Fuji Electric ALPHA7, User Manual

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CHAPTER 4 PARAMETER
4-64
Automatic Operation Setting Parameters
4
(4) Reference signal for shift operation homing profile (equivalent to homing profile 4 of FALDIC-
α
Series)
Upon detection of a reference signal for shift operation after the start of homing, the motion
reverses to the point ahead of the reference signal for shift operation, and then the motion
continues at the creep speed for homing to detect the reference signal for shift operation and
determine the home position.
Accurate homing (highly reproducible zero position) is realized only with the reference signal for
shift operation without using the reference signal for homing (deceleration starting signal).
[Parameter setting example]
PA2_
No. Name Setting
Default
value
Change
06 Homing speed 500.00 [r/min] 500.00 Always
07 Creep speed for homing 50.00 [r/min] 50.00 Always
08 Starting direction for homing 0: Forward rotation 0 Power
09
Reverse traveling unit amount for
homing
0 [unit amount] 0 Always
10
Homing direction after reference signal
detection
0: Forward rotation 0 Power
11 Reference signal for shift operation 0: Home position LS 1 Power
13 Home position LS signal edge selection 0: Rising edge timing 0 Power
14 Home position shift unit amount 1000 [unit amount] 1000 Always
15 Deceleration operation for creep speed
1: Reverse rotation
is
enabled
0 Power
16 Home position after homing completion 0 [unit amount] 0 Always
17 Home position detection range
0: Always ON after homing
completion
0 Always
18 Deceleration time at OT during homing 100.0 [ms] 100.0 Always
24
Selection of operation at OT during
homing
0: Reverse rotation 0 Power

Because rotation reverses in the direction opposite to the OT direction upon OT detection to
detect the reference signal for homing (deceleration starting signal) and reference signal for shift
operation, homing can be secured. The reverse rotation after OT detection follows (2) OT
reference homing profile.