Rockwell Automation 1336 3-20HP FRN 1.01-3.01 - Manual (Page 94)

Fault Codes
Chapter 10
10-3
Motor Stalled
Freq P R
Indicates that the drive has not been able to change output frequency for:
4 seconds for drives with Base Driver/Power Supply Board Firmware
Versions 1.11, 1.13, 1.14 or 2.01.
10 seconds for drives with Base Driver/Power Supply Board Firmware
Versions 1.01.
Conditions sensed are:
Excessive Current
The motor is drawing excessive current (over 150%). The motor load is
excessive and will not allow the drive to accelerate to set speed. A longer
accel time or a reduced load may be required.
Bus Voltage Rise
The bus voltage has risen to 110% of nominal bus voltage. This indicates a
regeneration condition that will not let the drive decelerate to a lower
frequency. A longer decel time or dynamic braking may be required.
Motor Overload
Freq P R
The drive output current has exceeded the % of current set by Overload
Current Parameter 38 for some period of time. The time is dependent on
the level of current above the set value. The fastest time is 150% of
Parameter 38 for one minute. This indicates an excessive motor load that
must be reduced to the value programmed by Parameter 38.
Over Temperature
Freq P R
Drive logic has detected an open temperature switch on the drive heatsink
indicating that drive heatsink temperature is above 100
°
C. Check for
blocked or dirty heatsink fins. Check that the ambient temperature has not
exceeded 40
°
C. For B010 or C010 units and larger units, check the
operation of the drive cooling fan.