Baldor VS1STS Series Installation & Operating Manual page 52

Fault Code
Factory Default Parameters Have

Been Loaded
Instantaneous Over Current on Drive
Output

Excess Load on the Motor

Over Temperature on the Drive
Heatsink
Drive Has Tripped on Overload After
Delivering >100% of Value in P1-02
. 
for a Period of Time
Brake Circuit Over Current

 Brake Resistor Overload
 Fast Over Current Trip
. Over Voltage on DC Bus
Under Voltage on DC Bus
.
 Heatsink Over Temperature
 Under Temperature
9-2 Troubleshooting
Table 9-1 Fault Descriptions and Corrective Actions
Description Corrective Action
Press STOP key, drive is ready to configure for particular
application.
If the fault occurs immediately when enabling the drive, disconnect
the motor cable from the output terminals of the drive and restart
the drive. If the fault re-occurs with no motor connected, contact
your Baldor District Office. If the drive runs correctly without motor
connected, check the motor, motor cable and any connections
or junction boxes for phase – phase and phase – earth short
circuits. Wherever possible, motors and connection cables should
be checked with a high voltage insulation tester (Megga) prior to
connection to the drive.
Ensure that no switching devices, such as contactors or local
isolators are switching during operation of the drive.
Check the motor cable length does not exceed the specified
maximum.
Ensure the motor nameplate parameters are correctly entered, P1-
01, P1-02, P1-03. If operating in Vector mode (P4-01 – 0 or 1), also
check the motor power factor in P4-05.
Ensure an autotune has been successfully completed for the
connected motor.
Check the load mechanically for a jam or stalled condition, or
shock loads.
Increase the ramp up time in P1-10.
If operating in Vector mode (P4-01 – 0 or 1), reduce the speed loop
gain in P4-03.
Check to see when the decimal points are flashing (drive in
overload) and either increase acceleration rate or reduce the
load. Check motor cable length is within spec. Ensure the motor
nameplate parameters are correctly entered, P1-01, P1-02, and
P1-03. If operating in Vector mode (P4-01 – 0 or 1), also check
the motor power factor in P4-05. Ensure an autotune has been
successfully completed for the connected motor. Check the load
mechanically to ensure it is free, and no jams, blockages or other
mechanical faults exist.
Check the cabling to the brake resistor. Check the brake resistor
value. Ensure minimum resistance values from the rating tables are
observed.
Brake resistor overload. Increase deceleration time, reduce load
inertia or add further brake resistors in parallel, observing the
minimum resistance value for the drive in use.
Check wiring to motor, look for Phase to Phase or Phase to Earth
short circuit. Check drive temperature, additional space or cooling
needed?
Check drive is not forced into overload.
Supply problem, or increase decel ramp time P1-11.
This occurs routinely when power is switched off. If it occurs during
running, check power supply voltage.
Check drive ambient temp.
Additional space or cooling required.
Trip occurs when ambient temperature is less than -10°C.
Temperature must be raised over -10°C in order to start the drive.
MN767S