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Siemens SINUMERIK 840D sl 6FC5371-0AA30-0AB0 NCU 710.3B PN CNC Control Unit | Original New

Siemens SINUMERIK 840D sl 6FC5371-0AA30-0AB0 NCU 710.3B PN CNC Control Unit | Original New

SIEMENS | SINUMERIK 840D sl

6FC5371-0AA30-0AB0

NCU 710.3B PN CNC Control Unit

SINUMERIK 840D sl NCU 710.3B PN with integrated PLC 317-3 PN/DP, twin fan and battery module, and battery; available from Siemens as a spare part.

KEY SELECTION POINTS

• 24 V DC supply

• PLC 317-3 PN/DP integrated

• 2 GB DRAM and 1 MB NVM

• IP20 / UL open type

LEAD TIME: In stock

WARRANTY: 1 year

Email Inquiry	[email protected]
WhatsApp	+86 18159889985

Appurtenance:

siemens sinumerik 840d sl 6fc5371 0aa30 0ab0 ncu 710 3b pn cnc control unit original new-1

Overview
Technical Data
Inquiry
Features
Interfaces
Installation
Environment
FAQ
Recommend Models
Recommended Products

Technical Data

Complete model	6FC5371-0AA30-0AB0
Product family	SINUMERIK 840D sl
Product type	NCU 710.3B PN CNC control unit
Dimensions	50 x 455 x 272 mm (W x H x D)
Weight	3.7 kg
Supply voltage	24 V DC
Maximum active power	281 W
Typical power loss	21 W
Integrated PLC	PLC 317-3 PN/DP
Work memory	2 GB DRAM; 1 MB NVM
Protection rating	IP20 / UL open type; IPXXB with option-slot cover
Operating temperature	0 to 55 °C
Storage temperature	-25 to 55 °C
Transport temperature	-40 to 70 °C
Relative humidity	5 to 95%
Certifications	CE and cULus

Inquiry

CONTACT

STELLA

Email Inquiry [email protected]

WhatsApp +86 18159889985

Features

Integrated CNC platform

The NCU 710.3B PN combines SINUMERIK 840D sl control functions with an integrated SIMATIC PLC 317-3 PN/DP.

Memory resources

The official data sheet specifies 2 GB DRAM work memory and 1 MB non-volatile memory.

Spare-part supply

Siemens identifies the exact order number as available only as a spare part, so replacement planning should preserve the installed-machine configuration.

Interfaces

PN/DP controller designation

The exact unit is identified as NCU 710.3B PN with PLC 317-3 PN/DP for machine-control and automation communication.

Integrated control architecture

CNC and PLC functions are combined in one SINUMERIK 840D sl NCU platform.

Included service components

The Siemens description includes the twin fan/battery module and battery with the exact spare-part unit.

Installation

Mechanical envelope

Allow for the official 50 mm width, 455 mm height and 272 mm depth and the 3.7 kg net weight.

Electrical supply

Provide the specified 24 V DC supply and account for up to 281 W active power and 21 W typical power loss.

Protection concept

IP20 / UL open-type construction requires installation in a suitable protected control cabinet with the option-slot cover correctly fitted.

Environment

Operating limits

The official operating-temperature range is 0 to 55 °C with condensation and icing excluded.

Storage and transport

Storage is -25 to 55 °C and transport is -40 to 70 °C; permitted relative humidity is 5 to 95%.

Approval check

The data sheet lists CE and cULus; confirm machine-level compliance and regional approvals for the final installation.

FAQ

Q1. How do I confirm that a quotation is for 6FC5371-0AA30-0AB0?

Check the full Siemens order number on the NCU nameplate and ensure the quotation states NCU 710.3B PN with integrated PLC 317-3 PN/DP, twin fan/battery module and battery.

Q2. How can new, used and refurbished NCU units be distinguished?

Request dated photos of the housing, connectors, fan module, battery area and nameplate. Inspect for mounting marks, dust, repaired seals, replaced fans and erased serial labels, and obtain the seller condition statement in writing.

Q3. How can procurement verify the supplier?

Validate company registration, address, bank beneficiary and traceable SINUMERIK references. The quotation should identify the exact model, spare-part status and included fan/battery components.

Q4. Which engineering details require confirmation before ordering?

Confirm 24 V DC supply, 50 x 455 x 272 mm dimensions, 3.7 kg weight, PLC 317-3 PN/DP integration, 2 GB DRAM, 1 MB NVM, cabinet cooling and existing 840D sl compatibility.

Q5. What physical evidence should be obtained before payment?

Require clear nameplate and serial-number photos, connector and fan/battery views, packaging photos and a dated video showing the exact unit. Cross-reference all evidence to the quotation.

Q6. Can another NCU 710 or a different suffix replace this unit?

Not without machine-builder and engineering approval. PN/DP configuration, memory, firmware, dimensions and included service components must match the existing 840D sl system.

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