ECW1J-B24-BC0024

ECW1J-B24-BC0024 Datasheet

ECW - Digital Contacting Encoder

Part	Datasheet
ECW1J-B24-BC0024	ECW1J-B24-BC0024 (pdf)

Related Parts	Information
ECW1D-B24-BC0024	ECW1D-B24-BC0024

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s Incremental encoder / quadrature output s Exceptionally long operating life s High operating temperature capabilities - up to 125°C s Sturdy construction s Bushing mount s Available with PC board mounting bracket optional ECW - Digital Contacting Encoder Electrical Characteristics Output gray code, Channel A leads Channel B by 90º electrically turning clockwise CW Closed Circuit Resistance ohms maximum Open Circuit Resistance ohms minimum Contact Rating milliamp 10 VDC or watt maximum Insulation Resistance 500 VDC megohms minimum Dielectric Withstanding Voltage Method 301 Sea Level VAC minimum Electrical Contact Bounce 15 RPM milliseconds maximum RPM maximum Environmental Characteristics Storage Temperature Range to +140ºC Operating Temperature Range to +125ºC Humidity Method 103B, Condition B Vibration Contact millisecond maximum Shock Mechanical Characteristics Mechanical Angle Weight oz. Torque Detented to oz-in. Mounting Torque in-lbs. maximum Shaft Side Load lbs. minimum *Applies to EC Option. QUADRATURE OUTPUT TABLE This table is intended to show available outputs as currently defined. 1/4 CYCLE PER DETENT Channel A Closed Circuit Open Circuit Closed Circuit Open Circuit DD D DD DDDD DDD DD D Channel B FULL CYCLE PER DETENT Normally Open in Detent Shown Channel A Closed Circuit Open Circuit Closed Circuit Open Circuit Channel B RECOMMENDED INCREMENTAL CONTROL DIAGRAM .0015µf 5ms DELAY DEBOUNCE MC 14490 CUSTOMER LOGIC CIRCUITRY DECODE LOGIC DIRECTION MAGNITUDE UP/DOWN BINARY COUNTER OUTPUT Specifications are subject to change without notice. DIGITAL CONTACTING The Digital Contacting Encoder is commonly referred to by such names as Digital Panel Control, Bit Switch, Gray Switch and Digital Switch. All such names are synonymous with a device whose output is a digital gray code signal, rather than a conventional potentiometric voltage ratio output. The advantage of the Digital Contacting Encoder is that it permits the direct entry of digitized analog data into a digital circuit without A/D conversion. The two 2 channel gray coded signal of this incremental encoder allows the user’s decoder circuit to sense analog direction of rotation, as well as up-down counter capabilities all without the time and cost required for A/D conversion. This approach can reduce memory overhead, wiring and wiring interconnects, and can provide greater MPU program speed. ECW - Digital Contacting Encoder BUSHING MOUNTED - HOUSING A W style bushing shown. Shaft lengths "L" for B, C, R and Y styles 24 = 19mm 36 = 28.5mm ± ± PCB BRACKET MOUNTED - HOUSING B Dimensions not given are the same as Bushing Mounted. ± ±

PDF Datasheet Preview

s Incremental encoder / quadrature output s Exceptionally long operating life s High operating temperature capabilities -
up to 125°C s Sturdy construction s Bushing mount
s Available with PC board mounting bracket optional

ECW - Digital Contacting Encoder

Electrical Characteristics

Output gray code, Channel A leads Channel B by 90º electrically turning clockwise CW Closed Circuit Resistance ohms maximum Open Circuit Resistance ohms minimum Contact Rating milliamp 10 VDC or watt maximum Insulation Resistance 500 VDC megohms minimum Dielectric Withstanding Voltage Method 301

Sea Level VAC minimum Electrical Contact Bounce 15 RPM milliseconds maximum RPM maximum

Environmental Characteristics

Storage Temperature Range to +140ºC Operating Temperature Range to +125ºC Humidity Method 103B, Condition B Vibration

Contact millisecond maximum Shock

Mechanical Characteristics Mechanical Angle Weight oz. Torque Detented to oz-in. Mounting Torque in-lbs. maximum Shaft Side Load lbs. minimum
*Applies to EC Option.

QUADRATURE OUTPUT TABLE This table is intended to show available outputs as currently defined.
1/4 CYCLE PER DETENT

Channel A

Closed Circuit Open Circuit

Closed Circuit Open Circuit

DD D DD DDDD DDD DD D Channel B

FULL CYCLE PER DETENT Normally Open in Detent Shown

Channel A

Closed Circuit Open Circuit

Closed Circuit Open Circuit

Channel B

RECOMMENDED INCREMENTAL CONTROL DIAGRAM
.0015µf
5ms DELAY DEBOUNCE MC 14490

CUSTOMER LOGIC CIRCUITRY

DECODE LOGIC

DIRECTION

MAGNITUDE

UP/DOWN BINARY COUNTER OUTPUT

Specifications are subject to change without notice.

DIGITAL CONTACTING The Digital Contacting Encoder is commonly referred to by such names as Digital Panel Control, Bit Switch, Gray Switch and Digital Switch. All such names are synonymous with a device whose output is a digital gray code signal, rather than a conventional potentiometric voltage ratio output.

The advantage of the Digital Contacting Encoder is that it permits the direct entry of digitized analog data into a digital circuit without A/D
conversion. The two 2 channel gray coded signal of this incremental encoder allows the user’s decoder circuit to sense analog direction of rotation, as well as up-down counter capabilities all without the time and cost required for A/D conversion. This approach can reduce memory overhead, wiring and wiring interconnects, and can provide greater MPU program speed.

ECW - Digital Contacting Encoder

BUSHING MOUNTED - HOUSING A W style bushing shown.

Shaft lengths "L" for B, C, R and Y styles 24 = 19mm 36 = 28.5mm
± ±

PCB BRACKET MOUNTED - HOUSING B Dimensions not given are the same as Bushing Mounted.
± ±

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Datasheet ID: ECW1J-B24-BC0024 522182