3. Configuration of the Operating Mode and System Parameters
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(3)
Step 3. Low Speed Encoder Z-phase Search
The step 3 outputs the drive pulse to the home search low speed is set in Parameter tab and the specified
direction until the encoder Z-phase signal (nSTOP2) is activated.
To execute the low speed encoder Z-phase search operation, the home search in low speed is configured
as lower value than the start speed�
If the encoder Z-phase signal (nSTOP2) is activated to the constant speed drive, the drive stops
immediately. If the encoder Z-phase signal (nSTOP2) is activated in Mode tab, the deviation counter clear
signal (also, as nOUT0 signal) can come out for a servo motor.
Caution
①
If the encoder Z-phase signal (nSTOP2) has been already activated before the step 3 starts, an error
occurs and the home search ends� Adjust your system to start the step 3 only when the encoder Z-
phase signal (nSTOP2) is deactivated.
②
If the limit signal of the detected direction has been already activated before the step 3 starts, an error is
occurred and the home search is ended�
③
If the limit signal of the detected direction is activated in use, the detecting operation is stopped and the
home search is ended�
(4)
Step 4. High Speed Offset
The step 4 outputs the drive pulses as many as the home search offset to the home search high speed is
set in Parameter tab and the specified direction.
This is used to move from the mechanical home to working home� If the step 4 ends, the position counter is
reset as zero and return to home. The Servo Inposition Enable is set as disable in Mod tab.
3.1.3.2 Configurations
Home Search Mode tab is available to set Near Home Signal, etc. Only X-axis is displayed for PMC-1HS.
(1)
Near Home Signal
With the step 1, this mode configures the active level of the near home signal (nSTOP0).
Display
Selection
Factory default
Near Home Signal
Low (GEX connection)/High (Open)
Low
Near Home Signal on each axis is pin #11 of connector CN4 and 5.
For the active level, in case of selecting Low, the detecting operation of the step 1 is started�
If the signal is connected to the GEX, the drive stops evaluating that the signal is active.
In case of High, the drive goes slow and stops evaluating that the opened signal is active�
