IPE201

Interpolation unit IPE201

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The programmable interpolation unit IPE201 is intended for connection to incremental position and angle measuring systems with sinusoidal input signals that are phase-shifted by 90 °. It can be operated on a large number of encoder systems that work according to the most varied of measuring principles. The IPE201 divides the signal periods up to 256 times. The interpolation unit works with both single-ended and differential input signals. The configuration takes place either via USB, the SSI / BiSS interface or the internal EEPROM of the GC-IP201B. It is also possible to equip the unit with an SPI interface (3.3V or 5V system).

An AMAC-specific gain and offset control as well as the possibility of phase correction of the internal GC-IP201B ensure a high measurement accuracy under industrial conditions.

The unit can be connected to a standard meter or a control (delivery status) via the RS422 interface. Alternatively, it is possible to reconfigure the IPE201 via USB and connect it to an SSI / BiSS master. The operating voltage is 5 VDC.

The functions of the interpolation circuit GC-IP201B, such as switchable analog filters or digital hysteresis, make the unit ideal for use in control systems.

Features

Interfaces
Analog input	Sine / cosine / reference signal; differential or single-ended * Nominal amplitude 1 Vpp / 500 mVpp / 240 mVpp / 80 mVpp Maximum input frequency 440 kHz for all resolutions (counter operating mode) Optional: active current / voltage converter for the use of encoders with current interface 3.3V sensor input on request
ABZ	90 ° rectangular sequences (A / B / Z) Adjustable width index signal Z of ¼ or 1 period A / B Error signal Auxiliary signals for sensor adjustment RS422 interface
SPI	only with external adaptation (negative inputs SINN, COSN, REFN on mid-voltage) 30-bit counter value / 16-bit multiturn value Data rate up to 500,000 readings / second 9-bit signal monitoring Compatible with standard SPI: 16-bit, MSB first, up to 25 MHz Activatable signal filters to suppress interference pulses
SSI and BiSS	Up to 30-bit counter values / 16-bit multiturn value 2-bit signal monitoring Gray code / binary code Adjustable timing SSI ring operation
Other inputs	Trigger signal for storage of measured values Zero signal and teach signal for setting and saving the zero point position of the sensor
Configuration options	Internal EEPROM USB Serial interface SPI / SSI / BiSS)
Interpolation/Signal processing
Interpolation rate	256 / 200 / 160 / 128 / 100 / 80 / 64 / (50)* / 40 / 32 / (25)* / 20 *only in counter mode
Signal correction	AMAC-specific digital controller for offset, control range 10% of the nominal amplitude AMAC-specific digital controller for amplitude, control range factor 60%… 120% nominal amplitude Digital potentiometer with 15 steps for phase correction, setting range ± 5 ° or ± 10 ° Monitoring and assessment of the quality of the input signals The behavior of the IC in the event of sensor errors can be programmed
Interference suppression	Adjustable low pass 10kHz, 75kHz, 200kHz, 450kHz Digital hysteresis to suppress the edge noise at the output (0 ... 7) Adjustable minimum edge separation (bandwidth limitation) at the output
Reference signal processing	Adjustable reference point position in 32 steps 0 ... 360 ° Determination of the optimal reference position via SPI / BiSS or auxiliary signals Processing of distance-coded reference marks Measured value triggering at the reference point position
additional	2-stage measured value trigger Programmable timer (3.2µs ... 420ms) Delay time between sampling and measured value constant 2.3µs for all resolutions Multiturn counter
Important characteristics
Operating power	5VDC
I/O voltage digital	3,3 VDC or 5 VDC
Temperature range	-40...85°C
Interface frequency	SPI 25 MHz (15MhZ over on-board USB-SPI-converter), BiSS 10 Mhz, SSI 5 MHZ
Housing	Continuous cast profile 55 mm x 80 mm x 20 mm mounting bracket

Downloads

Manual

Software

Ordering information

Product type	description	article number
IPE201	Interpolation unit with GC-IP201	PR-46201-00