131B0503
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MPN: FC-302PK55T5E20H1XXXXXXSXXXXA0BXCXXXXD0
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The 131B0503 is an automation drive manufactured by Danfoss. As part of the VLT FC 302 Automation Drives series, it supports both induction and PM synchronous motor types. The drive operates at an input voltage of 380-480 V AC. It offers an IP20 protection rating and an output frequency range of 0-590 Hz.
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Product Description:
The Danfoss 131B0503 Frequency Converter provides reliable control for asynchronous motors. It supports precise speed regulation and analog output functionality. Its design ensures stable performance in industrial applications with configurable outputs and solid control accuracy.
This 131B0503 frequency converter includes one programmable analog output that is located at terminal 42. The analog output current range is 0/4–20 mA and it supports a maximum resistor load of 500 ohms. The analog output accuracy is specified with a maximum error of 0.8 % of the full scale and the resolution is 8 bit. The unit also features two programmable relay outputs. These relay terminals support wire cross sections between 0.2 mm² (30 AWG) and 2.5 mm² (12 AWG). The stripped wire length should be 8 mm (0.3 in). For voltage output, the unit provides a + 10.5 V ± 0.5 V DC signal through terminal 50 with a maximum load of 25 mA. This output is galvanically isolated from the main supply voltage that ensures safe integration with control systems. The model is suitable for 4 pole asynchronous motors and supports dynamic speed applications.
The control characteristics of the 131B0503 frequency converter further enhance its operational capabilities. It delivers high resolution frequency output from 0 to 1000 Hz with a precision of ± 0.003 Hz. The system response time that is applicable to terminals 18, 19, 27, 29, 32 and 33 is less than or equal to 2 m/s. The speed control in open loop mode supports a ratio of 1:100 compared to synchronous speed. The unit maintains speed accuracy between 30 and 4000 RPM with a maximum error of ± 8 RPM. These specifications ensure dependable control for varied motor speed demands.
Frequently Asked Questions about 131B0503:
Q: How does the Danfoss 131B0503 frequency converter ensure precise motor regulation across a wide speed range?
A: It supports a 1:100 open-loop speed control ratio with consistent accuracy from 30 to 4000 RPM. The speed error remains within ±8 RPM to ensure controlled performance.
Q: What makes the 131B0503 frequency converter suitable for responsive control systems with high-speed inputs?
A: It offers a response time of ≤ 2 milliseconds on key terminals, enabling rapid signal processing. This ensures timely feedback for dynamic speed and position adjustments.
Q: How does the 131B0503 frequency converter deliver safe analog integration with automation systems?
A: Its 0/4–20 mA analog output is galvanically isolated from the main voltage. This design protects sensitive downstream components and supports interference-free control signaling.
Q: What contributes to the analog output precision in the Danfoss 131B0503 during continuous operation?
A: It maintains a full-scale accuracy within 0.8% and offers 8-bit resolution. This allows consistent signal quality for analog-driven monitoring or control feedback.
Q: How can the 131B0503 frequency converter’s output configuration adapt to varied wiring and system layouts?
A: It includes two relay outputs with flexible terminal support for 0.2 to 2.5 mm² wire. This enables reliable connections across different industrial wiring standards.
