Water Mist WM-A1584 Installation, Operation And Maintenance Manual - page 6
Watermist Fire Technologies
Page 6
O
Normally open during fault free condition, closed when fault is detected. One terminal,
2.5mm
2
cable max.
Note 4:
Contacts are normally energised.
Note 5:
Th e volt-free SPCO relay has contacts which are rated to 1A @ 24v DC.
6. Adjustments and Indications
Indicator
Function
Colour
Comments
PROC
Processor Fault
Amber
Flashes whenever the processor fails to update
the external hardware watchdog and whenever a
memory error has been detected by the onboard
processor.
BATT
Battery Fault
Amber
Flashes whenever the battery input has a short
circuit, single battery connected, or battery
voltage rises above 29.5v DC.
L/BATT
Low Battery Fault
Amber
Flashes whenever standby power (battery) falls
below 19v DC.
CHARGE
Charger Fault
Amber
Flashes whenever battery is disconnected, battery
voltage is above intended charge voltage.
EARTH
Earth Fault
Amber
Flashes whenever a earth fault is detected.
5/8V
Regulated 5/8V Fault
Amber
Flashes whenever 5v DC regulator output is
above 9v DC and below 4v DC.
MAIN
Mains input fault
Amber
Flashes whenever the DC input from the switch-
mode unit falls below 28v DC or above 30v DC.
THERM
Thermistor Fault
Amber
Flashes whenever Thermistor input resistance
falls outside its resistance range (800 Ohms to
52kOhms)
PSU OK
PSU Healthy
Green
Illuminates whenever unit is not displaying any
detected faults. Turns off whenever charger is
checking the presence of the battery.
Table 1. Description of Fault Indicators and their functions on the WM-A1584
User Control
Designation/Location
Comments
EARTH CAP DISABLE
JP1
When link is removed the 10uF Earth Ca-
pacitor is disabled.
EARTH FAULT DISABLE
JP2
When link is removed Earth faults are
disabled.
TEST LAMPS PROC FAULT
RESET
SW1
When pressed all the amber fault LEDs il-
luminate except for PROC fault. Also clears
the Memory Checksum Fault Flag and
clears the PROC fault LED.
RESET PROC
SW2
Resets the on board processor
VSET
VR1
Manual adjustment for Battery Charge volt-
age.
Table 2. Description of the User Controls and their function on the WM-A1584