Mitsubishi Electric FR-A5AP Instruction Manual page 82

REMARKS
If "E.ECT" (no encoder signal) is displayed causing the inverter to trip when the orient signal (X22) is ON, check for
an open cable of the Z phase of the encoder.
(2) Pr. 357 "orientation in-position zone"(factory
setting:11)
• The positioning width for orientation stop can be set.
• The factory setting of Pr. 357 is "11". To change the ∆θ
value, finely adjust with 10 increments, and make fine
adjustment.
• If the position detection value from the encoder enters
∆θ during orientation stop, the orientation complete
signal (ORA) will be output.
CAUTION
This setting is used to judge the ON/OFF of the orientation complete signal, and does not
determine the orientation stop precision.
ORIENTATION CONTROL AT A MACHINE END— V500
Example of operation
Set point
∆θ ∆θ
∆θ =
Pr.851 number of encoder pulses × 4
75
360°
× Pr.357