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FANUC Alarm TCPP-070 — Speed output failed (T_S)

Manufacturer wording — Speed output failed (T_S[%d])
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC TCPP-070 (“Speed output failed (T_S)”): A failure occured while writing I/O or a register. First check: Check the program to determine whether both target type and index are valid.

Updated 2026-09-17 · LogrobotLM reference

Description

A failure occured while writing I/O or a register.

Remedy

Check the program to determine whether both target type and index are valid.

Related codes

TCPP-021WARN Allocate TCPP/VC memory errorTCPP-022STOP Invalid delay time specifiedTCPP-071Min.speed >= Max.speed (T_S)TCPP-072Invalid index (T_S)

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →