Unidrive M300/HS30 Quick Start Guide 51
Issue Number: 6
OI.br
Braking IGBT over current
detected: short circuit protection
for the braking IGBT activated
Over current has been detected in braking IGBT or braking
IGBT protection has been activated.
Possible cause:
• Check brake resistor wiring
• Check braking resistor value is greater than or equal to the
minimum resistance value
• Check braking resistor insulation
OI.SC Output phase short-circuit Over-current detected on drive output when enabled.
OPt.d
Option module does not
acknowledge during drive mode
changeover
Option module did not acknowledge notifying the drive that
communications with the drive has been stopped during the
drive mode changeover within the allocated time.
Out.P Output phase loss detected Phase loss has been detected at the drive output.
OV
DC bus voltage has exceeded the
peak level or maximum continuous
level for 15 seconds
The OV trip indicates that the DC bus voltage has exceeded the
maximum limit.
Possible solutions:
• Increase Deceleration Rate 1 (Pr 00.004)
• Decrease the braking resistor value (staying above the
minimum value)
• Check nominal AC supply level
• Check for supply disturbances which could cause the DC
bus to rise
• Check motor insulation using a insulation tester
P. dA t
Power system configuration data
error
Contact the supplier of the drive.
Pb.bt Power board is in bootloader mode Power board is in bootloader mode
Pb.Er
Communication has been lost /
errors detected between power
control
Communications loss between power and control.
Pb.HF Power board HF
Power processor hardware fault - contact the supplier of the
drive
Pd.S Power down save error
Error has been detected in the power down save parameters
saved in non-volatile memory.
PH.Lo Supply phase loss
The drive has detected an input phase loss or large supply
imbalance.
PSU Internal power supply fault
One or more internal power supply rails are outside limits or
overloaded.
r.ALL RAM allocation error
Option module derivative image has requested more parameter
RAM than is allowed.
r.b.ht Hot rectifier/brake Over-temperature detected on input rectifier or braking IGBT.
rS
Measured resistance has
exceeded the parameter range
The measured stator resistance during an autotune test has
exceeded the maximum possible value of Stator Resistance.
Refer to the Drive User Guide.
SCL
Control word watchdog has timed
out
The control word has been enabled and has timed out
SL.dF
Option module in option slot 1 has
changed
Option slot 1 on the drive is a different type to that installed
when parameters were last saved on the drive.
SL.Er
Option module in option slot 1 has
detected a fault
Option module in option slot 1 on the drive has detected an
error.
SL.HF Option module 1 hardware fault Option slot 1 on the drive has indicated a hardware fault.
SL.nF
Option module in option slot 1 has
been removed
The option module in option slot 1 on the drive has been
removed since the last power up.
SL.tO
Option module watchdog function
service error
The option module installed in Slot 1 has started the option
watchdog function and then failed to service the watchdog
correctly.
Trip
code
Condition Description
Unidrive M300 Quick Start Guide English Iss6.book Page 51 Tuesday, September 22, 2015 3:21 PM
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