Display messages:
Display
System status
messages
Initialisation
-
(max. duration
3 seconds)
0
Awaiting order
1
HS safety (fan on)
8
LS safety (fan on)
Firefighter's
2
shutdown
3
Safety switch
HS fan motor
4
insulation fault
LS fan motor
9
insulation fault
Reversal of box
5
supply phases
Loss of box
6
supply voltage
F
Memory fault
Fan motor control
The low- or high-speed safety order controls switches with a rating 1.5 times the maximum value of the current absorbed
by the fan motor. This safety order is saved in a non-volatile memory to preserve it in case of a mains outage and to ensure
automatic restarting when mains power is restored.
6. LIST OF REMOTE EQUIPMENT
6.1 - FIREFIGHTER'S SHUTDOWN REMOTE CONTROL DEVICE
- Key button unit no. 455, 2 fixed positions with key withdrawal on left.
- Access level 2 priority control, constant current. Shuts down the fan regardless of the order from the fire safety control panel.
RESET device
- Key button unit no. 455, 2 fixed positions with return from right to left, key withdrawal on left.
- Access level 1 control, no constant current. Allows the system to be returned to the standby position.
NT 1920 C - 12/2019
Models affected
2 V
With
All
option
B
DA
X
X
X
X
X
X
X
X
X
X
X
X
Box status
Standby
Safety
Fault
position
position
X
X
X
X
X
X
X
X
X
X
Actions required
Wait
3 seconds
NA
NA
NA
To restart the fan, reset
the firefighter's shutdown
to position 0.
The proximity switch is
open. Close the switch to
clear this fault
Check the insulation on
the motor's HS windings.
This value must be over
500 KΩ greater than
the earth and LS for a
Dahlander motor.
Check the insulation on
the motor's LS windings.
This value must be over
500 KΩ greater than the
earth.
Check the order of the
wired phases at the box
input
Check for the wired
phases at the box input.
Check the mains voltage
The program on the PCB
has been damaged.
Contact France Air
12