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Rae FMC-60 Operating Handbook

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Manual No.194D1C
C925
FMC - 60
OPERATING HANDBOOK

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  • Page 1 Manual No.194D1C C925 FMC - 60 OPERATING HANDBOOK...

  • Page 2: Table Of Contents

    Menu details by number Appendix 2 ............................31 Appendix 3 ............................32 Modbus Register Specification for FMC-60 16 channel + CAN system Appendix 5 ............................33 Toxic DIL header configurations Fig. 1 PC adapter (converts sensor data output to RS232 for PC System Configuration ....34 Fig.

  • Page 3: System Overview

    This allows a system to be activated on an individual sensor basis as commissioning takes place. The gas types and alarm levels for Direct channels are set at the FMC-60 panel but addressable types transmit this information to the panel. However, alarm levels for addressable sensors can be altered at the FMC-60 panel or at the sensor itself.
  • Page 4 Those addressable sensors with a local LCD display will show this time in addition to the gas concentration data etc. Button action on the FMC-60 panel can be protected by a Key lockout connection to prevent misuse. However, muting the buzzer which sounds if an event occurs can still be silenced by pressing the accept button (1).

  • Page 5: General Specification

    General Specification Direct 4-20mA sensors 16 max Addressable sensors 64 max (CAN bus) Sensor types Electrochemical - Infra Red - Pellister (see features) Sensor cable Addressable CAN bus, 4Core 1.5mm screened Direct 4-20 2/3 core 0.5mm screened Power supply 230/115 AC 50/60Hz 24Vdc or Battery (external charger) Consumption Main processor board 5 watts...

  • Page 6: Led And Lcd Indicators

    The type of gas and the text associated with this sensor is displayed. The third line displays the number of alarms and faults present in the FMC-60 system. Normally these are zero. Additionally, the number of 4-20 and Addressable sensors in the system are displayed.
  • Page 7 The LEDs local to the panel are as follows: Alarm Internal/ Colour Description External Or Alarm on if any sensor currently has an over range alarm Lo Alarm on if any sensor currently has a low alarm Hi Alarm on if any sensor currently has a high alarm DC fail Amber on if battery is low...

  • Page 8: Buttons And Lockout

    Buttons and Lockout 7 user buttons are provided on the front to allow control and setting up of the FMC-60 system plus a PCB button. These buttons are also numbered and shown in brackets. E.g. button 3 is (3). Button 1 is the Accept/Mute and UP button. When in engineerʼs mode, it is used to increment parameters which are being modified.

  • Page 9: Entering A Password To Get To User Or Engineer Mode

    Entering a password to get to User or Engineer mode System parameters can be altered but not by unauthorised people. Two passwords have to be entered to gain access to available menus which allow changes to be made. The first 4 button password is the User mode and gives access to a limited set of menus, E.g.

  • Page 10: Direct And Addressable Line Text

    Direct and Addressable Line text The FMC-60 system measures data on all active sensors. Direct sensors are done sequentially but addressable sensors send their data periodically when available (every few seconds). Each sensor has a text description (stored on the main pcb, not in the sensor) which describes physically where it is in the system and this text appears on the LCD as the most recent measurement is displayed.

  • Page 11: Testing The Leds (7) And Relays (8)

    Note that it is not possible to change the gas type for addressable sensors. This is because the sensor type is set by the sensor itself and the main FMC-60 panel will display the gas type according to the data received from the sensor.

  • Page 12: Gas Type Library

    Gas Type Library O2FF Oxygen 0-25% two falling alarms O2RF Oxygen 0-25% one falling one rising alarm CO2_30 Carbon Dioxide 0-30%V CO2_2 Carbon Dioxide 0-2%V Hydrogen Sulphide 0-50ppm Carbon Monoxide 0-250ppm Sulpher Dioxide 0-10ppm Nitrous Oxide 0-100ppm Nitrogen Dioxide 0-10ppm Chlorine 0-10ppm Hydrogen 0-1000ppm Hydrogen Cyanide 0-25ppm...

  • Page 13: Event To Remote Relay (23)

    Event to remote relays (23) The following events can be assigned to remote 1-64 relays by using ENGINEERS menu 23. 4-20 direct chan fail 4-20 direct chan hialarm 4-20 direct chan loalarm 4-20 direct chan hialarm 4-20 direct chan oralarm chan fail chan hialarm chan loalarm...

  • Page 14: Local And Remote Relays

    34. All communicating devices in a Modbus system should be set to the same baud rate and the FMC-60 system is capable of supporting 19200, 9600 and 4800 baud. 9600 is set by default.

  • Page 16: Set Up Network

    An ʻSʼ shows that a sounder, relay device is present on the network. ʻCʼ represents a can sensor. The Y indicates to the FMC-60 that text and LED data should be sent to a repeater and also that button presses on that repeater should be accepted by this FMC-60.

  • Page 17: Rs232 Data Log Output

    RS232 data log output In addition to Modbus, an additional data stream showing actions within the FMC-60 system is available via the RS232 output. This consists of a 3 wire interface which can connect directly into the serial port (RS232) connection on a PC which is a 9 way D-type female connector (not supplied).

  • Page 18: Data To And From A Pc Using Hyperterminal

    Data to and from a PC using hyperterminal Within the FMC-60 system there are parameters which have to be set such as the text which describes the location of a particular sensor. Whilst these parameters can be set manually using the buttons, it is quicker and easier to send a text data file from a PC using the RS232 interface via Hyper Terminal (which is standard on a Windows XP PC).

  • Page 19: 4-20Ma Outputs

    4-20mA outputs Two 4-20 mA output are provided at the FMC-60 and these can be assigned to represent any of the 16 direct or 64 CAN sensor readings. Using ENGINEERING menu 19, use UP (1) and DOWN (5) to toggle between setting direct or CAN sensor channels and use + (4) and - (2) to change the sensor number assigned to 4-20 output 1.

  • Page 20: Real Time Clock

    4-20mA signal to input to the FMC-60 (see sensor data sheet) This signal input to the FMC-60 would produce a 0 to 100% of the signal range but a further level of calibration trimming is possible at the FMC-60 panel.

  • Page 21: Addressable Gas Sensors

    + or – buttons on FMC-60 to zero the reading on each sensor. Press the SELECT button on FMC-60 to enter the span mode which gives plenty of time to visit each sensor. Gas each sensor with appropriate calibration span gas return to the FMC-60 panel and using the UP and DOWN buttons to view each sensor address and using the + or –...

  • Page 22: Alarm Relay Off Timers

    Alarm relay off timers The 8 relays on the PCB are allowed to take time to de-energise. For example, this delay could be used to keep fans running for a longer period after the gas alarm to allow a larger area to be vented. ENGINEERS menu 24 allows each of the 8 relays to be selected by using the UP (1) and DOWN (5) buttons and then for each relay use the +(4) and -(2) buttons to change the time for delay in increments of 1 second.

  • Page 23: Defaulting Sections Of The Panel

    Using the CAN network, 4 core (2 data + 2 supply) cable, a repeater can be connected which gives a user interface identical to the main FMC-60 panel. In fact the data displayed on the repeater board is transmitted from the main panel.

  • Page 24: Installation

    Installation SITING THE SENSING HEADS A key feature of the installation is the correct positioning of the sensing head. Several considerations must be taken into account, the most important being the density of the gas. Density (air = 1) Acetone Hydrogen-Sulphide 1.18 Acetylene...
  • Page 25 protection given against wind and rain by the use of weather or collector cones. The control unit is designed for installation in a safe area only. Positioning of the instruments should be chosen with regard to the following points: • Away from sources of local heat with room for adequate ventilation •...

  • Page 26: Service - Routing Attention

    Service – routine attention The owner or occupier of the premises should place the supervision of the system in the charge of a responsible executive, whose duty it should be to ensure the day to day operation of the system and to lay down the procedure for dealing with a gas alarm, (see below) or fault warning.

  • Page 27: Menu Details By Number

    Using UP / DOWN and SELECT allows the date and time to be changed. Note, if the CAN communication connection is made to other FMC-60 panels, the time from the lowest address panel will impose itself onto higher panels. So this means that the time should only be adjusted on the lowest address panel and then this new time will appear on other higher address panels.
  • Page 28 Adjust 4-20 mA Outputs The FMC-60 has two 4-20 outputs which can be assigned to follow individual sensors. The zero point (ie 4mA) and full span point (ie 20mA) have to be electronically set within FMC-60 and this menu allows this adjustment.
  • Page 29 Alter Channel Text Each sensor has text associated with it to describe its location. This text can be altered manually if required using this menu. Use UP and DOWN to choose the line to be edited and then press ENTER to go into edit mode. A small cursor will appear below the text indicating that the character above it can be altered.
  • Page 30 Pressing SELECT will exit this menu. Additionally, pattern 8765 321 ca be redirected to 7 relays on the FMC-60 input pcb. The fault relay (4) always remains as Fault but the remaining relays are assigned as follows: Low High Overange Opt1 Opt2 Opt3 Opt4 will mimic remote relays 1235678 respectively.
  • Page 31 Setup Network Both Modbus and CANbus require that this panel has a communication address and this can be set using this menu. UP and DOWN change the displayed address which is common to both CAN1 bus and CAN2 bus. Pressing SELECT changes the display to view of all CANbus devices currently connected to this panel.
  • Page 32 Set Modbus Baud This menu allows you to change the Baud rate used by the Modbus (default is 9600). The options are 19200, 9600, 4800 bits per second and these are altered using the UP and DOWN buttons, Pressing SELECT will exit from this menu. Set Power Alarms The panel detects both mains power and battery/DC power.

  • Page 33: Appendix 3

    Appendix 2 A typical text file that can be sent to the FMC-60 system. Remember lines starting with “:” are for direct sensors and * are for CAN sensors: Settings.txt Data to PC from panel address 2 :T1, Hold 3...

  • Page 34: Modbus Register Specification For Fmc-60 16 Channel +Can System

    Appendix 3 Modbus Register Specification for FMC-60 16 channel +CAN system Function code 03 used througout to access these 16 bit unsigned registers Baud rate 4800,9600,19200 No parity 2 stop bits 2 channel known as Duty and standby (RS485) Register...

  • Page 35: Toxic Dil Header Configurations

    Appendix 5 Toxic DIL header configurations These links configure the electrochemical cell and the table below show some typical values used...
  • Page 36 Fig. 1 PC adapter (converts sensor data output to RS232 for PC) The 9 Way D-type plugs into the PC com port and the pre wired sensor connector is inserted into J1 on the sensor PCB. When HyperTerminal on the PC set at 4800 baud (no handshake) and connected to the com port, the PC should now display the continuous sensor output .
  • Page 37 Fig. 2 System Configuration Repeater panel 4 core Hazardous Area 3 core Direct 4 core CAN relay unit FMC - 60 CONTROL UNIT Repeater panel CAN 1 Hi Lo Ov Hi Lo Ov can 1 CAN 2 Hi Lo Ov Hi Lo Ov can 2 CAN relay unit...
  • Page 38 Fig. 3 Circuit Board details Power supply and Input / Outputs Processor PCB...

  • Page 39: Fig. 4 Enclosure Detail

    Fig. 4 Enclosure Detail FMC-60 Select RESET 265mm 228mm 100mm 315mm 278mm FMC-60 Select RESET...
  • Page 40 Thank you for reading this data sheet. Please contact us for a quotation: Head Office (UK) Switzerland Office P.O. Box 2124 Zugerstrasse 46 Chelmsford 6314 Unterägeri Essex CM1 3UP England Switzerland Tel: +44 (0)1245 600 560 Tel: +41 41 541 5877 Fax: +44 (0)1245 600 030 Fax: +41 41 541 5878 Email:...

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