Parker Compumotor 6200, Installation Manual

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3 2
6200 Installation Guide
cable (this allows the braid to continue to the cable
connector), be careful not to damage the braid. Snap the
P-clip over the exposed braid, and adjust for a tight fit.
Secure the clip to the designated ground with a machine
screw and lock washer. The use of brass or other inert
conductive metal P-clip is recommended. Cover any
exposed bare metal with petroleum jelly to resist
corrosion.
P-Clip
Remove outer jacket only
do not cut braid
Figure 2. P-Clip Installation
Installation
External Enclosure
I n t r o d u c t i o n
The measures described in this section are primarily for the
purpose of controlling conducted emissions. To control
radiated emissions, all drive and control systems must be
installed in a steel equipment cabinet which will give
adequate screening against radiated emissions. This
external enclosure is also required for safety reasons. There
must be no user access while the equipment is operating.
This is usually achieved by fitting an isolator switch to the
door assembly.
To achieve adequate screening of radiated emissions, all
panels of the enclosure must be bonded to a central earth
point. The enclosure may also contain other equipment and
the EMC requirements of these must be considered during
installation. Always ensure that drives and controllers are
mounted in such a way that there is adequate ventilation.
Preparing the 6200: The 6200 must be mounted to a
conductive panel. Before mounting the 6200, remove the
paint from the rear face of the mounting hole that will be
closest to the input filter location as shown in Figure 3
below, and if necessary from the corresponding area on the
rear panel of the enclosure. This is to guarantee a good
high-frequency connection between the drive case and the
cabinet. After mounting the unit use petroleum jelly on
the exposed metal to minimize the risk of future
corrosion.
Filtering the AC Supply
I n t r o d u c t i o n
These recommendations are based on the use of proprietary
screen filter units which are readily available. However, the
full EMC test includes a simulated lightning strike which
will damage the filter unless adequate surge suppression
devices are fitted. These are not normally incorporated into
commercial filters since the lightning strike test can be
destructive. This test is normally carried out on the overall
system and not on individual components; therefore, the
surge protection should be provided at the system
boundary.
The 6200 incorporates a switch-mode power supply
operating directly from the AC input. The substantial
filtering effect of a mains isolation transformer is therefore
not available, and additional external filtering is required.
The solution offered uses a single filter to control both
differential and common-mode emissions. The
manufacturer’s part numbers for suitable filters are:
Corcom 3EB1
Corcom World Headquarters
Phone: 847-680-7400
Fax: 847-680-8169 Schaffner FN610-3/06
Schaffner EMC Inc.
Phone: 201-379-7778
Fax: 201-379-1151
Mount the filter within 2 inches (50mm) of the 6200 as
shown in Figure 3 below. Ensure that there is no paint on
the mounting panel under the filter mounting lugs—it is
vital that there is good large-area contact between the filter
and the panel.
Connect the incoming AC supply cable to the push-on
terminals on the filter, with the earth lead connected to a
local earth stud, bus bar or metal back-plane. Route the
supply cable so that it runs close to the walls of the
enclosure. Connect the earth terminal on the filter case to
the earth stud.
Fit a ferrite absorber over the cable before wiring the filter
output terminals to the AC input on the drive. Locate the
absorber as close as possible to the drive using heat-shrink
sleeving (see Figure 1 above). Take the 6200 earth
connection from the same stud that retains the filter case
earth, as shown in Figure 3 below.
Control Signal Connections
High-quality braided screen cable should be used for
control connections. In the case of differential outputs
(such as step & direction), it is preferable to use a cable
with twisted pairs to minimize magnetic coupling. A
connection is made to the cable screen at the controller end
by exposing a short length of the braided screen and
anchoring this to earth using a P-clip (see Figure 2). Fit a
ferrite absorber close to the I/O connector and run the cable
down to the mounting panel as shown in Figure 3.
The level at which the I/O operates means that the signals
are unlikely to meet EMC immunity requirements if taken
outside the enclosure without proper screening.
50-Pin Ribbon Cable: It is recommended when using the
50-Pin Ribbon Cable I/O found on the 6200 that a
terminal break-out box such as the VM50 be used (see
Figure 3). Mount the VM50 close to the 6200, keeping
the ribbon cable as short as possible. Bundle any excess
ribbon cable and secure close to a panel wall. Individual
I/O points will require the use of individually shielded
cable runs, with braids bonded to the panel (close to
VM50) with a P-clip.
Communications: In applications that require serial
communications with the 6200, take special care to use
proper wiring practices. Use good quality braided screen
cable for the communication cabling. No connection is
made to the cable screen at the 6200 itself. Fit a ferrite
absorber close to the communications connector and run the
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