Pacer encoder0 pages

Lineshaft Pacer Encoders

The ability to interface a position
encoder to a Servo Drive can provide vital
position information to the motion control
system.
This approach is simple, yet effective,
because information for the "encoder axis"
is available to be used in the same way that
information is used from any "servo axis".

Electrical Specifications
Excitation voltages: 5 VDC @ 100 mA
maximum.
Output format: Two outputs (A and B) in
phase quadrature with a zero reference (Z)
output

Output Specifications: Output stage is an
MC3487 (or performance equivalent)
differential line driver with 20 ma sink and
Remote Encoders Uses
Shaft: 303 stainless steel
-20 ma source current.
1) Pacer Encoders measure real-time
Maximum shaft speed: 8000 RPM or 200
shaft position data of a machine axis. It
KHz count channel output frequency,
Mechanical Specifications
is sent to other servo axes in the system
Maximum Shaft loading (axial & radial): whichever occurs first (before cycle
for electronic gearing and/or cam
interpolation).
80 lb. max. Rated load of 20-40 lb.
profiling applications.
Weight: 11 oz. typical (25S)
2) Programmable limit switches on each Shaft radial runout: 0.001" max. at center
14 oz. typical (25C)
Servo Drive can be configured to turn of shaft length
on or off based on pacer encoder
Maximum Starting torque at 25C:
Environmental Specifications
position.
1.0 oz-in typical with IP64 shaft seal or
Operating temperature range:
3) Position and velocity information is no seal
0 to +70C
accessible from the application program 3.0 oz-in typical with IP66 shaft seal
Storage temperature range:
for every encoder used with SMLC and
Shaft angular acceleration:
-25 to +85C
XD-Indexer systems.
105 radians/sec2 (maximum)
Maximum Shock: 75G's for 11
4) Remote Feedback Encoders can be
Moment of inertia: 5.2 x 10-4 oz-in-sec2
milliseconds duration
used to provide position feedback
Bearing type: Precision ABEC ball bearing
directly from the load under control,
Vibration: 20G at 58 Hz to 500 Hz
Minimum Bearing Life: 1.5 x 109
usually used in conjunction with
Maximum Humidity:
velocity feedback from the servo motor revolutions at rated shaft loading.
98% R.H. (non-condensing)
shaft. It provides an additional level of
precision in the control system.
ORDERING GUIDE
Lineshaft Pacer Encoders
ServoWire Drive Interface
EDR-25S/A1000
Position Encoder: 1000 linecount, provides 4,000 counts/rev
The encoder interface is a partial servo
EDR-25S/A1250
Position Encoder: 1250 linecount, provides 5,000 counts/rev
axis interface consisting only of differentially received quadrature A and B channels
EDR-25S/A2500
Position Encoder: 2500 linecount, provides 10,000 counts/rev
and a reference Z-channel. Selecting the
EDR-25S/A5000
Position Encoder: 5000 linecount, provides 20,000 counts/rev
"encoder input" axis control mode disables
EDR-25S/B5000
Position Encoder: 10,000 linecount, provides 40,000 counts/rev
servo drive alarm detection but still
EDR-25S/E2500
Position Encoder: 12,500 linecount, provides 50,000 counts/rev
provides open wire detection to insure
EDR-25S/D5000
Position Encoder: 20,000 linecount, provides 80,000 counts/rev
encoder position information integrity.

Optical Position Encoders
ORMEC Model EDR-25 optical,
incremental position encoders are ideal for
a wide variety of rugged industrial
applications where reliability is a prime
concern.
The EDR-25 provides a 1/4 cycle wide
gated zero reference output. Models with
cycle interpolation have maximum
resolutions up to 200,000 counts per shaft
revolution.

EDR-25S/E5000

Position Encoder: 25,000 linecount, provides 100,000 counts/rev

EDR-25S/F5000

Position Encoder: 25,000 linecount, provides 100,000 counts/rev,
high freq.

EDR-25S/G5000

Position Encoder: 50,000 linecount, provides 200,000 counts/rev,
high freq.

Note: To specify encoder with flange mount and integral coupling, replace "25S" in
model numbers above with "25C".
CBL-QE25SW/X

Encoder Cable, EDR-25 to ServoWire Drive, 5-150 ft

CBL-QE25SWV/X

Encoder Cable, EDR-25 to ServoWire Drive, IP-67, water-resistant,
5-150 ft

CBL-AXEQE15/X

Encoder Cable, EDR-25 to SAC-XD Drive, 5-150 ft

CBL-AXEQE15V/X

Encoder Cable, EDR-25 to SAC-XD Drive, IP-67, water-resistant, 5150 ft

CON-E25

Encoder Connector kit for EDR-25 Encoders
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