Fire-Lite FCPS Series Field Charger/Power Supply - Manual (Page 40)

40 FCPS-24FS Series Instruction Manual — P/N 51883-L8:J1 8/30/13
Power Supply Requirements Calculating the System Current Draw
Table 6.3 contains three columns for calculating current draws. For each column, calculate the cur-
rent and enter the total (in amperes) in the bottom row. When finished, copy the totals from Calcu-
lation Column 2 and Calculation Column 3 to Table 6.4 on page 41.
Device Type
Calculate Column 1
Primary, Non-Fire Alarm Current
(amps)
Calculate Column 2
Primary, Fire Alarm Current
(amps)
Calculation Column 3
Secondary, Non-Fire Alarm
Current
(amps)
Qty X (current draw) = Total Qty X (current draw) = Total Qty X (current draw) = Total
Main Circuit
Board 1 X [ 0.091] = 1 X [ 0.145] = 1 X [ 0.065] =
Power
Supervision Relay [ ] X [ 0.025] = [ ] X [0.025 ] = [ ] X [ 0.025] =
NAC/Output #1 [ ] X [ ] =
NAC/Output #2 [ ] X [ ] =
NAC/Output #3 [ ] X [ ] =
NAC/Output #4 [ ] X [ ] =
Current Draw
from TB4
Terminals 9 & 10 [ ] = [ ] = [ ] =
Sum each
column for totals
Primary Non-Alarm = Primary Alarm = Secondary Alarm =
Table 6.3 System Current Draw Calculations