Features
■ Incremental encoder / quadrature output
■ Exceptionally long operating life
■ Sturdy construction
■ Bushing mount
■ Available with PC board mounting bracket (optional)
ECW - Digital Contacting Encoder
Electrical Characteristics
Output ................................................................................2-bit quadrature code, Channel A leads Channel B by 90 º electrically turning clockwise (CW)
Closed Circuit Resistance..........................................................................................................................................................................5 ohms maximum
Open Circuit Resistance.......................................................................................................................................................................100 K ohms minimum
Contact Rating ................................................................................................................................................. 10 milliamp @ 10 VDC or 0.1 watt maximum
Insulation Resistance (500 VDC) ...................................................................................................................................................1,000 megohms minimum
Dielectric Withstanding Voltage (MIL-STD-202 Method 301)
Sea Level............................................................................................................................................................................................1,000 VAC minimum
Electrical Travel..................................................................................................................................................................................................... Continuous
Contact Bounce (15 RPM)...............................................................................................................................................................5 milliseconds maximum
RPM (Operating)...............................................................................................................................................................................................120 maximum
Phase Tolerance (CH A to CH B)............................................................................................................................................................................90 ° ꢀ2 °
Environmental Characteristics
Operating Temperature Range .........................................................................................................................................-40 ºC to +85 ºC (-40 °F to 185 °F)
Storage Temperature Range ......................................................................................................................................... -40 ºC to +85 ºC (-40 °F to +185 °F)
Humidity ...............................................................................................................................................................MIL-STD-202, Method 103B, Condition B
Vibration ..........................................................................................................................................................................................................................15 G
Contact Bounce..........................................................................................................................................................................0.1 millisecond maximum
Shock ..............................................................................................................................................................................................................................50 G
Contact Bounce..........................................................................................................................................................................0.1 millisecond maximum
Rotational Life ................................................................................................................................................................................ 200,000 shaft revolutions
IP Rating..........................................................................................................................................................................................................................IP 40
Mechanical Characteristics
Mechanical Angle................................................................................................................................................................................................. Continuous
Running Torque (Detented).............................................................................................................................................0.5 to 1.5 N-cm (0.ꢀ5 to 2.25 oz-in.)
Undetented Torque........................................................................................................................................................0.1ꢀ to 1.0 N-cm (0.25 to 1.50 oz-in)
Mounting Torque .......................................................................................................................................................................ꢀ9 N-cm (ꢀ lb.-in.) maximum
Shaft Side Load (Static)................................................................................................................................................................... 4.5 kg (10 lbs.) minimum
Weight ................................................................................................................................................................................Approximately 21 gms. (0.ꢀ5 oz.)
Terminals .................................................................................................................................................................................................PC pin or solder lug
Soldering Condition
Manual Soldering..................................................................................................................96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire
3ꢀ0 °C (ꢀ00 °F) max. for 3 seconds
Wave Soldering...........................................................................................................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean flux
260 °C (500 °F) max. for 5 seconds
Wash processes ....................................................................................................................................................................................Not recommended
Marking..........................................................................................................................Manufacturer’s name and trademark, part number, and date code.
Hardware............................................... One lockwasher and one mounting nut are shipped with each encoder, except where noted in the part number.
Quadrature Output Table – This table is intended to show available outputs as currently defined.
1/4 CYCLE PER DETENT
CW
FULL CYCLE PER DETENT (Normally Open in Detent Shown)
Channel A
CW
Channel A
Closed Circuit
Closed Circuit
Open Circuit
Open Circuit
Closed Circuit
Closed Circuit
Open Circuit
Open Circuit
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Channel B
Channel B
RECOMMENDED INCREMENTAL CONTROL DIAGRAM FOR USE WITH A DEBOUNCE CIRCUIT
.0015
f
(CUSTOMER LOGIC CIRCUITRY)
7
9
DIRECTION
5 ms DELAY
DEBOUNCE
(MC 14490)
DECODE
LOGIC
UP/DOWN
COUNTER
BINARY
OUTPUT
MAGNITUDE
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
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