ABB RETA-02 ACS550/ACH550/DCS800 frequency conversion bus Ethernet module

Description

RETA-02 A network of resistors, capacitors, and diodes establishes input thresholds and provides input

filtering. Optoisolators provide isolation between the field inputs and the module’s logic

components. RETA-02 Data from all 16 inputs is placed into a data buffer. The module’s circuit LEDs show

the current states of the 16 inputs in this data buffer.

Parallel-to-serial converters change input data from the data buffer into the serial format needed by

the Bus Interface Unit.

RETA-02 After checking the Board ID and verifying that the module is receiving appropriate logic power

from the Bus Interface Unit (which is reflected by the state of the module’s Power LED), the Bus

Interface Module then reads the filtered, converted input data

Each group of 8 inputs can be either positive or negative inputs. For example, group 1 (inputs 1-8)

may be positive logic and group 2 (inputs 9-16) may be negative logic. Both types of signal produce

a logic 1 (true) when the switch is closed. Each group may also support different logic levels. For

example, group 1 may be +5 VDC and group 2 may be -12 VDC.

Selection of positive or negative operation is made by the manner in which the external power

supply is connected to the inputs and to the I/O Terminal Block, as shown below

Positive inputs receive current from input devices and supply current to the common or negative

power bus. Input devices are connected between the positive power bus and the input terminals.

Negative inputs provide current to input devices and accept current from the common or positive

power bus. Input devices are connected between the negative power bus and the input terminal.

RETA-02 The Terminal Block with box terminals has 25 terminals for each module, each of which

accommodates one AWG #14 (avg 2.1mm2 cross section) to AWG #22 (avg 0.36mm2 cross

section) wire, or two wires up to AWG #18 (avg. 0.86mm2 cross section). When an external jumper

is used, the wire capacity is reduced from AWG #14 (2.10mm2 ) to AWG #16 (1.32mm2 ).

The I/O Terminal Block with barrier terminals has 18 terminals per module. Each terminal can

accommodate one or two wires up to AWG #14 (avg 2.1mm2 cross section).

The I/O Terminal Block with Connectors has one 20-pin male connector per module. The mating

connector is Amp part number 178289-8. Any tin-plated contact in the AMP D-3000 series can be

used with the connector (Amp part number 1-175217-5 for high contact force receptacle for 20-24

gauge (0.20-0.56mm2 ) wires), 1-175218-5 for high contact force receptacle for 16-20 gauge (0.56-

1.42mm2 )).

Why are the prices of many products of our company more competitive?
(1) Source purchase to reduce the price difference in the intermediate phase
(2) Stable channel and more guaranteed supply
Lead time problem
(1) For the spot products in stock, the delivery can be arranged on the same day after the contract payment is signed
(2) Order products and deliver according to the quoted delivery date
Xiamen Xiongba adheres to the enterprise philosophy of “improving the value of spare parts supply chain”,
For the simple purchase procedure of spare parts, ensure that they are delivered to the site in a timely manner, and help users reduce the risk of downtime caused by the shortage of spare parts
The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts is reliable. All the spare parts provided enjoy a one-year super long warranty
Spot stock, fast response, reduce user capital investment, improve spare parts utilization, spare parts replacement!

Details: If you need urgent delivery orders, please feel free to contact us, and we will try our best to meet your needs.
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