Manual Correction Notice [ NE1A Series ]

The mistake of the print and the description is found in the manual that our company issued. We apologize.

Name of manual

" NE1A Series Safety Network Controller OPERATION MANUAL "
< Publication in October, 2022 > < Manual number Z906-E1-10>

Page of publishing

Page 182 " 8-5-6 Two-hand Control " General Description

Correction method

Example: We revise it at the time of a Catalog reprint on the next time.

Content of correction

Before	After
Content to be included in the General Description	Content to be included in the General Description
Content to be included in the General Description	Add a warning at the end of Chapter 8-5-6

Reference information

Notice of design change of Two-hand control function block in accordance with EN574.

Target Products

Safety Logic Device - Controllers NE1A Series
< Refer to the "[ Details of applicable model]".>

Effective Date

Effective as of our production in March, 2025.

Reason for change

Due to a modification in the program for controlling the 2-hand switches.
*Any functions or specifications will not be changed due to the above reasons.

Change of products specification

It is not necessary to replace Products Specifications provided to customers.

Changes

Before the change	After the change
Behavior of the 2-hand control function block It does not satisfy the requirements of EN574 (Two-hand Control Devices, Functional Aspect - Principle for Design) 5.6 Reinitiation of the output signal and 5.7 Synchronous actuation.	Behavior of the 2-hand control function block It satisfies the requirements of EN574 (Two-hand Control Devices, Functional Aspect - Principle for Design) 5.6 Reinitiation of the output signal and 5.7 Synchronous actuation.

Example) Even if there is a time difference between pressing both switches of Pair 1 and Pair 2, it may reinitiate (Output Enable ON).	Example) If there is a time difference between pressing both switches of Pair 1 and Pair 2, it does not reinitiate.

Countermeasure

If customers use a 2-hand switch and need to satisfy the requirements of EN574, please replace it with a NE1A manufactured after May 2025 (Lot No. DD525).
However, this will not affect customers who do not use a 2-hand switch.

Details of applicable model

Models
NE1A-SCPU01-EIP VER1.1
NE1A-SCPU01-V1 VER2.0
NE1A-SCPU02 VER2.0
NE1A-SCPU02-EIP VER1.1