METRON FD4 User Manual
MANUAL FOR MODEL FD4 FIRE PUMP CONTROLLERS
Firmware version 5.02
This manual provides General Information, Installation, Operation, Maintenance and System Set-Up Informati on for METR ON Model
FD-4 Engine Driven Fire Pump Controllers.
TABLE OF CONTENTS
PART I General Information ........................................................................................................................................ PAGE 3
PART II Functions ......................................................................................................................................................... PAGE 3
PART III Operation of the Controller ............................................................................................................................. PAGE 4
PART IV Installation & Test Procedure ......................................................................................................................... PAGE 5
PART V Additional Optional Features ......................................................................................................................... PAGE 9
PART V I Opera t o r I nt e r f a c e D e v i c e ( OID) Use and Navigation ........................................................................ PAGE 10
PART VII System Set Point Definitions ........................................................................................................................ PAGE 18
PART VIII Alarm and Event Log Messages ................................................................................................................... PAGE 22
PART IX SD Card File Format .................................................................................................................................... PAGE 25
Appendix A Modbus Protocol ........................................................................................................................................... PAGE 29
METRON, INC.
Hubbell Industrial Controls Inc.
4301 Cheyenne Drive, Archdale, NC 27263
www.metroninc.com
Telephone: (336) 434-2800 Ext. 183
Metron, Inc. Date: 03/22/04 Approved: MH DOC#: 586
Revision: P
Date: 03/15/15 Approved: RA Page: 1 of 34
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PART I: GENERAL INFORMATION
The basic function of the model FD4 Fire Pump Controller for diesel engine driven fire pumps is to automatically st art the engi ne
upon a drop in pressure in the water main, or from a number of other demand signals. This controll er provides aut omatic cycl ed
cranking, alarm and/or alarm shutdown protection for various engine failures. Stopping of the engine afte r the demand peri od is over
may be either manual or automatic. This controller also includes an automatic weekly test starting feature.
QUICK START FEATURE
The quick start feature prompts the user to set up quickly the essential screens for correct use of this fire pump controller. This
feature is initiated by pressing and holding the ‘3 PILOT push button for 2s. Then the following screens will be required to be
completed in the following order:
Start pressure Stop pressure Delay start Time
Date Weekly start time Weekly start day Commissione d date
Double skinned fuel tank Electronic Engine.
PART II: FUNCTIONS
Equipment is provided in the Controller to provide the following functions:
A. Automatic Starting From:
a. Drop in water line pressure
b. Loss of bat tery charger output (i f enabled)
c. Operation of optional remote start switches, such as remote start switch, deluge valve switch, fire alarm switch, etc.
d. Weekly test timer
B. OID – Operator Interface Device - Provided for display of alarm functions, system pressure, battery volts, battery charger amps,
alarm conditions, etc. Includes a 4 line by 20 character LCD for display of system messages and program mi ng.
C. Auto-Off-Manual selector switch.
D. Automatic Cranking - A microprocessor controlled crank cycle timer provides six (6) fixed crank periods separated by five (5)
rest periods each of approximately 15 seconds duration.
E. Alarms and Signal Lights – Twenty Two (22) Standard lights are provided to give visual signals for; "System Fault”, "Battery
#1 Healthy”, Battery #2 Healthy", "Charger #1 Failure", Charger #2 Failure”, “AC Power Loss”, “Engi ne Running”,
"Engine Failed to Start", "Engine Low Oil Pressure", "Engine High Water Temp", "Engine Overspeed", “Low Fuel”,
”ECM Failure”,”ECM Warning”,ECM Sw.in Alt.”, ”ECM Injection Fault”, “Fuel Tank Leak”,”Clogged Wate r
Strainer”,“High Cooling Water Temp”, “Low Engine Temp”, ”Contactor Coil Failure”, and “Pump On Demand”. In
addition the mode buttons have LED’s on the button indicating “Auto”, Manual ”, “Test”, or “Off” mode. 2 additional lights,
configurable by the factory, can be provided for "Pump Room Alarms". An audible alarm horn is mounted on the front of the
cubicle for sounding in the event of failure. Terminals are provided for remote failure indication of the following:
"Automatic Mode"
"System Fault"
"Engine Running (2 sets)"
"Common Battery Fault"
First Out Annunciation
This feature can be turned on via screen 313. The STND is no first out alarm sequence.
F3A: This feature when turned on, will make the first alarm to occur fast flash, then all subsequent alarms slow flash. A first out
reset input is required, to clear the first alarm (Pilot pushbutton currently). Pressing the mute pb will turn all slow flashin
to steady, First out alarm will slow flash.
F1A This feature when turned on, will make the first alarm to occur flash, then all subsequent alarms will show steady. A first
out reset input is required (Pilot pushbutton currently), to clear the first alarm. Pressing the mute pushbutton will silence the
mutable alarms, First out alarm will be on steady.
g alarms
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F. A data logger is provided as standard to record system pressure along with numerous alarm conditi ons and syst em events. The
data can be displayed on the OID or can be downloaded to a PC through the RS485 port provided o n the m ain system board.
Data is stored on an SD Memory card. This card contains individual pressure files with each file containing one days worth of
pressure data. Each file is of the PressXXX.txt format. Each entry is stamped with the date and time and system pressure at that
time. The Events.txt file contains all of the logged events with each event stamped with date and time. The SD memory card can
be removed and files transferred directly to a PC using appropriate memory card reader. The controller will continue to operate
normally with the SD card removed. There will, however, be a visual and audible alarm when the card is removed. Events and
pressure data will continue to be logged while the card is missing. The memory cards should be replaced within 12 hours to
ensure that no data is lost.
G. A weekly test timer is supplied to automatically start the engine any set day of the week, at a set time of day, and a preset run
time. See Part IV below for more information and the System Config Screen 106.
H. "Stop" Pushbutton - A pushbutton is provided to stop the engine in Auto at any time provided all starting demands have
cleared. This returns the controller to the automatic position. The Auto-Off-Manual selector switch can also be put in the “Off”
mode to stop the engine. Any starting commands will not start the engine in the “Off” mode.
I. Integral Battery Chargers (Option J). There are two separate fully automatic, solid state chargers provided for maintaining full
charge on the dual sets of engine batteries. An LED display is provided on each charger to indicate charger AC input voltage is
present and DC output voltage is present.
User Preferences Screen 218 and 219 are used to determine when the Charger Failure alarm will activate. When Screen 218 is
set to No, the Charger Failure alarm will not be active while the engine is running. Should both chargers fail or switch off due to
a high voltage output from the engine alternator, the AC Power Failure lamp may come on. This is normal. It will reset
automatically once the engine stops running and the charger failure alarms reset. When Screen 218 is set to Yes, the Charger
Failure alarm will be active at all times when the Mode selector switch is in the Auto or Manual mode. Screen 219 is used to
determine the time delay between the failure contacts on the charger closing and the Charger Failure lamp and audible alarm
sounding on the controller.
J. Cabinet - A heavy gauge steel cubicle encloses the controller. The OID, the key operated Auto-Off-Manual (AOM) Selector
Switch and manual start pushbuttons are mounted on the outer door. The battery circuit breakers are located inside the cabinet on
the main back panel of the unit. A key for the AOM switch is stored in a break-glass housing on the door of the cabinet. An
additional key is located inside the cabinet.
PART III: OPERATION OF THE CONTROLLER
A. When the controller is the "Auto" mode and both circuit breakers are in the "On" position, the controller is in standby
condition ready to start the engine automatically. A green pilot light above the "Auto" button will illuminate in this mode.
Also, Battery #1 Fault and Battery #2 Fault lights should be off indicating that battery power is availabl e.
When the water pressure drops below a level which is set in System Config Screen 101, the Control ler will actuat e the starter
motor and the cranking cycle will commence. In addition the “Pump on Demand” light will illuminate. If the engine starts and
runs, cranking will cease and the protective circuits will be operative. If the engine fails to start after six (6) crank periods,
cranking will cease, the "Engine Failed to Start" light will illuminate, and the alarm horn will sound. The fuel solenoid will
stay on for one hour however. This is to allow the engine to continue to run in the event the failed to start condition was due
faulty speed switch signal from the engine. The battery alternating circuit alternates batteries on each crank attempt unless one
battery is in a discharged state and incapable of cranking the engine. In this instance, the control will lock onto the other battery
for the remaining cranking attempts. Dry contacts for rem ote indicat ion of "Battery Failure" are provided.
The panel is wired so that optional remote start switches may be used, such as Deluge Valve, Remote Start pushbutt on, External
Pressure , These start switches will also cause the “Pump on Demand” light to illuminate.etc. In addition, when “Power
Failure Engine Startup” feature is enabled (System Config Screen 111), the Controller will automa ticall y start the engi ne upon
loss of Battery Charger output or AC Power loss, after an adjustable time delay (System Config Screen 112).
While the engine is running, all protective circuits are operative. If the engine stops whi le running, an d there is still an a ut o st a rt
demand, the control will attempt to restart the engine. If the engine fails to start the "Engine Failed to Start" light will
illuminate and the alarm will sound. If, while the engine is operating, the oil pressure drops bel ow a safe limit, the “Low Oil
Pressure” light will illuminate immediately. After approximately seven (7) seconds the alarm will sound. Should the engi ne
temperature exceed a safe limit while running, the “Engine High Water Temp.” light will illuminate after a seven (7) second
time delay and the alarm will sound indicating engine overheating.
to a
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In case of Overspeed, the engine will be stopped and the "Engine Overspeed" light will illuminate and the alarm will sound.
The light and alarm will stay on until the Engine Speed Switch and the Controller are manually reset. To manually reset the
Controller, turn the controller selector switch to Off, then press the Reset button. Then turn the selector switch back to “Auto”.
The Controller may be configured as either "Manual" or "Automatic" stop as required (System Config Screen 104).
"Manual" stop is set as standard. The current status of this setting is visible on the Main System Status Screen where the letter
“A” will appear in the upper right hand corner of the screen when set to Automatic Stop and an “M” will appear when set for
Manual stop. When Automatic stop is enabled the stop timer is preset at the fact ory to 30 m inutes. Longer tim e settings can be
set in System Config screen 105 with a maximum setting of 60 minutes possibl e. When “Automatic Stop” is di sabled, the
engine will continue to run even though the pressure switch or other rem ote starting switch returns t o its norm al positi on. The
engine can be stopped immediately only by pressing the stop button or by turni ng the Auto-Off-M anual swi tch to the Off
position. On engines that do not use the “energize to stop” method (i.e. Caterpillar), the engine may also be stopped by t urni ng
the circuit breakers BATT1 and BATT2 to OFF. If set up for "Automatic" stop, the engine will be stopped aut omati cally upon
restoration to normal of whatever demand switch started the engine providing i t has run at least 30 minut es or longer as set in
System Config screen 105. If the demand period was less than the time set on the auto st op timer, the engine will conti nue to
run until the timer times out and then will stop.
B. When the "Test" mode button is pressed for two or more seconds, t he engine wi ll be st arted by causi ng a drop in water
pressure. Failure alarm circuits will be operative in the "Test" mode. This method of starting provides a test of the Controller,
thereby assuring proper operation when required. The engine will run for the time set in Auto Weekly Test Lengt h Of Run Tim e
(System Config Screen 109) or until the "Stop" push button is pressed or the selector switch is turned to “OFF”.
C. The "Manual" position of the Auto-Off-Manual switch is for manually starting the engine from either battery. The fuel and
water solenoids are energized in this position, and the engine must be cranked by pushing one of the butt ons located below the
OID. "Manual Crank 1" cranks from Battery 1, and "Manual Crank 2" cranks from Battery 2. Pressing both buttons will
result in cranking from both batteries simultaneously.
D. When the engine is given a command to stop for any reason, terminal 12 will energize and will remain on for approximately 15
seconds. The controller will not start until terminal 12 is de-energized again.
E. Periodic Self Testing - The Test Run Timer can be set to give test runs on any day of the week and time of day desired. A
timing element is incorporated in the control so that when the engine starts in this manner, it will run for a definite time before it
shuts down. See System Config Screens 106 through 109 to set the starting tim e and lengt h of engine runni ng.
F. Provision for sequential starting is accomplished by the use of adjustable time delay on pressure drop starting or “Deluge Valve”
starting. On Multiple Pump installations these timers are set sequentially and progressively longer in tim e to prevent more th an
one (1) pump from starting simultaneously with another pump. Fai lure of the lead pum p to start will not prevent subsequent
pumps from starting. The time delay on starting is set in System Config Screen 103.
G. The “Pump On Demand” alarm light is provided to indicate that there is a command to start and run the additive pump
controller. This includes a low pressure condition, deluge valve start signal etc. The alarm light will clear when the start
condition has been cleared such as the water pressure in the system rises above the high set point set in screen 102.
H. The “Contactor Coil Failure” alarm light is to annunciate a loss of continuity to the two engine starting contactors on the engine.
There is a low level DC current that is applied to field terminals #9 and #10 to detect conti nuity in the contactor coils. Shou ld the
contactor coil open or fail, the “Contactor Coil Failure” LED will illuminate and the alarm horn will sound. In addition there will
be an entry in the Event log to indicate which Contactor coil has failed.
I. The “Loss of DC Power” lamp is provided to indicate that both batteries have been disconnected or turned off but AC po wer is
still available. The alarm horn will also sound upon the loss of DC Power and can not be silenced.
J. The “ECM Failure”,”ECM Warning”,“ECM Sw. in Alt.” and “ECM Injection Fault” alarms apply only to those engines that
have electronic fuel control. Should the Electronic Engine Control Module detect a problem, the appropriate alarm LED will
illuminate and sound the horn.
PART IV: INSTALLATION AND TEST PROCEDURE
A. INSTALLATION
The Fire Pump Controller has been assembled and wired at the factory in accordance with the highest workmanship st andards.
All circuits and functions have been thoroughly tested to assure correct operation when properly installed. The installer should
be completely familiar with the external hookup of the engine junction box t o the te rminal bar in the Control le r. Various engi ne
components must be wired to the proper terminal in the controller using the correct size of stranded wire. An appropri ate size
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wire must be wired from the grounding lug in the controller to earth ground. In m ost cases, t he engine manufacturer furn ishes
the engines with all accessories installed and wired to the connection box. Therefore, it is only necessary to wire from the
engine connection box to like numbered terminals in the Controller. Note proper wire sizes. All wires must be stranded.
A drain valve is provided to relieve water pressure to the pressure switch, thus closing the pressure switch contacts and starting
the engine. This test simulates an actual start demand. Since the Controller operates the drain valve only momentarily, a small
amount of water is drained off. The water pressure sensing line to the Controller from the pump must be thoroughly flushed
before connection to the Controller in order to remove chips, particles, or other matt er, that coul d enter t he plumbing
components in the Controller.
Controllers configured with "Automatic Stop" enabled may be changed to "Manual" stop by disabling this feature in Syst em
Config Screen 104. If deluge valve switches are to be used for starting, enable the Deluge Valve Option in Config Screen 121
and connect the remote normally closed switch to terminals 31 and 111.
B. TEST PROCEDURE
All of the following tests should be made on each unit after installation. If each test is satisfactory, the operator may place the
control switch in "Auto" mode and depend upon the panel operating properly when requi red. Also, any one or all of t hese test s
may be carried out at any time after installation, if so desired. NOTE: If 115 Volts A.C. is not connected to Controller, the
"Charger Failure" lights and “AC Power Loss” light and alarm will be activated and if the Power Failure Start feature
(System Config Screen 111) is enabled, the controller will start automatically. The 115VAC must be turned ON to
prevent the engine from starting.
ENGINE TERMINAL (terminals 1-12) STATUS INDICATOR LIGHTS
Light Emitting Diodes (L.E.D.) lights have been installed on the microprocessor module to indicate the status of each engine
terminal. Status indication is given bel ow:
Terminal Number
L.E.D. (light) "ON" Indication
(Microprocessor Func #)
1 (Out 06) Power available to fuel and water solenoids
2 (In 06) Speed switch has operated into engine running mode
3 (In 07) Speed switch has operated into overspeed mode
4 (In 08) Oil Pressure switch contacts closed (Low Oil Pressure)
5 (In 09) Water temperature switch contacts closed (High Engine Temp.)
6 (In 01) Battery #1 voltage present
8 (In 02) Battery #2 voltage present
9 (Out 02) Crank #1 voltage present (while cranking on Bat t e ry #1)
10 (Out 03) Crank #2 voltage present (while cranking on Bat t ery #2)
12 (Out 07) Energize to stop voltage present
a. BATTERY LOCKOUT TEST:
1. Turn on Battery #1 switch and Battery #2 switch.
2. Press the "Reset" button. Battery #1 and Battery #2 Healthy lights should be on.
3. Turn Battery #1 switch off for a couple of seconds and back on. Battery #1 light should go off and remain off.
4. Press "Reset" button. Battery #1 light should come on.
5. Repeat for Battery #2.
b. CRANKING CYCLE TEST: This test simulates a condition where the engine refuses to start.
1. Disconnect Terminal No.1 on Controller panel. NOTE: Disconnecting Terminal No.1 is for the purpose of
removing power from the fuel solenoid so engine will not start. On engines where the fuel solenoid is not used
(Caterpillar), or is connected other than through Terminal #1 (Clarke-G.M.), other means must be used to
stop fuel flow to the engine to prevent starting.
2. Press the "Test" mode button to start cranking the engine. Time the crank and rest periods, and count the num ber of
cranks. There should be six (6) crank periods separated by five (5) rest periods each of approximately 15-seconds
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duration. The "Failed to Start" light should come on and the alarm horn should sound. St atus indi cator li ght for
Terminal #1 should come on as soon as the "Test" push button is pressed and the pressure drops below the low set
point. Indicator lights for terminals 9 and 10 should come on alternately to indicat e cranking cycle. (See above)
3. Press the "Stop" push button to stop the engine and properly reconnect all leads.
NOTE: In order to prevent discharging the starting batteries, this same test can be made without actually
cranking the engine by disconnecting the starter cable and observing the action of the starter contactors
and/or status indicator lights for terminals 9 and 10.
c. CHECKING STARTING MOTOR RELEASE
1. Press the “Test” mode button. Engine should start promptly and starting motor should release at approximat ely 1/3 of
engine speed. Status indicator light for terminal #2 should come on to indi cate speed swit ch has operated t o disconnect
cranking and the Engine Running LED should illuminate.
NOTE: A convenient method of determining the exact instant the starter releases is to connect a battery test li ght or
voltmeter across the starter terminals and observe when power is disconnected.
2. Press the “Stop” push button to stop the engine.
d. OIL PRESSURE FAILURE TEST:
1. Press the "Test" mode button to start engine. When the engine is starting and oil pressure i s not yet up t o full pressure,
the "Engine Low Oil Pressure" light will illuminate, but the horn will not sound. When pressure builds up, and the
switch opens, the light will go out. This feature provides indication that the oil pressure switch contacts are operating
in a normal manner.
Note: On Electronic Engines with electronic oil pressure sensors, the oil pressure light may not illuminate while the
engine is cranking. The low oil pressure test should be performed on these engines with the engine running as described
below.
2. After the engine is running, connect a temporary jumper between terminal #4 and terminal #11.
3. Both the "Engine Low Oil Pressure" light and status indicator light for terminal #4 should come on immediately.
Wait approximately seven (7) seconds. Alarm horn should sound.
4. Press the "Stop" push button to stop the engine and remove jumper between terminal #4 and terminal #11.
5. Wait at least 30 seconds for elements to reset before making any further tests.
e. WATER TEMPERATURE FAILURE TEST:
1. Press the "Test" push button to start engine.
2. Jumper contacts on water temperature switch on engine.
3. Alarm horn sounds and the "High Water Temperature" light on controller will illuminate after approximately 7
seconds. Status indicator light for terminal #5 should come on with "High Water Temperature” l i ght .
4.
Press the "Stop" push button to stop the engine and remove jumper on water switch.
f. OVERSPEED FAILURE TEST:
1. Press the "Test" mode button to start engine.
2. Momentarily short the contacts on the engine speed switch, or connect a temporary jumper between terminal #3 and #6
on the controller.
3. The alarm horn sounds and the "Engine Overspeed" light will illuminate immediately. Engine comes to a stop.
Status indicator lights for terminals #3 and #12 should come on with t he "Engine Overspeed" light .
4. Remove the jumper from terminals #3 and #6 then turn the selector switch to the Off position. Press the "Reset"
button to reset the “Overspeed” alarm. Turn the selector switch back to the Auto position.
g. CONTACTOR COIL FAILURE ALARM TEST:
1. While the controller is in the "Auto" mode disconnect the field wire from terminal 9. Within a few seconds the
"Contactor Coil Failure” lamp should illuminate and the alarm horn should sound. Reconnect the field wire to
terminal 9. The "Contactor Coil Failure” lamp should go out and the alarm horn should silence. Repeat for terminal
10.
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h. AUTOMATIC STARTING TESTS:
1. Place control in "Auto" position.
2. Bleed off pressure in system until pressure drops below the low set point. The “Pump on Demand” light should come
on.
3. Engine should start automatically and continue to run after pressure rises above the high set point, if arranged for
"Manual" stop. If arranged for "Automatic" stop, engine will continue to run for time set on Engi ne Run Tim er and
then stop.
4. Press the "Stop" push button to stop the engine.
5. Repeat tests for each demand switch such as deluge valve, remote start, etc.
i. PERIODIC WEEKLY START TEST:
1. Pressure must be up and all other demand switches de-activated.
2. 115 V.A.C. power must be turned on to the panel.
3. When the current day and time of day matches the settings in System Config screens 107 and 108, the solenoid drain
valve will energize and the engine will begin cranking. It will continue to run for the amount of t ime set.
4. Should a remote manual start occur or a low pressure condition occur while the pump is running on Weekly Test, the
pump will not stop until the Stop pushbutton is pressed or if set for Automatic Stop, the Minimum run timer times out.
5. The periodic Weekly Test function is factory set to No in Screen 106 due to Factory Mutual standard requirements.
Contact the Metron Factory Service department for instructions to turn this functi on on if thi s is not a Fact ory Mutual
insured facility.
j. SETTING PROGRAM WEEKLY TEST TIME: System Config screen 106 through 109.
k. REMOTE START SWITCH CIRCUITS: Field wiring terminals are provided on the controller so that optional remote
start switches such as Remote Pushbutton Stations, Deluge Valve Switch, Fire Alarm Switches, etc., may be used to start
the engine. Two (2) sets of terminals are provided. Terminals #112 and #31 are used for remote manual start push buttons
(close to start). Terminals #111 and #31 are used for remote Deluge Valve Switch or other remote automatic start switches
(open to start). Upon automatic start from this type of switch, the engine will be stopped either automati cally (if set for
automatic stop) after the demand switch de-activates and Engine Auto Stop Tim er tim es out, or m anually at t he Controller.
Terminals #111 and #31 must have a jumper installed if a remote Deluge switch is “Enabled” but not to be used. When t he
controller is shipped from the factory Deluge Valve start is Disabled (System Config screen 121).
l. AC POWER FAILURE STARTING: If this feature has been enabled it can be tested by disconnecting the normal 115
V.A.C. to the Controller. After the preset time delay (which is specified in Sy stem C onfig screen 112), t he Control ler will
commence cranking the engine. The "Charger #1 Failure”, “Charger #2 Failure”, and “AC Power Loss" lamps will
illuminate and the alarm will sound without delay.
m. NORMAL OPERATION – AUTOMATIC: Turn the selector switch to the “Auto" position. A green "Automatic
Mode" light will illuminate and the engine will automatical ly start upon d rop in pressure or operat ion of other st art
switches. If the Auto Stop Timer is disabled (Manual Stop) the engine must be turned off at the Controller. When t he Auto
Stop Timer is enabled, upon termination of the demand signal , the engine will run for the lengt h of tim e left on t he Auto
Stop Timer and then will stop automatically.
n. AN ADJUSTABLE SEQUENTIAL START TIMER IS SUPPLIED FOR MULTIPLE PUMP INSTALLATION:
Normally, the leading pump Controller will not have a delay timer and will commence cranking t he engine imm ediately
upon operation of a demand signal (other than Power Failure which is time delayed). The subsequent Control lers will have
a time delay which is adjustable from 0 to 999 seconds. Each time delay should be set with progressively longer tim es on
each subsequent pump. The recommended time interval is ten (10) to fifteen (15) seconds. This may be extended or
shortened as required by the local authorities having jurisdiction.
o. PUMP ROOM ALARMS: Field terminals may be provided for various inputs from pump room alarms. These alarms
include: Low Fuel, Low Pump Room Temperature, Reservoir Low, Reservoir Empty, Low Suction Pressure, Relief Valve
Discharge and/or Flow Meter On etc. A maximum of ten (8) pump room alarms are available. The Cont roller is arranged so
that the alarm horn will sound and the light will come on when the alarm sensor contacts close. These pump room alarms
can be silenced with the “Silence” push button on the OID if they have been configured as silenceable.
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p. FOAM PUMP OPTION: An optional feature to operate an external pressure dump valve can be provided for Foam Pump
Service if required. Screen 318 is set to approximately 10-15 seconds to operate a dry contact which can be used to operate
the Dump Valve solenoid. This contact will close when a demand for the pump to run is received such as low pressure,
deluge valve, remote start, weekly test start etc. Once the engine is runni ng, the tim ing circuit will start and keep the conta ct
close for the length of time set in screen 318. Then it will open and de-energize the dump valve allowing the pump to
develop full pressure. In addition, if the controller is not activated by a pressure start, the pressure transducer can be
deactivated through screen 319. This will also remove the pressure display from the main status screen of the OID. The
controller can only then be activated by a remote start such as deluge valve or remote start contacts. This a factory settable
option only and must be ordered with the controller before it ships from the factory.
PART V: ADDITIONAL OPTIONAL FEATURES
A. Battery Charger Operation: The Battery Chargers are mounted in the engine controller, and are factory wired to the controller
terminal block from which it obtains its 120 volt, 50-60 Hz. suppl y vol tage, and throug h whi ch it provi des charging current to
the batteries. The charging current to the two (2) batteries and the battery voltage is monitored by the controller and displayed
on the OID. The charger output is current limited and provides full protection duri ng the engi ne cranking cy cle. The charger
input and output are fused for protection in case of a failure of the control circuit or other i nternal component.
Each battery charger is fully automatic, and will charge the batteries at a rate of up to 10 amperes. As the batteries approach full
charge, the current will taper off to a predetermined level at which time the charger automatically switches to the float mode of
operation. In the float mode the charger maintains the batteries at the float potential (approximately 12.7 volts for a 12-volt
battery or 25.4 volts for the 24-volt battery).
The charger provides a means of monitoring the charger output to sound an alarm in case of loss of charger output. This also
provides a means of monitoring the A.C. power since a loss of A.C. power results in a loss of charger output.
Never disconnect the batteries from the controller while the AC power is on to the controller as this may cause damage
to the printed circuit boards.
In the event that a battery is lost or disconnected the output of the charger will stop (0 vol ts). Thi s will allow the vol tage sensing
circuit of the fire pump controller microprocessor to detect a missing battery or open circuit from the batt ery. This will result in
the respective Battery Fault light to illuminate and the alarm horn to sound. Before reconnecting the battery to the controller,
turn the AC power off. Then reconnect the battery to the controller and turn the AC power back on.to reset the alarm.
Generally, when all conditions are normal, the batteries will come to a full charge prior to the 24 hour period. As batteries begin
to charge, the controller OID will indicate a gradual decrease in current flow. When these ammeters indicate a current level of
less than 0.5 amps the charger will be in a trickle mode.
Check batteries daily for a few days after initial installation has been made, and weekly thereafter. Batteries should be checked
for overcharging (gassing), or undercharging (low voltage, or low specific gravity of the elect rolyte or acid.
CAUTION: Under no circumstances should new electrolyte (acid) be added to a battery that has been previously filled.
Only distilled water is recommended for maintenance purposes.
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PART VI: OPERATOR INTERFACE DEVICE (OID) USE AND NAVIGATION
The Operator Interface Device (OID) provides visual indication of the alarms, status of system parameters, and an interface to
change set points to configure the FD4 to operate appropriately for various installation requirements.
Labeled LED
Annunciator
Common Tasks Performed Using The OID
Silencing Horn: If a horn is sounding and the alarm is silence
able, a quick press of the [SILENCE/LAMP TEST] will silence the
horn (less than 1 second press).
Resetting Alarms: If the alarm condition has cleared, press and
hold the [RESET/ESC] button 2 to 5 seconds to reset alarms.
“Engine Failed to Start” and “Engine Overspeed” alarms require
the system to be in the OFF mode before a reset is allowed.
Test Mode: When controller is in Auto Mode, pressing and
holding the [TEST] button for two or more seconds will open the
pressure drain solenoid thus dropping the pressure which causes
the controller to start the engine. Pressing and releasing the
[TEST] button in Manual Mode will illuminate the lamp on the
button but has no effect on the starting.
Lamp Test: To illuminate and check all the OID LED’s and the
horn, press and hold the [SILENCE/LAMP TEST] button 5 or
more seconds or until all the lights turn on. The lamps will cycle
on for 2 seconds and off for 2 seconds.
System Operation and Digital Display With
Control Type Buttons Navigation Buttons
Sample display only. For general reference only.
Page 10 of 34
File Name: Doc#586p.docx
METRON OID202
OID Screen Map
LOSS OF DC POWER
1
SYSTEM
SYSTEM
STATUS
LOGS
AUTO MANUAL TEST
2
CONFIG
POWER
ON
3
CHANGE/
PILOT
ENTER
SILENCE
RESET/
/LAMP
ESC
TEST
1 SYSTEM STATUS B1
PRES STRT BAT1 BAT2
110 100 13V 13V
psi psi 6A 0A
2 SYSTEM STATUS
Engine Countdown Tmr
0sec Until Start
0min Until Stop
3 SYSTEM STATUS
Engine Countdown Tmr
For AC Power Outage
0min Until Start
4 SYSTEM STATUS
Engine Hrs: 5.3
# Of Starts: 8
Mon02/17/03 17:53:26
5 SYSTEM STATUS
Firmware Ver SV 1.1
Commissioned Date:
11/15/02
6 SYSTEM STATUS
Extended Voltage
BAT 1 27.10 0.00A
BAT 2 27.05 0.00A
# 1 EVENT LOG
System in Off
Mode Occurred
02/16/03 13:15:15
# 1 EVENT DETAILS
System in Off
Mode Occurred
02/16/03 13:15:15
# 1 EVENT DETAILS
Pressure: 83.2psi
System Auto:Yes
Engine Running:No
# 1 EVENT DETAILS
Charger #1 OK:Yes
Charger #2 OK:Yes
Battery #1 OK:Yes
# 1 EVENT DETAILS
Battery #2 OK:Yes
AC Power Avail:Yes
Low Fuel Level:No
# 2 EVENT LOG
Engine Failed To
Start Alarm Occurred
02/16/03 07:32:15
# 3 EVENT LOG
AC Power Failure
Alarm Cleared
02/16/03 07:09:48
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File Name: Doc#586p.docx
SYSTEM LOGS
1) Event Log
2) Pressure Log
PRESSURE LOG
02/16/03 17:52:45
112 psi
Skip Rate:[EACH ]
PRESSURE LOG
02/16/03 17:52:30
112 psi
Skip Rate:[EACH ]
PRESSURE LOG
02/16/03 17:52:15
113 psi
Skip Rate:[EACH ]
Page 11 of 34
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1 CONFIG
1) SYSTEM SETPOINTS
2) USER PREFERENCES
3) TECH SCREENS
2 CONFIG
1) ANALOG SIGNALS
2) AUXILLIARY ALARMS
Continued on next
page.
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