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Mitsubishi Electric FR-A5AP Instruction Manual Page 30

Transistorized inverter.
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4) Selection of whether DC injection brake or servo torque is started when the motor shaft
comes out of the in-position zone after the in-position signal has been output once.
You can select whether to start DC injection brake to lock the shaft or to start servo torque to
return the shaft to the orientation stop position if the motor shaft comes out of the in-position zone
due to external force, etc. after the output of the in-position signal.
5) Selection of DC injection brake, servo torque or orientation termination timing.
To terminate orientation, switch off the start signal (STF or STR) and then switch off the
orientation command (X22). At this time, you can select the point of switching off the in-position
signal between when the start signal is switched off or when the orientation command is switched
off.
6) In-position signal OFF selection; for use when the motor shaft comes out of the in-
position zone after the in-position signal is output once.
You can select either the mode in which the in-position signal is switched off when the motor shaft
comes out of the in-position zone or the mode in which the in-position signal remains on
(orientation fault signal is not output) when the motor shaft comes out of the in-position zone.
(2) Pr. 362 "position loop gain" (factory setting: 1)
When Pr. 358 "servo torque selection" value has been set to choose the servo torque function, the
output frequency provided to generate servo torque rises gradually up to the creep speed set in Pr. 352
according to the inclination set in Pr. 362 "position loop gain". Increasing the setting will increase the
operation speed but may cause the machine to hunt.
ORIENTATION CONTROL—A500(L)
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