CTI 2554-A 4-Channel Isolated High Speed Counter Module



2554-A 4-Channel Isolated High Speed Counter Module

The 2554-A is an isolated 4-channel high-speed counter input module. Each channel can operate in one of three selectable modes: frequency, period, or general counter.

In addition, two channels may be configured together for quadrature mode operation.

Features

Single-wide 4-channel high-speed counter

Operates in frequency, period, or counter mode

External gate and reset inputs on each channel

External 1.5A sourcing output per channel

Auto-reset option for rapid or random asynchronous events

Description

2500 Series®  PLC System

The 2554-A is a 4-channel isolated high- speed

counter input module designed to be compatible with

the CTI 2500 Series or Simatic® 505 I/O base. The

2554-A operates in three selectable modes:

frequency, period, or general counter. In addition, two

channels may be configured together for quadrature

mode operation.

Fuse: 3A, 250V (Littlefuse 2173.15 or

Bussman GMA-3A)

Isolation: 1500 VDC channel-to-channel

1500 VDC channel-to-PLC

Connectors: Requires 2500-40F

Wire Gauge: 14-22 AWG

Backplane Power: 2.5 Watts @ +5 VDC

Module Size: Single-wide

Shipping Weight: 1.5 lbs. (0.68 Kg)

Additional Product Information:

On CTI’s Website you find will links to the 2500 Series

Std Environmental Specifications and the UL Agency

Certificates of Compliance .

The 2554-A is extremely useful when there is a

requirement to measure rapidly changing pulse

inputs with a high degree of accuracy and convert

them to counts, frequency, or period measurements.

The module can also trigger external events based

on preset counter values and auto-reset the count

without missing an input  pulse.

Product Bulletin

Application

The 2554-A is ideally suited for precise position

measurement applications where an external edge

reset is required. Other applications such as

continuous flow monitoring and interface to

encoders are targeted with the 2554-A.