Fuji Electric micrex-sx NP1F-MP1, User Manual

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5-84
5-3 I/O Area of NP1F-MP2
) d n a m m o c t r a t S : e m a n l a n g i S ( 2 t i B
<Description>
• In the pulse generation mode, the pulse train is output when the rising edge at which this signal changes from “0”
to “1” is detected.
The command pulse zero signal becomes “1” when pulse output ends.
After pulse output has ended, when near-zero is detected, the positioning end signal becomes “1.”
It is possible to write in the command pulse register with the start command signal kept at “1” (Pulse is output after
writing in the command pulse register has ended).
Start command
(PC == > MP2)
Near-zero
(PC <== MP2)
Positioning end
(PC <== MP2)
Command pulse zero
(PC <== MP2)
“1”
“1”
Motor running
“1” “1”
“1” “1” “1”
“1” “1” “1”
“1”
Writing in command pulse register
Writing in command pulse register
Motor running
[For commanding first-read from the FIFO buffer]
• While the start command is “1,” the operation for positioning is started when positioning data is written in the FIFO
buffer.
(Even when the start command is “0,” data can be written in the FIFO buffer.)
• When the command pulse register is “0” and the FIFO buffer is free, the command pulse zero signal becomes “1.”
Because the positioning end signal is “0” while the start command is “1,” check the status of the command pulse
zero signal and near-zero signal to see whether positioning operation has ended or not. When stopped after
decelerating, when emergency stopped, or when an error has been detected, with the start command set to “0,”
monitor until the positioning end signal becomes “1.”
(When the positioning at target point is not completed due to deceleration-and-stop, emergency stop or error stop,
the command pulse zero signal continues to be “0.”)
Precautions:
• The positioning end signal is “1” while pulse output is stopped (motor is stopped).
However, even when pulse output is completed, the positioning end signal continues to be “0” while the start
command signal is “1.”
• The command pulse zero signal becomes “1” when the command pulse register is “0” (when the FIFO buffer is
free).
• In position command mode, after the rising edge at which the start signal changed from “0” to “1,” positioning
operation is executed according to the position data sent from the CPU module while the start signal is “1.”
• After the rising edge at which the start command signal changed from “0” to “1,” position data is fetched as a base
value, and then the increment is calculated.
• When the deviation of the current position from the target position comes in the range of near-zero, the near-zero
signal becomes “1.”
• The positioning end signal becomes “0” while the start signal is “1.”
• The command pulse zero signal becomes “1” when no pulse is output.
• When the start command signal becomes “0,” pulse output is immediately stopped.