CJ1W-CT021

The Omron CJ1W-CT021 module is a high-speed counter unit designed to provide precise counting capabilities and support high-speed motion in Omron industrial automation systems. This module is equipped with two counters, and it can count with a 32-bit maximum binary range. The CJ1W-CT021 unit accepts input pulse frequencies of 500 kHz maximum, enabling accurate control of high-speed movements. Its bi-directional counting ability allows it to detect movement in both directions, and this provides flexibility in various applications. Each counter can be independently configured to suit specific counting requirements. In addition to its counting functions, the CJ1W-CT021 unit features two digital inputs, two digital outputs, and 30 soft outputs, enhancing its versatility in interfacing with other devices and system components. With a maximum rated response time of 0.5 ms, the CJ1W-CT021 module supports rapid closed-loop control for efficient and precise performance in industrial application processes. This high-speed counter unit is a part of the Omron CJ series and can be easily mounted to either a CJ CPU rack or a CJ expansion rack, and this makes it easy to integrate into existing systems. Its compact dimensions of 31 x 90 x 65 mm (W x H x D), and its weight is 100 g. It operates in an ambient relative humidity range of 10% to 90% without condensation. The CJ1W-CT021 module’s internal current consumption rating is 280 mA at 5 V. The unit supports different counter types, including the simple, circular, and linear counter types, to provide flexibility in its counting methods. The CJ1W-CT021 module’s output operating voltage range is 12-24 V (10.2 to 26.4 V), with a maximum output switching capacity of 46 mA at 10.2 V to 100 mA at 26.4 V (200 mA maximum/common). It does not feature short-circuit protection.