Fuji Electric micrex-sx NP1F-MP1, Руководство пользователя

Страница: 77 / 250

5-22
5-2 NP1F-MP1 I/O Area
) d n a m m o c t c e t e d l a n g i s Z - e s a h P : e m a n l a n g i S ( 6 t i B
<Description>
• When the first phase-Z signal is detected after this signal has become “1,” the phase-Z detect bit data signal
becomes “1.”
In the current value data area (address No. 3), the deviation amount data or the lower word of the current value
counter when phase-Z was detected is output.
When this detect command becomes “0,” the phase-Z detect bit data signal returns to “0.”
In addition, in the current value data area (address No. 3), the upper word of the current value counter is output.
Phase-Z detect command
(PC == > MP1)
Phase-Z detection
(PC <== MP1)
Phase-Z input
(external input)
Current value data
(PC <== MP1)
“1”
“1”
“0”
(1) (2)
Current
value Deviation
amount
Upper word of
current data
Data is held
Upper word of
current value
Latch data select
(PC == > MP1)
(3) (4)
(1) Not detected because phase-Z detect command is “0.”
(2) Not accepted because phase-Z is already detected.
(3) Deviation amount when phase-Z was detected
(4) The lower word of the current value counter when phase-Z was detected
Precaution:
Deviation amount is the signed data. In this module, the deviation amount is calculated using 32-bit signed data.
When the deviation amount exceeds 32,767 pulses, “-32,768” is output as the deviation amount when phase-Z was
detected.
(Because the current value data area is of one word length.)
Origin LS
(external input)
Phase-Z
(external input)
Rising edge A : Detected because origin LS is OFF.
Rising edges B and C: Not detected because origin LS is ON.
[ON]
[ON] [ON] [ON]
A B C
Precaution:
While origin LS signal is “ON,” phase-Z signal is not detected.