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MDP-1.A/T Control Unit User Manual issue 4W32en
©gazex’2016 v1609
Page 6
/ 16
Table 3.1. Functions performed on outputs
:
MODULE
STATUS
[Terminal no.]
RELAY OUTPUTS
12V VOLT. OUTPUTS
FAULT
A1
A2
A3
Pair
COM-NO
[18] [16]
Pair
COM- NC
[18] [17
]
Pair
COM-NO
[27] [26]
Pair
COM- NC
[27] [25]
Pair
COM-NO
[24] [23
]
Pair
COM- NC
[24] [22]
Pair
COM-NO
[21] [20
]
Pair
COM- NC
[21] [19]
A1
[09] [10]
A2
[08] [10]
NORMAL
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
no voltage
no voltage
A1
OPEN
CLOSED
CLOSED
OPEN
OPEN
CLOSED
OPEN
CLOSED
12V=
no voltage
only A2
OPEN
CLOSED
OPEN
CLOSED
CLOSED
OPEN
OPEN
CLOSED
no voltage
12V=
A1+A2
OPEN
CLOSED
CLOSED
OPEN
CLOSED
OPEN
OPEN
CLOSED
12V=
12V=
only A3
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
CLOSED
OPEN
no voltage
no voltage
A1+A2+A3
OPEN
CLOSED
CLOSED
OPEN
CLOSED
OPEN
CLOSED
OPEN
12V=
12V=
FAULT
of MDP pow. sup.
CLOSED
OPEN
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
no voltage
no voltage
FAULT
DEX
CLOSED
OPEN
X
X
X.
X
X.
X
X
X
x – means the last correct state from before the fault;
NORMAL state
only the green light is on;
possible information displayed on the LED screen [
CAL
. ] - i.e. exceeded recommended detector
calibration period;
A1 – (ALARM A1)
[ALARM A1] output light is on;
pulsating tone of the inner siren is on;
A2 – (ALARM A2)
red [ALARM A1] and [ALARM A2] alarm outputs lights are on;
only the red [ALARM A2] output light is on (window detector);
pulsating tone of the inner siren is on;
A3 – (ALARM A3)
the detector indicates that the A3 concentration threshold has been exceeded,
red [ALARM A1], [ALARM A2] and [ALARM A3] alarm output lights are on;
only the red [ALARM A3] output light is on (window detector or shortage function is active)
pulsating tone of the inner siren is on;
FAULT of the MDP power supply
– no power supply or damaged internal systems of the module, all
lights are off;
DEX FAULT –
appropriate fault code on the LED screen, yellow FAULT light is on; active relay output
[FAULT];
4. MDP INSTALLATION
WITHIN THE SYSTEM
The MDP installation can be started after a period of time suitable for the evening out of temperatures
of the MDP and the ambient air. Especially in winter, at negative temperatures during transport or
storage, wait approx. 20 minutes before removing the MDP from the foil packaging to prevent
condensation on the inner circuits of the device!
4.1
Mount the module in the switchboard box, on a 35mm rail, outside an explosive area, in a place
free from strong electromagnetic interference, vibrations, strokes.
Caution!!!
The setup can be carried out only when the power supply is off!!!