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USB Quad Quad Encoder USB Interface
-- SSI and Quadrature Versions Available
USB Dual Dual Encoder USB Interface
-- SSI and Quadrature Versions Available
MSHA MSHA Certified Encoders for Mines
etc
Large Large
hollow shaft encoders
Quad Encoder USB Interface -- SSI and Quadrature Versions Available
The Encoder Converter translates
encoder data to industry standard USB 2.0 format that can be
read by a computer. The module’s four available channels
are factory configured for SSI absolute encoders and/or quadrature
incremental encoders, in any combination totaling four encoders.
The Encoder Converter can be programmed through the USB interface
for number of bits with absolute encoders.
For incremental encoders, count mode (Pulse/Dir, X1, X2, X4), set count value, and preset/reset on index are all programmable through the USB input.
SSI and incremental encoder counter register length are programmable, up to 32 bits. T
his module is ideal for system setup and debugging, data acquisition and PC based control applications.
Module includes one 3-meter USB
Dual Encoder USB Interface -- SSI and Quadrature Versions Available
The Encoder USB Interface translates
encoder position to industry standard USB 2.0 format that can
be read by a computer. Each module can handle signals from two
encoders. Modules are available for SSI absolute encoders, as
well as quadrature incremental encoders.
The module can be programmed through the USB interface for number
of bits, clock speed and position
offset for absolute encoders. For incremental encoders, count
mode (X1, X2, X4), reset, preset, and preset/reset on index are
programmable through the USB input.
The Encoder USB Interface is
ideal for system setup and debugging, data acquisition and PC
based control
applications.
A length of DIN rail is supplied
with each module. The module simply snaps directly to the DIN
rail and is
ready to use.
Absolute Encoder
Input Format: Serial Synchronous Interface (SSI)
Clock/Data Signal Levels: Differential TTL (RS-422/485)
Clock Speed: 200 kHz to 1.25 MHz (programmable)
# of bits: 8 to 26 (programmable)
Incremental Encoder
Input Format: A/B Quad with Index
Signal Levels: 5V, 12-15V, 24V (select in model number)
Signal Input Current: 10 mA nom.
Input Frequency Response: 1.0 MHz Max
ELECTRICAL SPECIFICATIONS (Encoder)
MSHA Certified Encoders for Mines etc
Mining safety has been in the news recently along with references to the Mine Safety and Health Administration (MSHA). This organization was founded 25 years ago under the US Department of labor and performs routine mine inspections to make sure they are in compliance with safety standards.
In addition, they provide guidance to mine operators about best practices and provide technical support and certifications that ensure equipment will operate safely in mining environments.
MSHA's efforts have contributed to reducing the incidence of annual mine fatalities by a factor of five since they have been in existence. At BEI we are happy to note that our H38 encoder has passed the rigorous testing requirements of the MSHA.
To our knowledge, the H38 is the only MSHA certified optical encoder in the world that is rated for use in those difficult environments. Should you have need of rotary feedback in mining or other similar hazardous areas, it's good to know you can count on BEI products to help get you there safely.
Picture above is a hollow shaft encoders. The HS35 is BEI's most popular and well-known version, however for those really big jobs you'll want to consider the HS45 instead.
This large-bore hollow shaft encoder can accommodate shafts up to 1.750" in diameter. It also has all the same features found in our smaller hollow shaft encoders such as dual preloaded bearings for stability and high output line drivers for the data channels.
BEI also included the option for dual, redundant, electrically isolated outputs. Now you can send two sets of data signals to two different controllers simultaneously. Alternatively, you can use the second output as a backup if you anticipate that your application may be hazardous to electronics.
And that's not all. BEI had this unit certified under the European ATEX initiative with an intrinsically safe rating for use in Hazardous Environments. This is a lot of encoder for those really tough jobs. PDF
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