Installation guide

Setup & Installation 9
3.3 - Installation
It is important to select a mounting location for you con-
troller that will meet the environmental specifications
listed in Section 5.2. Avoid locations that expose the unit
to extremes of temperature, humidity, dirt/dust, or vibra-
tion.
Also, it is best to avoid areas with high "electrical noise."
This will help to prevent misoperation due to electromag-
netic interference. Please refer to Section 3.4.1 for gen-
eral guidelines on selecting a location for your controller
where it will be less susceptible to EMI/RFI problems.
When mounting the unit near other apparatus, such as
inside an electrical cabinet or enclosure, please leave at
least 2 inches of space on all sides for proper cooling.
Mounting brackets are supplied to attach the controller to
a vertical surface. The MX2000-8 can also be mounted in
a standard 19 inch rack configuration by removing the
mounting brackets and rotating them 180E. Please refer
to section 5.12, 5.13, and 5.14 for overall dimensions and
mounting hole locations for the MX2000-2, -2A, -6, -6A,
and -8 respectively.
3.4 - WIRING THE CONTROLLER
FOR OPERATION
Section 5 Specifications and Equivalent Circuits shows
how to wire up the individual connectors, depicts equiva-
lent circuits for each connector, describes connector la-
bels, defines connector signal characteristics, defines AC
electrical ratings of the System, and defines mechanical
and environmental specifications. Be sure to observe the
listed electrical ratings of the ac input and the various I/O
circuits; this will ensure proper, reliable operation of your
controller.
3.4.1 – General Wiring Guidelines
SLO-SYN 2000 controls and drives use modern solid-
state digital electronics to provide the features needed for
advanced motion control applications. Some user equip-
ment may produce electromagnetic interference (EMI, or
electrical noise) that can cause inappropriate operation of
the digital logic used in the control, drive, or other com-
puter-type equipment in the user’s system.
In general, any equipment that causes arcs or sparks or
that switches voltage or current at high frequencies can
cause interference. In addition, ac utility lines are often
polluted with electrical noise from sources outside a
user’s control (such as equipment in the factory next
door). Some of the more common causes of electrical
interference are:
Ÿ power from the utility ac line
Ÿ relays, contactors and solenoids
Ÿ light dimmers
Ÿ arc welders
Ÿ motors and motor starters
Ÿ induction heaters
Ÿ radio controls or transmitters
Ÿ switch-mode power supplies
Ÿ computer-based equipment
Ÿ high frequency lighting equipment
Ÿ dc servo and stepper motors and drives
The following wiring practices should be used to
reduce noise interference.
1) Solid grounding of the system is essential. Be sure
that there is a solid connection to the ac system earth
ground. Bond the drive case to the system enclosure.
Use a single-point grounding system for all related
components of a system (a “hub and spokes” arrange-
ment). Keep the ground connections short and direct.
2) Keep signal and power wiring well separated. If
possible, use separate conduit or ducts for each. If the
wires must cross, they should do so at right angles to
minimize coupling.
Note: Power wiring includes ac wiring, motor wires,
etc. Signal wiring is inputs and outputs (I/O), encoder
wiring, serial communications (RS232 lines), etc.
3) Use shielded, twisted-pair cables for the drive to
motor wiring. BE SURE TO GROUND THE
SHIELD AT THE DRIVE END.
4) Suppress all relays to prevent noise generation.
Typical suppressors are capacitors or MOV‘s. (See
manufacturer’s literature for complete information).
Whenever possible, use solid-state relays instead of
mechanical contact types to minimize noise genera-
tion.
In some extreme cases of interference, it may be nec-
essary to add external filtering to the ac line(s)
feeding affected equipment, or to use isolation
transformers to supply their ac power.
NOTE: Superior Electric makes a wide range of ac
power line conditioners that can help solve electrical
interference problems. Contact 1-800-SUP-ELEC
(1-800-787-3532) for further assistance.