EA Incremental Encoder Adapter

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  • PA063404.jpg
  • PA063405.jpg

Overview

  • Single-ended driver or differential driver/receiver available
  • Three digital channels (A/B/I encoder signals) per adapter
  • Variety of connector options
  • Low cost

Differential Cable Driver/Receiver:   The EA-D-L-10- is a differential RS-422 cable driver which converts the single-ended A/B/I output from USD's single-ended incremental encoders (or any three...

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Product Specifications

ParameterMin.Max.Units
Storage Temperature -40 100 C
Operating Temperature -40 100 C

EA-D-L-5-, EA-D-L-10- Driver Electrical Characteristics

ParameterMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 - 5.5 Volts -
Supply Current - 4.5 9.0 mA -
Output High Voltage 2.5 - - Volts I(OH) = 20 mA
Output Low Voltage - - 0.8 Volts I(OL) = 20 mA
Propagation Time - - 15 ns -

EA-D-H-5-, EA-D-H-10- Driver Electrical Characteristics

ParameterMin.Typ.Max.UnitsNotes
Supply Voltage (Vs) 7.5 - 30 Volts -
Supply Current - - 10 mA -
Propagation Time - 236 330 ns -
Output Low Voltage     0.5 Volts  
Output High Voltage   Vs - 2.0   Volts  
Output Current Source/Sink   20   mA  
Output IC - - - - ET7272

EA-R-L-10- Receiver Electrical Characteristics

ParameterMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 - 5.5 Volts -
Supply Current - 16 25 mA -
Input High Voltage 2.0 - - Volts I(OH) = 20 mA
Input Low Voltage - - 0.8 Volts I(OL) = 20 mA
Propagation Time - - 35 ns -

For a Driver, the input connector is a 4-pin or 5-pin connector chosen from: H5, FH5, C5, FC5, LC5, MIC4, W5. See "4-pin, 5-pin Connector Options" for pictures of the available connectors.
The output connector is either a 5-pin finger latching connector (FH5) or a 10-pin finger latching connector (FH10).

FH5 Output Connector:

5-pinB_3.gif

FH10 Output Connector:

Enc10-pinB_3.gif

PinInput 4-pin Connector (MIC4)Input 5-pin Connector (H5, FH5, C5, FC5, LC5, W5)EA-D-L-5-/EA-D-H-5-  Output 5-pin Connector
(FH5)
EA-D-L-10-/EA-D-H-10- Output 10-pin Connector
(FH10)
1 +5VDC power Ground Ground  Ground
2 A channel (in) Index (in) Index (out)  Ground
3 Ground A channel (in) A channel (out)  Index- (out)
4 B channel (in) +5VDC power +5VDC power
+7.5 to +30VDC power in (EA-D-H-5- only)
 Index+ (out)
5   B channel (in)  B channel (out)  A- channel (out)
6        A+ channel (out)
7        +5VDC power
+7.5 to +30VDC power in (EA-D-H-10- only)
8          +5VDC power
+7.5 to +30VDC power in (EA-D-H-10- only)
9        B- channel (out)
10        B+ channel (out)

Notes:

(1) For the Low voltage (EA-D-L-) versions, the +5VDC pins on the input and output connectors are electrically connected together, so power can be applied on either the input or output connector. For the High voltage (EA-D-H-) versions, the 7.5 to 30VDC power is applied at the OUTPUT connector. +5V out is generated at the INPUT connector.

For a Receiver, the input connector is always a 10-pin finger latching connector (FH10). The output connector is a
5-pin connector chosen from: H5, FH5, C5, FC5, LC5, W5. See
"4-pin, 5-pin Connector Options" for pictures of the available connectors.

FH10 Input Connector

Enc10-pinB_3.gif

PinInput 10-pin Connector (FH10)Output 5-pin Connector
(H5, FH5, C5, FC5, LC5, W5)
1 Ground Ground
2 Ground Index (out)
3 Index- (in) A channel (out)
4 Index+ (in) +5VDC power
5 A- channel (in) B channel (out)
6 A+ channel (in)  
7 +5VDC power   
8   +5VDC power  
9 B- channel (in)  
10 B+ channel (in)  

Notes:

(1) The +5VDC pins on the input and output connectors are electrically connected together, so power can be applied on either the input or output connector.

ConnectorDescription
H5 5-pin right-angle male header soldered in place.
FH5 5-pin finger-latching header soldered in place.
W5* Five 12" discrete wires, no connector on the end.
C5 Five 6" discrete wires with a standard mating connector on the end.
LC5 Five 6" discrete wires with a locking mating connector on the end.
FC5 Five 6" discrete wires with a finger-latching mating connector.
MIC4 Four 6" discrete wires with a micro mating connector.
W5*H5FH5C5
w51.gif h5.gif fh5.gif c5.gif
LC5FC5MIC4
lc5.gif fc5.gif mic4.gif

*Note: The W5 pin-outs are as follows:

PinDescriptionColor
1 Ground Brown
2 Index Violet or NC
3 A channel Blue
4 +5VDC power Orange
5 B channel Yellow

Driver Vs. Receiver Diagram

Product Description

Restriction of Hazardous Substances

Differential Cable Driver/Receiver:  

The EA-D-L-10- is a differential RS-422 cable driver which converts the single-ended A/B/I output from USD's single-ended incremental encoders (or any three TTL level digital signals) to 3 pairs of differential signals. This allows the encoder to drive long cables (6 to 1000 ft.) and reduces false switching in noisy environments. Various connector options are available on the 5-pin input side of this adapter. The output differential signals are available on a male 10-pin finger-latching connector (FH10). The differential signal from the EA-D-L-10- can be connected directly to USD's QSB-D and USB4-D interface products.

The corresponding receiver, EA-R-L-10- converts the received differential signals back to 3 single-ended TTL level digital signals. The differential input side of the receiver is a 10 pin male finger latching connector (FH10). Various connector options are available on the single ended 5-pin output side.

The EA-D-H-10- is the same as the EA-D-L-10-, but offers a wide operating voltage range of 9.5 to 32VDC and a large output voltage swing proportional to the power supply voltage. This adapter allows 5V encoders to be used in high voltage applications.


Single-ended Cable Driver: 

The EA-D-L-5- driver converts 3 single-ended, low drive digital signals to 3 single-ended, high current drive digital signals. This variant is useful since the TTL outputs of some incremental encoders can sink (pull down) just under 4mA and source (pull up) only about 200 uA. The output side of the driver is a 5pin male finger latching connector (FH5). Various connector options are available on the single ended 5-pin input side.

The EA-D-H-5- is the same as the EA-D-L-5-, but offers a wide operating voltage range of 9.5 to 32VDC and a large output voltage swing proportional to the power supply voltage. The EA-D-H-5- allows 5V encoders to be used in high voltage applications.

The EA-D-L-10- and EA-D-L-5- cable drivers use an industry standard 26C31 driver chip. The EA-D-H-10- and EA-D-H-5- use the ET7272 driver chip. An on-board 0.1 microfarad bypass capacitor across the power pins on each of these adapters compensates for inductance and noise, which can be expected at the end of a long cable. The cable receivers use an industry standard 26C32 receiver chip.

US Digital can supply nearly any cable to your specifications. See the Cables & Connectors page for more information. 

Product Notes
  • US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.

Cable/connector assembly not included and must be ordered separately.

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