33
7.2.9 “I
2
t” default
• Check the continuous current value required with regard to the table of currents authorized in pulse
mode cycle (see chapter 2.1.0).
• Check the continuous current of the amplifier defined in the Rated current parameter with regard of
the current required for the operation cycle.
7.3.0 Operating problems
7.3.1 No motor movement
• Check that the power supply is on.
• Check the amplifier fuses (F1 and F2) and the motor connection.
• Check the logic wiring of the signals FC+, FC- and ENABLE (see chapter 8.4.0).
7.3.2 Motor movement, but no torque
• Check that the Maximum current and Rated current parameters have no zero value.
• Check that the amplifier is not operating in torque mode (CI command active on X4) with zero input
command.
7.3.3 Shaft locked, erratic oscillations or rotation at maximum speed
• Check that the PULSE INPUT MODE is disabled in the Advanced functions menu (see chapter
5.4.4).
• Check that the proper motor is chosen in the MOTOR LIST module.
• Check the resolver wiring on the X1 connector and the mechanical mounting of the resolver on the
motor.
• Check the value of the MOTOR PARAMETERS in the ADVANCED FUNCTIONS menu and
execute the AUTOPHASING command again, with uncoupled motor, if necessary (see chapter
6.3.0).
7.3.4 Erratic motor rotation with zero torque positions
• Check the connection of the three phase cables between motor and amplifier.
7.3.5 Motor drift with analog input command at zero speed
• Check that the input command wiring between the controller and the amplifier corresponds to the
recommendations of chapter 4.2.3 (CV at diff. low of the NC and 0 Volt cable).
• Check the offset compensation and, if necessary, execute the Offset compensation command.
7.3.6 Loud crackling noise in motor at standstill
• Check that the motor-amplifier-controller ground connections correspond to the recommendations of
chapter 4.0.0.
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