MM58H Multi-Turn Absolute Encoder

58 mm Flange | Robust Oil/Dust Housing | 2^24 Resolution in 4096 Rotations | Operating Temp. 0 – +70 °C | Max. Load 3 kg | Weight 580 g | Vibration 12 G | Impacts 50 G x 11 ms | IP65 / IP64 Protection (shaft) | Max. RPM 4000 / 2000 RPM | Power Supply 5V / 8-24V / 18-28V | Parallel / Serial SSI Output

Installations in harsh environments with high levels of dust, humidity, and lubricating oils often cause rapid degradation of precision electronics. The MM58H multi-turn absolute encoder overcomes this challenge thanks to its extremely robust housing with a Ø58 mm flange, specifically designed to ensure hermetic sealing and durability in heavy industrial machinery.

It provides continuous and reliable position recording thanks to its maximum resolution of 2^24 positions distributed over a 4096-revolution range. It employs an optical reading system using phototransistors and an LED light source with a guaranteed lifespan of over 100,000 hours, ensuring sustained accuracy without mechanical degradation of the sensor.

This unit weighs 580 grams and its stainless steel shaft supports radial and axial loads of up to 3 kg. Its advanced electronics allow for multiple output interfaces (Parallel and Serial SSI) and support both front mounting with screws and servo-mount installation. Available upon request. guemisa.es.

  • Ø58 mm flange compatible with front fixing by screws or servo-mount clamps.
  • Optimized mechanical design to be completely resistant to oil, moisture, and dust.
  • IP65 protection on the output and different speed profiles up to 5000 RPM in low torque versions.
  • Multiple supported power supply voltages (5V, 8÷24V and 18÷28V) for maximum electrical versatility.

Technical Frequently Asked Questions

What is the IP protection level of the housing and shaft?

In its standard version, the device features IP65 protection on the output connection and IP64 protection on the shaft. For more critical applications, the "Z" Option incorporates sealed bearings that increase shaft protection to IP65, although it limits the maximum speed to 2000 RPM.

What electronic output configurations are available?

The MM58H can be configured with standard Parallel output or SSI Serial communication (Option S), using Gray or Binary encoding. Additionally, NPN Open Collector or NPN Emitter (70mA + PTC) output electronics configurations are available.

Is the encoder suitable for extreme thermal conditions?

The nominal operating range is 0 to +70 °C. However, if your application is in extremely cold or hot environments, the encoder can be equipped with Options "A" (for high temperature) and "L" (for low temperature) upon customer request.

Properties

FeatureSpecification
Vcc Power Supply5V±5%, 8÷24V, 18÷28V
AxisStainless steel
Device Weight580 g
Maximum Radial/Axial Load3 Kg
Absolute Resolution2^24 positions in 4096 turns
Maximum Operating Frequency.50 kHz
Operating Temperature0 – +70 °C
IP protectionStandard: IP65 outlet / IP64 shaft. Sealing: IP65 shaft
Maximum Continuous RPM4000 (standard) / 2000 (sealed) / 5000 (low torque)
Current Consumption200÷400 mA (depending on bits)
Impact Resistance50 G x 11 ms
Vibration Resistance12 G (10 – 2000 Hz)
Housing MaterialAnodized Aluminum (Oil/Dust/Moisture Resistant)
MM58H Multi-Turn Absolute Encoder
Dimension drawing of the MM58H Absolute Multi-turn Encoder

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