Lenze EDK71MMXXX−010 - Manual (Page 129)

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Troubleshooting
Error messages
129
L
EDK71MMXXX−010 DE/EN/FR 5.0
Display Remedy Cause Fault
Keypad PC 1)
Er252
A
252 Fault in mains
phase
(is generated only if
C0122 = −0−) l Mains phases at the
connection terminals are
reversed (incorrect direction
of rotation) l Connect mains cable in correct
phase relation
Er253
e
253 Fault in mains
phase
(is generated only if
C0122 = −1−) l Failure of one/several mains
phases l Check mains cable
Er254
A
254 Fault in wiring at
motor side Short circuit in motor phases Correct wiring
Er255
A
255 Error in power
section l Overvoltage, e.g. through
lightning l Replace starttec
OC9
A
19 l Mains phases in connection
terminals reversed l Connect mains phases in correct
phase relation
LP1
A
32 Mains failure Voltage at X1/L1, L2, L3
< 100 VAC l Check mains voltage
l Check fuses
OC1
A
11 Short circuit l Short circuit
l Overcurrent (8 × I
N
)
l Find cause of short circuit; check
motor cable
l Check brake
OC6
A
16 starttec overload starttec overloaded (I 2 t overload)
because output current > 9.5 A
Check drive dimensioning
OC6
A
16 Overload of motor 1
(is generated only if
C0123 = −0−) l Motor overloaded (I 2 t
overload) through
impermissible continuous
current
l Check drive dimensioning
Er248
e
248 Overload of motor 1
(is generated only if
C0123 = −1−)
OC7
A
17 Overload of motor 2
(is generated only if
C0123 = −0−) l Rated motor current
incorrectly set in C0120 l Check setting of C0120
Er250
e
250 Overload of motor 2
(is generated only if
C0123 = −1−)
OH
A
50 Housing
temperature
> +80 °C Ambient temperature
T
u
> +60 °C
l Let starttec cool off and ensure
improved cooling
l Lower ambient temperature
− Housing
temperature
> +75 °C Very dirty heat sink Clean heat sink
Excessive currents or frequent
and extended acceleration
operations l Check drive dimensioning
l Check load, replace sluggish
defective bearings, if necessary