Panasonic MINAS A6N Series, Руководство по эксплуатации

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6-46 Rev.2.00
If the following parameters are set, the run inhibit input (POT, NOT) is detected when
returning to the Z phase detection position, which is treated as the origin, with the op-
eration for returning to origin by using the Z phase.
If run inhibit input is detected during the return operation, the protection function used
for interrupting and stopping energization can be enabled by making Err94.3 “returning
to origin error 2” occur.
Pr7.41 bit7 “RTEX function extended setup 4 Run inhibit input detection setting when
returning to origin of Z phase”=1
(Caution)
・
If the above value is set to the parameter and the Z phase in the vicinity of run inhibit
input (POT/NOT) is configured as the origin, Err94.3 may be erroneously detected
because overshoot occurs while returning to the Z phase detection position treated as
the origin.
In this case, the position at run inhibit is input needs to be separated from the Z phase,
which is treated as the position for completing return to the origin; therefore be sure to
prevent occurrence of returning operation in the vicinity of run inhibit input (POT/NOT).
.
・
If the above value is not set for the parameter, detection of run inhibit input (POT/NOT)
while returning to the Z phase detection position, which is treated as the origin when
returning to the origin by use of the Z phase, is disabled.
POT/NOT
speed
[r/min]
L-SPEED
position
Motor Speed
Err94.3 is falsely detected
due to overshoot.
Z phase detection
position treated as
Z phase
Example of false detection of Err94.3
POT/NOT
speed
[r/min]
L-SPEED
position
Motor Speed
Err94.3 does not occur even
if overshoot occurs.
Z phase detection
position treated as the origin
Z phase
Example for preventing false detection of Err94.3
6
3.
About the Protection Function Setting while
Returning to the Origin by Using the Z Phase
When in Trouble