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Assembly and Commissioning Instructions Servo amplifier D1-N
Figure 9.7: “Auto phase center” – Linear and torque motors with/without Hall sen-
sor
“SM mode” (Stepper Mode) means that the motor is operated with open control
circuit and constantly memorised current.
The “Current (SM-Mode)” value is automatically set to 95 % of the permanent mo-
tor current (peak value, not as RMS).
The motor is energised with this current in the next step. Depending on application,
in some cases a higher current may have to be selected. This may be the case with
e.g. high friction.
This current is also the current with which the motor is energised during any sub-
sequent commutation process (DCBL).
Please ensure that the “Auto phase center” is open before the controller en-
able “Axis Enable” is activated.
Setting the “Axis Enable” input when “Auto phase center” is not open triggers
automatic commutation finding with the set values.
To start the process, the “Axis-Enable” input must first be activated. (If this is
not physically present, enabling can be undertaken by inverting the input in
the “I/O center”.
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