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MAN0530 Issue 15 - 07/17
2104M0506
3. INSTALLATION AND OPERATION
3.4.2 Power Consumption of Excel Components (Typical)
Component
Receiver
Transmitter Short Range
Non-Turbo mode
Transmitter Short Range
Turbo mode
Transmitter Mid Range
Non-Turbo mode
Transmitter Mid Range
Turbo mode
Transmitter Long Range
Non-Turbo mode
Transmitter Long Range
Turbo mode
Example
The following table shows the maximum cable distances for different cable sizes between the
controller and a typical device assuming a voltage drop of 3 V in each cable core.
Remember that a cable loop is two cores, so the calculated distance for one core is the loop
resistance halved. I.e. 13.5 Ω / 2 = 6.75 Ω per core.
Receiver calculation = 1000 x 6.75 Ω ∕ (Ω / km)
Typical cable resistance
Cable
0.5 mm2 (20 AWG)
1.0 mm2 (17 AWG)
1.5 mm2 (16 AWG)
2.0 mm2 (14 AWG)
2.5 mm2 (13 AWG)
AWG is nearest equivalent
Note: The figures given in the table above are typical ratings that may vary from cable to cable.
Always measure your own cable and device resistances and your power supplies to ensure
accuracy in your calculations.
Watts
W / V = I
8.0
444 mA
3.5
194 mA
5.0
278 mA
10.0
555 mA
12.0
666 mA
10.0
555 mA
12.0
666 mA
Ω / km
Ω / mi
36.8
59.2
19.5
31.4
12.7
20.4
10.1
16.3
8.0
12.9
Allowable Loop Resistance
Maximum cable length*
Meters
183
346
531
668
844
*example is for a nominal 24 VDC supply
26
Searchline Excel
(6 V drop / I) Ω
13.50 Ω
30.93 Ω
21.58 Ω
10.81 Ω
9.00 Ω
10.81 Ω
9.00 Ω
Feet
600
1135
1742
2191
2769
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