Sako SKI600, Manual

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During the driver operation, the common abnormal phenomena and solving actions are as
showed in Table 6-2.
6.2 Abnormal Phenomena Solution
Phenomena Possible reasons of fault and actions to take
motor
not
running
LED no display Check whether there is power failure, or phase loss of input power, check
if the power line is connected correctly.
LED no
display, but
the internal
charging
indicator is on
Check if there is problems with wiring or socket related to keypad.
Measure the voltage of internal control source to check if the switching
power supply is functioning well. If not, check its inlet wire, start
oscillation and stabilivolt to see if they works well.
Motor droning The motor load is too much. Reduce the load.
No abnormal
phenomena
Check if it is in trip status or hasn't reset after tripping, check whether
it is in restart status after power down, whether the keypad is reset,
whether it is in program running status, multi-speed operation status,
some specific operation status or non-operation status. Try recovering
factory set.
Check whether the running command is sent.
Check whether the operation frequency is set at 0.
The motor can not
Acc/Dec successfully
Improper setting of Acc/Dec time. Increase the value of Acc/Dec time.
The current limit is set too low. Increase the value.
Over-voltage protection action during decelerating. Increase the
decelerating time.
Improper setting of carrier frequency, too much load may cause
oscillation.
The load is too heavy, and the torque is not enough. Increase torque
boost value in V/F mode. If not working, switch to auto torque boost
mode, and the motor parameters should be in consistent with the actual
value. If still not working, switch to flux vector control mode, and check
the motor parameters and actual values to see if they are matched,
meanwhile tune the motor parameters.
Mismaching of motor power and driver power. Set the motor parameters
at actual value.
One driver for several motor. Please change the torque boost mode to
manual mode.