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Laurel Electronics LTE: Ethernet & 4-20 mA Output Transmitter for Position or Rate from Quadrature Encoders User Manual

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LAUREL

ELECTRONICS INC.

, 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2

Specifications

Quadrature Inputs

Type
Transitions Monitored
Max Pulse Rate
Internal Counts
Position Error

Differential or single-ended quadrature
x1, x2 or x4
250 kHz at x1, 125 kHz at x2, 62.5 kHz at x4
-999999 to +999999
No error contributed by transmitter

Quadrature Position Mode

Zero Adjust
Span Adjust

-999999 to +999999
0 to ±999999

Quadrature Rate Mode

Conversion Technique
Output Update Rate
Gate time
Time Before Zero Output
Time Base Accuracy
Zero Adjust
Span Adjust

Inverse period
30 ms + 0-2 signal periods
Selectable 10 ms to 199.99 s
Selectable 10 ms to 199.99 s
Calibrated to ±2 ppm
-999999 to +999999
0 to ±999999

Analog Output (standard)

Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Update Rate
Output Isolation

4-20 mA and 0-10 Vdc (selectable)
10V ( 0-500Ω m load )
2 mA ( 5 kΩ load )
16 bits (65,536 steps)
±0.05% of output span
25/sec max
250V rms working, 2.3 kV rms per 1 minute test

Serial Communications (standard)

Type
Data Rates
Output Isolation
Serial Protocols
Modbus Compliance
Digital Addresses

10/100Base-T Ethernet per IEEE 802.3
300, 600, 1200, 2400, 4800, 9600, 19200 baud
250V rms working, 2.3 kV rms per 1 min test
Modbus TCP, Modbus RTU, Modbus ASCII, Laurel ASCII
Modbus over Serial Line Specification V1.0 (2002)
247 for Modbus, 31 for Laurel ASCII

Dual Relay Output (standard)

Relay Type
Load Rating

Two solid state relays, SPST, normally open, Form A
120 mA at 140 Vac or 180 Vdc

Sensor Excitation Output (standard)

Output Levels
Output Isolation

5V@100 mA, 10V@120 mA, 24V@50 mA (jumper selectable)
50V from signal ground

Power Input

Standard Power
Low Power Option

85-264 Vac or 90-300 Vdc (DC operation not UL approved)
10-48 Vdc or 12-32 Vac