Page 3 - FCC COMPLIANCE NOTICE
Computer Process Controls, Inc. 1640 Airport Road Suite #104 Kennesaw, GA 31044 Phone 770-425-2724 Fax 770-425-9319 ALL RIGHTS RESERVED The information contained in this manual has been carefully checked and is believed to be accurate. However, Computer Process Controls, Inc. assumes no responsibili...
Page 5 - Table Of Contents
MRLDS I&O Manual Table of Contents • v Table Of Contents 1 OVERVIEW ................................................................................................................................................................... 1 1.1 S PECIFICATIONS .............................................
Page 7 - Overview; Specifications; MRLDS Models
Specifications Overview • 1 1 Overview CPC specs a modular refrigerant leak detection sensor (MRLDS) that continuously monitors for low levels of refrigerants most commonly used in commercial refrigera-tion systems. The MRLDS communicates with the E2 controller via a Gateway board connected to the R...
Page 8 - Mounting The Sensor
2 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 2 Choosing a Mounting Location Proper location of the refrigerant sensor is necessary to ensure accurate measurement of representative air sam-ples. Mount the sensor: • Indoors, inside a room area where air circulates freely. • On a flat, interior sur...
Page 9 - MRLDS Dimensions; MRLDS Analog; Network Layout
MRLDS Dimensions MRLDS Analog Version (809-100x) • 3 2.2 MRLDS Dimensions 3 MRLDS Analog Version (809-100x) 3.1 Network Layout 3.2 MRLDS Wiring For analog MRLDS units, connect to a MultiFlex board via the analog input (use Belden 8761 cable). Figure 2-2 - Attaching and Removing Cover Figure 2-3 - MR...
Page 10 - E2 Controllers Version 2.5; Refrigerant Type; Analog Jumpers
4 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 3.3 Refrigerant Jumper Settings The jumper settings for refrigerant types are located on the label inside the MRLDS sensor cover (shown in Fig- ure 1-1 ). Set the jumpers according to how they are indi- cated on the label. The MRLDS supports three dif...
Page 11 - RMCC Controllers; MRLDS Modbus; MRLDS Wiring
Network Layout MRLDS Modbus Version (809-101x) • 5 3.4.3 RMCC Controllers For RMCC-type controllers, set the Gain parameter to 250 and Offset to -1000 . 4 MRLDS Modbus Version (809-101x) 4.1 Network Layout 4.2 MRLDS Setup 4.2.1 MRLDS Wiring 4.2.2 MRLDS Network Addressing Modbus network settings are ...
Page 12 - Modbus Address
6 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 4.2.3 Address Settings 4.2.4 Refrigerant Jumper Settings The jumper settings for refrigerant types are located on the label inside the MRLDS sensor cover (shown in Fig- ure 1-1 ). Set the jumpers according to how they are indi- cated on the label. The...
Page 13 - MRLDS Gateway; MRLDS Gateway Setup on; Gateway Connections; The Gateway Board
MRLDS Gateway MRLDS Modbus Version (809-101x) • 7 bits with no parity and 2 (two) stop bits. 4.3 MRLDS Gateway 4.3.1 MRLDS Gateway Setup on I/O Network Modbus versions of the MRLDS must be connected to the 810-3040 MRLDS Gateway. The MRLDS Gateway can be mapped in either of two ways: it can be set u...
Page 14 - Input Voltage; Power Rating
8 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 The Gateway Board communicates with the MRLDS via the Modbus network, which is connected to the Gate-way’s “Receiver Bus” network terminal. The Gateway communicates with the E2 via the RS485 I/O Network. 4.3.4 Powering the Gateway Board The Gateway bo...
Page 15 - Termination Settings
MRLDS Gateway MRLDS Modbus Version (809-101x) • 9 controller’s user manual. To connect the Gateway to an MRLDS, feed the wires through the rectangular opening in the sensor base as indi-cated in Figure 1-1 . Locate the RS485 connector and secure the wire leads to the connector orienting them as show...
Page 16 - GATEWAY; MRLDS GATEWAY
10 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 4.3.9 Setting the Baud Rate Dip Switches Dip switches 6 and 7 control the baud rate at which the Gateway communicates with the site controller on the RS485 Network. These switches must be set to the same baud rate setting as the controller you are us...
Page 17 - Controller Setup for; Mapping The MRLDS as an
Controller Setup for Modbus MRLDS MRLDS Modbus Version (809-101x) • 11 4.3.10.4 Setup/Online Screen 2 - The Setup/Online screen displays the addressing of the devices and whether they are enabled. Press the right/left arrows to select the first address in the list. Toggle the minus button to enable ...
Page 18 - E2/Einstein Controllers; REFLECS Setup for IRLDS IIs
12 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 ways. Navigate to the controller’s Input Status screen and highlight the board and point that you wish to map. Press F1 to go to the Input Setup screen for that board/point. Each point will increase incrementally to correspond with each board. ( For ...
Page 19 - Type; BEC and RMCC Controllers; Input Definitions; Name; Sensor Setpoints
Controller Setup for Modbus MRLDS MRLDS Modbus Version (809-101x) • 13 field to change the name, and press the down or right arrow to move to the (sensor) Type field. Use the “.” and “ — ” keys to scroll through the options and select IRLDS . (The Gain and Offset parameters are automatically configu...
Page 20 - Gain and Offset; Alarm Setpoints; Diagnostics; tors; IRLDS Mode; MRLDS
14 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07 “MV” should be entered for sensor inputs that read fault status. Gain and Offset Since the output terminals emit one volt for every 250 ppm of refrigerant detected, the gain for the refrigerant leak sensors must be set to 250 and the Offset to 0. The...
