Causes and remedies, 9300 servo plc, Appendix – Lenze DDS Target 9300 Servo PLC V8.x User Manual
Page 117: 4 causes and remedies
9300 Servo PLC
Appendix
3−111
L
9300 Servo PLC EN 5.1
3.5.4
Causes and remedies
Fault message
Description
Cause
Remedy
No.
Display
−−−
−−−
No fault
−
−
0011
OC1
Short circuit of motor cable
Short circuit
·
Search for cause of short circuit.
·
Check motor cable.
Excessive capacitive charging current in the
motor cable.
Use motor cable which is shorter or of
lower capacitance.
0012
OC2
Motor cable earth fault
One of the motor phases has earth contact.
·
Search for cause of short circuit.
·
Check motor cable.
0015
OC5
I x t overload
·
Frequent and too long acceleration with
overcurrent
·
Continuous overload with I
motor
> 1.05 x
I
rx.
Check drive dimensioning.
0016
OC6
I
2
x t overload TRIP (motor, C0120)
Current overload of the motor, e.g. due to:
·
frequent or too long acceleration
processes
·
impermissible continuous current
·
Check drive dimensioning.
·
Check setting of C0120.
x018
OC8
I
2
xt overload advance warning
·
Frequent and too long acceleration
processes with motor overcurrent.
·
Permanent motor overload with
I
motor
>I
rmotor
Check drive dimensioning.
1020
OU
Overvoltage in DC bus
Braking energy is too high.
(DC−bus voltage is higher than set in
C0173.)
·
Use braking unit or regenerative module.
·
Check dimensioning of the brake
resistance.
1030
LU
Undervoltage in the DC bus
DC bus voltage is lower than specified in
C0173.
·
Check mains voltage
·
Check supply cable
x032
LP1
Motor phase failure
A current−carrying motor phase has failed.
·
Check motor.
·
Check motor cable.
·
Switch off monitoring (C0597 = 3).
The current limit value is set too low.
·
Set higher current limit value via C0599.
0050
OH
Heatsink temperature > +90
°C
Ambient temperature
T
u
> +40
°C or > +50 °C
·
Allow module to cool and ensure better
ventilation.
·
Check ambient temperature in the
control cabinet.
Heatsink is very dirty.
Clean heatsink.
Wrong mounting position
Change mounting position.
x053
OH3
Motor temperature
> +150
°C threshold
(temperature detection via resolver or
incremental value encoder)
Motor is thermally overloaded due to:
·
Impermissible continuous current
·
Frequent or too long acceleration
processes
·
Check drive dimensioning.
·
Switch off monitoring (C0583 = 3).
No PTC/temperature contact connected.
Correct wiring.
x054
OH4
Heatsink temperature > C0122
Ambient temperature T
u
> +40
°C or
> +50
°C
·
Allow module to cool and ensure better
ventilation.
·
Check ambient temperature in the
control cabinet.
·
Switch off monitoring (C0582 = 3).
Heatsink is very dirty.
Clean heatsink
Wrong mounting position
Change mounting position.
The value specified under C0122 is set too
low.
Enter a higher value under C0122.
x057
OH7
Motor temperature > C0121
(temperature detection via resolver or
incremental value encoder)
Motor is thermally overloaded due to:
·
Impermissible continuous current
·
Frequent or too long acceleration
processes
·
Check drive dimensioning.
·
Switch off monitoring (C0584 = 3).
No PTC/temperature contact connected.
Correct wiring.
The value specified under C0121 is set too
low.
Enter a higher value in C0121.
x: 0 = TRIP, 1 = Message, 2 = Warning, 3 = FAIL−QSP