Single-turn Absolute Encoder A/759UMA
- Category: Encoder, Absolute Encoder, Single-turn Absolute Encoder, SENSORS
For engineers requiring precise positioning without counting pulses, this encoder offers a robust solution for demanding industrial environments. It addresses the need for immediate absolute position readings in control systems where continuous motion is critical and an external homing system is unavailable.
The technology allows for configuring the maximum physical resolution up to 65,536 revolutions via SSI or RS422 interface, facilitating integration with modern PLCs without the need for additional programming cables. It supports incremental Sine/Cosine outputs at 1024 positions or a binary configuration adaptable to the specific motor application.
Its metal housing construction ensures durability against impacts and vibrations, operating stably between -20 and +85 °C. Available at guemisa.es with sealed bearing options for maximum service life in critical applications. guemisa.es.
- Programmable up to 65536 x 4096 revolutions with SSI interface and incremental Sin/Cos outputs to 1024 positions or RS422 up to 16384.
- Available in a metal housing with a hollow shaft up to Ø 15 mm with a spring for direct mounting on motors without couplings.
- Impact resistance of 50 G (11 ms) and vibration resistance of 12 G (10 ÷ 2000 Hz) ensures reliability in harsh environments.
- Stable 10 to 30 V DC power supply with a maximum consumption of 200 mA for efficient integration into standard power systems.
Technical Frequently Asked Questions
How does the incremental Sin/Cos output of the SSI interface differ in the 759UMA model?
The SSI interface allows synchronous transmission with a clock signal for absolute reading, while the incremental Sin/Cos output offers 1024-position resolution, ideal for speed control. The model supports both configurations depending on the needs of the control system and PR programming.
What alignment precautions are required for the encoder shaft when mounted directly?
When mounting directly onto motor shafts without couplings, concentricity must be ensured to prevent excessive radial loads. The hollow stainless steel shaft Ø 6 ÷ 15 mm supports a radial/axial load of 4 kg according to mechanical specifications.
What bearing and connector options are available for the 759UMA model?
Sealed, low-torque, or tropicalized bearings can be ordered via option Z. The connection includes a 1m cable with IP65 protection at the output, compatible with Y unbreakable disc variants or X compressed air as per the catalog.
What are the operating temperature and IP protection limits of the Encoder?
It operates stably between -20 and +85 °C, with storage up to -30 to +85 °C. IP65 protection is guaranteed on the output side with included cable, while the shaft can be standard or watertight depending on the specific order option.
How do you program the maximum physical resolution without needing additional cables?
Programming (PR option) is done via software on a PC connected to the USB port that powers the encoder, or via an RS422 interface for ASCII data exchange. It allows configuration of Gray or Binary mode and counting direction directly from the controller.
Properties
| Feature | Specification |
|---|---|
| Maximum resolution | Programmable: Gray or Binary |
| Power supply (VCC) | 10 ÷ 30 V DC |
| Maximum clock frequency | 500 kHz |
| Operating temperature | -20 – +85 °C |
| Tickets | SSI Clock, DIR, PRESET |
| Interface | (S1) SSI with preset / (PR) Programmable |
| Weight | 340 g |
| Housing Material | Metallic (Mechanical characteristics) |
| Axle Material | Stainless steel Ø 6 ÷ 15 mm |
| IP Protection Output | IP65 with 1m cable included |
| Maximum Radial/Axial Load | 4 Kg |
| Impact Resistance | 50 G x 11 ms |
| Vibration Resistance | 12 G (10 ÷ 2000 Hz) |
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