Parker PDHX-E Series, User Manual

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The recommended components are produced by Parker Chomerics and are suitable for use
with cable having an outside diameter up to 10mm. The specification is as follows:
Chomerics part number H8FE-1115-NC
Outside diameter 17.5mm
Inside diameter 10.7mm
Length 28.5mm
Impedance at 25MHz 80
Impedance at 100MHz 120
Curie temperature 130°C (the device should not be operated near this temperature)
Handling and installing ferrite absorbers
Take care when handling the absorbers - they can shatter if dropped on a hard surface. For
this reason the preferred method of installation is to use a short length of 19mm diameter
heat-shrink sleeving. This gives a degree of physical protection while the cable is being
installed. The sleeving should have a shrink ratio of at least 2.5:1. Cable ties may be used
as an alternative, however they give no physical protection to the absorber.
Figure 3-2. Motor wiring installation
Motor Selection
To maintain EMC compliance, the wiring guidelines given in the previous section must be
followed. This should be kept in mind when the motor is selected. In particular, if the motor
is fitted with flying leads or screened cable with a foil screen, this must be replaced with
braided-screen cable as described.
If motors other than those listed are to be used please contact Digiplan.
Usually optimum performance will be obtained when the current rating of the motor is
between 1 and 1.5 times the drive rating (refer to specification). For maximum high speed
torque a motor rating of 7.5A peak should be used (PDHX15-E). The drives can be derated
to accommodate motors with lower current ratings however, the high speed torque will be
reduced.
Do not use a drive setting which gives an output current greater than the motor rating.
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