Miura MP1-200 User manual

OPERATION
MANUAL
Multiple Installation Controller
Pressure Controller MP1-200
MI Terminal MT1-200
Operation Manual Code No.
T519-998-9130
(E130-002-0940)
INFORMATION IN THIS MANUAL MAY BE
CHANGED WITHOUT NOTICE.
Ensure that this operation manual is fully
read and observed by all persons working
with the product.
Store this operation manual in a location
where it may be easily accessed by said
persons.

Date of preparation: May 2012

Important Safety Information
i
Important Safety Information
Before using the Multiple Installation Controller(*) (Pressure Controller MP1-200/MI Terminal MT1-200),
ensure that this operation manual is read and fully understood; furthermore, the instructions given herein
should be strictly observed during operation.
The Multiple Installation Controller(*) contains high voltage sections that could cause electric shock.
Failure to use the controller in the appropriate manner can, therefore, result in death, injury, the outbreak
of fire, and other serious accidents.
In order to ensure that tasks undertaken during operation and maintenance of the Multiple Installation
Controller(*) can be completed safely, it is critical that all dangerous and hazardous parts of this
equipment be confirmed in advance. Here at MIURA, it is practically impossible to anticipate all
potentially dangerous situations, and therefore, this operation manual deal only with known hazards. A
higher level of safety can be achieved by carefully observing the warnings and instructions set forth
herein.
Safety- and damage-related warnings are classified into the following three levels, and notification of
these warnings is provided within this operation manual and using warning labels(*) on the Multiple
Installation Controller(*) itself.
Indicates an imminently dangerous situation which leads to serious injury or
death to the user, if the product is mishandled.
Indicates a situation which might cause serious injury or death to the user, if
the product is mishandled.
Indicates a situation which might cause minor injury to the user or the
occurrence of physical damage only, if the product is mishandled.
If any part used in the product fails, contact our sales office to replace it with its genuine part. Using parts
of different models might reduce safety.
It should be noted that unauthorized alteration of the Multiple Installation Controller (*) or repair
procedures other than those described herein can pose a serious safety risk. Never make any
modifications or repairs without MIURA’s permission.

Introduction
ii
Introduction
This document describes the methods of handling a Multiple Installation Controller(*) to ensure its proper
use.
Not only those who use the Multiple Installation Controller (*) for the first time but also those who know the
handling methods should read this document carefully and understand the proper handling methods
before use of the Multiple Installation Controller (*).
Furthermore, we also recommend that this Operation Manual be stored in a specially designated location
so that it can be referred to at any time to confirm the correct usage.
[Explanation of Notation]
The meanings of the symbols used in this manual are as shown below.
Indicates a prohibited action (what you must not do).
Indicates a possibility of electric shock when the product is
handled with wet hands.
Indicates an action to be taken according to an instruction (what
to be executed).
Indicates an action connecting a grounding wire.
Indicates a caution.
Indicates a possibility of injury due to high temperatures under
specific conditions.
Describes the precautions to prevent failures of the boiler, points
to perform effective operation, and useful information to know.
Indicates the page of related information.
NOTE
Ground
Connection

Definition of Terms
iii
Definition of Terms
The following are the meanings of terms used in this operation manual. (Indicated by (*) in the text).
Terms Details
Warning label A sticker that urges caution in operation.
Automatic operation A status in which boilers are operated according to directions from the
MI controllers.
Manual operation A status in which boilers are operated independently of directions from
the MI controllers.
Multiple installation (MI)
control
To automatically operate the quantity of boilers among several installed
boilers that corresponds to the required amount of steam.
Twisted pair cable A pair of electric wires of two intertwined electric wires.
Resistant to exterior electrical hazard and used for communication.
Boiler number Serial numbers for boilers under multiple installation control.
Priority Boilers with higher priorities are more frequently fired up to provide
uniform combustion load and to prevent the corrosion of the boilers.
Rotation It changes the priorities of the boilers under multiple installation control
to be fired up in order to make the combustion load uniform.

Table of Contents
iv
Table of Contents
Important Safety Information .......................................................................i
Introduction................................................................................................. ii
Definition of Terms..................................................................................... iii
SECTION 1 SAFETY .....................................................................1
1. Safety Regulations............................................................................... 1
2. Safety-related Knowledge and Expertise ............................................. 1
3. Protective Equipment ........................................................................... 1
4. Prohibition of Unapproved Modification ............................................... 1
5. Warning Labels on the Product Main Unit............................................ 2
6. Safety Precautions............................................................................... 3
6.1 Safety Precautions for Installation ..................................................................3
6.2 Safety Precautions for Use of the Equipment .................................................4
6.3 Safety Precautions for Relocation or Resale (excerpt from page 51- of the text)
4
SECTION 2 OVERVIEW ................................................................5
1. Product Overview................................................................................. 5
1.1 Features and Functions ..................................................................................5
1.2 Configuration ..................................................................................................6
1.3 Specifications..................................................................................................7
1.3.1 Common Specifications..........................................................................7
1.3.2 Pressure Controller MP1-200.................................................................8
2. Component Names and Functions....................................................... 9
2.1 Pressure Controller MP1-200 .........................................................................9
2.1.1 Control Panel .........................................................................................9
2.1.2 Internal Structure..................................................................................10
2.2 MI Terminal MT1-200 .................................................................................... 11
2.2.1 Control Panel ....................................................................................... 11
2.2.2 Internal Structure..................................................................................12

Table of Contents
v
SECTION 3 OPERATION ............................................................13
1. Operating the Pressure Controller MP1-200 ...................................... 13
1.1 Normal Operation ......................................................................................... 13
1.2 Operation with External Control Signal (External connection is required
separately).................................................................................................... 14
1.2.1 Stopping All the Boilers ........................................................................ 14
1.2.2 Firing Up All the Boilers........................................................................14
1.2.3 Suspending Alarm Output ....................................................................14
1.3 Setting Operation (Control Pressure, Alarm Pressure) ................................. 15
1.4 Other Setting Operation (Switch, Pressure Sensor Adjustment) .................. 16
2. Operating the MI Terminal MT1-200................................................... 19
2.1 Normal Operation ......................................................................................... 19
2.2 Normal Setting Operation ............................................................................. 21
2.2.1 Setting Priority......................................................................................21
2.2.2 Setting the Current Time ......................................................................22
2.2.3 Setting the Day of the Week.................................................................22
2.2.4 Setting Cumulative Combustion Time ..................................................23
2.3 Basic Data Display and Setting Operation.................................................... 24
2.4 List of Setting Display ................................................................................... 34
3. Details of Control and Function .......................................................... 35
3.1 MI Control Function ...................................................................................... 35
3.2 Determination of Priority ............................................................................... 37
3.3 Backup Control ............................................................................................. 37
3.4 Automatic Rotation Function ........................................................................ 37
3.5 Blowdown Timing Notification Function ........................................................ 40
3.6 External Signal Control of the Pressure Controller MP1-200........................ 41
3.6.1 External Control Input (Terminal Block No.1 to No.8)...........................41
3.6.2 Output for External Monitor (Terminal Block No.9 to No.20) ................ 42
3.7 Boiler Pressure Control Function (Option).................................................... 45
4. Display Unit Change Function............................................................ 46
4.1 Changing the Display Unit of the MI Terminal MT1-200 ............................... 46

Table of Contents
vi
SECTION 4 BREAKDOWN AND COUNTERMEASURES ..........47
1. When Pressure Indication of the Pressure Controller MP1-200 Is Incorrect
........................................................................................................... 47
2. When the Boilers Cannot Be Automatically Operated (the Boilers Are
Controlled by Their Pressure Settings) .............................................. 47
3. When the Boilers Stop Before the Specified Pressure Is Obtained ... 47
4. When the Boilers Do Not Start Combustion....................................... 48
5. When the “B.BLOW” or “S.BLOW” LED Does Not Turn on at All or Turns on
Frequently .......................................................................................... 48
6. When Automatic Rotation Is Not Performed or Automatic Rotation Does
Not Change The Priorities.................................................................. 49
7. When the Boilers Do Not Fire According to the Priorities................... 49
8. Warning displayed on MI Terminal of MT1-200 ................................... 50
SECTION 5 STORAGE................................................................51
1. Transfer or Resale ............................................................................. 51
SECTION 6 WARRANTY .............................................................52
1. Note Regarding Warranty .................................................................. 52
2. Inquiries Regarding the Product or Operation Manual....................... 52
SECTION 7 APPENDIX ...............................................................53
1. Purchasing Individual Operation Manuals.......................................... 53

SECTION 1 SAFETY
1
SECTION 1 SAFETY
1. Safety Regulations
Handling of the Multiple Installation Controller(*) is comprised of operations associated with running of
the equipment and operations regarding maintenance.
The Multiple Installation Controller(*) should be operated by persons who were given explanations of the
operation with this operation manual.
2. Safety-related Knowledge and Expertise
Usage of the Multiple Installation Controller(*) requires knowledge and experience of the operation and
maintenance of mechanical equipment. Understand the operation manual before attempting to use the
controller.
3. Protective Equipment
Wear protective items such as a helmet and safety footwear as required for the task.
4. Prohibition of Unapproved Modification
It should be noted that unauthorized alteration of the Multiple Installation Controller(*) or repair
procedures other than those described herein can pose a serious safety risk. We strongly advise against
improvised customization and repair.

SECTION 1 SAFETY
2
5. Warning Labels on the Product Main Unit
A warning label(*) is affixed where caution is required for operation.
Replace peeling or torn warning labels(*).
If warning labels(*) are peeling off or damaged, replace with new ones.
Pressure Controller MP1-200

SECTION 1 SAFETY
3
6. Safety Precautions
6.1 Safety Precautions for Installation
The following safety precautions apply to installation.
WARNING
Pressure Controller MP1-200
Ensure that a dedicated circuit breaker (with overcurrent protection) is installed
on the main power supply line.
MI Terminal MT1-200
Ensure that the main power supply line is wired from the boiler power supply line.
For installation of the power supply of the main power supply line, connect wires
with the specified diameter and ensure that they are grounded.
アース端子
Ground terminal
Breaker
capacity
Circuit breaker
(with overcurrent protection)
Circuit breaker
(with overcurrent protection)
Wiring

SECTION 1 SAFETY
4
6.2 Safety Precautions for Use of the Equipment
The following safety precautions apply to the use of the equipment.
WARNING
Do not perform this procedure with wet hands.
Failure to observe this precaution can result in high-voltage electric shock and
injury or death.
Do not place combustible materials in the unit.
Failure to observe this precaution can result in a fire and death.
6.3 Safety Precautions for Relocation or Resale (excerpt from page 51- of the text)
WARNING
Ensure that the boiler is installed only in the specified condition and connected to
the specified peripheral equipment.
Failure to observe this precaution may result in injury.
Wet Hands
Prohibited

SECTION 2 OVERVIEW
5
SECTION 2 OVERVIEW
1. Product Overview
1.1 Features and Functions
This unit automatically determines the optimum number of boilers to operate in consideration of the
load and operates the required number of boilers in descending order of priority(*). The major features
are as follows.
This unit efficiently operates 15 boilers at maximum depending on the pressure status detected
by the pressure sensor installed on the steam header.
The boiler can reduce unnecessary start and stop by setting the quantity of low fire standby units
depending on loading condition.
When something goes wrong with one of the boilers, this unit performs MI control(*) on the rest of
the normal boilers. This enables the unit to perform a stable MI control(*) at a boiler abnormality.
The automatic rotation(*) function determines combustion priorities(*) for the boilers according to
the cumulative combustion time of the boiler, which enables automatic equalization of boiler
combustion time.
The blowdown time can be notified with the indication lamp by setting the blowdown timing. After
performing blowdown, the boiler can be operated temporarily on a priority basis to prevent the
corrosion of the boiler pressure vessel.
The boiler can be turned on and off once a day by timer function. Setting can be performed
separately for each boiler under automatic operation(*).
By installing an optional pressure sensor onto the MI Terminal MT1-200 of each boiler, the
pressure can be controlled at almost the same level as automatic operation(*) even when the
boiler is under manual operation(*). The unit can respond to a sudden load change by keeping
the boilers at a constant pressure during standby.
The MI controllers(*) are connected only by two-core twisted pair cables(*) and the quantity of
boilers to be controlled can be changed by setting. This facilitates additional installation of
boilers after introduction of MI controllers(*).

SECTION 2 OVERVIEW
6
1.2 Configuration
As shown in the following figure, the unit is composed of a steam header that collects steam from the
boilers, a pressure sensor that monitors steam pressure of the steam header, a Pressure Controller
MP1-200, steam boilers controlled under MI control(*) and MT1-200 units that control the boilers.
The Pressure Controller MP1-200 performs monitoring on steam pressure of the steam header to
determine the most efficient combustion condition depending on the status of load change.
The MI Terminal MT1-200 receives information from the Pressure Controller MP1-200 to determine
the priorities(*), thus performing combustion control on the boilers.

SECTION 2 OVERVIEW
7
1.3 Specifications
1.3.1 Common Specifications
Applicable boiler : Three position step burner HIGH-LOW-OFF
Quantity of boiler under control : 15 units at the maximum
Control pressure : Employed
Sensor
(Type)
Working
Pressure Range
MPa
{PSI}
Control Range
MPa
{PSI}
YSK-AC10M-333 0.098 - 0.93
{14 - 136}
0.050 - 0.39
{8 - 56}
YSK-AC20M-334 0.195 - 1.86
{28 – 270}
0.098 - 0.78
{14 – 114}
Control communication : Mutual information transmission by two-core (pair)
twisted pair cable(*).
Total interconnection length : Maximum 300 m (wiring for MI control(*) communication
line)
Control method : Combustion unit distribution system by steam header
pressure
Low fire unit ensuring type starting system (for the units
specified)
Low fire priority stop system
Functions : Automatic rotation(*) function
Complete blowdown immediate prioritized combustion
functions
Abnormal boiler backup functions
Pre-purge backup function
Pressure holding function of each boiler (optional)

SECTION 2 OVERVIEW
8
1.3.2 Pressure Controller MP1-200
External control input:
Input name Terminal
number Signal type
Emergency stop 2-3
Contact input
Input voltage: Follows the power supply voltage.
Input current: 6 mA (at 200 VAC)
Alarm check 4-5
All combustion 6-7
All stop 7-8
Monitor output:
Output name Terminal
number Signal type
Sensor fail 9-10
Normally open dry contact
Contact rating: 250 VAC / 1 A (resistance load)
Communication status 10-11
Boiler operation 12-13
Alarm 13-14
Emergency stop 15-16
Boiler trouble 16-17
Pressure alarm L 18-19
Pressure alarm H 19-20

SECTION 2 OVERVIEW
9
2. Component Names and Functions
2.1 Pressure Controller MP1-200
2.1.1 Control Panel

SECTION 2 OVERVIEW
10
2.1.2 Internal Structure
The main unit front panel and the base plate must be locked.To remove the front panel, hold it with
both hands and pull it. See the figure below for internal construction.
When operations such as configuration are performed with the front panel opened, do not touch
undesignated portions such as the terminal blocks or parts on the circuit board. It can cause an
electric shock or failure of the equipment.

SECTION 2 OVERVIEW
11
2.2 MI Terminal MT1-200
2.2.1 Control Panel
NOTE
You are not able to use TIMER FUNCTION if the local code does not allow you to use it.

SECTION 2 OVERVIEW
12
2.2.2 Internal Structure
Do not carry out internal setting with the top cover of the main unit open. A touch on the internal
terminal blocks or parts on the circuit board results in an electric shock or mechanical problem.
An error in setting leads to malfunction. Do not open the top cover except for special cases
such as installation check.