FireClass FC503 Installation Manual page 71

Table 66: Current distribution of FC503 control panel
FC503 control panel
Switching Power Supply BAQ140T24 (Imax = 5.5 A)
12 Ah Battery
17 Ah Battery
38 Ah Battery
Notes:
(*):I is the sum of currents absorbed on Loops 1, 2, 3
Total_Loops_1_2_3
(**):I is the sum of currents absorbed on Loops 4, 5, 6
Total_Loops_4_5_6
(***):I is the sum of the currents drawn by the terminals SC1, SC2, 24A, 24R, 24V-RS485.
Total_Outputs
(****): If the FC500IP module is not be used then the relative amount of current (100 mA) can be drawn from the
SC1, SC2, 24A, 24R, 24V-RS485 terminals.
Table 67: Max withdrawable current for FC503 and FC506 control panels
Terminals
SC1
SC2
24A
24R
24V-RS485
I
Battery_Charge_80%_24H
I
= 5500 - 400 = 5100 mA
For_panel
I
Main_Board_Electronics
I
(*) = 800 mA @40V (1300 mA @27V)
Total_Loops_1_2_3
I
(***) = 3300 mA
Total_Outputs
I
= 100 mA (****)
FC500IP
I
= 150 mA
Residual
I
Battery_Charge_80%_24H
I
Battery_Charge_80%_24H
I
= 5500 - 600 = 4900 mA
For_panel
I
Main_Board_Electronics
I
(*) = 800 mA @40V (1300 mA @27V)
Total_Loops_1_2_3
I
(***) = 3100 mA
Total_Outputs
I
= 100 mA (****)
FC500IP
I
= 150 mA
Residual
I
Battery_Charge_80%_24H
I
= 5500 - 1500 = 4000 mA
For_panel
I
Main_Board_Electronics
I
(*) = 800 mA @40V (1300 mA @27V)
Total_Loops_1_2_3
I
(***) = 2200 mA
Total_Outputs
I
= 100 mA (****)
FC500IP
I
= 150 mA
Residual
Max Current
0.5 A
0.5 A
1 A
1 A
1 A
= (12*0.8)/24 = 400 mA
Panel Load Distribution
= 250 mA
= (12*0.8)/24 = 400 mA
= (17*0.8)/24 = 566.66 mA -> 600 mA
Panel Load Distribution
= 250 mA
= (38*0.8)/24 = 1266.66 mA -> 1500 mA
Panel Load Distribution
= 250 mA
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