Brooks Firetracker FT128 CIE - Supervised; Input 0-4 in Expansion Board 4583; Not Supervised; 3361 Unit Inputs In0; Z & In1

Technical / Programming Manual
FT128 Rev 2.2
72
7.1.2 Supervised
Each supervised input can be in one of the four different states shown in Table 11 below
Depending on the selected logic, Normally Open (high resistance) or Normally Closed
(low resistance), the four conditions in the table are valid.
Table 11 Control Unit Inputs I0 & 4583 Inputs 0-4
Line resistance R
Normally Open
(high resistance)
Normally Closed
(low resistance)
R > 6K8
Fault, Open circuit (cut-off)
Fault, Open circuit (cut-off)
6K8 > R > 2KΩ (nom. 3K3Ω)
Not activated
Activated
2K > R > 70 (nom. 680)
Activated
Not activated
R < 70
Short-circuit
Short-circuit
Input line fault
If open circuit (cut-off) or short-circuit is detected on a supervised input, a fault will
be generated in FT128 and the following fault
message will be displayed:
FAULT: Programmable input
7.2 Input 0-4 in Expansion Board 4583
Connections, see drawing F731.
7.2.1 Not supervised
Normally open (R > 20K) or Normally Closed (R < 500 ohm)
Activation time: > 10 sec.
7.2.1 Supervised
Each supervised input can be in one of the four different states shown in Table 11 above
Depending on the selected logic, Normally Open (high resistance) or Normally closed
(low resistance), the four conditions in Table 11 are valid.
Input line fault
If open circuit (cut-off) or short-circuit is detected on a supervised input, a fault will
be generated in FT128 and the following fault
message will be displayed:
FAULT: Programmable input x exp. board x
7.3 3361 Unit Inputs In0 / Z & In1
Connections, see drawing F735.
7.3.1 Input In0
Input 0 can be used as a general input (In0) – same as the CIE inputs I0 or used as a Zone
Line Input (Z) requiring an End-Of-Line capacitor (470 nF).
7.3.2 Input In1
Input 1 is an isolated optocoupler input requiring a NO / NC contact and external 24VDC (8
mA).