Yaskawa oH4 fault code meaning
Yaskawa / oH4
Series: A1000, L1000A, U1000, W1000
Motor overheat fault (PTC input)
drive
Meaning:
Possible causes
Source: A1000 Series Quick Start Guide P108; L1000A Series Quick Start Guide P117; U1000 Series Technical Manual P353; W1000 Series Technical Manual P266
Series: CH700, GA501, GA700
Motor overheat warning 2 (PTC input)
drive
Meaning:
Possible causes
Source: CH700 Technical Manual P349; GA501 Technical Manual P269; GA700 Technical Manual P374
Series: ES700, FP60B
Motor overheat fault (PTC)
drive
Meaning:
Possible causes
Source: ES700 Technical Manual P316; FP60B Technical Manual P193
Series: GA500
Motor overheat warning
drive
Meaning:
Possible causes
Source: Textile Application GA500 Supplementary Manual P48
Series: H1000, T1000V, V1000
Motor overheat warning 2 (PTC input)
drive
Meaning:
Possible causes
Source: H1000 Series Technical Manual P320; T1000V Series Technical Manual P233; V1000 Series Technical Manual P243