64
Operating Instructions – MOVIFIT® basic
8
Diagnostics with LT-BG operator terminal
Service
8 Service
8.1 Diagnostics with LT-BG operator terminal
The following table helps you with troubleshooting:
Fault Cause Solution
Overload or overcurrent error of the
unloaded motor during acceleration
• Check the star/delta terminal connection in the
motor.
The nominal operating voltages of motor and
MOVIFIT
®
basic must match.
Delta connection always yields the lower voltage of
a multi-voltage motor.
Overload or
overcurrent
Motor axis is
blocked
• Check whether the rotor of the motor is blocked.
• Make sure that the mechanical brake is released (if
installed).
Display remains on "StoP"
Drive not enabled
• Check whether the enable signal from the higher-
level controller is present.
• Make sure the M12 connectors are plugged in cor-
rectly.
• Check the parameter P1-12 for terminal con-
trol/manual operation.
• Press the <Start> key while in manual mode. The
line voltage must correspond with the specified val-
ues.
The drive does
not start in very
cold environ-
ments
Ambient tempera-
ture below −10 °C
• Provide for a heat source that keeps the ambient
temperature of the drive above -10 °C.
Drive does not run properly in vector
mode.
• You must set the parameters P1-07, P1-08, and
P1-09 according to the data on the motor name-
plate before starting the auto-tune process.
• Start auto-tune by setting P4-02 = "1".
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