Eaton XN300 - Page 273

34 DC motor driver module XN-322-1DCD-B35
34.3 Wiring topic
269 XN300 slice modules 02/24 MN050002EN Eaton.com
Each period must start with the Motor Off state. As a general rule, sequence
times 1 to 4 only describe the time response when there is an edge
transition from LOW to HIGH. If a period duration that is shorter than the
LOW sequence time is selected, the motor will stop. Period durations that
are longer than the start time for the HIGH sequence will control the motor
power, with the state remaining for the rest of the period duration.
Enable
The enable signal is activated with motor control object 0x20E7, bit 0. The
output sequence will not be applied at the M+ / M- motor output until this
enable signal is active. Once the enable signal has been activated, the
relevant parameters will change directly as required for the output signal for
the motor, M+, M-.
Defining the period duration
The period duration is determined based on the time value stored in object
0x20E4 and the system clock frequency (32 MHz).
In turn, the period duration is used to determine the fundamental frequency.
Period duration =
Time value register entry (16-bit)
System clock frequency
Fundamental frequency =
1
Period duration