— 3-14 —
Fig 3-13: Signal timing for Power on and Servo on
Confirmed
Approximately 3 seconds
on
off
170 ms max. (3.2 s max.)
¾
ON
OFF
on
off
Control power
Main power
DRDY output
SVON input
SVSToutput
Closed
Open
Operation command effective
1 ms max.
¾
It takes approximately 170 ms to turn the servo on after the input SVON (Servo ON)
is activated. (It takes 3.2 seconds for the first input of the SVON after the power is
on.). Confirm condition of the output SVST (Servo state), then start the operation.
0.5 s min.
！
Caution : Turn on the input SVON after the main power is on. Turn off the input
SVON before the main power is off. If the main power is off leaving the
SVON input ON, the Warning P5 (Main power under voltage) occurs.
◊ Refer to “7.1.4. Servo on: SVON” for turning on and off of the main
power.
◊ Input of the input ACLR (Alarm clear), the command CL (Clear
alarm), or turning on the power again will clear the warning.
！
Caution : The cogging torque is generated because a permanent magnet is built
into this motor. Therefore, rotors might move slightly at servo off and
the power-off.
◊ The cogging torque is magnetic suck power generated when the
rotor is moved while non-excited.
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