Selection Guide
Introduction
Welcome to the EPC Encoder Selection Guide. The process of
selecting an encoder for your motion system is not as simple and
straightforward as it might seem at first glance since there are
a large number of variables that must be considered, most of
which are dependent upon factors outside of the encoder itself.
Some examples:
- Since encoders are most often used as feedback devices, what
information does your system need?
- At what point or points in the overall process is feedback
appropriate?
- What are the environmental conditions that the encoder will be
subjected to?
As a result of these types of considerations, the purpose of
this guide is not to provide the answer, but rather to provide
you guidance in choosing which one of EPC's wide range of
solutions will best meet your requirements. Let's get started!!
Selection Criteria
Your motion system will usually dictate what set of selection
criteria are most important to you. These criteria usually fall
into one of the following broad categories. Select the one that
is most important to you:
Resolution
Mounting
Environmental
Absolute or Incremental
Other
Resolution
Incremental Encoders
|
EPC Encoder
Model # |
1 to
1270
|
1271 to
2540
|
2540 to
4096
|
4096 to
10,000
|
10,000 to
30,000
|
Cube
Series |
• |
• |
|
|
|
Cube
Series (715) |
• |
• |
• |
• |
|
755A,
702,
725,
758,
802S,
858S |
• |
• |
• |
• |
• |
121 |
• |
• |
|
|
|
260 ,
15T/H
, 15S |
• |
• |
• |
• |
|
225 |
• |
|
|
|
|
25T/H |
• |
• |
• |
• |
|
770,
771 |
• |
• |
• |
|
|
775,
776 |
• |
• |
• |
|
|
Notes: Not all resolutions (CPR, PPR) are available in
the range indicated for the Models shown. Click on the link,
consult the latest EPC catalog, or contact
Customer
Service to make sure your desired resolution is available.
Absolute Encoders
|
EPC Encoder
Model # |
8 bit
|
9 bit
|
10 bit
|
11 bit
|
12 bit
|
960 |
• |
• |
• |
• |
|
925 |
• |
• |
• |
• |
• |
958 |
• |
• |
• |
• |
• |
Note: The Model 960 is a Thru-Bore, while the other
two have shafts.
Return To Selection Criteria
Mounting
Shaft Type Encoders
|
EPC
Encoder
Model # |
Measuring Wheel
|
Chain/Cam and Sprocket
|
Shaft to Shaft Coupling
|
Flange
Mount |
Servo Mount
|
Tach Generator (5PY)
|
NEMA Adapter
|
Cube
Series |
• |
• |
• |
|
|
• |
|
15S |
|
|
• |
• |
• |
|
|
755A |
|
|
• |
• |
• |
|
• |
702 |
• |
• |
• |
• |
• |
|
• |
725 |
• |
• |
• |
• |
• |
• |
|
758 |
• |
• |
• |
|
• |
|
|
802S |
• |
• |
• |
• |
• |
|
|
858S |
|
• |
• |
|
• |
|
|
925 |
|
|
• |
• |
• |
|
|
958 |
|
|
• |
|
• |
|
|
Notes: Standard and Industrial housings in the Cube
Series are available with double-ended shafts.
Thru-Bore or Blind Hollow
Style Encoders
|
EPC
Encoder
Model # |
Thru-Bore (T)
or
Blind Hollow (B)
|
Direct
on
Motor
|
Direct on Shaft
|
Flex Mount
|
Large Bore
|
NEMA/
C-Face
|
755A |
B |
• |
• |
• |
• |
|
702 |
B |
• |
• |
• |
|
|
260
|
B & T |
• |
• |
• |
|
|
15T/H
|
B & T |
• |
• |
• |
|
|
121 |
T |
• |
• |
|
|
|
225 |
T |
• |
• |
|
• |
|
25T/H
|
B & T |
• |
• |
• |
• |
|
770 |
T |
• |
• |
|
|
• |
771 |
T |
• |
• |
|
• |
• |
775 |
T |
• |
• |
|
|
|
776 |
T |
• |
• |
|
• |
|
960 |
B & T |
• |
• |
• |
|
|
Other Mounting Mechanisms are available - Contact
Customer
Service for details.
Return To Selection Criteria
Return To Selection Criteria
Housing
|
EPC Encoder
Model # |
Industrial Grade
|
Extra Heavy Duty
|
Extra Shock Resistance
|
Extra Isolation
|
NEMA
|
Stainless
Steel
|
Explosion
Proof
|
All
EPC Encoders |
• |
|
|
|
|
|
|
Cube
Series |
• |
• |
• |
• |
|
|
• |
725I |
• |
|
|
• |
|
|
|
755A |
• |
• |
|
|
• |
|
• |
802S |
• |
|
|
|
|
• |
|
858S |
• |
|
|
|
|
• |
|
Other Housing Styles - Contact
Customer
Service
Return To Selection Criteria
Absolute or Incremental |
Incremental |
|
EPC offers the most extensive selection
of incremental encoders in the industry. |
|
|
Absolute |
|
With Shaft: Size 25 or European Size 64
= Model 925; European Size 58 = Model 958
Thru-Bore or Hollow Bore = Model 960 |
Return To Selection Criteria
Other
EPC has a number of ways of providing you with solutions to your
unique encoder requirements, including a Custom Encoder Design
service. Give us a call at 1-800-366-5412 and put us to work!
Return To Selection Criteria |