Omron CP1L - 12-2007, Руководство по эксплуатации

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185
Pulse Outputs
Section 5-2
5-2-4 Pulse Output Patterns
The following tables show the kinds of pulse output operations that can be
performed by combining various pulse output instructions.
Continuous Mode (Speed Control)
Starting a Pulse Output
Changing Settings
Operation Example
application
Frequency changes Description Procedure
Instruction Settings
Output with
specified
speed Changing the
speed (frequency)
in one step Outputs pulses at a
specified frequency. SPED(885)
(Continuous) • Port
“CW/CCW”
or “Pulse +
direction”
• Continuous
• Target fre-
quency
Output with
specified
acceleration
and speed Accelerating the
speed (frequency)
at a fixed rate Outputs pulses and
changes the fre-
quency at a fixed
rate. ACC(888)
(Continuous) • Port
• “CW/CCW”
or “Pulse +
direction”
• Continuous
• Accelera-
tion/decel-
eration rate
• Target fre-
quency
Pulse frequency
Target frequency
Execution of SPED(885)
Time
Pulse frequency
Target frequency
Acceleration/
deceleration
rate
Execution of
ACC(888)
Time
Operation Example applica-
tion
Frequency changes Description Procedure
Instruction Settings
Change
speed in
one step Changing the
speed during oper-
ation Changes the fre-
quency (higher or
lower) of the pulse
output in one step. SPED(885)
(Continu-
ous)
↓
SPED(885)
(Continu-
ous)
• Port
• Continuous
• Target fre-
quency
Change
speed
smoothly Changing the
speed smoothly
during operation Changes the fre-
quency from the
present frequency
at a fixed rate. The
frequency can be
accelerated or
decelerated. ACC(888) or
SPED(885)
(Continu-
ous)
↓
ACC(888)
(Continu-
ous)
• Port
• Continuous
• Target fre-
quency
• Accelera-
tion/decel-
eration rate
Changing the
speed in a polyline
curve during opera-
tion Changes the accel-
eration or decelera-
tion rate during
acceleration or
deceleration. ACC(888)
(Continu-
ous)
↓
ACC(888)
(Continu-
ous)
• Port
• Continuous
• Target fre-
quency
• Accelera-
tion/decel-
eration rate
Change
direction Not supported.
Change
pulse out-
put method Not supported.
Pulse frequency
Target frequency
Present frequency
Execution of
SPED(885)
Time
Pulse frequency
Target frequency
Present frequency
Acceleration/
deceleration
rate
Execution of
ACC(888)
Time
Pulse frequency
Target frequency
Present frequency
Acceleration rate n
Acceleration
rate 2
Acceleration
rate 1
Execution of ACC(888)
Execution of ACC(888)
Execution of ACC(888)
Time