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Detcon MCX-32-N1P Operator's Installation And Instruction Manual

Gas detection controller
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Model MCX-32-N1P
Model MCX-32-N4X
Gas Detection Controller
Operator's Installation and Instruction Manual
Covers all Model MCX-32 Control Systems
DETCON, Inc.
4055 Technology Forest Blvd.,
The Woodlands, Texas 77381
Ph.281.367.4100 / Fax 281.298.2868
www.detcon.com
February 15, 2013 • Document #3624 • Revision 2.3

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Summary of Contents for Detcon MCX-32-N1P

  • Page 1 Model MCX-32-N1P Model MCX-32-N4X Gas Detection Controller Operator’s Installation and Instruction Manual Covers all Model MCX-32 Control Systems DETCON, Inc. 4055 Technology Forest Blvd., The Woodlands, Texas 77381 Ph.281.367.4100 / Fax 281.298.2868 www.detcon.com February 15, 2013 • Document #3624 • Revision 2.3...
  • Page 2 Model MCX-32 This page left intentionally blank Model MCX-32 Instruction Manual...

  • Page 3: Table Of Contents

    Model MCX-32 Table of Contents Introduction ............................1 Description ............................1 System Operation ..........................1 1.2.1 Interface PCA .......................... 2 1.2.2 Communication Ports ......................2 1.2.3 Auxiliary Relays........................3 1.2.4 Auxiliary 24VDC input......................3 Programming Configuration ......................3 Installation (N1P Enclosure) ......................4 Mounting and Cable Installation ......................
  • Page 4 12.1 MCX-32 IP Address Documentation ....................48 Table of Figures Figure 1 MCX-32-N1P Controller Mounting and Dimensional View ............4 Figure 2 AC/DC Inputs..........................5 Figure 3 MCX-32-N4X Controller Mounting and Dimensional View ............5 Figure 4 RS-485 Wiring Terminals for PORT1, PORT2 and REMOTE ............7 Figure 5 Model DA-4 4-20mA Input Module and 4-20mA Gas Sensor Connections ........
  • Page 5 Model MCX-32 Figure 24 Modbus Utilities...........................25 Figure 25 Device Modbus Diagnostics Screen....................25 Figure 26 Alarm Inhibit Screen ........................26 Figure 27 Power Management Screen ......................27 Figure 28 Power Management with Battery Charge ‘ON’................27 Figure 29 Display Settings ...........................28 Figure 30 Compact Flash Screen ........................28 Figure 31 TWA &...
  • Page 6 Model MCX-32 This page left intentionally blank Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas 77381 Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067 www.detcon.com Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 • • sales@detcon.com Model MCX-32 Instruction Manual...

  • Page 7: Introduction

    1.1 Description The Detcon Model MCX-32 is a multi-channel gas detection controller designed to serve as a host monitor and controller for a network of gas detection sensors as well as a wide range of other field devices. All MCX-32 models are configurable for up to 64 channels and can communicate with serial sensors directly via RS-485 Modbus™...

  • Page 8: Interface Pca

    The number of I/O modules supported by the MCX-32 controller will vary depending on the enclosure type chosen due to physical space limitations. A maximum of 2 I/O modules will fit outside the MCX-32-N1P enclosure and a maximum of 16 I/O modules will fit inside the MCX-32-N4X enclosure. I/O modules are normally factory installed unless specifically instructed otherwise.

  • Page 9: Auxiliary Relays

    1.3 Programming Configuration The MCX-32 controller can be configured for various I/O combinations at the Detcon factory based on application specific information provided by the customer on the Configuration Form. It must be verified that the correct quantity and type of I/O modules have been purchased to support the customer’s configuration requirements.

  • Page 10: Installation (N1P Enclosure)

    Installation (N1P Enclosure) 2.1 Mounting and Cable Installation The Model MCX-32-N1P controller is housed in a NEMA 1 panel mount enclosure for indoor use. Securely mount the Model MCX-32-N1P per the mounting dimensions provided in Figure 1. The enclosure is designed to fit a panel opening of 9.25”...

  • Page 11: Dc Power

    Model MCX-32 24VDC NEU (L2) VAC (L1) GROUND Figure 2 AC/DC Inputs NOTE: The input voltage range must be between 110-240VAC. 2.2.2 DC Power For optional external DC power input, connect 20-30VDC to the terminals located on the back of the enclosure, labeled “24VDC”...

  • Page 12: Power Connections

    Model MCX-32 3.2 Power Connections The Model MCX-32-N4X controller can be powered by 110/220VAC, 20-30VDC or both. An internal power supply is available for the MCX-32-N4X that converts 110/220VAC to 24VDC (up to 5Amps) and can power up to 32 sensors and any associated I/O modules. The MCX-32 controller can also be powered by an external DC source that meets the input requirements of the unit if AC power is not available or desired.

  • Page 13: Analog 4-20Ma Sensor Inputs (Da-4)

    Model MCX-32 Figure 4 RS-485 Wiring Terminals for PORT1, PORT2 and REMOTE WARNING: Do not attach more devices to the controller power supply than the power supply has the capacity for, as damage may occur to the controller and will void the warranty. The capacity is 3Amps maximum.

  • Page 14: Figure 6 Model Da-4 4-20Ma Input Module And 4-20Ma Gas Sensors

    Model MCX-32 Sensor 4 Sensor 3 COMM 4-20mA INPUT Sensor 1 Sensor 2 Figure 6 Model DA-4 4-20mA Input Module and 4-20mA Gas Sensors Table 1 DA-4/DI-4 Modbus Addresses Port Module Channel # Decimal Module Channel # Decimal Model MCX-32 Instruction Manual Rev.2.3 Page 8 of 49...

  • Page 15: Dry Contact Inputs (Di-4)

    Model MCX-32 The 4-20mA signals from the sensors are communicated by the DA-4 modules to the controller using RS-485 Modbus™ RTU protocol therefore each DA-4 module must have a unique Modbus™ address. Modules are serially addressed in hex using the two rotary switches on the module’s front panel labeled MSD (most significant digit) and LSD (least significant digit).

  • Page 16: Analog 4-20Ma Outputs (Ao-4)

    Model MCX-32 The state of the contact outputs from field devices are communicated by the DI-4 modules to the controller using RS-485 Modbus™ RTU protocol therefore each DI-4 module must have a unique Modbus™ address. Modules are serially addressed in hex using the two rotary switches on the module’s front panel labeled MSD (most significant digit) and LSD (least significant digit).

  • Page 17: Table 2 Ao-4 Modbus™ Addresses

    Model MCX-32 As an example, assume all 64 channels from the MCX-32 have sensors configured to them and the sensor reading of channel 39 is wanted as an input to another control device. First note that channel 39 corresponds to module 10 in Port 2 with hex address A9 per Table 2. Therefore, an AO-4 module set to hex address A9 would need to be installed in Port 2 of the MCX-32.

  • Page 18: Alarm Relay Outputs (Rl-4)

    Model MCX-32 Details screen. After identifying the correct port and address for the AO-4 module, the ‘Analog Out’ must be turned ‘ON’ from the Channel Details screen for the specific channel corresponding to the AO-4’s output. A properly addressed AO-4 that is correctly connected and configured to the controller will respond to channel activation with a 4-20mA output reading equal to the current concentration reading reported to the controller for the associated channel.

  • Page 19: Energized Or De-Energized

    Model MCX-32 The MCX-32 controller has been configured to have three separate relay banks (Bank1, Bank2 and Bank3). Each bank can hold up to five RL-4 modules and are defined by addresses 80h-84h for Bank1, 85h-89h for Bank2 and 8Ah-8Eh for Bank3. Anytime a specific alarm is fired for a module in a bank, all corresponding alarms for all modules in that particular bank are also triggered.

  • Page 20: Latching Or Non-Latching Relays

    Model MCX-32 the corresponding relay, once activated, can be deactivated by pressing the Alarm Silence button on the left edge of the screen. 4.4.3 Latching or Non-Latching Relays All alarms - Alarm 1, Alarm 2, Alarm 3, and Fault - can be configured as either latching or non-latching. In non-latching mode, the relay is deactivated as soon as the sensor alarm (alarm relays) or fault (fault relay) condition is cleared.

  • Page 21: Serial Output Gas Sensors (Rs-485)

    Connect the five wires of a Modbus™ capable sensor (Detcon Model 600 and Model 700 Series, typically) to the DIN rail mounted terminal block labeled “RS-485 PORT1” or “RS-485 PORT2” and corresponding power terminal block labeled “VDC Out”.

  • Page 22: General Wiring Notes

     Follow generally accepted guidelines for RS-485 serial networks. Do not wire I/O Modules and/or Modbus™ gas sensors in long-distance ‘T-Tap’ configurations. Instead, use a “daisy-chain” wiring scheme.  Use Detcon Recommended cabling whenever possible.  General Cable Commodore p/n ZO16P0022189 is recommended for a single cable providing serial communications and power.

  • Page 23: Operation

    Model MCX-32 files for data logging. Data is recorded onto these files which can then be viewed from the controller’s Compact Flash screen at the user’s convenience. The CF card can also save the controller’s current configuration and be used to load its saved configuration to other MCX-32 controllers. See section 6.3.12 for more information regarding the data logging feature and Compact Flash screen.

  • Page 24: Password Protection

    Model MCX-32 Figure 14 Model MCX-32 Main Display Screen Along the side of the display are a group of navigation and action buttons labeled: ‘HOME’, ‘ALARM RESET’, ‘ALARM SILENCE’, ‘ALARM INHIBIT’, and ‘MENU’. These buttons perform different tasks when pressed: ...

  • Page 25: System Configuration Screen

    Model MCX-32 Figure 15 Channel Details Screen The Channel Details screen is used to view or change information directly related to a sensor. The Channel Details screen displays the sensor’s description, the current reading, the gas type & units, the channel’s on/off status, the life of the sensor, the range of the sensor, the analog output status, the device type, the sensor status, the alarm values and the bank(s) the alarms are associated with.

  • Page 26: Auto Configure System Screen

    01h. If a response is received, the controller will poll the sensor for information on the sensor type. If the device is a Detcon series sensor, the controller will obtain configuration information from that sensor and store the information. (This information can be viewed on the channel’s corresponding Channel Details screen.) If no sensor is located at that address, the controller will populate the Channel Details screen to...

  • Page 27: Rl4 Setup Screen

    Model MCX-32 located at the bottom of the screen, the controller will save the current configuration of all devices found up to that point, overwriting any previous configuration. Figure 17 Auto Configure System Screen NOTE: The Auto Configure System operation does not recognize DA-4 or DI-4 modules. Sensors connected to the controller using DA-4 or DI-4 I/O modules must be manually configured to the controller.

  • Page 28: Figure 18 Rl-4 Setup Screen

    Model MCX-32 Figure 18 RL-4 Setup Screen Each RL-4 module consists of four relays. To configure these relays, select the ‘RELAY CONFIG’ button at the bottom of the RL4 Setup screen. All four relays will be displayed for each bank. Selecting the ‘RL4 SETUP’...

  • Page 29: Change Password Screen

    Model MCX-32 and NC – Normally Closed Contact.) These relays may be setup as Energized or De-energized, Silence or Non Silence, and Latched or Unlatched by selecting the ‘AUX RLY CONFIG’ button located at the bottom of the RL4 Modules screen. 6.3.3 Change Password Screen The Change Password screen allows the user to change the password required to log in to the MCX-32 controller.

  • Page 30: Alarm Test Mode

    Model MCX-32 6.3.5 Alarm Test Mode When selected, ALARM TEST MODE menu button will simulate alarm conditions by incrementing the gas readings from 0 for all active gas channels at 5% full scale. Once the concentration has reached full scale, the concentration will begin to decrement back to 0 and the controller will exit the test mode.

  • Page 31: Modbus Utilities Screen

    Model MCX-32 6.3.7 Modbus Utilities Screen The Modbus Utilities screen provides the ability to check the status of all Modbus™ addresses for the MCX- 32 controller which includes all 64 channel addresses, all 15 RL-4 addresses and all 16 AO-4 addresses. The information displayed consists of the Modbus Address, Status, COMM Error Count and COMM Error Total Time.

  • Page 32: Alarm Inhibit Screen

    Model MCX-32 6.3.8 Alarm Inhibit Screen The Alarm Inhibit screen allows the user to inhibit alarms for a pre-determined amount of time. The screen is identified as ‘ALARM INHIBIT’. The screen is typically used to inhibit alarms during calibration of a sensor. When logged in, selecting the ‘INHIBIT TIME’...

  • Page 33: Figure 27 Power Management Screen

    Model MCX-32 Figure 27 Power Management Screen The controller has the unique ability to provide a charging voltage for batteries. If batteries are connected to the auxiliary 24VDC input, this feature will provide a nominal 27VDC @ 1Amp (maximum) to the auxiliary 24VDC input to charge the batteries.

  • Page 34: Display Settings Screen

    Model MCX-32 6.3.10 Display Settings Screen The Display Settings screen allows the adjustment of the screen brightness and contrast, the calibration of the screen touch panel, and the setting of the time and date. Figure 29 Display Settings 6.3.11 Restore Defaults When selected, this button will restore default values to all of the channel’s alarm set points.

  • Page 35: Figure 31 Twa & Peak Screen

    Model MCX-32 user can also page back and forth to different dates by selecting the buttons on the bottom of the screen labeled ‘PREV DAY’ and ‘NEXT DAY’. Figure 31 TWA & PEAK Screen Selecting the VIEW EVENTS button displays the EVENTS screen (Figure 32) which allows the user to view recorded events such as alarms, faults, comm errors, alarm inhibits, etc.

  • Page 36: Controller Setup

    NOTE: Do not remove or insert the CompactFlash card while power is applied. The data can also be viewed by removing the CF card and inserting it in a laptop using the Detcon Log File Viewer application. Refer to the Detcon Log File Viewer instruction manual for more information.

  • Page 37: Figure 34 Channel Details Screen

    Model MCX-32 the channel is on or off, the life of the sensor, the range of the sensor, the analog output status, the sensor type, the current sensor status, the alarm thresholds and the RL4 banks. Many of the variables can be changed on this screen.

  • Page 38: Figure 36 Gas/Units Entry

    The Sensor Life field cannot be changed by the user. This field will display ‘N/A’ for sensors connected through DA-4 or DI-4 modules. Detcon 100, 600D and 700 series sensors will update this field automatically via Modbus™. (This field will contain information only if a 100, 600D or 700 series sensor is attached.)

  • Page 39: Figure 37 Change Range Entry

    The Device Type field will either display the type of sensor connected, or the type of I/O Module (DA-4 or DI-4). If the Auto Configure did not find a Detcon Model 100, 600D, 600 or 700 series sensor, this field will display ‘Model 700’...

  • Page 40: Figure 39 Alarm Level Set

    Model MCX-32 Alarm Settings All sensors have three alarm settings. These are labeled ‘ALM1’, ‘ALM2’, and ‘ALM3” for Alarm 1, Alarm 2, and Alarm 3 respectively. The alarm relays can be configured for ascending or descending mode. In ascending mode the relay will be activated when the concentration is above the alarm threshold. The alarm relays can also be activated in descending mode.

  • Page 41: Remote Display

    Model MCX-32 Remote Display The Remote Display option affords the ability to connect a remote monitoring station to the MCX-32 Controller System. The Remote Display contains the same touch screen display and interface PCA as the MCX-32, but it does not have the ability to communicate directly with any of the devices connected to the MCX-32 controller.

  • Page 42: Operation

    Model MCX-32 4. A set of terminal blocks labeled “RS-485” is available for connection to the MCX-32 Controller. Connect the RS-485 cable from the MCX-32 Controller to these terminals. 8.2 Operation The Remote Display operates like the MCX-32 controller, with some important differences. The Remote Display obtains most of the basic information from the controller, such as gas concentration, and alarm or fault conditions.

  • Page 43: Channel Details Screen

    Model MCX-32 is determined by the settings in the RL4 Setup screen on the main MCX-32 controller. See Section 6.3.2. 8.2.1 Channel Details Screen Detailed information for any sensor can be found on the Channel Details Screen. This screen does not allow the setting of alarm set-points or RL4 Banks.

  • Page 44: Figure 44 Remote Display System Configuration Screen

    Model MCX-32 Figure 44 Remote Display System Configuration Screen The System Configuration Screen provides access to six different aspects of the remote display that can be changed by the operator.  SET # OF CHANNELS  CHANGE PASSWORD  DISPLAY SETTINGS ...

  • Page 45: Remote Setup

    Model MCX-32 8.2.2.5 Power Management Screen The Remote Display has the ability to monitor the voltage from the internal power supply, and an auxiliary 24VDC input voltage to the controller. The Power Management screen provides a digital display of the voltages applied.

  • Page 46: Troubleshooting

    Model MCX-32 Troubleshooting If the MCX-32 display does not come on when power is applied to the unit, check the Power Supply Voltage for an output of 24VDC. Also check the Interface PCA, J5 PWR to GND for 24VDC out to the monitor. The MCX-32 provides features to aid in troubleshooting communication problems in the sensor network.
  • Page 47 8. Replace any device that does not communicate properly with the controller. 9. If communication becomes intermittent or bad over a long distance, it may be necessary to install a Modbus repeater in the network. Contact Detcon Technical Support for assistance. Model MCX-32 Instruction Manual Rev.

  • Page 48: Warranty And Customer Support

    Including all implied warranties of merchantability and fitness and the express warranties stated herein are in lieu of all obligations or liabilities on the part of Detcon Inc. for damages including, but not limited to, consequential damages arising out of, or in connection with, the performance of the product.

  • Page 49: Specifications

    Display 5.8” Diagonal Graphic Backlit LCD with Touch Screen Electrical Classification NEMA 1 (MCX-32-N1P), NEMA 4X (MCX-32-N4X) Dimensions MCX-32-N1P – 10.5”W x 8”H x 13''D MCX-32-N4X – 14.25”W x 14.25”H x 8.2''D Operating Temperature Range 0°C to +50°C Warranty One year Model MCX-32 Instruction Manual Rev.

  • Page 50: Hexadecimal Table

    Model MCX-32 11.1 Hexadecimal Table Table 4 Hexadecimal Conversion Table ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 Model MCX-32 Instruction Manual Rev.2.3 Page 44 of 49...

  • Page 51: Remote Display Rs-485 Register Map

    Model MCX-32 11.2 Remote Display RS-485 Register Map The Characteristics of the Modbus slave port are; 9600 baud, 8 bits, no parity, 1 stop bit. Table 5 Remote Display RS-485 Register Map Modbus MCX-32 Modbus MCX-32 Modbus MCX-32 Register Channel Description Register Channel...
  • Page 52 Model MCX-32 Modbus MCX-32 Modbus MCX-32 Modbus MCX-32 Register Channel Description Register Channel Description Register Channel Description 40035 Status* 40079 Status* 40123 Status* 40036 Reading 40080 Reading 40124 Reading 40037 Status* 40081 Status* 40125 Status* 40038 Reading 40082 Reading 40126 Reading 40039 Status*...

  • Page 53: Spare Parts

    3Amp Din-rail mounted Circuit Breaker 320-228861-105 5Amp Din-rail Mounted Circuit Breaker 500-005133-000 MC Series Interface PCA 995-0G306M-100 Graphic LCD Display, Programmed (must be programmed at Detcon) 995-0G3RS0-000 RS-232 / RS-485 option card (installed in Main MCX-32 Display) 976-041400-000 DA-4 I/O Module...

  • Page 54: Revision Log

    Model MCX-32 11.4 Revision Log Revision Date Changes made Approval 07/20/10 Original Release. 08/10/10 Corrections made for Remote Display Option 10/21/10 Updates and modifications added via Final Review 06/02/11 Updates and modifications added relating to wireless function. Integrated different manuals due to different enclosure types into one manual that covers all enclosure types for the MCX-32.
  • Page 55 Model MCX-32 LAN ACCESS: The interface can be then be accessed via any web browser (i.e. Internet Explorer, Google Chrome, Mozilla Firefox, etc.) by typing in the IP Address of the MCX-32: Example: DHCP Assigned IP Address: 192.168.0.120 Web Interface Example: http://192.168.0.120 REMOTE ACCESS: To access the MCX-32 from outside of the local network, a VPN will need to be configured or Port Forwarding to allow web traffic to flow to the device.

This manual is also suitable for:

Mcx-32-n4x

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