3-axis Quadrature Encoder PCL-833 and Counter Card Features Features § 1.0 MHz max. quadrature input rate § 3 24-bit counters (can cascade up to 48 bits) § Optically isolated up to 2,500 V RMS § 4-stage digital filter § 2.4 MHz max. input pulse rate § Pulse/direction and up/down counting § Digital input with interrupt for each axis § Programmable time-interval interrupt § Half-size AT bus card Introduction TThe PCL-833 is a 3-axis quadrature encoder and counter add-on card for the IBM PC/AT and compatibles (ISA bus). This card lets your PC perform position monitoring for motion control systems. Encoder Interface Each input includes a decoding circuit for incremental quadrature encoding. Inputs accept either single-ended or differential signals. Quadrature input works with or without an index, allowing linear or rotary encoder feedback. Counters The PCL-833 has three independent 24-bit counters. The maximum quadrature input rate is 1.0 MHz, and the maximum input rate in counter mode is 2.4 MHz. You can individually configure each counter for quadrature decoding, pulse/direction counting or up/down counting. Digital Input and Interrupts The PCL-833 provides five digital input channels. Each channel accepts digital input as an index input for a rotary encoder or as a home sensor input for a linear encoder. The card can generate an interrupt to the system based on a signal from its digital inputs, overflow/underflow of its counters, or on a programmed time interval. It can repeatedly generate interrupts at any time interval you specify, from 0.1 msec. to 255 sec. These interrupts let you precisely monitor the speed of a control system. Programmable Interrupt Controller Specifications 1 Hz, 10 Hz, 1 KHz or 10 KHz time base (S/W selected) with a programmable multiplier Encoder Input of 1, 2, 3, 4, ..., 255 § Number of Axes 3, independent General § Max. Quadrature 1.0 MHz § Power Consumption +5 V @ 700 mA (typical) Input Frequency +12 V @ 15 mA (typical) § Max. Input Pulse 2.4 MHz § Operating Temperature 0 ~ +60° C (32 ~ 140° F) Frequency § Storage Temperature -20 ~ +70° C (-4 ~ 158° F) § Counts per Encoder x1, x2, x4 (S/W selectable) § Operating Humidity 5 ~ 95% RH non-condensing (refer to IEC 68-2-3) Cycle § Connector DB-25 female connector § Encoder Type single-ended or differential § Dimensions 185 mm (L) x 100 mm (H) (7.3" x 3.9") § Counter Size 24 bits, easily daisychains for up to 48 bits § Counter Modes quadrature, up/down, pulse/direction (S/W selectable) § Digital Filter 4 stage Ordering Information § Sample Clock 8, 4 or 2 MHz (S/W selectable) § PCL-833 3-axis quadrature encoder and counter card, user’s Frequency manual and driver CD-ROM (cable not included) § Input Isolation 2,500 V using optical isolators RMS § ADAM-3925 DB-25 wiring terminal for DIN-rail mounting Digital Input § PCL-10125-1 DB-25 cable assembly, 1m § Number of Channels Five digital, with interrupt § PCL-10125-3 DB-25 cable assembly, 3m § Input Isolation 2,500 V using optical isolators RMS Plug-in DA&C Cards Online Download www.advantech.com/products 5-60