Home 6SE7021-3TP50-Z Siemens SIMOVERT MASTERDRIVES 5.5kW MC Inverter
6SE7021-3TP50-Z
6SE7021-3TP50-Z
6SE7021-3TP50-Z
6SE7021-3TP50-Z
6SE7021-3TP50-Z
6SE7021-3TP50-Z

6SE7021-3TP50-Z Siemens SIMOVERT MASTERDRIVES 5.5kW MC Inverter

  • Manufacturer: Siemens

  • Product No.: 6SE7021-8TB51-Z

  • Condition: In stock

  • Product Type: Inverter

  • Payment: T/T, Western Union

  • Weight: 3400g

  • Shipping port: Xiamen

  • Warranty: 12 months

Selected quantity: 1
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Estimate delivery times: 12-26 days (International), 3-6 days (United States).

Return within 30 days of purchase. Duties & taxes are non-refundable.

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Product Introduction

The 6SE7021-3TP50-Z represents the pinnacle of the Siemens SIMOVERT MASTERDRIVES Motion Control (MC) lineage, engineered specifically for high-dynamic servo applications. Operating on a DC link voltage of 510-650V, this 5.5kW inverter module excels in multi-axis synchronization and complex motion profiles. We recommend that commissioning engineers verify the firmware compatibility between the 6SE7021-3TP50-Z and the existing SIMATIC controller to ensure seamless PROFIBUS cyclic data exchange.

Technical Specifications

  • Brand: Siemens
  • Model: 6SE7021-3TP50-Z
  • Series: SIMOVERT MASTERDRIVES Motion Control (MC)
  • Input Voltage Range: 510 V to 650 V DC
  • Nominal Output Current: 13.2 Amperes
  • Rated Power Output: 5.5 kW
  • Communication Interface: PROFIBUS CBP (Slot A)
  • Feedback Module: C23 Resolver Transducer
  • Safety Function: K80 Safe Stop Option
  • Enclosure Rating: IP20
  • Mechanical Dimensions: 530mm x 380mm x 250mm
  • Net Weight: 14.5 kg

Configuration Hierarchy

  • 6SE7021-3TP50-Z System Architecture
    • Power Conversion Stage
      • High-Speed IGBT Switching
      • DC Link Bus Connection
    • Control & Signal Processing
      • Motion Control Firmware Core
      • Dual-Port RAM for Fast Data Exchange

Diagnostic Capabilities

The 6SE7021-3TP50-Z features a comprehensive internal monitoring system accessible via the PMU or DriveMonitor software. Maintenance teams can diagnose DC link overvoltage, resolver signal loss, and PROFIBUS telegram timeouts in real-time. The K80 option specifically monitors the pulse-disabling circuit, ensuring the drive remains in a safe state during emergency conditions.

Target Equipment & Applications

  • High-speed printing presses requiring precise tension control.
  • Automated packaging lines with complex electronic camming.
  • Material handling systems using Siemens 1FK/1FT servo motors.
  • Metal forming machinery and specialized textile winding.

Logistics & Warranty Support

  • Inclusion: One (1) 6SE7021-3TP50-Z Inverter with Accessories.
  • Warranty: 12-Month Comprehensive Functional Warranty.
  • Dispatch: Orders ship within 24-48 hours.
  • Carrier Partners: Priority delivery via FedEx, UPS, and DHL.

Frequently Asked Questions (FAQ)

Can the 6SE7021-3TP50-Z be used with an AC induction motor?

While possible in V/Hz mode, this MC unit is specifically optimized for permanent magnet servo motors with resolver feedback.

What is the significance of the "Z" suffix in the model number?

The "Z" indicates that the unit was ordered with specific factory-installed options, such as the C23 resolver board and K80 safety function.

How do I address a "F008" DC Link Undervoltage fault?

Check the incoming DC bus voltage from the rectifier. If the voltage is within range, the pre-charging circuit may require service.

Is it possible to replace the CBP PROFIBUS board with a PROFINET board?

Yes, but it requires a hardware swap and reconfiguration in the Siemens Step 7 environment.

Selection Guide: Why choose the Resolver version over an Encoder version?

The 6SE7021-3TP50-Z with resolver feedback is superior for high-vibration and high-temperature environments.

Purchasing Advice

Ensure the DC link fuses are properly rated for 13.2A continuous draw. For legacy replacements, verify that the parameter set from your old unit is backed up, as the "Z" options require specific slot assignments to be recognized by the system firmware.

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Q: Are these parts 100% original and new?

A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.

Q: How fast is the shipping to my country?

A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.

Q: Can I get a formal quotation with shipping costs?

A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.

Q: Do you offer discounts for bulk orders?

A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.




12-Month Comprehensive Warranty

Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.

  • Coverage: Functional defects and hardware failures under normal operating conditions.
  • Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.

Returns & Exchange Policy

We offer a 30-day return policy to ensure you receive the exact part your system requires.

  • Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
  • RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
  • Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.

Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.