Drivecon D2L, Руководство по обслуживанию

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Service Manual
rev 5.0 with software Ind1V022
2.3.5 Cable length
The maximum motor cable lengths in the preceding table are based on 150% of inverter rated current
(=current during acceleration) and a 2.5 % voltage drop in the cable. For longer cables, the required conductor
cross sectional area A (mm2) is given by formula
U p
I l
A F
×
× ×
× =
5 . 1
43 . 2
where l is the cable length (m)
I
F
is the motor current (A) at shaft power P
F
p is the allowed voltage drop in %
U is the nominal motor voltage
2.3.6 Du/dt filters
If D2L is not mounted on the crane, there has to be du/dt filter at motor supply. Also if total motor cable
length ( sum of motor cables ) is over 100m with D2L002 – D2L005 or over 200m with D2L007 – D2L055,
there has to be du/dt filter at motor supply.
D2L Platthaus du/dt filter Length (mm) Width (mm) Height (mm) Weight (kg) ID
002 – 003 ULC-910-920 100 110 180 1.2 52306553
004 – 005 ULC-914-931 125 110 200 3 52306554
007 – 018 ULC-918-951 155 125 225 7 52306555
022 – 045 ULC-923-927 190 135 260 12 52306556
055 ULC-942-1044 240 175 310 22 52306557
Du/dt filter should be as near D2L as possible
Note! All control cables must be placed as far from the motor and braking resistor cables as
possible.
2.4 Signal cabling
2.4.1 Shielded signal cable
It's recommended to use twisted pair and braided shielded signal cables. Foil type shield is not sufficient
enough in crane applications because of poor mechanical durability. Cable insulation material effects to cable
capacitance. Recommended cable capacitance between signal-signal and signal-ground is equal or less than
100pF/m (31pF/ft).
It is not recommended to use shielded flat cable, because its capacitance is extremely high and this may
cause high frequency interference.
2.4.2 Reference signals
Shielded round cables must be used for analog reference signals. The shield is to be grounded only at one
end of the cable.
2.4.3 Sensor bearing
The cable for the sensor bearings must be shielded round cable and grounded 360° at both ends.
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Drivecon Inc. reserves the right to alter or amend the above information without notice.