Safety Precautions - Mitsubishi Electric MR-JE-*C Instruction Manual

8. HOW TO USE INDEXER

8.6 Safety precautions

(1) I/O signal
(a) When a home position return is not executed in the absolute position detection system and
incremental system
Point actual value (2D69h) is "0".
(b) When one or more home position returns is completed
1) At power-on and forced stop, the corresponding station number can be read with Point actual
value (2D69h) if it is within the in-position range of each next station position.
2) After power-on or after servo motor driving after forced stop canceled, even if the target next
station is within the in-position range, unless the remaining command travel distance is "0", the
Point actual value (2D69h) remains "0".
3) After power-on or after servo motor driving after forced stop canceled, the corresponding station
number can be read with Point actual value (2D69h) if the remaining command travel distance is
"0" and within the in-position range of the target next station to be stopped.
(2) Torque limit
When inputting the Controlword bit4 (New set-point) of the rotation direction specifying indexer, the
shortest rotating indexer operation, and the torque limit changing dog type home position return, the
torque limit will change from the setting value of [Pr. PC35 Internal torque limit 2] to the setting value of
[Pr. PA11 Forward rotation torque limit] or [Pr. PA12 Reverse rotation torque limit]. Additionally, after
positioning completed signal is outputted, the time has passed set with [Pr. PT39] and the torque limit
will change from [Pr. PA11 Forward rotation torque limit] or [Pr. PA12 Reverse rotation torque limit] to
the setting value of [Pr. PC35 Internal torque limit 2].
(3) Deceleration to a stop function
When the operation is stopped with the deceleration to a stop function during each operation mode of
the rotation direction specifying indexer, shortest rotating indexer, and station JOG, the shaft will stop
regardless of the station position.
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