Fault Codes Motors

Motors		Mechanical / motors		Other
MA	motor	70	balance	93	Wear
MB	brake	71	fit/play	94	Endat ECN 1313
MC	terminal box / flange box	72	sealing ring	95	Endat EQN 1325
MD	connectors	73	bent / worn / dented	96	-
ME	encoder	74	loose / detached	97	No/wrong packaging
MG	gearing/clutch	75	charred / burnt out	98	No fault found
MH	fan, housing	76	rotor / shaft	99	described error not determined
MI	pulse/incremental encoder	77	stator / lamination	00	other
MK	terminal panel	78	cogging
ML	bearing	79	wire break / open circuit
MM	motor mechanics	80	destroyed / torn / broken
MN	bearing plate	81	B-side
MO	commutator / brushes	82	A-side
MR	resolver	83	housing
MS	thermostat	84	-
MT	tachometer / halls	85	paint / surface
MÜ	fan	86	damage
MV	housing	87	ground fault (short)
MW	motor winding	88	winding fault
MF	no fault found	89	magnets
MY	other	90	lost parts inside the motor
MJ	rotor	91	noise / resonance (no load)
		92	replacement
Fault causes
General faults		Customer fault		Manufacturing fault
F	part missing	K1	connection fault	H0	KVP
FF	effective error	K2	wrong usage	H2	faulty assembly
W	mistaken/wrong part	K3	contamination	H3	out of tolerance
M	not properly assembled	K4	overheating	H4	wrong module / controller type
D	material defect	K5	faulty application	H5	wrong component
N	no details	K6	attempted/faulty repair	H6	coding, setting, basic adjustment
S	other	K9	other	H7	circuit diagram / component layout
T	transport damage	K10	faulty assembly	H8	other documents / nameplate
U	Rebuilding , customer's request			H9	other
Repair operation		Procedure		Cost center
Düsseldorf		R	return	G	warranty
S0	faulty repair	MW	maintenance	K	fair dealing
S9	other	U	rebuild	B	to be invoiced
		ER	external repair
Brno		E	replacement,
B0	faulty repair	EN	- because irreparable
B9	other	EV	- precautionary, not ex-gratia
		W	goods inwards test
		V	precautionary
		X	irreparable / scrap
		LU	unrepaired / back to customer
		Y	other

Note: If the fault designation OTHER is used, an additional description is always required.