Emerson FloBoss 107 Instruction Manual page 53

Line
1 System Power Input
Base Unit including
2
CPU and Backplane Isolated
Expansion Rack
3
Inputs/Outputs
4
5
COM Modules
6
7 MVS Module
8 MVS Transmitters
9
10
11
12
13 Total FloBoss and Field Side Power Requirements in Watts (Line 12 + Line 13)
14
Entered Values =
Calculated Values =
Calculated Power (mW) = Quantity * (V dc * mA) * Duty Cycle
Note: Base Unit = CPU, backplane, on-board communications, LEDs, and RTD input
Amps = Total Power divided by Input Voltage (Line 14)
Issued Feb-07
Table 3-2. Estimated Power Consumption
Nominal
12 or 24 Volts dc
Quantity
Non-Isolated 0 or 1
0 or 1
−
CPU I/O Assembly 0 or 1
I/O Modules 0 to 6
RS-232 0 or 1
RS-485 0 or 1
MVS 0 or 1
0, 1, 2,
Remote MVS
3, or 4
DVS 0 or 1
Total Field Side Power Consumption from Table 3-3 (Watts)
Total System Current draw on Power Source
Power Connections
FloBoss 107 Instruction Manual
Input Nominal
Voltage Current
(Volts dc) (mA)
12
12
− −
12
12
12
12
12
12
12
mW (Totals of Lines 2 through 9)
FloBoss Total in Watts (Line 10 ÷ 1000)
Calc
Duty
Power
Cycle
(mW)
30 100%
360 or 540
45 100%
0 100%
3 100%
15 100%
3 100%
3 100%
10 100%
15 100%
1 100%
3-5