Yaskawa LT-4 fault code meaning
Yaskawa / LT-4
Series: A1000, H1000, V1000, W1000
IGBT maintenance due (50%)
drive
Meaning:
Possible causes
Source: A1000 Series Quick Start Guide P110; H1000 Series Technical Manual P321; V1000 Series Technical Manual P251; W1000 Series Quick Start Guide P86
Series: CH700, FP60B, GA500, GA700
Transistor maintenance 50%
drive
Meaning:
Possible causes
Source: CH700 Technical Manual P359; FP60B Technical Manual P201; GA500 Technical Manual P315; GA700 Technical Manual P386
Series: ES700
IGBT maintenance due
drive
Meaning:
Possible causes
Source: ES700 Technical Manual P325
Series: GA501
IGBT Maintenance period (50%)
drive
Meaning:
Possible causes
Source: GA501 Technical Manual P279
Series: L1000A
IGBT Maintenance timing (50%) <2>
drive
Meaning:
Possible causes
Source: L1000A Series Quick Start Guide P119