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3.4. Turning on Main Power
3.4.4. Turn the Power and the Servo on.
3.4.4. Turn the Power and the Servo on.
(1) Turn on the power.
(2) The System checks DRDY output after 2 seconds.
(3) If the System is in normal state, turn ON the SVON input. The System gets in Servo ON state.
(4) Then input a necessary operation command.
Figure 3-20: Flow of Power on and Servo ON.
DRDY closed
Action for alarm
Figure 3-21: Timing for Power and Servo ON.
Control power
Main power
DRDY output
SVON input
Operation
command
！ Caution : Turn SVON input ON after the main power is turned on. Turn off the
à If the System does not outputs the DRDY output normally, take appropriate measures
referring to "10. Alarm."
Driver Unit side
Initialization
Check
NG
conditio
OK
DRDY open
Servo lock
Operating Motor
ON
OFF
ON
OFF
ON
OFF
* It takes approximately 30 ms to turn the servo on after SVON input is activated. Start
the operation after 30 ms after the SVON input is ON.
SVON input before the main power is turned off. If the main power is
turned off leaving the SVON input ON, the Driver Unit will give "Main
power low voltage" alarm.
Power on
Timer
DRDY
check
SVON
Operation command
2 sce. approximately
Confirmed
See note
30ms min.*
Home Return etc.
— 3-24 —
B
B
3
3
t
t
y
y
p
p
e
e
2
3
t
y
p
e
2
3
t
y
p
e
Master controller
(User's controller)
NG
OK
Action for alarm
See note.
B
B
5
5
t
t
y
y
p
p
e
e
2
5
t
y
p
e
2
5
t
y
p
e
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Troubleshooting
