Vexta aStep AS Series Operating Manual page 38

Note
• Normally, keep the C.OFF input
in the "OFF" state or leave it
disconnected.
• Turning the C.OFF input to
"ON" resets the deviation
counter in the driver.
Note
Be sure to set the resolution
selection switch to "×1" when
"×10 input" is used.
If the switch is set to "×10," the
resolution will remain at 10
times, regardless of the "ON" or
"OFF" resolution-selector input.
Note
• The overcurrent protection,
EEPROM data error and
system error protective
functions cannot be cleared.
When any of these functions
are triggered, contact the
nearest customer-service
center, branch or sales office.
• Turning the power back on will
clear the ALARM output.
To cancel the ALARM output,
be sure to remove the cause of
the problem that has triggered
the protective function before
turning the power back on.
After the power has been shut
off, wait at least 10 seconds
before turning the power back
on.
38
C.OFF (All windings off) input
Use the signal only when the motor's output shaft must be rotated manually for position
adjustment.
Warning • Do not turn the C.OFF (All windings off) input to "ON" while the motor is
operating. The motor will stop and lose its holding ability, which may result
injury or damage to equipment.
1.
When the C.OFF input is turned "ON," the driver will shut off the output current and the
motor will lose its excitation holding torque.
This, however, will allow you to adjust the load position manually.
2.
When the C.OFF input is turned "OFF," the driver will turn the output current to "ON" again
and the motor's excitation holding torque will be restored.
The C.OFF input must be "OFF" when operating the motor.
×10 (Resolution selection) input
Selects and switches to 10 times either of the resolution "500: 0.72°/pulse" or "1000: 0.36°/
pulse" that has been selected with the resolution selection switch.
For instance, if "1000: 0.36°/pulse" has been selected, this signal can switch between the
0.36° step rotation and 0.036° step rotation.
Refer to page 43 for the selection of the resolution selection switch.
1.
Turning the ×10 input to "ON" will select/switch to "×10 resolution."
2.
Turning the ×10 input to "OFF" will select/switch to "×1 resolution."
1000
ACL (Alarm clear) input
The input clears the ALARM output issued when a protective function has been triggered.
The ALARM output remains "ON" when the driver is operating normally, then turns "OFF" when
a protective function is triggered. For details, refer to "ALARM output" on page 39 and
"Protective function" on page 46.
Setting the ACL input in the ON state clears the ALARM output.
To cancel the ALARM output, be sure to remove the cause of the problem that has triggered the
protective function before turning the power back on.
(Alarm clear)
ALARM output
500
Resolution selection switch
X1
X10
1P 2P
ACL input ON
OFF
0.1 s minimum
0.5 s maximum
ON
(Alarm) OFF