48 Commander SK Getting Started Guide
www.controltechniques.com Issue Number: 9
** These trips cannot be reset for 10 seconds after they occur.
See the
Commander SK Advanced User Guide
for further information on possible causes of drive trips.
Table 8-1 DC bus voltages
Table 8-2 Alarm warnings/Display indications
Drive voltage rating UV Trip UV Reset Braking level OV trip**
110V 175 215 * 390 415
200V 175 215 * 390 415
400V 330 425 * 780 830
* These are the absolute minimum DC voltages the drives can be supplied by.
** The drive will trip on OV if the DC Bus goes above the OV trip level.
Display Condition Solution
OVL.d
I x t overload (I = current, t = time) Reduce motor current (Load)
hot
Heatsink/IGBT temperature high Reduce ambient temperature or reduce motor current
br.rS
Braking resistor overload See Menu 10 in the Commander SK Advanced User Guide
AC.Lt
Drive is in current limit See Menu 10 in the Commander SK Advanced User Guide
FAIL
Failed attempt to read stick
An attempt has been made to read the stick when the drive
was not disabled or tripped, or the stick is read-only.
If no action is taken when an alarm warning appears, the drive will trip on the appropriate fault
code.
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