6SL3210-1KE21-7UB1 Siemens SINAMICS S120 Motor Module 21A 380-480V AC Drive

Siemens 6SL3210-1KE21-7UB1

SINAMICS S120 Motor Module

380-480V Drive Module

6SL3210-1KE21-7UB1

Siemens 6SL3210-1KE21-7UB1 SINAMICS S120 Motor Module is a 380-480V AC drive module designed for high-performance motor control, offering energy efficiency, compact design, and reliable operation in industrial automation systems.

Specification

SEODescription

The Siemens 6SL3210-1KE21-7UB1 is a SINAMICS S120 Motor Module designed as a 380-480V Drive Module for industrial automation applications. It operates within a three-phase AC voltage range of 380–480V and delivers precise motor control for synchronous or asynchronous motors. This module integrates directly with SINAMICS S120 control units, supporting multi-axis configurations and seamless communication via PROFIBUS or PROFINET interfaces. It lacks built-in digital I/O but relies on external control units for system integration. Ideal for manufacturing, robotics, and heavy machinery, it offers high efficiency, dynamic performance, and modular scalability. However, its complexity requires specialized commissioning, and its higher cost may be a consideration for budget-sensitive projects. Operating temperature ranges from 0 to 55°C, ensuring reliability in demanding environments.

SEOSpecification

Parameter	Specification
Product Model	Siemens 6SL3210-1KE21-7UB1
Device Type	SINAMICS S120 Motor Module
Input Voltage	380-480V AC, 3-phase
Rated Current	21 A
Output Power	7.5 kW
Cooling Method	Liquid-cooled
Protection Class	IP20
Communication Interface	Drive-CLiQ
Operating Temperature	0°C to 40°C
Weight	3.5 kg
Certifications	CE, UL, cULus
Application	Servo/Induction Motor Control

SEOQandA

question:Can I arrange self-pickup via official couriers?
answer:Yes, self-pickup can be arranged by coordinating with our customer service and providing order details.
question:Do you accept payment after delivery?
answer:We typically require upfront payment, but flexible terms can be negotiated for trusted clients.
question:Why can other suppliers source discontinued models you can't?
answer:They may access gray-market stock or refurbished units, which we avoid to ensure compliance and quality.

SEOQandA_Product

question:Overcurrent fault during operation.
answer:Check motor parameters, load conditions, and ensure acceleration/deceleration settings are appropriate. Verify wiring for short circuits.
question:Inverter overheating alarms frequently.
answer:Ensure adequate ventilation, clean cooling fins/fans, and verify ambient temperature stays within specified limits.
question:Communication failure with PLC/protocol.
answer:Confirm correct PROFIBUS/USS address, baud rate, and cable termination. Test with shielded cables and check grounding.
question:Motor doesn't start; no output voltage.
answer:Verify enable signals (ON/OFF1), check DC bus voltage, and ensure no safety interlock (e.g., STO) is active.
question:Parameter changes not retained after reboot.
answer:Use 'Copy RAM to ROM' function in commissioning software (e.g., STARTER) to save parameters permanently.