MINI SSI Encoder

10 Bit MINI Absolute Analogue Encoder Model: MINI SSI Encoder

The new product in PANKAJ Basket, Model SSIE-360 to provide Solid State Analogue output on panel mounting manually actuation, using contactless Hall’s effect technology. Burg pin connector’s makes termination connection easy. The product is also available, pre programmed with effective rotational angle of 45 , 90 , 180 and 360 0 0 0 0 in CW and CCW.

Features

• 25 mm Ø, 12 mm height Moulded housing
• 3/8″ x 32 TPI, 10mm long Brass Nickle Plated Bush
• 6.35 mm Ø, 15 mm long Brass Nickel plated Shaft

Specifications

Functional Description

Contact less measurement technique gives output in SSI-Synchronous Serial Interface form. Outputs are taken out through berge pin connection as marked on housing or wires can be directly soldered on gold plated output PCB terminals. When CS is at logic low (active), DO will change to High from High Impedance state. After 500ns (CLKFE) time data is latched into shift register with first falling edge of CLK. With subsequent rising edge of CLK pulse, one data bit shifts out at DO. Word contains 16 bit. First 10 bits, D9 to D0 are angle information. D9 is MSB and D0 is LSB of angle information.

Subsequent 6 bits are for system information viz.:

1. OCF – Offset Compensation Finished; OC algorithm has finished and data is valid if logic High,
2. COF – Cordic OverFlow; Logic High indicates an out of range error in the cordic part,
data D9 to D0 is invalid. (Send the encoder to manufacturer).
3. LIN – LINearity Alarm; Field generates a critical output linearity when logic High, data D9 to D0
may still be used but may contain invalid data. (Send the encoder to manufacturer).
4. MagInc – Magnitude Increase, field intensity is increasing, check the external magnetic disturbance.
5. MagDec – Magnitude Decrease, field intensity is decreasing, check the external magnetic disturbance.
Both above (4. & 5.) at logic High indicates magnetic field strength is below or above the required limit.
Check for external magnetic influence. If not i.e. field strength is out of range, send the encoder to factory.
Even Parity – bit for transmission error detection of bits 1 to 15 (D9…D0, OCF, COF, LIN, MagInc, DecMag).

Other Functionality:

Sampling Rate: n = 60/(RPM x 384μs).
Sampling Rate e.g. RPM = 60, then n = 60/(100 x 384 x 10-6) = 1562 samples/second.
MagRngn – Magnet Field Magnitude Range Warning (Optional), it is combination of MagInc and MagDec.
Active Low via open drain output, requires an external pull-up resistor. If the magnetic field is in range,
this output is turned off (logic High).

Applications

• Automation,
• Test and Measuring Instruments,
• Robotics,
• Crane, Angle Measurement.

Product Image

Dimensional Diagram

Note: We reserve the right to make any kind of design, specifications or functional modification at any moment without prior notice