Siemens A7440 fault code meaning
Siemens / A7440
Series: V90
EPOS: Jerk time has reached the limit
servo drive
Meaning: Message category: Parameter setting/configuration/commissioning error (18). Calculation of the jerk time Tr = max (p2572, p2573)/p2574 produces a large value, causing the jerk time to be limited internally to 1000 ms. Note: The alarm is also output when jerk limitation is disabled. See: p2572 (EPOS Maximum acceleration), p2573 (EPOS Maximum deceleration), p2574 (EPOS Jerk limitation).
Possible causes
Source: SINAMICS V90 PROFINET, SIMOTICS S-1FL6 Operating Instructions P390