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Home › Selection & Replacement › ROD 1931 1024 ID:689890-45 (LEM-016-1024) 1:1 Customized Replacement

ROD 1931 1024 ID:689890-45 (LEM-016-1024) 1:1 Customized Replacement

EncoderWorks Team
7 monthsago

For equipment originally fitted with ROD 1931 1024 ID:689890-45 (LEM-016-1024), a 1:1 customized replacement solution can be provided that preserves the original encoder’s mechanical interfaces and electrical behavior. This replacement is engineered to match the existing installation and control logic, enabling direct integration during maintenance or retrofit without modifying the machine structure or control parameters.

From a technical perspective, the replacement unit is configured as an incremental rotary encoder with a resolution of 1024 pulses per revolution (PPR), consistent with the original specification. Incremental output signals are provided in an industrial-standard format (e.g., HTL/TTL), ensuring compatibility with PLCs, servo drives, and motion controllers that rely on high-frequency edge counts for speed and position feedback. The encoder’s electrical design supports typical industrial DC supply ranges and maintains signal integrity over extended cable lengths. Mechanical execution, including the shaft interface, bearing system, and mounting footprint, is matched to the original ROD 1931 series dimensions, allowing direct replacement without mechanical rework.

ROD 1931 1024 ID:689890-45 (LEM-016-1024) 1:1 Customized Replacement-EncoderWorks
ROD 1931 1024 ID:689890-45 (LEM-016-1024) 1:1 Customized Replacement-EncoderWorks

Mechanically, the replacement emphasizes durability in dynamic environments. Reinforced bearings and a robust housing support continuous operation at elevated shaft speeds while providing resistance to vibration and shock commonly encountered in industrial equipment. With electrical and mechanical interfaces aligned to the original unit, the ROD 1931 1024 (LEM-016-1024) replacement encoder delivers reliable incremental feedback for applications where accurate rotational data is required for closed-loop control and process consistency.

Technical data

ParameterSpecification
ModelROD 1931
Incremental signalsHTLs - C
Output pulse *600, 1024, 1200, 2400
Scanning frequency≤100 kHz
Edge separation $a$≥ 0.62 μs
System accuracy± 1/10SP
Power supply10.8V to 16.5V
Current consumption (without load)≤ 70 mA
Source / Sink max.≤ 40 mA
Electrical connectionTerminal board
ShaftSolid shaft D = 15 mm
Mech. permissible speed n≤ 4000 min^-1}
Starting torque (at 20°C)≤0.05 Nm
Moment of inertia of rotor2.5⋅10−5 kgm^2
Shaft loadAxial: 100 N, Radial: 100 N
Vibration (25 to 200 Hz)≤100 m/s^2 (JIS C 60 068-2-6, EN 60 068-2-6)
Shock (6 ms)≤1000 m/s^2 (JIS C 60 068-2-27, EN 60 068-2-27)
Max. operating temp.70°C
Min. operating temp.-20°C
Protection EN 60 529IP66
WeightApprox. 4.5 kg
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Email: encoderworks@outlook.com

ROD 1931 2048 ID:689890-13 (LEM-009-2048) – Customized Replacement

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