Spirax Sarco PLC User Manual

3.635.5275.253 Ed. 1 IT - 2010
© Copyright 2010
EXPER
TISE SOLUTIONS SUST
AINABILITY
PLC Unit Control
for CSM-K Clean Steam Generators
Installation, Operation and Maintenance Manual
The PED Directive 97/23/EC is r
epealed and replaced by the new
PED Directive 2014/68/EU with effect from 19 July 2016.
The ATEX Directive 94/9/EC is repealed and replaced by the new
ATEX Directive 2014/34/EU with effect from 20 April 2016.

Spirax Sarco PLC Specifications

General

Controller Type	PLC
Input Voltage	24V DC
Operating Temperature	0°C to 50°C
Communication Protocol	Modbus RTU
Enclosure Rating	IP65

Summary

Working Safely with Cast Iron Products on Steam

Safe Handling of Cast Iron for Steam Lines

Guidelines for safely handling cast iron components in steam systems.

Water Hammer Prevention

Steam Trapping for Steam Mains

Explains steam trapping methods to prevent water hammer in steam lines.

Tensile Stressing Prevention

Avoiding Pipe Misalignment

Discusses preventing tensile stressing by avoiding pipe misalignment.

Manual Operation Mode

Manual Mode General Considerations

Manual Feed Water Setup

Level Transmitter and Controller Matching

ON-OFF Level and Water Pump Control

Continuous Level (4-20mA) with Modulating Valve

ON-OFF Level and Feed Water Valve Control

Continuous Level (4-20mA) with ON-OFF Valve

Continuous Level (4-20mA) with Water Pump

Manual Pressure Control

Pressure Transmitter Range Requirements

Manual Pressure Valve Control Steps

Potential Pressure Control Alarm Conditions

Manual Bottom Blowdown Valve Control

Steps for Manual Blowdown Valve Operation

Blowdown Valve Travel Limit Verification

Blowdown Control via TDS

TDS Monitoring for Blowdown Valve Activation

Automatic Operation Mode

Selecting Automatic Operation Mode

Pressure Control Configuration

Setting the Desired Pressure Set-Point

Level Setup Configuration

Defining the Required Level Set-Point

Bottom Blowdown Timing Setup

Bottom Blowdown Period Configuration

Setting Blowdown Interval in Automatic Mode

Starting the Automatic Regulation Program

System Alarms and Control Blocks

Feed Water Control Alarm Blocks

Lists alarms that trigger a block in the feed water control system.

Pressure Control Alarm Blocks

Lists alarms that trigger a block in the pressure control system.

Bottom Blowdown Control Alarm Blocks

Lists alarms that trigger a block in the bottom blowdown control system.

TDS Alarms Without Cycle Block

Controller Configuration

Non-Password Protected Parameter Setup

Guides through configuring parameters that do not require a password.

Integral Action Constant Setup

How to set the integral action constant for controller tuning.

Pressure Pre-alarm Configuration

Setting the low pressure pre-alarm value.

Level Controller Proportional Band Setup

How to set the proportional band for the level controller.

Pressure Controller Action Configuration

Details the setup and configuration of the pressure controller's actions.

Power Reset Constant Setup

How to set the power reset constant, conditional on integral action.

Level Controller Setup (Non-ON-OFF)

Procedure for setting up level controllers, excluding ON-OFF types.

Password Protected Configuration

Accessing Password Protected Settings

Steps to access parameters that are protected by a password.

Setting Full Scale Values for Transmitters

How to enter full scale values for pressure and level transmitters.

Setting Level Control Zero and Full Scale Values

Procedure to enter the zero and full scale values for level control.

TDS Measurement Setup with BC3150

Configuration for TDS measurement using the BC3150 instrument.

Entering the Three-Digit Password

Procedure for entering the required three-digit password for configuration.