Lenze starttec E71MM402 Instructions De Montage page 134

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Troubleshooting
Error messages
Display Fault
1)
Keypad PC
Er252
252 Fault in mains
A
phase
(is generated only if
C0122 = −0−)
Er253
253 Fault in mains
e
phase
(is generated only if
C0122 = −1−)
Er254
254 Fault in wiring at
A motor side
Er255
255 Error in power
A section
OC9
19
A
LP1
32 Mains failure
A
OC1
11 Short circuit
A
OC6
16 starttec overload
A
OC6
16 Overload of motor 1
A
(is generated only if
C0123 = −0−)
Er248
248 Overload of motor 1
e
(is generated only if
C0123 = −1−)
OC7
17 Overload of motor 2
A
(is generated only if
C0123 = −0−)
Er250
250 Overload of motor 2
e
(is generated only if
C0123 = −1−)
OH
50 Housing
A
temperature
> +80 °C
− Housing
temperature
> +75 °C
134
Cause
l Mains phases at the
connection terminals are
reversed (incorrect direction
of rotation)
Failure of one/several mains
l
phases
Short circuit in motor phases
Overvoltage, e.g. through
l
lightning
l Mains phases in connection
terminals reversed
Voltage at X1/L1, L2, L3
< 100 VAC
Short circuit
l
l Overcurrent (8 × I )
N
2
starttec overloaded (I t overload)
because output current > 9.5 A
2
Motor overloaded (I t
l
overload) through
impermissible continuous
current
Rated motor current
l
incorrectly set in C0120
Ambient temperature
> +60 °C
T
u
Very dirty heat sink
Excessive currents or frequent
and extended acceleration
operations
EDK71MMXXX−020 DE/EN/FR 5.0
Remedy
l Connect mains cable in correct
phase relation
Check mains cable
l
Correct wiring
Replace starttec
l
l Connect mains phases in correct
phase relation
Check mains voltage
l
Check fuses
l
Find cause of short circuit; check
l
motor cable
Check brake
l
Check drive dimensioning
Check drive dimensioning
l
Check setting of C0120
l
Let starttec cool off and ensure
l
improved cooling
Lower ambient temperature
l
Clean heat sink
l Check drive dimensioning
Check load, replace sluggish
l
defective bearings, if necessary
L