R&M Materials Handling VARIABLE SPEED CONTROLS ControlMaster Select Service Manual - Manual (Page 14)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
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R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
3.2.6.2 005 – 022
Du/dt filter at motor supply is needed if
- Motors are not made for inverter use
- Inverter is not mounted on the crane
- Number of motors is greater than 4
- Total motor cable length is over 200m (660ft)
Power class 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 ULC-923-927 190 135 260 12 52306556
3.3 EMC compatible grounding
3.3.1 Construction connections
All metal construction parts of the cubicle must be electrically connected to each other using largest
possible surface area. Paint to paint connection must not be used.
3.3.2 Cable connections
Control cables and power cables should be separated and routed separately for eliminating noise
coupling. The distance between braking resistor cables and the other cables should be kept as large as
possible. The distance between the resistor cables should be kept as short as possible to prevent the
antenna behavior. Cable lengths should be kept as short as possible to minimize coupling capacitances
and inductances.
#
Du/dt filter should be installed as close as possible to inverter.
#
All control cables must be placed as far as possible from the motor and braking resistor cables.
#
Please take care of the necessary cooling/heating to ensure that the ambient temperature of
inverter is within –10
°C to +50 °C if it is installed in a harsh environment.
!
If EMC / Noise problems occur during your installation, please follow the EMC plan or
contact the manufacturer.