Installation
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ASD 535, Mounting and installation, T 140 333 d en
3.6.3
Control
The ASD 535 units connected to a FACP are controlled according to the detection zone mapping using the FACP states “Zone
ON/OFF” and “Reset”. Two possibilities are available:
•
Control via supply voltage (auxiliary relays in the ASD power supply line)
•
Control via the “Reset external” input.
3.6.3.1
Control via supply voltage by means of auxiliary relay
Depending on the location of the ASD supply, the auxiliary re-
lay may be placed in the FACP or directly in the ASD 535.
The auxiliary relay can be actuated in the following ways (see
A.
line plus or minus
B.
SW output of the FACP
C.
SW output or function of a control module
The function types listed above are determined by the FACP
technology in use. It is therefore essential to contact the
manufacturer and/or the supplier of the fire alarm unit before
implementing.
Notices
•
The EMC protective elements at the input of
the ASD electronics cause a brief current
peak (5 A / 1 ms). When using auxiliary relays
with a max. contact load of 1 A, this may lead
to the relay contact sticking. For this reason
auxiliary relays with a contact load of over
1 A
should
always
be used, e.g. PMR 81 semi-
Fig. 21 C)
).
•
The ASD supply path via the auxiliary relay
contact must be short-circuit-proof or con-
ducted via a fuse component (circuit-breaker
card).
•
When using a PMR 81 semiconductor, it may
be necessary to invert the actuation signal
(PMR has only a normally open contact func-
tion).
•
To guarantee comprehensive emergency
running properties, the wiring must in all
cases be implemented in such a way that if
there is an FACP computer failure the ASD
will continue to function (reset input not actu-
ated).
Fig. 21 Control via supply with relay
or
From line plus/minus, relay in the FACP
A)
B)
C)
B)
A)
From line plus/minus, relay in the ASD
From SW output of the FACP, relay in the FACP
From SW output of the FACP, relay in the ASD
From SW function of control module, supply from FACP or local
Supply
Supply
Supply
Supply
Supply
Control
module
Alarm
transmitter
Local
supply
Local
supply
Line
Line
Line
Line
Line
OC module
OC module
FACP
FACP
FACP
FACP
FACP
PMR 81
- or +
- or +
+ or -
+ or -
Line-specific
resistance or
alarm transmitter
Line-specific
resistance or
alarm transmitter
Line-specific
resistance or
alarm transmitter
Line-specific
resistance or
alarm transmitter
ASD 535
1
2
10
18
St
Al I
Al II
ASD 535
1
2
10
18
St
Al I
Al II
ASD 535
1
2
10
18
St
Al I
Al II
ASD 535
1
2
10
18
St
Al I
Al II
ASD 535
1
2
10
18
St
Al I
Al II
1
3
2
4
Summary of Contents for ASD 535
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