ComAp InteliLite AMF25, Global Manual

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InteliLite Global Guide
44
Table for HW versions 1.1 and lower.
0 - 22 mA
mA 0 1 2 3 4 5 6 7 8 9 10 11
Ω 100 131 164 200 238 280 325 374 427 485 550 621
mA 12 13 14 15 16 17 18 19 20 21 22
Ω 700 788 887 1000 1128 1276 1450 1654 1900 2200 2575
Table for HW versions 1.2 and higher.
0 - 22 mA
mA 0 1 2 3 4 5 6 7 8 9 10 11
Ω 100 110 120 130 141 154 168 182 198 216 235 256
mA 12 13 14 15 16 17 18 19 20 21 22
Ω 280 306 336 370 409 453 505 566 640 730 842
Note: This is a conversion of current from current sensor to appropriate resistance value. Use resistance
values in InteliConfig to create your specific curve. These values should be used in "Ohm" column.
4.4.10 CAN bus and RS485 wiring
CAN bus wiring
The wiring of the CAN bus should be provided in such a way that the following rules are observed:
The maximum length of the CAN bus depends on the communication speed. For a speed of 250 kbps, which
is used on the CAN1 bus (extension modules, ECU), the maximum length is 200 m.
The bus must be wired in linear form with termination resistors at both ends. No nodes are allowed except on
the controller terminals.
Shielded cable
1
has to be used, shielding has to be connected to the terminal T01 (Grounding).
External units can be connected on the CAN bus line in any order, but keeping line arrangement (no tails, no
star) is necessary.
The CAN bus has to be terminated by 120 Ohm resistors at both ends use a cable with following
parameters:
Cable type Shielded twisted pair
Impedance 120 Ω
Propagation velocity ≥ 75% (delay ≤ 4,4 ns/m)
Wire crosscut ≥ 0,25 mm
2
Attenuation (@1MHz) ≤ 2 dB/100 m
Note: Communication circuits shall be connected to communication circuits of Listed equipment.
1
Recommended data cables: BELDEN ( http://www.belden.com ) - for shorter distances: 3105A Paired - EIA
Industrial RS-485 PLTC/CM (1x2 conductors); for longer distances: 3106A Paired - EIA Industrial RS-485
PLTC/CM (1x2+1 conductors)