Lenze E84AVSCx 8400 StateLine C - Manual (Page 51)

Lenze · 8400 StateLine · Operating instructions · from Firmware V06.00 · DMS 1.2 EN · 12/2012 · TD05
51
7 Diagnostics & troubleshooting
7.5 Error messages
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OC14: Direct-axis current controller
limitation
Direct-axis current controller limitation is
active.
• Observe load requirements.
• Correct dimensioning or reduce
setpoint generation dynamics if
necessary.
OC15: Cross current controller limitation Cross current controller limitation is
active.
• Observe load requirements.
• Correct dimensioning or reduce
setpoint generation dynamics if
necessary.
• Check parameter setting of the current
controller with regard to the motor
controllers (e.g. reduce Vp).
OC16: Torque controller limitation Actuator limitation according to speed
controller.
• Observe load requirements.
• Correct dimensioning or reduce
setpoint generation dynamics if
necessary.
OC17: Clamp sets pulse inhibit Due to a short overcurrent, the inverter
was switched off for a short time (clamp
disconnection).
• Check and, if required, correct
dimensioning of the load with regard
to the installed device power.
• Reduce the dynamics of the setpoint
change or speed control.
OH1: Heatsink overtemperature The heatsink temperature is higher than
the fixed limit temperature (90 ° C).
Maybe the ambient temperature of the
controller is too high or the fan or its
ventilation slots are dirty.
• Check control cabinet temperature.
• Clean filter.
• Clean controller.
• If required, clean or replace the fan.
• Provide for sufficient cooling of the
device.
OH3: Motor temperature (X106) triggered The motor temperature monitoring
function at the plug connector X106,
terminal T1 /T2, has tripped.
Possible causes:
• The motor is overheated so that the
thermal contact integrated into the
motor has been switched.
• An open circuit or a loose contact at the
connections mentioned above has
occurred.
• Check motor temperature monitoring.
• Provide for sufficient cooling of the
motor.
• Check terminals for open circuit or
loose contact.
OH4: Heatsink temp. > shutdown temp. -
5°C
The heatsink temperature now only
differs by 5 °C from the shutdown
temperature of the motor.
Prevent further heating, i.e. reduce motor
load or set controller inhibit so that the
heatsink can cool down again.
OS1: Max. speed limit reached The device has recognised that the
maximum speed has been reached.
• Limit setpoint selection to maximum
values.
• Adjust set speed limitation (C00909)
and frequency limitation (C00910) if
necessary.
OT1: Max. torque reached The device indicates that the maximally
possible torque at the motor shaft has
been reached.
• C00057 displays the current torque.
Reduce motor load.
OT2: Speed controller output limited The output of the speed controller has
reached the internal limit value. In this
state, the speed controller is not able
anymore to correct the system deviation.
• Only with "Closed loop" operation or
vector control (SLVC).
• Observe load requirements.
• Correct dimensioning or reduce
setpoint generation dynamics if
necessary.
OU: DC bus overvoltage The device has detected an overvoltage in
the DC bus. To protect the device
hardware, the inverter control is switched
off.
• If this error message remains active
longer than the time set in C00601, a
"Fault" is tripped.
• Reduce load in generator mode.
• Use a brake resistor.
• Use a regenerative power supply unit.
• Establish a DC-bus connection.
Error message Cause Remedies