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Error code Description of error Cause Item to be checked
E971 Protection of the cloth
puller motor against IPM
overcurrent
• Cloth puller motor maloperation.
E972 Cloth puller presser motor
overload error
• Load applied to the cloth puller
presser motor is excessively
large.
• Check whether the cloth puller presser motor
runs smoothly.
E973 Protection of the cloth
puller motor against IPM
overcurrent
• Cloth puller motor maloperation.
E974 Cloth puller motor over-
load error
• Load applied to the cloth puller
motor is excessively large.
• Check whether the feed driving motor runs
smoothly.
E975 Presser foot motor over-
current error
• Presser motor maloperation.
E976 Presser foot motor over-
load
• In the case the presser motor is
applied with an excessive load.
• Check whether the presser motor runs
smoothly.
E977 CPU fault • In the case the program is faulty.
E978 Network communication
fault
• Data received from the network
has broken.
E985 Cloth puller presser motor
origin retrieval error
• In the case the cloth puller
presser motor has failed to
travel to its origin.
• Check whether the cloth puller presser motor
runs smoothly.
E999 Main software rewriting • In the case the software has
been rewritten.
• This is not an error.
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