Fuji Electric ALPHA7, User Manual

Page: 246 / 662

CHAPTER 4 PARAMETER
Automatic Operation Setting Parameters
4-55
4
 Typical homing profiles
(1) Basic homing profile (equivalent to homing profile 1 of FALDIC-
α
Series)
Described here is the homing profile of the most basic motion, in which homing is started, the
reference signal for homing (deceleration starting signal) is detected and deceleration to the creep
speed for homing occurs, and the reference signal for shift operation is detected and movement by
the home position shift unit amount is caused until the motion is stopped.
Use the profile if the machine stopping position is less than the reference signal for homing
(deceleration starting signal) or reference signal for shift operation.
Because nOT nor -OT is installed for homing of a rotating body as an indicator of the
traveling limit, this homing profile is used in principle.
[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
1: Encoder Z-phase 1 Power
12
Reference signal for homing
(Deceleration starting signal)
0: Home position LS 0 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 0: Reverse rotation
is
disabled
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

To cancel homing upon detection of +OT or -OT, specify 1 (stop) to parameter PA2_24
(selection of operation at OT during homing).