Danfoss 131B0026 FC 302 0.37 kW Frequency Inverter
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Product Information
The Danfoss 131B0026 is a VLT AutomationDrive FC 302 frequency inverter for three-phase AC motor control in industrial automation systems. Model FC-302PK37T5E20H1XXXXXXSXXXXAXBXCXXXXDX has a 0.37 kW rating, a 0.50 HP rating, a 380-500 V AC three-phase supply and a compact IP20 A2 chassis. It supports VVC+ Voltage Vector Control Plus and Flux Vector Control for speed and torque control in conveyors, pumps, fans, packaging equipment and other production machinery.
A replacement drive must be checked against the FC 302 model code, T5 mains-voltage designation, PK37 power rating and installed option configuration. Commissioning can be carried out with Danfoss VLT Motion Control Tool MCT 10 or an optional Danfoss LCP 101 or LCP 102 keypad; this drive is supplied without an LCP. Four parameter sets are stored in internal non-volatile EEPROM, and settings can be transferred through the LCP or uploaded to MCT 10 to prepare a spare drive. The built-in RS-485 interface supports Modbus RTU and Danfoss FC Protocol for connection to compatible PLC, HMI and supervisory systems.
For troubleshooting, the green ON LED indicates that power to the drive control board is normal, the yellow WARN LED indicates an active warning and the red ALARM LED indicates a trip or fault condition. MCT 10 provides diagnostic dialogs, while the optional LCP 101 or LCP 102 provides a numerical display; alarm and warning logs and status word registers are also available through the drive parameters and serial or fieldbus communication. Before returning a replacement to service, check the supply, motor-control configuration, RS-485 connection and transferred parameters. The IP20 enclosure requires installation in an appropriately protected control cabinet.
Technical Specifications
| Manufacturer | Danfoss |
| Part number | 131B0026 |
| Model/type | FC-302PK37T5E20H1XXXXXXSXXXXAXBXCXXXXDX |
| Component type | Frequency inverter |
| Product family | VLT AutomationDrive |
| Series | FC 302 |
| Rated power | 0.37 kW |
| Horsepower rating | 0.50 HP |
| Supply voltage | 380-500 V AC, 3-phase |
| Continuous high-overload output current at 380-440 V AC | 1.3 A |
| Continuous high-overload output current at 440-500 V AC | 1.2 A |
| Enclosure protection | IP20 |
| Frame size | A2 |
| Control method | VVC+ Voltage Vector Control Plus or Flux Vector Control |
| Serial interface | RS-485 |
| Built-in protocols | Modbus RTU and Danfoss FC Protocol |
| Parameter storage | 4 parameter sets in internal non-volatile EEPROM |
| Lifecycle status | Active catalog product |
Programming and Configuration
Danfoss VLT Motion Control Tool MCT 10 supports setup, commissioning, parameter backup, parameter transfer and diagnostics for the FC 302. The drive stores four parameter sets in internal non-volatile EEPROM, allowing settings to remain available in the drive for replacement preparation and commissioning.
An optional Danfoss LCP 101 or LCP 102 keypad can be used for local configuration, diagnostics and parameter transfer. Parameters can be copied through the LCP or uploaded to MCT 10 before installing a spare. The 131B0026 is supplied without an LCP, so the keypad is an optional commissioning accessory.
Communication and System Integration
The FC 302 has a built-in RS-485 serial interface with native Modbus RTU and Danfoss FC Protocol support. This provides a connection path for compatible PLCs, HMIs, supervisory systems and other automation equipment.
During replacement, verify that the machine communication system uses a compatible protocol and that the drive parameters transferred through MCT 10 or the LCP match the existing installation. Status word registers can be accessed through fieldbus or serial communication for operating and diagnostic information.
Diagnostics and Status Indication
The drive indicates its basic state through the ON, WARN and ALARM LEDs. MCT 10 provides diagnostic dialogs, while an optional LCP 101 or LCP 102 provides a numerical display. Alarm and warning log parameters and status word registers accessed through fieldbus or serial communication provide additional diagnostic information.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| ON | Green - On | Power supply to the drive control board is normal |
| WARN | Yellow - On when active | A warning condition is present |
| ALARM | Red - On when active | A trip or fault condition is present |
Replacement and Spare Part Considerations
For a compatible replacement, match Danfoss part number 131B0026 and model FC-302PK37T5E20H1XXXXXXSXXXXAXBXCXXXXDX. Also check the FC 302 series, T5 mains-voltage designation, PK37 power rating, 380-500 V AC supply, A2 frame size and installed option configuration. The IP20 enclosure is intended for installation in an appropriately protected control cabinet.
A spare drive may require parameter transfer before it can run the machine. Use MCT 10 or an optional LCP 101 or LCP 102 to restore the required parameter set, then check the RS-485 communication configuration and the connection to the control system. ABC Industrial Parts can support preparation of a replacement or repair and exchange route when restoring the original drive is not practical.
Frequently Asked Questions
What is the Danfoss 131B0026?
The Danfoss 131B0026 is an FC 302 VLT AutomationDrive frequency inverter rated at 0.37 kW and 0.50 HP for 380-500 V AC three-phase motor control.
Which communication interfaces and protocols does the FC 302 131B0026 use?
The drive has a built-in RS-485 interface and supports Modbus RTU and Danfoss FC Protocol.
How are parameters transferred to a replacement drive?
Parameters can be transferred through Danfoss VLT Motion Control Tool MCT 10 or an optional LCP 101 or LCP 102 keypad. The drive also stores four parameter sets in internal non-volatile EEPROM.
Does the Danfoss 131B0026 include an LCP keypad?
No. The drive is supplied without an LCP. An optional Danfoss LCP 101 or LCP 102 can be used for local configuration, diagnostics and parameter transfer.
What do the ON, WARN and ALARM LEDs indicate?
The green ON LED indicates normal power to the drive control board. The yellow WARN LED indicates an active warning, and the red ALARM LED indicates a trip or fault condition.
What should be checked before commissioning a replacement FC 302?
Match the part number, model code, T5 mains-voltage designation, PK37 rating and installed option configuration. Then transfer the required parameters and check the supply, RS-485 connection and control-system communication.
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Data backup and recovery
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