GENERAL INSTALLATION GUIDELINES
ADVANCED MICRO CONTROLS INC.
3
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System Layout Considerations (continued)
Conduits to Enclosure
When designing the layout of you system be sure to include enough conduits to house the different categories
of cabling. To guard against coupling noise from one conductor to another, follow the spacing guidelines in
table 3.2 below. These spacing values should be followed for routing cables both inside and outside of an
enclosure. Of course, sometimes these guidelines cannot be followed, such as when the connection points on
a controller are spaced closer together than these guidelines recommend.
Table 3.2 Conductor Routing Guidelines
Installing a SD17060E
The SD17060E is designed to be mounted in an enclosure that is close to the motor. On small machines, this
may be the same enclosure that the rest of the control system in mounted in. On large machines, this is typi-
cally a small enclosure that only houses the SD17060E.
h
A minimum of three conduits are required for the SD17060E enclosure. One for the DC I/O and ether-
net cable, one for AC power, and one for the motor connections.
h
If 230Vac is the only line voltage available in the system, a step down transformer that is rated for a
minimum of 800VA must be installed. Consider installing this transformer in the enclosure with the
SD17060E. This will prevent any noise placed on the AC line by the SD17060E from leaving the
enclosure.
h
Like all motors, stepper motors are noise generators and must be properly grounded when installed.
h
Keep the motor wires as short as possible. Consider twisting the winding pairs together to minimize
radiated noise. Use shielded cable if you must extend the cable and tie the shield to earth ground at the
SD17060E motor connector only.
Category
Guidelines
1
These conductors can be routed in the same cable tray, raceway, or conduit as machine power
conductors of up to 600Vac. Power conductors cannot feed larger than 100HP devices.
2
`
If they must cross power feeds, they must do so at right angles.
`
Route in a raceway or conduit separate from all category 1 conductors and properly shield
where applicable.
`
Any metal wireway or conduit that houses the conductor must be bonded along its entire
length and bonded to the enclosure at its entry point.
`
If in a continuous metal wireway or conduit, route at least 3” from category 1 conductors of
less than 20A, 6” from category 1 conductors of greater than 20A and 12” from any cate-
gory 1 conductor of any amperage of the circuit is greater than 100 kVA.
`
If not in a continuous metal wireway or conduit, route at least 6” from category 1 conduc-
tors of less than 20A, 12” from category 1 conductors of greater than 20A and 24” from any
category 1 conductor of any amperage of the circuit is greater than 100 kVA.
`
Route at least 5 ft. away from high-voltage enclosures or sources of rf/microwave radiation.
3
Route these conductors external to all raceways in the enclosure or in a raceway separate from
all category 1 conductors. Use the same spacing rules given for category 2 conductors.
