Rae FMC-60 Manuale utente

FMC-60

OPERATING HANDBOOK

Manual No.194D1C

C925

RAE Systems Inc.

3775 North First Street,

San Jose, CA • 95134 • USA

raesales@raesystems.com

www.raesystems.com

USA/Canada 1-877-723-2878

Europe/Russia +45 8652 5155

Middle East +971 4 887 5562

China +86 10 5885 8788

Asia +852 2669 0828

Australia +61 3 9431 3500

Toll-Free 877-723-2878

Contents

Page

Contents..................................................................................................................................................1

System Overview....................................................................................................................................2

General Specification..............................................................................................................................4

LED and LCD Indicators ........................................................................................................................5

LED and LCD Indicators ........................................................................................................................6

Buttons and Lockout ..............................................................................................................................7

Entering a password to get to User or Engineer mode ..........................................................................8

Default Passwords ............................................................................................................................8

Direct and Addressable Line text............................................................................................................9

Holding the Display ................................................................................................................................9

Testing the LEDs (7) and Relays (8) ....................................................................................................10

Inhibiting a sensor (14) ........................................................................................................................10

Changing the direct gas type (18) ........................................................................................................10

Gas Type Library ..................................................................................................................................11

Event to remote relay (23) ....................................................................................................................12

Dimming the LEDs (11) ........................................................................................................................12

Mute the buzzer ....................................................................................................................................12

Local and Remote relays......................................................................................................................13

Modbus set up and indicators ..............................................................................................................13

Set Up Network ....................................................................................................................................14

RS232 data log output..........................................................................................................................15

Event log (9) ........................................................................................................................................15

Data to and from a PC using HyperTerminal........................................................................................16

4-20mA Outputs....................................................................................................................................17

Real Time Clock....................................................................................................................................18

Refresh Rate ........................................................................................................................................18

Changing User Password ....................................................................................................................18

Calibrating Gas Sensors ......................................................................................................................18

16 direct 4-20mA gas sensors ........................................................................................................18

64 Addressable gas sensors ..........................................................................................................19

Cell replacement on FMC-60 sensors - sensor calibration ............................................................19

Setting the Time to Alarm ....................................................................................................................19

Setting Alarm Levels ............................................................................................................................19

Alarm Relay off timers ..........................................................................................................................20

Voting Relays ........................................................................................................................................20

Time Weighted Alarms..........................................................................................................................20

Defaulting Sections of the Panel ..........................................................................................................21

Default the Whole Panel from Power Up..............................................................................................21

Repeater (on CAN2) ............................................................................................................................21

Installation ............................................................................................................................................22

Service – Routing Attention ..................................................................................................................24

TWICE YEARLY MAINTENANCE SCHEDULE ..............................................................................24

ACTION TO BE TAKEN IF THE APPARATUS ALARM SOUNDS ..................................................24

Appendix 1............................................................................................................................................25

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. 2 System Configuration Enclosure Detail......................................................................................35

Fig. 3 FMC-60 Circuit Boards ..............................................................................................................36

Fig. 4 Enclosure Detail..........................................................................................................................37

This document is non contractual and the equipment specification and detail may be modified at any time without prior notice.

System Overview

The FMC-60 is a 16 direct (4-20mA) plus 64 addressable channel gas monitoring system

which displays gas concentration and constantly checks for alarm conditions.

Each channel consists of a remote gas sensor located at the point where gas is to be

measured. The direct sensor types are individually wired back to the FMC-60 whereas

the addressable sensors can be connected to a shared CAN bus network minimizing

cable requirements.

Each channel when connected becomes active and is recognised by the system and a

fault would occur if it became disconnected. 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.

Alarms can be individually set to be latched (requires reset button to clear) or unlatched

(self clearing)

The panel can be powered from mains or 24V dc input with battery backup terminals.

An output 24V 250mA terminal is available to power user devices.

The battery input and mains voltage is monitored and will create a fault if the voltage is

too low but the user has the option to disable these faults .

The FMC-60 panel controls most actions and with a dimmable backlit LCD display is

capable of indicating the state of gas measurements or fault conditions. Likewise,

dimmable LEDs internal and external give additional status information.

Many parameters including a text description of the location of a sensor are

programmable via user and engineers menus and retained when power is off.

These parameters are reloaded at the next power up so that the system will perform as it

did previously.

The FMC-60 panel also has two RS485 Modbus channels and can send data when

requested to do so to a Modbus master controller thus allowing independent system

management facilities. Engineering menus allow for diagnostic monitoring of the Modbus

transmit and receive buffers.

A remote repeater can also be connected which allows the LCD, LEDs and buttons to be

located elsewhere on a CAN bus as well as remaining functional on the main panel.

Two 4-20 outputs are available from the FMC-60 panel and these can be assigned to

follow any of the 16 direct or 64 addressable sensor inputs.

A real time clock keeps track of time and this time value is displayed on the LCD and

appended to any panel events such as alarm or fault etc.

These events are retained in a 99 event memory which can be viewed on the LCD or

sent to a PC via the RS232 channel.

Likewise this RS232 channel can accept setup parameters from a PC and if needed can

send the FMC-60 parameters to the PC as a simple text files which can be edited.

Text is sent out via the RS232 channel as an additional data logging facility. Events and

gas level changes are the main types of data presented which the user can capture using

HyperTerminal (or similar) on a PC. Additionally, using RS232 and windows

software the system can be interrogated and displayed in a graphic form on a PC.

The current time is transmitted via the CAN bus and any addressable sensor will receive

it. 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).

On board relays with voltage free contacts indicate alarm and fault states and additionally

4 relays are dedicated to Option Voting whereby sensors can be grouped and the relay is

activated when a number of sensors have gone into alarm. These groups can also be

used for time weighted average alarms covering the requirements of 15 minute and 8

hour measurements. Additionally, all 8 onboard relays and the first 16 of the external

relays have a programmable delay to de-energise parameter which for example allows for

fan evacuation of a space containing detected gas. These relays and the first 16 relays

on the remote relay board can be set to be normally energised or de-energised.

Front panel LEDs indicate the general state of the panel. The red alarm LED will flash for

new alarms until accepted/muted when it stays on constantly until reset. The amber fault

LED comes on if a fault is present. If any sensor channel is inhibited the amber inhibit

LED will be on.

Additional reset and mute terminals are available to allow remote action in the event of an

alarm or fault condition. Test facilities are included in engineering mode, which allow these

relays to be manually activated during commissioning.

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

Indication 4 line 40 character LCD

3 panel LEDs for fault, alarm and sensor inhibit

5 internal PCB LEDs for Can, Modbus and RS232

11 internal PCB LEDs for DC fail, AC fail, sensor fail,

CAN fail, modbus fail, mpu fail, system inhibit overange,

hi-alarm, lo-alarm power.

User interface 7 Buttons on main board and or repeater

Alarm settings 3 Alarm levels which are user selectable

High, Low, and Over range

Latching or Unlatching and direction

4 time weighted - unlatching

Outputs 24Vdc @ 250mA (none inductive loads)

Specific end user voting relays

RS232 data log, (up to 10 metre)

CAN bus (up to 1Km)

Modbus slave to an external Modbus Master

(up to1Km @ 9600 baud)

2 channel 4-20mA (source or sink)

(assignable to any sensor)

Relay card (up to 64 relays)

Fault relay SPCO

Common Low alarm relay - DPCO

Common High alarm relay - DPCO

Common Over Range alarm relay - SPCO

Option 1 voting relay - SPCO

Option 2 voting relay - SPCO

Option 3 voting relay - SPCO

Option 4 voting relay - SPCO

Relay rating 5A@250vac none inductive / capacitive

Audible Buzzer on main processor and remote sounder

Dimensions H 265mm x W 315mm x D100mm

IP rating IP52 optional IP65

Enclosure Mild steel powder coat BS00A01

Cable entry Bottom / rear 20mm push-outs

Weight 5Kg

Terminals Field terminals 2.5mm

Operating temperature 5 to 50 deg C

Features Remote reset

Keylock

Remote repeater panel (option)operating distance 1km

16way 4-20mA catalytic converter panel (option)

LED and LCD indicators

A four line 40 character LCD displays a range of information typically shown below.

Line 1 Standard 4~20mA sensor, values and gas type and location

Line 2 Addressable sensor, values and gas type and location

Line 3 General information, Number of Alarms, Faults and Connected sensors

E.g. D=4 means 4 direct sensors connected

E.g. A=6 means 6 addressable sensors connected

Line 4 Date and Time alternating with user text.

The top line displays the direct 4~20 inputs indicated by D. This will cycle through all

active sensors automatically but will hold on a specific sensor if it is in alarm.

Pressing + button (4) will stop the cycle on the current sensor for 999 seconds.

If a new alarm occurs, the display will show this sensor.

The type of gas and the text associated with this sensor is displayed.

To restart the cycle press the – button (2) or reset (7)

The second line displays addressable inputs indicated by A. this will cycle through all

active addressable (CAN) sensors automatically but will hold on a specific sensor if it is in

alarm. Pressing + button (4) will stop the cycle on the current sensor for 999 seconds.

If a new alarm occurs, the display will show this sensor.

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.

The fourth line displays shows the internal clock reading together with the day and

date. All internal events use this clock to record the time of event.

If an alarm or fault event occurs, the clock display is substituted with the text for this

event and will alternate every second or so if the text is lengthy but will remain readable.

This text which describes the event (eg Modbus fail) is also the same text which is stored

in the event log which can be viewed separately. (see Event Log).

This line also alternates with user text, eg company name and telephone number.

Direct

sensor

Gas Value

D4 20 %LEL xxxxxxxx xxxxxxxxxxx

A6 10 PPM CP xxxxxxxx xxxxxxxxxxx

Alarms = 0 Faults = 0 Sensors D = 4 A = 6

16.40 Mon 1 Jan 2006 GDS Technologies Ltd 0113 2860166

Gas Type Customer Programmable text

Addressable

sensor

}

Continuously

updating

display lines

alternating user text

display (programmable)

The LEDs local to the panel are as follows:

Alarm Internal/ Colour Description

External

Or Alarm I Red on if any sensor currently has an over range alarm

Lo Alarm I Red on if any sensor currently has a low alarm

Hi Alarm I Red on if any sensor currently has a high alarm

DC fail I Amber on if battery is low

AC fail I Amber on if mains has failed

Sensor fail I Amber on if any sensor has failed

CAN fail I Amber on if any addressable sensor has stopped communicating

Modbus fail I Amber on if the Modbus master has stopped communicating

System Inhibit I Amber on if the system is not checking alarms

Sensor Inhibit X Amber on if any sensor has been inhibited

MPU fail I Amber on if the processor has had a watchdog reset

Power I Green on if power applied

Fault X on if a fault exists

Alarm X on if alarm exists

(I = view internal X = view external)

If the fault or alarm LED is flashing, this indicates a new event and when accepted by

pressing the up (1) button it remains on (not flashing).

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. Also, it allows the displayed sensor to be

moved onto the next active sensor.

Button 2 is the “-“ button. Used when decrementing items in engineers menu, also to

escape from the engineers menu system when not in any specific menu.

Button 3 is the SELECT button. It is used to enter and exit many of the engineerʼs menus.

Also when first pressed, it prompts the entry of an engineerʼs password. When correct,

engineerʼs mode displays menus which can be selected by pressing the select button again.

Button 4 is the “+” button. Pressing this allows the display to hold the automatic sequence

of sensors being displayed for 999 seconds.

When in engineerʼs mode, it is used to increment parameters which are being modified.

Button 5 is the DOWN button. Used when decrementing items in the engineers menu.

Button 6 is the DIM button. It is used for dimming the LED and LCD backlight and will

toggle between full brightness and the dim level previously set in the engineers menu. Dim

can be used at any time except when doing an LED test whereby automatic dimming occurs

to reduce current.

Button 7 is the panel RESET and is used to clear faults or alarms. It is generally active and

will act regardless of entry of passwords.

To prevent unauthorised use of the buttons, Key lock input is provided on the main

processor PCB, and the buttons are locked out of use when this terminal is connected to 0V

(adjacent terminal) Even when locked, the buzzer can still be muted by pressing the accept

button (1).

Processor reset button and a flash programming slide switch are situated directly on the

PCB and are not accessible from the front panel.

This button when pressed will restart the processor as if just powered up and should only be

used in the event of a system crash. The slide switch should be in the up position (run) for

normal operation.

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. clock set, LED test etc. The second 4 button password is the Engineers mode which

gives access to all menus including the users. A sequence of 4 buttons is accepted as the

entry for a password.

To start the entry of the password, press SELECT (3).

The password display is shown on the LCD and each of the 4 buttons in sequence can

now be pressed.

Default Passwords

Users password is defaulted to DOWN (5) pressed 4 times.

Engineerʼs password is defaulted to + (4) pressed 4 times.

Changing the user password is described later. The engineerʼs password cannot be

changed.

This is the complete list of user and engineer menus.

See Appendix 1 for further details

1 View modbus reg

2 Set Clock

3 Inhibit all Sensors

4 View modbus txrx

5 Refresh rate

6 Edit Company text

7 Lamp Test

8 Relay test

9 Event log to Lcd

10 Add zero/span

11 Lcd Led Bright

12 Exit

13 Top of engineers

14 Inhibit sensor

15 Add alarm levels

16 Adjust 4-20ma out

17 Alter chan text

18 Alter gas type

19 Assign 420 out

20 4-20mA zero span

21 4-20alarm levels

22 Unlatched alarms

23 Event to Relay64

24 Relay off timers

25 Channel voting

26 Seconds to alarm

27 Setup Network

28 Event log to PC

29 Data PC to Panel

30 Data Panel to PC

31 Ltel Stel alarm

32 Default Sections

33 Change User code

34 Set Modbus baud

35 Set Power Alarms

36 Energised Relays

USER

ENGINEER

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. Using Engineering mode, this text can be altered

from the default text to something more meaningful.

Editing this text is either manual using buttons and the LCD or by sending a text file from

the PC. The latter is much faster and is preferred. The manual mode is activated from

Engineers menu 17 which presents the direct 4-20 channels text first followed by the

Addressable text.

Pressing + (4) or - (2) changes which channel is to be altered and pressing UP (1) button

enters the text editing mode for this channel. The + and - buttons now move a cursor

under the text and UP and DOWN alter the character at this cursor position. When editing

is finished for this channel, press SELECT to exit the editing which returns to allow

changes on another channel by pressing the UP button again. Alternately pressing

SELECT will exit the direct 4-20 channel text and enter the Addressable channel text

selection. Again the buttons are used in exactly the same way to change the text

description for networked Addressable sensors.

SELECT when pressed will exit the manual mode and save the text changes in non

volatile memory on the main PCB and return to the Engineers menu.

See also DATA to and from a PC using HyperTerminal which allows a much quicker

method of editing using a PC.

Holding the Display

As the sequence of displaying the gas occurs, it may be required to stop on a particular

channel for maintenance.

This can be achieved using the + (4) button on the front panel which when pressed will

hold the current sample for 999 seconds. A countdown is displayed on the LCD showing

that hold is in progress. At the end of this time normal display sequencing will resume.

The gas values displayed on the LCD during hold are still the current live readings from

the sensors.

Hold can be removed at any time by pressing the + (4) button for a second time.

As the sequence of displaying continues it is sometime required for maintenance to

choose another sensor for display and this can be achieved using UP (1).

This button when pressed terminates the current display it moves to the next displayed

channel and if pressed continuously, this button will step through all available sensors

When the desired channel is reached and the button released, press + (4) to hold this

display for 999 seconds. Pressing + (4) will release the system back to normal.

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