20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: (860) 585-1254 Fax: (860) 584-1973 http://www.amci.com
23
TASK 1
P
HYSICAL
I
NSTALLATION
1.1 Installation Guidelines
1.1.1 Electrostatic Discharge Prevention
Electrostatic discharge can damage the NR60E2 if the discharge is into the power or ethernet connectors.
Follow these guidelines when handling the unit.
1) Touch a grounded object to discharge static potential before handling the unit.
2) Work in a static-safe environment whenever possible.
3) Do not touch the pins of the network connectors or power connector.
4) Do not disassemble the unit
1.1.2 Suitable Environment
The NR60E2 has an IP67 environmental rating and can be installed in most industrial environments, includ-
ing area subject to washdown spray and temporary immersion.
The IP67 rating is contingent on the proper installation of the power and ethernet mating con-
nectors as well as the threaded hole plug. The NR60E2 should not be operated in an industrial
environment without these items installed.
1.1.3 Shaft Loading
A flexible coupler should be used when connecting an NR60E2 to a drive shaft, because any mismatch in
shaft alignment will result in large radial or axial loading on the shaft of the encoder. Limit shaft loading to
the following values. These values statistically yield an L10 life of 2X10
9
revolutions. (Statistically, only
10% of the bearings will have failed after 2X10
9
revolutions.) Shaft loading has an exponential effect on
bearing life. The effect is actually cubic. Cutting a shaft load in half will result in an eight fold increase in
bearing life.
Table T1.1 NR60E2 Maximum Shaft Loading Specifications
1.1.4 A Note on Cable Direction
All of the dimensional drawings in the
section (1.3), show the direction that the cable exits
when using right angle connectors. Use this information to properly route cables when designing the
NR60E2 mounting.
1.2 Availability of CAD Drawings
CAD drawing for all NR60E2 devices are available on the AMCI website.
This section is intended for the engineer or technician responsible for installing
the NR60E2 networked resolver encoder. Information in this chapter includes
installation guidelines, information about online CAD files, and mechanical draw-
ings.
Radial Load
Axial Load
40 lbs. (178 N)
20 lbs. (88 N)
Содержание NR60E2
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