BRAND: STEGMANN SMS
MODEL: 046/20 131 93721
PROGRAM DRIVE
220V-50HZ
250V, 15A
COS= 1
AUG: 1981
MADE IN GERMANY
This is a STEGMANN SMS Programmable Indexer/Drive Controller (likely a stepper or servo drive). The “SMS” line is known for being a compact, programmable drive system that integrates the controller and drive electronics into a single unit. It’s designed to precisely control the movement of a motor.
Decoding the Part Number & Label
The information you provided can be broken down as follows:
1. STEGMANN SMS
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Brand: STEGMANN (a well-known German manufacturer of encoders and drive systems, now part of Turck).
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Product Line:Â SMS (a series of programmable servo/stepper drives).
2. 04620 131 93721
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This is the complete article number or ordering code.
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04620Â is likely the base model number for the drive series. -
131Â andÂ93721Â are specific suffixes that define the exact configuration, including voltage, current, firmware, and connector options.
3. PROGRAM DRIVE SMS04620.131
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This confirms the device’s function: a Programmable Drive.
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SMS04620.131Â is the core product identifier used for ordering and documentation.
4. 220V-50HZ 15A
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This is the electrical specification.
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Input Voltage:Â
220V AC -
Frequency:Â
50 Hz -
Maximum Current:Â
15 Amps (This is the current the drive can supply to the motor).
5. SEO
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This is an internal code or abbreviation. It could stand for something like “Standard Edition Option” or a specific factory code. It’s not a standard public-facing technical term.
Key Features (Inferred from the Model)
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All-in-One Unit:Â Combines the motion controller and power amplifier, saving space and wiring.
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Programmability:Â Can store and execute motion sequences (e.g., point-to-point moves, velocity profiles). Programming is typically done via proprietary software.
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High Power:Â The 15A rating indicates it is for driving medium-to-large motors.
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Industrial Use:Â Designed for automation applications like packaging, material handling, assembly, and robotics.
What is this used for?
This drive would be used in an automated machine to control a motor with high precision. For example:
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Controlling the position of a conveyor belt.
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Rotating a table to a specific angle.
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Driving a linear actuator to push or place a product.
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Controlling the movement of a robotic arm joint.

















