Siemens 6FM1420-1CA00 WS 400-20 Operator Interface

Availability: 6 left in stock

DescriptionThe Siemens 6FM1420-1CA00 is a rugged machine-level Human-Machine Interface (HMI) designed for the legacy WS 400-20 operator series. This device...

SKU: 6FM1420-1CA00

Manufacturer: Siemens
Product No.: 6FM1420-1CA00
Product Type: Operator Interface HMI
Product Origin: Germany
Payment:T/T, Western Union
Weight: 2400g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Siemens 6FM1420-1CA00 is a rugged machine-level Human-Machine Interface (HMI) designed for the legacy WS 400-20 operator series. This device integrates an Electroluminescent (EL) display block alongside a dedicated array of 8 physical function keys and a 10-key block for deterministic numeric data entry. Engineered for resilience in harsh environments such as automated petroleum refining, base-load thermal power plants, and underground mining operations, this interface provides operators with localized process monitoring and fault diagnostics.

Features

High-contrast Electroluminescent (EL) display for superior legibility in variable lighting.
Tactile membrane switch interface with 8 function keys and a 10-key numeric block.
Sealed housing design to protect internal electronics from industrial dust and moisture.
Designed for flush-panel mounting in standard control enclosures.
Provides direct hardware feedback and communication with host PLC systems for rapid alarm and process variable updates.

Applications

This operator interface is intended for use in legacy industrial automation systems, including machine tool control, power plant auxiliary monitoring, and mining process management where reliable, localized operator interaction is required.

Technical Specifications

Model	6FM1420-1CA00 (WS 400-20)
Brand	Siemens
Series	WS 400 Series
Device Type	Operator Interface HMI
Display Technology	Electroluminescent (EL)
Input Interface	8 Function Keys, 10-Key Block
Operating Voltage	24 VDC
Operating Temperature	0 to 50 deg C
Storage Temperature	-20 to 60 deg C

Installation Guidelines

Ensure the control panel cutout is prepared to the manufacturer's specifications to maintain the integrity of the gasket seal.
Verify that the power supply is disconnected before installation or removal of the module to prevent electrical damage.
Ensure the unit is mounted in a location that provides adequate ventilation to maintain operating temperatures within the specified 0 to 50 deg C range.
Use shielded communication cables to minimize electromagnetic interference (EMI) in high-noise industrial environments.
Handle with care to avoid damage to the membrane keypad and display surface during mounting.

FAQ

Is this unit compatible with modern SIMATIC S7 controllers?

The 6FM1420-1CA00 is designed specifically for the legacy WS 400-20 series. Compatibility with newer S7-series controllers may require specific communication gateways or protocol converters; please consult your system documentation to verify interface requirements.

What is the primary maintenance requirement for this HMI?

Maintenance is primarily focused on ensuring the integrity of the panel gasket to prevent ingress and periodically cleaning the membrane keypad with non-abrasive industrial cleaners to maintain tactile responsiveness.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.