Honeywell 04230-A-1001 - Page 26

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MAN0530 Issue 15 - 07/17 Searchline Excel
2104M0506
3.4.2 Power Consumption of Excel Components (Typical)
Component Watts W / V = I Allowable Loop Resistance
(6Vdrop/I)Ω
Receiver 8.0 444 mA 13.50Ω
Transmitter Short Range
Non-Turbo mode
3.5 194 mA 30.93Ω
Transmitter Short Range
Turbo mode
5.0 278 mA 21.58Ω
Transmitter Mid Range
Non-Turbo mode
10.0 555 mA 10.81Ω
Transmitter Mid Range
Turbo mode
12.0 666 mA 9.00Ω
Transmitter Long Range
Non-Turbo mode
10.0 555 mA 10.81Ω
Transmitter Long Range
Turbo mode
12.0 666 mA 9.00Ω
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 Maximum cable length*
Cable Ω/km Ω/mi Meters Feet
0.5 mm2 (20 AWG) 36.8 59.2 183 600
1.0 mm2 (17 AWG) 19.5 31.4 346 1135
1.5 mm2 (16 AWG) 12.7 20.4 531 1742
2.0 mm2 (14 AWG) 10.1 16.3 668 2191
2.5 mm2 (13 AWG) 8.0 12.9 844 2769
AWG is nearest equivalent *example is for a nominal 24 VDC supply
Note:Thegures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.
3. INSTALLATION AND OPERATION