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Operating Instructions – MOVIGEAR® SNI-B
8
Description of power section parameters
Parameters
8.6.3
Drive data
Power section parameters \ drive data \ motor parameters
Operating mode
index 8574.0
The parameter indicates the set operating mode:
• 16 = Servo
• 18 = Servo & IPOS
Direction of rota-
tion reversal
index 8537.0
This parameter is used to activate direction of rotation reversal.
Setting range: ON / OFF:
• OFF: The drive turns CW for a positive setpoint and CCW for a negative setpoint.
• ON: The drive turns CCW for a positive setpoint and CW for a negative setpoint.
If you alter the "Direction of rotation reversal" parameter after the system has been ref-
erenced, the system will lose its reference point for the absolute position. The result may
be undesirable movements of the axis.
PWM frequency
index 8827.0
This parameter is used to set the nominal cycle frequency at the inverter output. The
cycle frequency can change automatically depending on the unit utilization:
• 0 = 4 kHz
• 1 = 8 kHz
Power section parameters \ drive data \ monitoring functions
The following monitoring functions have been implemented to monitor what happens to
drive-specific parameters in the specific application and to be able to react in case of
impermissible deviations. You can set the response to triggered monitoring functions
under "Unit functions/error monitoring".
Speed monitoring
index 8557.0
This parameter is used to activate speed monitoring.
Setting range:
• OFF
• MOTOR MODE
• REGENERAT. MODE
• MOTOR / REGENERATIVE
The speed required by the setpoint can only be achieved if there is sufficient torque
available to meet the load requirements. Once the current limit (index 8518.0) has been
reached, the unit assumes that the torque has reached its maximum and the desired
speed cannot be reached. The speed monitoring function trips if this state persists for
the specified delay time (index 8558.0).
Delay time for
speed monitoring
index 8558.0
This parameter is used to set the delay time for speed monitoring:
• Setting range: 0 – 1 – 10 s
WARNING
Risk of injury due to undesirable movements of the axis.
Severe or fatal injuries.
• Never change the "Direction of rotation reversal" parameter after referencing the
system.
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