6
Service
Fault messages and list of faults
Compact Operating Instructions – MOVIDRIVE
®
MDX60B/61B
27
Fault
Subfault
Code Designation Response
(P)
Code
Designation
Possible cause
Measure
14
Encoder
Immediate
stop
0
Encoder not connected,
defective encoder, defect-
ive encoder cable
• Encoder cable or shield not
connected correctly.
• Short circuit / broken wire in
encoder cable
• Encoder is defective.
• When 2 inverters are con-
nected via X14 and P505 is
set to YES F14 SubC 27.
• Check encoder cable and
shield for correct connec-
tion, short circuit and
broken wire
25
Encoder fault X15 –
Speed range exceeded
Encoder exceeds
6542 min
-1
26
Encoder fault X15 – Card
is defective
Fault in the quadrant eval-
uation.
27
Encoder fault – encoder
connection or encoder is
defective
28
Encoder fault X15 – Com-
munication fault RS485
channel
29
Encoder fault X14 – Com-
munication fault RS485
channel
• Encoder cable or shield not
connected correctly.
• Short circuit / broken wire in
encoder cable
• Encoder is defective.
• When 2 inverters are con-
nected via X14 and P505 is
set to YES F14 SubC 27.
• Check encoder cable and
shield for correct connec-
tion, short circuit and
broken wire
30
Unknown encoder type at
X14/X15
31
Plausibility monitoring fault
Hiperface
®
X14/X15
Increments have been lost
32
Encoder fault X15
Hiperface
®
Hiperface
®
encoder at X15
signals a fault
33
Encoder fault X14
Hiperface
®
Hiperface
®
encoder at X14
signals a fault
34
Encoder fault X15 resolver
– Encoder connection or
encoder is faulty
17
System fault
Immediate
stop
0
"Stack overflow" fault
Inverter electronics disrupted,
possibly due to EMC influences
• Check grounding and
shielding and improve, if
necessary
• Consult SEW Service if the
fault occurs again.
18
"Stack underflow" fault
19
"External NMI" fault
20
"Undefined opcode" fault
21
"Protection fault"
22
"Illegal word operand ac-
cess" fault
23
"Illegal instruction access"
fault
24
"Illegal external bus ac-
cess" fault
25
EEPROM
for rapid stop 0
Read or write fault on
EEPROM power section
Access to the EEPROM of the
memory card has failed
• Restore factory settings,
perform reset and reset pa-
rameters.
• Consult SEW service if the
fault reoccurs
• Replace memory card
11
NV memory read fault
NV-RAM inside the unit
13
NV memory chip card
memory module defective
14
NV memory chip card
memory card defective
16
NV memory initialization
fault
26
External ter-
minal
Emergency
stop (P)
0
External terminal
Read external fault signal via
programmable input
Eliminate respective cause;
reprogram terminal if neces-
sary
24770531/EN – 11/2017
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