Chapter 3. Wiring and Signals
3-25
1. In the initial phase, servo is turned OFF, and A_CODE0, A_CODE1, and A_CODE2 indicate
ALARM code is turned ON (All OFF in normal condition). If the servo is turned ON, following
process will not start.
2. If ABSREQ is turned ON from external control like PLC, the servo driver reads the absolute
value at this time, turns ON HSOUT, and displays 2 MSB (D27 and D26) on DATA1 and
DATA0. Servo ON is ignored until transmission is completed thereafter. (a)
3. The external control (PLC) verifies HSOUT is turned ON, reads D27 and D26, and turns ON HSIN.
(b)
4. The servo driver verifies that HSIN has been turned ON, turns OFF HSOUT, and displays D25
and D24 on DATA1 and DATA0. (c)
5. The external control (PLC) verifies HSOUT is turned OFF, reads D24 and D25, and turns OFF
HSIN. (d)
6. The servo driver verifies that HSIN has been turned OFF, turns ON HSOUT, and displays D23
and D22 on DATA1 and DATA0. (e)
7. The external control (PLC) reads absolute value by repeating the process of item 3 through 6
above, turns OFF ABSREQ, and completes absolute position transmission. (f)
8. The functions of HSIN, HSOUT, DATA1 and DATA0 pins are automatically reset to the pins of
original SPD2/GEAR2, A_CODE2, A_CODE1, and A_CODE0 respectively, and the servo can
be turned ON.
Note 1)
In case alarm occurs when attempting to transmit absolute position, reset alarm first and
turn ON ABSREQ.
Note 2)
If ABSREQ is turned ON, the functions of SPD2/GEAR2 are automatically reset to HSIN.
If SPD2/GEAR2 pins are turned ON at this time, HSIN is recognized as being turned ON,
and transmission error might occur. Therefore, when ABSREQ is turned ON, turn OFF
the SPD2/GEAR2 (HSIN) pins.
Содержание FDA5000 Series
Страница 31: ...Chapter 3 Wiring and Signals 3 6 External view 3 250W 4 FDA 5075...
Страница 104: ...Chapter 6 Parameter Setting 6 31...