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ENERAL
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UIDELINES
Networked Indexer/Driver User Manual
ADVANCED MICRO CONTROLS INC.
90
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 R8.2 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 R8.2 Conductor Routing Guidelines
Installing an AMCI Networked Driver
The Networked Driver 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 typically a small enclosure that only houses the Networked Driver.
A minimum of two conduits are required for the enclosure that houses a Networked Driver. One conduit
is for the DC I/O and ethernet cable, and the other is for AC power and the motor connections. Three
conduits may be required if the code in your area does not allow you to run the motor connections with
AC power or if the noise generated on the motor connections is injected into your AC lines.
If 230Vac is the only line voltage available in a system that is using the SD17060E-K Drivers, 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-K Networked Driver. This will prevent any noise
placed on the AC line by the SD17060E-K from leaving the enclosure.
For the SD31045E-K Drivers, if 115Vac is the only line voltage available in the system and you require
the 310Vdc motor bus, a step up transformer that is rated for a minimum of 800VA must be installed.
Consider installing this transformer in the enclosure with the SD31045E-K. This will prevent any noise
placed on the AC line by the SD31045E-K from leaving the enclosure.
Like all motors, stepper motors are noise generators and must be properly grounded when installed.
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
motor connector of the Networked Driver 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 category
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 conductors
of less than 20A, 12" from category 1 conductors of greater than 20A and 24" from any cate-
gory 1 conductor of any amperage of the circuit is greater than 100 kVA.
Route at least 5 feet 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.
