Table of Contents
Advertisement
Quick Links
INSTALLATION
MANUAL
Boiler Operation Terminal
EJ-210
This document was formulated in Japan.
Comply with the regulations and
standards of the country of use regarding
installation and usage.
The specifications of products and
components may vary with country of
use and the site situation.
Contact your dealer or MIURA sales
office for further inquiry regarding this
document.
INFORMATION IN THIS MANUAL MAY
BE CHANGED WITHOUT NOTICE.
Manual Code No.
E20-018-00
i
BP – TERMINAL
Advertisement
Table of Contents
Related Manuals for Miura EJ-210
Summary of Contents for Miura EJ-210
- Page 1 The specifications of products and components may vary with country of use and the site situation. Contact your dealer or MIURA sales office for further inquiry regarding this BP – TERMINAL document. INFORMATION IN THIS MANUAL MAY BE CHANGED WITHOUT NOTICE.
- Page 2 This Installation Manual describes the carry-in and installation of the boiler operation terminal EJ- 210(hereinafter called “EJ-210”). When installing the EJ-210, carefully read and understand the contents of this manual to ensure that all installation work is performed safely. Warnings in this manual are classified as DANGER, WARNING, CAUTION, or NOTE, in order of severity.
-
Page 3: Table Of Contents
Table of Contents 1. PRECAUTIONS DURING INSTALLATION .......... 1 2. OVERALL DIMENSIONS ..............2 2.1. EJ-210 Main Unit ....................2 2.2. Steam Pressure Sensor (Optional) ..............3 3. COMPONENT NAMES ................ 4 3.1. Names of Indicators and Buttons ............... 4 3.2. - Page 4 Document No.: E20-018-00 Definition of Terms The table below describes the terms used in this manual. The following names are defined in various standards. They are indicated with an asterisk (*) in the text. Term Description AWM2840 Shielded wire defined in “UL Style No. 2840” CV wire Power cable defined in “JIS C 3605”...
-
Page 5: Precautions During Installation
Document No.: E20-018-00 1. PRECAUTIONS DURING INSTALLATION Pay attention to the following items during equipment installation and instrumentation work. (1) When performing grounding work, use IV wire or equivalent from the ground terminal in the panel. Use a wire diameter equal to or larger than the main power wire (2.0 mm or larger). -
Page 6: Overall Dimensions
Document No.: E20-018-00 2. OVERALL DIMENSIONS 2.1. EJ-210 Main Unit Normal Data Blow B P – T E R M I N A L Caution Rubber feet 4-M6 (welded nut) (For installation) 290.5 52.5 φ20 φ30 (M-NET3 communication φ30 φ10... -
Page 7: Steam Pressure Sensor (Optional)
Document No.: E20-018-00 2.2. Steam Pressure Sensor (Optional) Gray: Shield Black: Power supply ground White: Voltage output Red: Power supply positive (+) Power supply positive (+) Voltage output Power supply ground Waterproof connector Model name plate for relay connection Contact pin No. 52117-0340 (white) (Manufactured by Molex Japan Co., Ltd.) -
Page 8: Component Names
Document No.: E20-018-00 3. COMPONENT NAMES 3.1. Names of Indicators and Buttons “Data” button Display “Blow” button Normal Data Blow BP – TERMINAL Caution Status lamps ▲/▼ buttons 3.2. Layout and Names of Internal Circuit Boards RS-422 communication conversion circuit I/O board board EC11 CPU board... -
Page 9: Required Parts
(2) Boiler allowing installation inside the control box If a boiler allows the MI terminal MT1-200 to be installed inside the control box, the EJ-210 can be installed in the same way. A setting plate and panel name plate are required for installation. -
Page 10: Installation
• Firmly secure the EJ-210 in a vibration-free position. • Do not install the EJ-210 in a location subject to water, such as steam or condensation. Check that condensation along steam piping cannot fall on the main unit of the EJ-210. -
Page 11: Installing Ej-210
5.2. Installing EJ-210 5.2.1. Top of Control Box Use the four M6 screws supplied to mount the EJ-210 on top of the control box. (1) Drill mounting holes in the position where the EJ-210 is mounted. Mounting dimensions: 115 mm × 350 mm (Refer to the overall view drawings.) Mounting screws: M6 ×... -
Page 12: Boiler Allowing Installation Inside The Control Box
For a boiler model that allows the MI terminal MT1-200 to be installed inside the control box, the EJ- 210 can be installed in the same way. Contact a MIURA sales office for more details. A parts kit is required to install the EJ-210 inside a control box. Contact a MIURA sales office for more details. -
Page 13: Precautions When Installing The Steam Pressure Sensor
5.4. Precautions when Installing the Steam Pressure Sensor The EJ-210 can use boiler pressure as control information if the optional steam pressure sensor is installed on the boiler. Be aware of the following points when installing or wiring the steam pressure sensor. -
Page 14: Wiring
Perform wiring by passing each wire through the specified wire inlet. OPR board Switching power supply I/O board CPU board EC11 M-NET3 communication line wire Power supply wire RS-422 communication Steam pressure Signal wire line wire sensor wire Figure 6-1: EJ-210 wiring procedures... -
Page 15: Terminal Arrangement On Control Circuit Board
J3 J2 J1 88 89 N(S) G(FG) G(FG) L(R) Gray Figure 6-2: Terminal arrangement on EJ-210 I/O board 6.4. Wires for Use Use wire appropriate for the application that does not exceed the maximum length. Table 6-1: List of wires Cross-... -
Page 16: Signal Wires
No. 66 and No. 6 terminals. 6.5.2. Output Signal The EJ-210 has the following 5 contact outputs. The No. 19 and No. 79 terminals and No. 36 and No. 76 terminals are required for control. Be sure to make connection with the boiler for these terminals. -
Page 17: Rs-422 Communication Line Wiring
, 0.9 mm, 2P, copper braided screen) to communication line wire (FCPEV connect the RS-422 communication conversion circuit board EC11 of the EJ-210 to the RS-422 communication conversion circuit board EC11 that is connected to the boiler-side CPU board. <EJ-210 side>... -
Page 18: M-Net3 Communication Line Wiring
Refer to the Installation Manual for the M-NET3 communication system before performing wiring. To prevent the communication line wire from becoming loose or disconnected, form the wire into an arc and secure it with a cable tie to the mounting base attached on the EJ-210. A mounting base attachment hole is provided to the left and right of the M-NET3 communication line wire inlet. -
Page 19: Steam Pressure Sensor Wiring
(2) Pass the steam pressure sensor wires through the bushing in the steam pressure sensor wire inlet. (3) Connect the steam pressure sensor wires to the specified terminal block on the EJ-210 and the side face of the EJ-210, as shown in the figure below. -
Page 20: Standard Connection Diagrams
Document No.: E20-018-00 6.9. Standard Connection Diagrams These diagrams show the standard connections between the EJ-210 and boiler. (1) Boiler with BL-model or XJ1-model controller mounted Boiler control box Boiler operation terminal EJ-210 EJ21 CPU board EC11 EC11 CPU board... -
Page 21: Examples Of Wiring
Terminal block of boiler operation terminal EJ-210 NOTE 1: indicates removed wire. indicates added wire. NOTE 2: Connect so that the numbers of the parts of the EJ-210 match the numbers of the parts of the boiler sequence. NOTE 3: Connect to the boiler ground terminal. -
Page 22: Boiler With Xj1-Model Controller Mounted
Document No.: E20-018-00 7.2. Boiler with XJ1-model Controller Mounted...
Need help?
Do you have a question about the EJ-210 and is the answer not in the manual?
Questions and answers