Series F18 Commutating Optical Encoders

  

Series F18 Commutating Encoder

 F18 Optical Encoders
Dynapar Brand Logo
 

Quick Specs...

  • Premium servo motor feedback in a compact, reliable, and easy-to-install package
  • Outside diameter 1.96" (50 mm)
  • Resolution to 10,000 PPR for low speed smoothness
  • Frequency response to 500 kHz
  • Operation to 120°C doesn't limit machine performance


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Overview Industry/Application Specifications Related Info  

Overview / Design Principle:

A compliant tether allows easy mounting with high tolerance to motor shaft movement and 30 degrees of adjustment to align the signal outputs to the shaft position.

A superior optical configuration allows for generous internal component clearance eliminating potential damage at high ambient operating temperatures. High temperature rated grease is standard for extended bearing life. No special tools are required for installation.

The use of optically-generated signals for Brushless DC (BLDC) servo control provides higher accuracy and reliability by eliminating the hysteresis found in competitive units with hall effect sensors, ensuring maximum performance and reliability of the servo system.

Features and Benefits:

  • The F18 design operates up to 120°C. The high temperature materials, phased array sensor, and low current requirements stabilize the output signals over a wide range of input voltage, ambient temperature, or output frequencies.
  • The F18 features a clamping system, available in top or bottom locations, which does not mar the shaft, will not loosen over time and provides superior clamping force.
  • For fast, easy installation a slot is provided on the encoder hollow shaft, which when is aligned to molded mark on cover, sets the index. The housing may be rotated to allow further adjustment of the index, or fine alignment of the commutation channels to the BLDC motor windings.
  • The F18 outputs are protected from short circuits and operate on 5 VDC power.

The Dynapar Advantage:

  • Innovative, high quality leading edge technology encoder products
  • Broad commercial - industrial grade product line
  • Fast 3 Day Delivery and customized built to order solutions available
  • Global Manufacturing & Service Support
  • Fast-Friendly Customer Service & Technical Support with Multi-Lingual Capabilities
  • Global Network of Authorized Resellers
  • Competitive Product Warranty:  2 Years

Applications:

The Dynapar brand Series F18 encoder provides high performance, cost effective feedback for stepper and servo motor controls. The F18 offers compact package dimensions and a pluggable pin header.

Standard Operating Characteristics
Code: Incremental with commutation option, Optical
Resolution: 500, 512, 1000, 1024, 2000, 2048, 2500, 4096, 5000, 8192, 10,000 PPR incremental with 4, 6, 8 or 12 pole commutation channels
Accuracy: Incremental: ±2.5 arc-mins. max. edge to any edge;
Commutation: ±6 arc-mins. max.
Phasing for CCW rotation of motor shaft: (viewing encoder cover): A leads B by 90° and U leads V leads W by 120°.
Minimum edge separation: A to B is 45°.
Index to U channel: +/- 1° mech. index pulse center to U channel edge.
Index Pulse Width: 90° gated A and B high; (180° gated B high gating options available - consult factory)

Electrical
Input Power Requirements: 5 ± 10% VDC at 150 mA max (incremental only); 175 mA max. (incremental and commutation), excluding output load
Output Signals: Line Driver: sink/source 40 mA max.
Open Collector Incremental (≤ 2048 PPR): 16 mA sink max.
Open Collector Commutation: 30 mA sink max. (2.0 kΩ pull-ups in encoder)
Frequency Response: PPR ≤ 2048: 250 kHz; PPR > 2048: 500 kHz
Termination: 16 pin, fully shielded, 2 mm pitch, double row header. Accessory mating cable assembly available: 26 AWG twisted pair, jacketed and shielded with copper drain wire

Mechanical
Weight: 4 oz. (110 gm) typ.
Dimensions: Outside Diameter with cover: 1.96" (49.8 mm), without cover 1.85" (47.0 mm);
Outside collar height 1.71" (43.4 mm), inside collar height 1.50" (38.1 mm)
Material: Bearing housing: aluminum;
Cover: high temperature, glass filled polymer;
Hub: Brass;
Disk: 0.030" thick glass
Finish: Cover: RAL 7010 (dark grey)
Moment of Inertia: 5.3 x 10-4 in-oz-sec.2 (37.3 gm-cm2)
Hub Diameters: 1/4", 3/8", 7/16", 1/2", 6 mm, 8 mm, 10 mm, 12 mm standard
Bore Dia. Tolerance: +0.001"/-0.000" (+0.025 mm/-0.000 mm)
Mating Shaft Length: 1.62" (41 mm) minimum for outside shaft collar. 0.50 inch minimum for inside shaft collar
Mating Shaft Runout: 0.002" (0.05 mm) max. (Includes shaft perpendicularity to mounting surface)
Mating Shaft Axial movement: ±0.060" (±1.52 mm) max.
Mounting: Four standard configurations are available for tethers. A choice of U.S. or Metric screws are included. Mounting holes should be 0.01" (0.254 mm) true position to shaft for best encoder operation.
Shaft clamp: 2 #6-32 set screws in collar around hub shaft (will not mar shaft)
Electrical/Mechanical Alignment Range: ±15° mechanical typical (see tether options)
Acceleration: 100,000 rad/sec.2 max.
Velocity: RPM = (Frequency / PPR) x 60; or 12,000 RPM, whichever is less.
Bearing Life: [(3.6 x 109) / RPM] Hours; e.g. 605,000 hours @ 6,000 RPM
(Based on bearing manufacturer's suggested calculation for 6803ZZ with 37N equivalent dynamic load - including preload and tether reaction loads - at 6000 RPM continuous with adequate lubrication)

Environmental
Operating Temperature: 0° to +120°C
Storage Temperature: -40° to +120°C
Shock: 100 Gs for 6 msec duration
Vibration: 2.5 Gs at 5 to 2000 Hz
Relative Humidity: 90% non-condensing
Enclosure Rating: NEMA 1 / IP40 (for models with cover)

Electrical Connections
Pin
Function*
Cable Wire Color
1
VCC
RED
2
U
BROWN
3
GND
BLACK
4
V
GRAY
5
A
BLUE
6
W
WHITE
7
BLUE/BLACK
8
NONE
NONE
9
B
GREEN
10
BROWN/BLACK
11
GREEN/BLACK
12
GRAY/BLACK
13
Z
VIOLET
14
WHITE/BLACK
15
VIOLET/BLACK
16
NONE
NONE
* Funtion availability dependant on Model

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