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Wiring the FM 453
Step Drives
Output signals:
One pulse, one directional and one enable signal are provided for each chan-
nel as true and negated signals. In addition, one additional signal per channel
can be parameterized for current generation.
4-8
PULSE
The clock pulses control the motor. The motor executes one increment in
response to each rising pulse edge.
This means that the number of pulses which are output determines the
angle of rotation, i.e. the distance to be traversed.
The pulse frequency determines the speed of rotation, i.e. the traversing
speed.
DIRECTION
The signal levels which are output determine the direction of rotation of
the motor.
Signal ON:
"Rotation to left"
Signal OFF:
"Rotation to right"
ENABLE
The FM 453 activates this signal anytime the cyclical control operating
mode is detected.
Signal ON:
Power activation is enabled
Signal OFF:
Power activation is disabled, motor is current-free
PWM / BOOST
This signal is for purposes of altering the motor current.
In the "PWM" function, a pulse width modulated signal is output which
can be used to adjust the motor current between 0 and 100%.
The "BOOST" function can be used to amplify the motor current:
Signal ON:
Motor current increases
Signal OFF:
Motor current normal
Parameters are assigned to this signal in the machine data (see MD37,
Section 5.3.1).
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
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