SHG-AB, SHG-AG and SHG-AS Absolute Linear Encoders
Position Sensors & Encoders
SSI (Synchronous Serial Interface) is a patented absolute encoder protocol invented by Max Stegmann GmbH. The transfer of position data is much faster than RS232 or RS485, making this protocol ideal for closed loop motion control. There are several variations of SSI currently available. Developed to meet a wide range of feedback applications, these absolute linear encoders provide a true absolute position immediately upon power-up. The encoder does not use batteries or static memory to retain the positional data. True position can be reacquired once power is applied, regardless of duration or power-off movements.
Industries
Distributors Stock
Need more information?
Contact us to request pricing, availability and customization options
Contact UsSpecifications
| Output signal |
SHG-AB = SSI Binary - 24 data bits, no parity SHG-AG = SSI Gray Code - 24 data bits, no parity SHG-AS = SSI Gray Code - 24 data bits, even parity |
| Accuracy / meter | +/- 0.0004", +/- 0.0002", +/- 0.001" (+/- 10 μm, +/- 5 μm, +/- 3 μm) |
| Resolutions | 10 μm, 5 μm, 1 μm, 0.5 μm |
| Scale travels | 4" to 137.8" (102 mm to 3.5 m) |
| Scale diameter | 0.601" (15.25 mm) |
| Reader head dimensions | 2.05"H x 5.16"L x 1.10"D (52 mm x 131 mm x 28 mm) |
| Reference marker | N/A |
| Maximum traverse rate | N/A |
| Power supply | 5 VDC +/- 5%, < 350 mA |
| Shock (11 ms) | 100g (IEC 69-2-6) |
| Vibration (55-2000 Hz) | 30g (IEC 68-2-27) |
| Sample period | 50 μs |
| Environmental rating | IP67, fully submersible (IEC 529) - exceeds NEMA 6 |
| Operating temperature | 32°F to 131°F (0°C to 55°C) |
| Coefficient of expansion | 12 x 10-6 K |
| Scale material | 316 stainless steel |
| Overall scale length | Scale travel length + 10.2" (258 mm) |
| Standard cable | 15 core, 11.5' (3.5 m) armored |
| Maximum cable length | 65.6' (20 m) |
| Standard connector | 15 pin "D" type |
| EMC compliance | BS EN 61000-6-2 and BS EN 61000-6-4 |
| Resolutions | Custom resolutions available |
| Non-armored cable | PUR (polyurethane) |
| Connectors |
|
| Cable lengths | 22' (7m) or 19.68" (0.5m) |