Panasonic FPG Series Technical Manual page 147

FP2 Positioning Unit
Home return start flag (Y_2）
1. Home return is initiated based on the parameters written to the positioning unit.
2. The flag is not initiated during the time that the pulse output busy flag (X_0) is ON.
(It has already been initiated).
3. The flag is reset when the power supply is turned OFF.
Near home input (X_7)
1. Deceleration begins when the near home switch input connected to the positioning unit becomes valid.
2. The leading edge of the signal is detected, so changes to flags following the input do not affect
operation.
-Confirmation of the input logic is necessary. <Refer to page 10-24.>
Home input (X_6)
1. The table stops when the home switch input becomes valid after the near home switch input
connected to the positioning unit became valid.
2. The leading edge of the signal is detected, so changes to flags following the input do not affect
operation.
-Confirmation of the input logic is necessary. <Refer to page 10-24.>
Deviation counter clear output
1. This goes ON for approximately 1 ms or 10ms after the home return has been completed.
- This is used in systems in which a servomotor is used.
Pulse output busy flag (X_0）
1. This goes ON with the next scan after home return has been initiated, and goes OFF when the pulse
output is completed.
2. Operation cannot be shifted to any other operation while this signal is ON (except for a forced stop
and a deceleration and stop).
3. This is reset when the power supply is turned OFF.
-This flag is shared among E point control, P point control, JOG operation, JOG positioning operation
and home return. (except for the pulser input operation)
Home return done flag (X_8)
1. This goes ON when a home return is completed, and is maintained until E point control, P point
control, JOG operation, JOG positioning operation, a home return, or pulser input operation is started.
2. This flag is reset when the power supply is turned OFF.
Pulse output done flag (X_1)
1. The pulse output done flag does not go ON when a home return is completed.
2. Before a home return is started, this goes from ON to OFF when E point control, P point control, JOG
operation, JOG positioning operation or pulser input operation is completed.
3. If this is OFF before a home return is started, it remains OFF and does not change.
4. This flag is reset when the power supply is turned OFF.
-This flag is common to E point control, P point control, JOG operation, JOG positioning operation and
pulser input operation.
Home Return
10-19