ME15 Absolute SSI Rotary Shaft Encoder
Description
AMCI ME15 Absolute SSI Rotary Shaft Encoder
AMCI's ME15 SSI rotary shaft encoder is designed for cost sensitive applications that require bullet-proof reliability. The ME15 magnetic encoder measures just under 1.5" in diameter and is engineered for heavy-duty operation across a variety of industries. The encoder's IP67 rating protects against dust and moisture, and the sensor's compact design only relies on two components, ensuring trouble free operation.
AMCI's ME15 SSI encoder utilizes a small diametrically polarized magnet and a custom ASIC that contains an array of Hall sensors that generate a voltage when exposed to a magnetic field. The ASIC detects the change in magnetic flux distribution as the magnet rotates above it and outputs a voltage level that represents the angular position. The ASIC also has the ability to ignore any interfering magnetic fields, allowing the ME15 to operate in areas of high external fields.
Summary: The ME15’s small size, high reliability, IP67 protection rating and low cost make it an ideal replacement for potentiometers and small industrial encoders. A sturdy machined housing and a high resistance to shock and vibration make these encoders an ideal fit and capable withstanding difficult environmental conditions, including electromagnetic interference (EMI) noise generated by neighboring currents.
Available Versions (x=any selection)
ME15SSxS1Kxxx: Absolute SSI single-turn rotary encoder
Price | $524/ea
Note: Pricing is US Domestic only
Consult the factory for availability
Contact SalesSpecifications
Mechanical Specifications
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Package Style: | Size 15 (1.5" diameter) aluminum housing with servo mounting |
| Housing: | Aluminum housing |
| Shaft: | 1/4" or 6mm diameter stainless |
| Shaft loading: | 1/4" and 6mm shafts: 10 lbs. radial/5 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load. |
| Starting Torque: | 2 oz. in max @25° C (with standard shaft seal) 0.2 oz. in max @25° C (no shaft seal) |
| Moment of inertia: | 1.75 * 10^-5 oz-in-sec^2 |
| Maximum speed: | 20,000 RPM |
| Connection Options: | -Seven pin, M9, End Connector -Integral Cable in 1.5’, 3’, 6’ or 10’ lengths 28 AWG, 7 conductors with overall shield |
Mechanical Specifications
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Package Style: | Size 15 (1.5" diameter) aluminum housing with servo mounting |
| Housing: | Aluminum housing |
| Shaft: | 1/4" or 6mm diameter stainless |
| Shaft loading: | 1/4" and 6mm shafts: 10 lbs. radial/5 lbs. axial maximum shaft loading. Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load. |
| Starting Torque: | 2 oz. in max @25° C (with standard shaft seal) 0.2 oz. in max @25° C (no shaft seal) |
| Moment of inertia: | 1.75 * 10^-5 oz-in-sec^2 |
| Maximum speed: | 20,000 RPM |
| Connection Options: | -Seven pin, M9, End Connector -Integral Cable in 1.5’, 3’, 6’ or 10’ lengths 28 AWG, 7 conductors with overall shield |
Electrical Specifications
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Resolution: | 10 bits, 1024 counts |
| Accuracy: | + 0.5° |
| Direction of Increasing Counts: | CW or CCW, specified when ordering |
| Rotational Measuring Range: | 360 degrees continuous |
| Protection: | Over and Reverse voltage protection, short circuit protected |
| Power Up Setting Time: | 20ms |
Electrical Specifications
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Resolution: | 10 bits, 1024 counts |
| Accuracy: | + 0.5° |
| Direction of Increasing Counts: | CW or CCW, specified when ordering |
| Rotational Measuring Range: | 360 degrees continuous |
| Protection: | Over and Reverse voltage protection, short circuit protected |
| Power Up Setting Time: | 20ms |
ENVIRONMENTAL SPECIFICATIONS
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Enclosure: | IP67 (valid only with working shaft seal) |
| Shock: | 50 G's for 11 mSec |
| Vibration: | 20 g, 5 to 2,000 Hz |
| Operating temperature: | -40° C to 85° C standard |
ENVIRONMENTAL SPECIFICATIONS
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Enclosure: | IP67 (valid only with working shaft seal) |
| Shock: | 50 G's for 11 mSec |
| Vibration: | 20 g, 5 to 2,000 Hz |
| Operating temperature: | -40° C to 85° C standard |
SSI Output Specifications
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Power Requirements: | 4.75 to 30 Vdc |
| Output code: | binary |
| Enable input: | When the Enable Input is high (+5Vdc) the ME15’s outputs will enter a High Impedance state. This disables the encoder and allows several SSI ME15 encoders to be multiplexed together. When the Enable Input is pulled low, the ME15 SSI encoder will output its SSI data. If the ME15 SSI encoder is to be used continuously, this can be achieved by simply connecting the Enable Input to DC Return. Input Voltage Range: Enabled (Low) = 0 to 0.8Vdc Disabled (High) = 2V to 5.5Vdc Input Current: 10uA @5Vdc for both High and Low states |
| SSI clock frequency: | 100kHz to 1MHz |
SSI Output Specifications
| ME15 Absolute SSI Rotary Shaft Encoder | |
|---|---|
| Power Requirements: | 4.75 to 30 Vdc |
| Output code: | binary |
| Enable input: | When the Enable Input is high (+5Vdc) the ME15’s outputs will enter a High Impedance state. This disables the encoder and allows several SSI ME15 encoders to be multiplexed together. When the Enable Input is pulled low, the ME15 SSI encoder will output its SSI data. If the ME15 SSI encoder is to be used continuously, this can be achieved by simply connecting the Enable Input to DC Return. Input Voltage Range: Enabled (Low) = 0 to 0.8Vdc Disabled (High) = 2V to 5.5Vdc Input Current: 10uA @5Vdc for both High and Low states |
| SSI clock frequency: | 100kHz to 1MHz |
Mating Connector: (sold seperately)
| AMCI Part Number | Binder Part Number |
| MS-9 | 99 0426 00 08 |
Mating Connector: (sold seperately)
| AMCI Part Number | Binder Part Number |
| MS-9 | 99 0426 00 08 |
Connector Pinout: 7 pin male M9 connector or 7 conductor Integral Cable
| Signal | Connector | Integral Cable |
| +DC input | 1 | Red |
| DC return | 2 | Black |
| +Clock | 3 | Green |
| -Clock | 4 | Brown |
| +Data | 5 | Blue |
| -Data | 6 | Orange |
| Enable | 7 | White |
Connector Pinout: 7 pin male M9 connector or 7 conductor Integral Cable
| Signal | Connector | Integral Cable |
| +DC input | 1 | Red |
| DC return | 2 | Black |
| +Clock | 3 | Green |
| -Clock | 4 | Brown |
| +Data | 5 | Blue |
| -Data | 6 | Orange |
| Enable | 7 | White |
SSI Protocol
The following diagram shows the signal protocol of the SSI version of the ME15 encoder. This format is used on ME15 Encoders both with and without the multiplexing option.
Tint = The time of one interrogation
Tclk = The period of the clock pulse
Tidle = The time between the last Clock pulse and the first falling edge of the next clock cycle
Tm = The time that the Stop bit is valid, typically 15 to 20 μs
Note 1: Use only 10 SSI clock pulses if only the absolute angular position data is needed.
Note 2: On ME15 SSI encoders with the multiplexing option, there will be separate Enable Lines for each encoder, but the Data and Clock lines of all of the ME15's will be connected together.
Note 3: When using the multiplexing option, a high signal on the Enable input disables the encoder by placing the Data Output lines in a high impedance state. When the Enable input is pulled low, the ME15 encoder will continuously output its data until the Enable input is again pulled high. The enable input must not be left floating.
AMCI makes buying PLC-based automation easy...our sales group will help you:
- Select the right product for your application
- Pay by credit card using your Visa, Mastercard, Discover, or American Express
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- Locate a distributor convenient to your region of the country
Contact AMCI Sales today:
860-585-1254
Ordering Information
AMCI's sales team takes the hassle out of placing your order. We'll advise on product selection, alternatives, lead times, and present you with point of purchase options. Call (860) 585-1254 or email AMCI sales today!
create your part number
Generate your ME15 encoder part number by using this helpful ordering guide. Starting from left to right, use the following diagram and table to choose the desired options. Each gray box must contain one or two alphanumeric character. Please note the following…
| Part Number Character | Absolute SSI DuraCoder Selections | Most Popular Selections |
|---|---|---|
| Mounting style: | S = 1.5" Shaft style servo mount | S (Servo mount) |
| Shaft Seal Type: | S = Shaft seal (IP67 rating) | S (Shaft Seal) |
| Shaft Diameter: | 2 = 1.4" 6 = 6mm | 2 (1/4" shaft) |
| Output Type: | S = SSI | S (SSI) |
| Output Scaling: | 1 = binary | 1 (Binary) |
| Angular Range: | K = 360° | K (360°) |
| Direction: | P = CW increasing looking at shaft N = CCW increasing looking at shaft | P (CW increasing) |
| Connection Type: | E = End Connect Mating Connector (MS-9 mating connector sold separately) FL = Integral Cable | E (End connector) |
| Integral Cable Length: | Specify the length in feet Standard lengths = 1.5', 3', 6', and 10' Blank if End Connector specified | 1.5' |
| Part Number Character | Absolute SSI DuraCoder Selections | Most Popular Selections |
|---|---|---|
| Mounting style: | S = 1.5" Shaft style servo mount | S (Servo mount) |
| Shaft Seal Type: | S = Shaft seal (IP67 rating) | S (Shaft Seal) |
| Shaft Diameter: | 2 = 1.4" 6 = 6mm | 2 (1/4" shaft) |
| Output Type: | S = SSI | S (SSI) |
| Output Scaling: | 1 = binary | 1 (Binary) |
| Angular Range: | K = 360° | K (360°) |
| Direction: | P = CW increasing looking at shaft N = CCW increasing looking at shaft | P (CW increasing) |
| Connection Type: | E = End Connect Mating Connector (MS-9 mating connector sold separately) FL = Integral Cable | E (End connector) |
| Integral Cable Length: | Specify the length in feet Standard lengths = 1.5', 3', 6', and 10' Blank if End Connector specified | 1.5' |
