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HEIDENHAIN TNC Block Quick Reference: BEGIN/BLK FORM/TOOL CALL/L/C/CR/APPR/CYCL DEF
The most-used HEIDENHAIN TNC Klartext blocks compressed onto one page - the 8-step program layout, a full block table, motion elements (R0/RL/RR, DR, I) and common M codes. For wri...
20小时前
海德汉 TNC「防护门未关 / 门未关」报警怎么查：安全链四层定位 + 门开关门锁排查 + 改动后四项验证
海德汉 TNC 报「防护门未关 / DOOR OPEN / GUARD NOT CLOSED」，本质不是 NC 软件故障，而是 PLC 把「门关闭条件」判成 false。本文按安全链四层（门开关机械 → 安全继电器 → PLC 数字量输入 ...
昨天
FANUC Servo Amplifier: Repair or Replace? A Decision Table and Four Cost Drivers
Comparing repair cost against new-part cost is the wrong way to decide. This guide covers repairability assessment, three tiers of repair, three replacement options, and a four-fac...
昨天
FANUC PMC External Alarm Reverse Lookup: Alarm Number → A Address → Ladder → I/O Point
FANUC external alarms (1000/2000 range) are builder-defined PMC alarms. This guide gives a fixed four-step reverse path: PMC signal status to find the A bit → W-search the coil an...
昨天
SINUMERIK 828D/840D Following Error and Contour Error Tuning: 25050 Alarms, Kv Factor, Feedforward and the Circularity Test
What to do when 25050 contour monitoring alarms? Following official Siemens wording, this article covers the tuning order for following error and contour error on SINUMERIK 828D/84...
昨天
数控机床回零失败怎么分类排查？”找不到参考点”与”参考点位置不对”两大类 + 减速开关/一转信号 + 1850 栅格偏移 / 1821 参考计数器 + 绝对值编码器电池
回零失败别再靠换件试：先分成'找不到参考点'和'参考点位置不正确'两大类。前者再看回零时有没有减速动作——无减速查减速开关与接线，有减速仍失败查编码器一转信号；后者按偏差形态区分 1850 ...
21小时前
How to Read a CNC Machine Electrical Schematic – Symbols, Wire Numbers, Power/Control Circuits, and Tracing an Alarm via PMC Address
A practical method for reading any CNC electrical schematic - common symbols and designations, wire/sheet numbers as coordinates, how to read the power and control circuits, and ho...
昨天
FANUC Alarm 459 HI HRV Setting Error: Odd/Even Axis-Pair SVM Mismatch (Root Cause & Fix)
FANUC alarm 459 'HI HRV SETTING ERROR' is raised when two axes whose servo axis numbers (parameter 1023) are an odd/even pair have mismatched high-speed HRV capability — one SVM s...
昨天
Will Changing the HEIDENHAIN Battery Erase Your Programs? iTNC530 / TNC640 / TNC7 — What Is Lost, What Is Kept, Renata CR2450N and the Live-Swap Steps
The fear before every battery swap: will the programs be gone? On HEIDENHAIN controls like the iTNC530 the answer is no — NC programs, machine parameters, tool tables and datum of...
昨天
FANUC 伺服报警代码对照表 SV0301-SV0441（按报警号可搜索 · 含放大器字母码对照）
FANUC 伺服报警代码对照表 SV0301-SV0449，按报警号可搜索。含 11 个伺服放大器面板字母码（OVL/OVC/HCAL/HVAL/LVAL/FBAL/BZAL/BLAL/DTERR/CRCERR/STBERR）含义与首选检查，附 DGN 720/730/760 ...
昨天
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