Rapid-Air SMART MINI-SERVO FEED: SMS2, SMS4, SMS8 - Manual (Page 13)

led statUs symbols
Symbol Description
Drive / comms watchdog. Internal communications failure. Clear the error; if the problem persists then
contact Baldor technical support.
Over volts. The DC Bus voltage has exceeded the overvoltage level. Check the AC supply voltage is correct
for the unit. Check the DC Bus level. This should be close to the nominal voltage. If the input voltage is cor-
rect, then this error may be the result of high deceleration rates. If it is not possible to reduce the decelera-
tion rate, then an external regen resistor should be used. To help you determine the cause of this fault, use
the WorkBench v5 Scope tool to monitor the DC Bus level during moves.
Intelligent Power Module (IPM) trip. The IPM has detected an internal overcurrent, short circuit, over tem-
perature or under voltage fault. Clear the error. If the problem persists, contact Baldor Technical Support or
Rapid-Air.
Overcurrent trip. Current has exceeded 300% of Drive Rated Current. Check the motor cable and
connections for short circuits.
Under volts. The DC Bus voltage has fallen below the minimum undervolts level. This error will only be gen-
erated if the drive is in the enabled state. Check the AC supply voltage is correct for the unit. The error could
also occur during high acceleration profiles; to prevent this, reduce the acceleration rate.
Feedback trip. This error indicates loss of encoder/resolver feedback and may indicate that the feedback
cable has become detached, one of the signals has broken, or noise is present. Check the wiring in the
Feedback cable; check the cable screens; check the feedback device fitted to the motor (if possible).
Motor or Drive I 2 T overload. The motor I 2 T or the drive l.T current protection algorithms have exceeded
their limit and disabled the drive.
(Symbol not flashing)
Motor I 2 T / It foldback. Motor I 2 T or Drive I.T algorithm has resulted in the demand current being folded back
to a level where the drive/motor can recover. The motor / drive can run with demand currents greater than
their rated value for a period of time; after that time the drive will either trip or automatically foldback the
demand current.
Overtemperature. The temperature of the drive has exceeded the trip level or the Motor overtemperature
trip input has been activated. Check that the drives internal fans are functioning. Increase ventilation to the
drive or reduce the ambient temperature.
Drive enabled. The drive is enabled.
Torque mode. The drive is in Torque mode.
Hold to Analog. The axis is in Hold To Analog mode.
Auto tune test driving motor. Autotune is active and driving the motor. warning! The motor shaft may move.