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Preface
This manual describes operation of E21S numerical control device and is meant for
operators who are instructed for operation of the device. Operator shall read this manual and
know operation requirements before using this device.
Copy right is preserved by ESTUN. It is not allowed to add or delete part or all of the
manual content without ESTUN’s consent. Do not use part or all of manual content for the third
party’s design.
E21S device provides complete software control and has no mechanical protection device
for operator or the tool machine. Therefore, in case of malfunction, machine tool must provide
protection device for operator and external part of the machine tool. ESTUN is not responsible
for any direct or indirect losses caused by normal or abnormal operation of the device.
ESTUN preserves the right to modifying this manual in the event of function adding or print
error.
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