Functions; Operating Functions; Calibration Function; Monitoring Functions - Grundfos Fire Control FS1 VdS Installations- Und Bedienungsanleitung

5. Functions

5.1 Operating functions

Automatic operation
Normally, the fire pump set is in automatic mode. In this mode,
only the green indicator light "POWER SUPPLY" is on. All other
alarm and status indicator lights should be off.
As soon as the sprinklers are activated and water is consumed,
the pressure in the discharge pipe is reduced. If the pressure falls
below the cut-in pressure set on the pressure switch, the pump
will start automatically. When the pump is running, the red
indicator light "PUMP RUNNING" will be on. "Press1" or "Press2"
for pressure switch 1 or 2 is displayed as the reason for the
startup, and digital outputs DO3 or DO4 and DO8 will have been
activated. During startup, the number of startup attempts and the
starting unit currently used (battery A or B) are also shown in the
display.
A start attempt lasts five to ten seconds. If the engine does not
start, another start attempt will be made after five to ten seconds.
The duration of start attempts and the time interval between two
start attempts are adjustable. See section
A maximum of six start attempts will be made. After every failed
start attempt, the controller changes over to the other battery set.
After six failed start attempts, the controller blocks the automatic
operation, and indicator light "FAILURE TO START" lights up in
the control panel. The message "Start failure" appears in the
display, and digital output DO1 for common fault is activated.
Press [R] to reestablish automatic operation. See also section
12. Operation.
It is only possible to stop the pump manually by means of
[Stop engine].
For safety reasons, a redundant pressure switch should always
be connected i addition to the primary pressure switch.
See also section 12.1 Automatic
Manual operation
The pump can also be started manually by pressing [Start
engine]. When this button is pressed, the pressure switch in the
discharge pipe is bypassed, and the starting cycle described in
section 12.1 Automatic operation
When the pump is running, the red indicator light "PUMP
RUNNING" will be on. "Manual" is displayed as the reason for the
startup, and digital output DO3 or DO4 will have been activated.
The pump is stopped with [Stop engine], and the controller
returns to automatic operation.
See also section 12.2 Manual operation.
Emergency start
The controller is equipped with an emergency start device in case
the pump does not start automatically. Indicator lights "Test,
emergency start 1" and "Test, emergency start 2" indicate
whether the pump can be started using the emergency start
device. The indicator lights are on in these cases:
• when the controller has been switched on for the first time.
• when the pump has been started automatically and
subsequently stopped by means of [Stop engine].
• after six failed start attempts.
The emergency start device can be tested by starting the pump
by means of [Test, emergency start 1] or [Test, emergency start 2]
and then switching it off using [Stop engine]. Indicator lights "Test,
emergency start 1" and "Test, emergency start 2" are not on in
this case. Indicator light "Test, emergency start 1" or "Test,
emergency start 2" indicates that the system is ready for a test of
the emergency start device. Start the engine manually by
pressing [Test, emergency start 1] or [Test, emergency start 2].
The respective light goes off when the engine is switched off.
In case of controller fault (indicator light "DIESEL CONTROLLER
FAULT" is on, or the display and the indicator lights are off), the
pump can be started manually with [Emergency start 1] or
[Emergency start 2] after breaking the glass.
See also section 12.3 Emergency
8.2 Settings.
operation.
is activated.
operation.
Stop function
When the pump is switched off by means of [Stop engine], the
controller interrupts the fuel supply via a valve.

Calibration function

During startup, the engine speed must be calibrated. This will
ensure that the correct speed is always shown in the display.
See also section 8.2.3 Calibration of engine
Indicator light test
It is possible to carry out an indicator light test. To test the
function of the indicator lights of the control panel, press
Cooling water heater
Some pump sets are equipped with a cooling water heater for the
engine. The control cabinet contains a 10 A automatic circuit
breaker and the required terminals for power supply to the
cooling water heater. The heater adjusts itself via an external
cooling water thermostat.

5.2 Monitoring functions

The most important fault readings can, via an output relay, be
forwarded to a building management system as a common status
indication. The following faults are combined to one common
alarm:
• Start failure (after 6 start attempts)
• Defective battery/charger
• Oil pressure too low
• Engine temperature too high
• Fuel tank filling level too low
• Closed fuel valve
• Generator defective
• External fault
• Circuit breaker of cooling water heater has tripped.
The engine is not switched off in case of faults.
See also section 8.3 Status and fault
Phase failure
The power supply is monitored for phase failure and undervoltage
via mains contactor K1 and mains monitor B6. If the voltage falls
below 200 V, the internal relay of mains monitor B6 trips, and the
mains contactor will be disconnected. Indicator light "Mains
failure" lights up, and indicator light "POWER SUPPLY" goes off.
The display shows the message "Mains failure", and digital output
DO6 is activated. When the fault no longer exists, the fault
indication will be reset automatically.
Battery voltage
Both battery sets (battery A and battery B) are monitored. If the
battery voltage falls under 25.2 V for more than 30 seconds, or no
battery is connected, the warning indication "Fault, battery 1" or
"Fault, battery 2" will appear in the display for the battery
concerned, and the appropriate yellow indicator light "BATTERY
A -> BATT./BATT. CHARGER FAILURE" or "BATTERY B ->
BATT./BATT. CHARGER FAILURE" will light up. Digital output
DO1 is also activated for a common fault. The fault must be reset
manually by pressing [R].
Before the battery voltage can be measured, the charging current
must be interrupted for at least 30 seconds. Flasher relay K13
interrupts the charging of battery A, and impulse relay K14 the
charging of battery B. The interruption is carried out automatically
by the controller and never at the same time.
speed.
.
indications.
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