Siemens 3UF5011-3AN00-1 SIMOCODE pro
The Siemens SIMOCODE pro 3UF5011-3AN00-1 is a motor management and control device belonging to the SIMOCODE pro V series from Siemens. It is designed for intelligent monitoring, protection, and control of low-voltage motors in industrial automation environments. The 3UF5011-3AN00-1 variant is a basic unit that integrates motor protection and communication functions into a compact DIN-rail mounted device.
The 3UF5011-3AN00-1 features PROFIBUS DP communication, enabling seamless integration into Siemens SIMATIC automation systems and other PROFIBUS-compatible controllers. It provides comprehensive motor protection functions including overload, thermistor, phase failure, and ground fault monitoring. The device supports parameterization via SIMOCODE ES software and features onboard digital inputs and outputs for direct control and feedback wiring. Operating on a 24 V DC auxiliary supply, it offers a high degree of diagnostic transparency with detailed fault and status information transmitted over the fieldbus.
The SIMOCODE pro 3UF5011-3AN00-1 is widely used in process industries such as chemical, petrochemical, water and wastewater treatment, and manufacturing plants. It is particularly suited for applications requiring centralized motor management, remote diagnostics, and reduced wiring complexity in motor control centers (MCCs). Its robust design and comprehensive protection functions make it appropriate for demanding industrial environments where motor availability and process reliability are critical.
Technical Specifications
| Series | SIMOCODE pro V |
|---|---|
| Communication Interface | PROFIBUS DP |
| Auxiliary Supply Voltage | 24 V DC |
| Current Measuring Range | 0.3 A – 3 A (with current measuring module) |
| Digital Inputs | 4 |
| Digital Outputs | 2 relay outputs |
| Mounting | DIN rail (35 mm) |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +80 °C |
| Relative Humidity | ≤ 95 % (non-condensing) |
| IP Protection Rating | IP20 |
| Certifications | CE, UL, cUL |
| Motor Protection Functions | Overload, phase failure, thermistor, ground fault |
| Parameterization | SIMOCODE ES software via PROFIBUS or PC cable |
Common Fault Codes
- F01
- Overload trip – motor current has exceeded the set overload threshold for the configured trip class duration.
Check motor load and mechanical system for overload conditions. Allow motor to cool, reset the fault via PROFIBUS or local reset input, and verify overload setting parameters. - F02
- Phase failure – one or more supply phases to the motor are missing or have dropped below the detection threshold.
Check incoming supply phases at the motor starter and contactor. Inspect fuses and cable connections. Restore all three phases before resetting the fault. - F03
- Thermistor fault – the motor thermistor (PTC/NTC) has indicated an over-temperature condition or a wire break/short circuit in the thermistor circuit.
Allow the motor to cool and check thermistor wiring for continuity and correct connection. Verify thermistor type matches SIMOCODE configuration. Reset fault after temperature normalizes. - F04
- Ground fault – an earth leakage current has been detected exceeding the configured threshold.
Inspect motor windings and cable insulation for ground faults using an insulation resistance tester. Identify and repair the fault in the motor or cabling before resetting. - F05
- Communication fault – PROFIBUS DP communication between SIMOCODE and the master (PLC) has been interrupted or lost.
Check PROFIBUS cable connections, termination resistors, and bus address settings. Verify the PLC master is active and the GSD file configuration matches the device. Restore communication and reset the fault. - F06
- Internal device fault – a hardware or firmware error has been detected within the SIMOCODE basic unit.
Cycle auxiliary power supply. If the fault persists, check firmware version and perform a factory reset via SIMOCODE ES software. Replace the basic unit if the fault cannot be cleared. - F07
- Stall protection – motor current remained above the stall threshold after the configured stall time expired, indicating the motor shaft may be locked.
Check for mechanical blockage in the driven load. Inspect motor bearings and coupling. Clear the mechanical fault and reset the SIMOCODE after the motor has cooled. - F08
- Asymmetry fault – excessive current asymmetry between phases has been detected, indicating an unbalanced supply or motor winding issue.
Measure supply voltage symmetry at the motor terminals. Check motor windings for resistance balance. Correct supply imbalance or repair motor windings as required.
Frequently Asked Questions
What communication protocol does the 3UF5011-3AN00-1 support?
The 3UF5011-3AN00-1 supports PROFIBUS DP communication, allowing integration with Siemens SIMATIC S7 PLCs and other PROFIBUS DP master systems.
What auxiliary supply voltage is required for the 3UF5011-3AN00-1?
The device requires a 24 V DC auxiliary supply voltage for operation of the basic unit electronics and communication interface.
Can the SIMOCODE 3UF5011-3AN00-1 be parameterized without a PLC?
Yes, the device can be parameterized using the SIMOCODE ES software on a PC connected via a PROFIBUS interface or a dedicated PC parameterization cable, independent of a PLC.
What motor protection functions are included in this unit?
The 3UF5011-3AN00-1 provides overload protection, phase failure detection, thermistor monitoring, ground fault detection, stall protection, and current asymmetry monitoring.
Is a separate current measuring module required for this basic unit?
Yes, the 3UF5011-3AN00-1 basic unit requires a separate SIMOCODE current measuring module to measure motor current; the measuring module is selected based on the motor's rated current range.
Troubleshooting
SIMOCODE basic unit does not power up or show any LED indication
Measure the 24 V DC auxiliary supply voltage at the supply terminals of the basic unit. Check polarity and verify the supply source is active and within tolerance (20.4–28.8 V DC).
Restore correct 24 V DC supply. Check wiring connections and terminal tightness. If supply is confirmed correct and the unit remains inactive, the internal power supply of the basic unit may be faulty and the unit should be replaced.
PROFIBUS communication fault indicated on PLC or SIMOCODE LED flashing red
Check PROFIBUS cable continuity and connector integrity at both the SIMOCODE and PLC ends. Verify bus termination is applied only at the physical ends of the PROFIBUS segment. Confirm the PROFIBUS address set on the SIMOCODE matches the address configured in the PLC hardware configuration.
Repair or replace faulty PROFIBUS cables and connectors. Correct bus termination. Adjust PROFIBUS address using SIMOCODE ES software or the address switch if applicable. Reload PLC hardware configuration if GSD file settings are mismatched.
Motor trips on overload fault immediately or too quickly under normal load
Read the actual current value and overload setting via SIMOCODE ES software. Compare the configured rated motor current and trip class against the motor nameplate data and application load profile.
Correct the rated motor current parameter and trip class setting in SIMOCODE ES to match the motor nameplate values. Ensure the correct current measuring module is installed for the motor's current range.
Digital inputs on SIMOCODE not responding to control signals
Measure the voltage at the digital input terminals with a multimeter while activating the control signal source. Verify the input signal voltage level is within the specified range for the SIMOCODE digital inputs (24 V DC logic).
Check and repair control wiring to the digital input terminals. Ensure the signal source provides 24 V DC logic levels. Verify input function assignments in the SIMOCODE ES parameterization match the intended control circuit design.
Thermistor fault displayed even though motor is cold
Measure the resistance of the thermistor circuit at the SIMOCODE thermistor input terminals. A PTC thermistor should read low resistance when cold (typically below 250 ohms). Check for open circuit (wire break) or short circuit in the thermistor wiring.
Repair any open or short circuit in the thermistor wiring. Verify the thermistor type (PTC or NTC) matches the configuration in SIMOCODE ES. Replace the motor thermistor if it is found to be defective.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|