Panasonic FPG Series Technical Manual page 13

FP∑ Positioning Unit Glossary
Glossary
E point control
This is a method of control which is initiated up to an end point, and in this manual is referred to as
"E point control". This method is used for a single - speed acceleration/deceleration.
P point control
This refers to control which passes through a "Pass Point", and is called "P point control" in this
manual. This method is used when a multi - stage target speed is to be specified.
Startup time
This is the time from when the startup signal is output from the CPU of the FP∑ to when the pulse
output is issued from the positioning unit.
Acceleration/deceleration time
Acceleration time: the time during which the speed changes from the startup speed to the target
speed after the pulse output is issued.
Deceleration time: the time during which the speed changes from the target speed to the startup
speed.
CW, CCW
Generally, these indicate the direction in which the motor is rotating, with CW referring to clockwise
rotation and CCW to counterclockwise rotation.
CW/CCW output method (2-pulse output method)
This is a method in which control is carried out using two pulses, a forward rotation pulse and a
reverse rotation pulse. With the FP∑ positioning unit, this is specified using the control codes of the
shared memory according to the driver specifications.
Pulse/Sign output method (1 pulse output method)
This is a method in which control is carried out using one pulse to specify the speed and ON/OFF
signals to specify the direction of rotation. With the FP∑ positioning unit, this is specified using the
control codes of the shared memory according to the driver specifications.
Absolute method (absolute value control method)
This is a control method in which the target position is specified as an absolute position from the
home position. With the FP∑ positioning unit, this is specified in the user program, using the control
codes and the position command values (see Chapter 6.1.3 "Shared memory settings.")
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