Troubleshooting and fault elimination
Error messages
2
l
EDKVF9333 EN 1.0
Display RemedyCauseError
OC2 Earth fault One of the motor phases has an earth contact
Excessive capacitive charging current in the motor cable
Check motor; check cable
Use motor cable which is shorter or has a lower
capacitance
OC3 Trip due to overload Acceleration and/or deceleration too short (C0012, C0013) Increase acceleration and deceleration times
Value for current parameter V
p
(C0075) to low Check setting
OC5 I x t overload acceleration with overcurrent is to frequent and too long
Continuous overload with I
motor
> 1.5 x I
rx
Check drive dimensioni ng
OH Heat sink temperature is
higher than the value set
in the controller
Ambient temperature
T
amb
> 40 °C or 50 °C
Allow controller to cool and ensure better ventilation
Check ambient tempera ture in the control cabi net
Heat sink very dirty Clean heat sink
Incorrect mounting position Change mounting position
OH3
1)
Motor temperature is
higher than the value set
in the controller
Motor too hot because of excessive current, or acceleration
is too frequent and too long
Check drive dimensioni ng
No PTC connected to X7 or X8 Connect PTC or switch off monitoring (C0583=3)
OH4 Heat sink temperature is
higher than the value set
under C0122
Ambient temperature
T
amb
> 40 °C or 50 °C
Allow controller to cool and ensure better ventilation
Check ambient tempera ture in the control cabi net
Heat sink very dirty Clean heat sink
Incorrect mounting position Change mounting position
Value set under C0122 was too low Enter higher value
OH7
1)
Motor temperature is
higher than the value set
under C0121
Motor too hot because of excessive current, or acceleration
is too frequent and too long
Check drive dimensioni ng
No PTC connected to X7 or X8 Connect PTC or switch off monitoring (C0584=3)
Value set under C0121 was too low Enter higher value
OH8 PTC at terminals T1, T2
indicates motor
overheating
Motor too hot because of excessive current, or acceleration
is too frequent and too long
Check drive dimensioni ng
Terminals T1, T2 are not assigned Connect PTC or thermostat or switch off monitoring
(C0585=3)
OU Overvoltage Excessive braking energy (DC bus voltage higher than the
value set under C0173)
Use brake unit or supply module and brake module or
feedback module
PEr Program fault A fault in the program was detected Send controller with data (on diskette) to Lenze
PI Initializing error A fault was detected during the parameter set transfer
between the drive controllers
Parameter set does not ma tch the controller
Correct parameter set
PR0
PR1
PR2
PR3
PR4
Parameter set error Fault when reading a parameter set
CAUTION:
•
The factory setting is loaded automatically
Set the desired parameters and save under C0003.
For PRO, the supply voltage must be switched off as well
Sd3 Encoder fault at X9/8 Cable interrupted
Input X9 PIN 8 not assigned
Check cable for open circuit
Assign input X9 PIN 8 with 5V or switch off monitoring
(C0587 = 3)
Sd5 Master current source
defective
Master current at X6/1, X6/2 < 2mA Check cable for open circuit
Check master current source
Sd6 Sensor fault Encoder of the motor temperature detection at X7 ot X8
indicates undefined values
Check supply cable for firm connection
Switch off monitoring with C0594 = 3 if necessary
1)
Temperature sensing through incremental encoder X8
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - e.mail: info@ctiautomation.net
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