Toptech RCU II DIV2 - User Manual

MultiLoad II & RCU II
DIVISION 2 (DIV2)
Installation Guide
(Part # 6074)

Toptech RCU II DIV2 Specifications

General

Brand	Toptech
Model	RCU II DIV2
Category	Controller
Language	English

Summary

Chapter 1 General Information & Warnings

1.2 Safety Warnings

Critical safety information for North American installations and hazardous locations.

Chapter 2 Operating Conditions and Components

Chapter 3 Installation

3.4 Mounting the Enclosure

Guidelines for mounting the unit on various surfaces like drywall or concrete.

3.5 Recommended Wire Sizes and Torque

Specifies wire sizes and torque values for terminal blocks.

3.6 Electrical Supply Connections

Instructions for connecting AC and DC power supplies.

3.6.1 AC Powered Models

Details AC power requirements and connection diagrams.

3.6.2 DC Powered Models

Details DC power requirements and connection guidelines.

3.6.3 Equipment Grounding

Guidance on safety ground connections for the unit.

Chapter 4 Data Communications Interface

4.1 Available Communications Protocol Selection and Wire Spec

Explains communication protocols like RS-422/485, RS-232, and Ethernet.

4.1.1 RS-422;485 Protocol

Details RS-422/485 protocol, wiring, and specifications.

4.1.2 RS-232 Protocol

4.1.3 Ethernet Protocol

4.2 Communication Connection Wiring

Provides wiring examples for different communication ports.

4.2.2 Host;TMS Communications

How to connect a host/TMS computer system via various protocols.

4.2.2.1 RS-485 4-Wire Host Connection

4.2.2.2 RS-485 2-Wire Host Connection

4.2.2.3 RS-232 Host Connection

4.2.2.4 Ethernet Host Connection

Chapter 5 Connecting Field Devices to I;O Board

5.2 Available I;O Points per Board

Details the quantity and electrical ratings of I/O points for different boards.

5.3 Terminal Arrangements per Board

Shows terminal block assignments for Digital/Analog I/O board.

5.3.2 2 Meter I;O Board Terminal Assignments

5.4 Connecting Field Devices to I;O Boards

Provides examples of wiring field devices to the I/O boards.

5.4.1 Flow Meter and Control Valve Wiring

5.4.2 Additive Wiring Outputs

5.4.3 Additive Wiring Inputs

5.4.4.1 RTD Wiring

5.4.4.2 4-20 mA Wiring

5.4.5 AC Output Wiring

5.4.6 AC Input Wiring

5.4.7 DC Permissive;Status Wiring

5.4.8 DC Output Wiring

5.4.11 RCU II DC Input Wiring

5.4.12 RCU II AC Output Wiring

5.4.13 RCU II DC Output Wiring

5.4.14 Typical 1 Meter Application Wiring Example

Chapter 6 Configurations

6.1 Switch Access Control

Explains switches that limit menu and configuration access.

6.4 Field Modification and Data Entry

6.5 Preliminary Configuration

6.6 Verifying I;O Board Communications

Procedure to verify communication status between the unit and I/O board.

6.7 Using I;O Diagnostics

How to use diagnostic functions for I/O testing.

Chapter 7 Service and Repair

7.2 CPU Subassembly Removal and Replacement

Step-by-step guide to removing and replacing the CPU subassembly.

7.3 Display Subassembly Removal and Replacement

Step-by-step guide to removing and replacing the display subassembly.

7.4 Keypad Removal and Replacement

Step-by-step guide to removing and replacing the keypad.

7.5 Card Reader Removal and Replacement

Instructions for removing and replacing card reader types.

7.6 W&M Switch Assembly Removal and Replacement

Step-by-step guide to removing and replacing the W&M switch assembly.