12 Pulse Outputs
12-64
CP2E CPU Unit Software User’s Manual(W614)
12-11Pulse Output Pattern
The CP2E CPU Unit’s pulse output function enables operation in Continuous Mode, for which the num-
ber of output pluses is not specified, or in Independent Mode, for which the number of output pulses is
specified. Continuous Mode is used for speed control and Independent Mode is used for positioning.
The following operations can be performed in Continuous Mode by combining instructions.
12-11-1 Speed Control (Continuous Mode)
Starting a Pulse Output
Operation
Example
application
Frequency changes Description
Procedure
Instruction Settings
Output with
specified
speed
Changing the
speed (fre-
quency) in one
step
Outputs
pulses at a
specified
frequency.
SPED
(Continuous)
• Port
• Pulse + direction
• Continuous
• Target frequency
Output with
specified
acceleration
and speed
Accelerating the
speed
(frequency) at a
fixed rate
Outputs
pulses and
changes the
frequency at a
fixed rate.
ACC
(Continuous)
• Port
• Pulse + direction
• Continuous
• Acceleration/
deceleration rate
• Target frequency
Changing Settings
Operation
Example
application
Frequency changes Description
Procedure
Instruction Settings
Change
speed in one
step
Changing the
speed during
operation
Changes the
frequency
(higher or
lower) of the
pulse output
in one step.
SPED
(Continuous)
↓
SPED
(Continuous)
• Port
• Continuous
• Target frequency
Change
speed
smoothly
Changing the
speed smoothly
during operation
Changes the
frequency
from the
present fre-
quency at a
fixed rate. The
frequency can
be acceler-
ated or decel-
erated.
ACC or
SPED
(Continuous)
↓
ACC
(Continuous)
• Port
• Continuous
• Target frequency
• Acceleration/
deceleration rate
Pulse frequency
Target frequency
Execution of SPED
Time
Pulse frequency
Target frequency
Execution of ACC
Time
Acceleration/
deceleration
rate
Pulse frequency
Target frequency
Present frequency
Execution of SPED
Time
Pulse frequency
Target frequency
Present frequency
Execution of ACC
Time
Acceleration/
deceleration
rate
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