7-27
Section
Pulse Output Instructions
493
In independent mode, just the number of output pulses set by PULS(65) will be
output. The number of output pulses must be specified by executing PULS(65)
before executing ACC(––). (Pulses won’t be output if the number of output
pulses has not been specified in advance.)
Pulse frequency
Time
The number of output pulses must be specified again with PULS(65) each time
that the pulse output has been stopped.
In independent mode, the pulse output will begin decelerating at the point deter-
mined by the preset number of output pulses and the acceleration/deceleration
rates. The pulse output will stop when the preset number of output pulses has
been output.
Pulse frequency
Time
(The number of output pulses is always accurately output.)
If the number of output pulses required for acceleration and deceleration (the
time to reach the target frequency
×
the target frequency) exceeds the preset
number of pulses, the acceleration and deceleration will be cut short and the
pulse output will be triangular rather than trapezoidal.
Pulse frequency
Time
(The number of output pulses is always accurately output.)
If a high acceleration/deceleration rate and a low number of output pulses are
set, there will be effectively no acceleration and deceleration. (The pulse output
will operate at a constant speed.)
If the (target frequency
÷
acceleration/deceleration rate) is not an integer value,
the specified acceleration/deceleration rates will be increased or decreased. In
the following example, the acceleration and deceleration are 10-ms long, (1) is
the acceleration/deceleration rate, and (2) is the target frequency.
Pulse frequency
Time
10 ms
10 ms
Operation in Independent
Mode
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