating Speed: ≤6000 rpm (mechanical), ≤6000 rpm (electric)
• Starting Acceleration: ≤1000 U/s²
• Starting Torque: ≤0.015 Nm (+25 °C, IP 54)
• Rotor Moment of Inertia: 20 gcm²
• Material: Housing: aluminium, Flange: aluminium
• Operating Temperature: -25...+85 °C, -40...+85 °C (optional)
• Relative Humidity: 95 % non-condensing
• Resistance: EN 60068-2-6 Vibration ±0.75 mm - 10-58 Hz, 10 g - 58-2000 Hz, EN 60068-2-27 Shock 100 g, 6 ms
• Weight: Approx. 400 g
• Connection: Connector M23, 12-pin