8-11 Pulse Output Patterns; Speed Control (Continuous Mode) - Omron SYSMAC CJ Series User Manual

8-11 Pulse Output Patterns

The pulse output function of the Pulse I/O Module enables operation in Continuous Mode, for which the
number 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 posi-
tioning.

8-11-1 Speed Control (Continuous Mode)

The following operations can be performed in Continuous Mode by combining instructions.
Starting a Pulse Output
Example
Operation
application
Output with Changing the
specified speed (fre-
speed quency) in one
step
Output with Accelerating the
specified speed (fre-
acceleration quency) at a
and speed fixed rate
Changing Settings
Example
Operation
application
Change Changing the
speed in one speed during
step operation
CJ2M CPU Unit Pulse I/O Module User's Manual
Frequency changes
Pulse frequency
Target frequency
SPED instruction executed
Pulse frequency
Target frequency
Acceleration/
deceleration
rate
ACC instruction executed.
Frequency changes
Pulse frequency
Target frequency
Present frequency
SPED instruction executed
Function
Instructions
Outputs SPED
pulses at a (Continuous)
specified fre-
quency.
Time
Outputs ACC
pulses and (Continuous)
changes the
frequency at a
fixed rate.
Time
Function
Instructions
Changes the SPED (Con-
frequency tinuous)
(higher or
↓
lower) of the
SPED (Con-
pulse output
tinuous)
Time
in one step.
8 Pulse Outputs
Procedure
Settings
• Port
• Pulse + direction
• Continuous
• Target frequency
• Port
• Pulse + direction
• Continuous
• Acceleration/
deceleration rate
• Target frequency
Procedure
Settings
• Port
• Continuous
• Target frequency
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