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Operational Overview
Analog Command Input
The Analog Command Input can be used as a velocity or torque command. The drive accepts
a ±10 VDC differential analog command on pins 14 and 15 of the Command Connector and
has 14 bits of resolution.
The Analog Inputs Bandwidth, Analog Full Scale and Analog Input Zero Offset parameters
are applied to the Analog Input to generate either an analog velocity or torque command.
These three parameters can be edited using PowerTools FM, a FM-P or serially using
Modbus.
Bandwidth
The value of the parameters sets the Low Pass Filter cutoff frequency applied to the analog
command input. Signals that exceed this frequency are filtered at a rate of 20 dB/decade.
Analog Full Scale
This parameter specifies the full scale voltage for the analog input. When the drive receives
an analog command input equal to the Analog Input Full Scale parameter, the drive will
command either Full Scale Velocity or Full Scale Torque depending on the operating mode.
Analog Zero Offset
Analog Input Zero Offset is used to null any input voltage that may be present at the drive
when a zero velocity or torque is commanded by a controller. The amount of offset can be
read with PowerTools FM software using the following procedure:
1. Provide the zero velocity command to the analog command input on the command
connector.
2. Read the Analog Input Value.
3. Enter the Analog Input Value in the Analog Input Zero Offset.
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Содержание Control Techniques EN Series
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