7.2 Homing
7.2.1 Parameters Related to Homing
7-3
7.2
Homing
Homing is used to define the machine origin when the equipment power supply is turned ON.
7.2.1
Parameters Related to Homing
There are two types of parameters related to homing: parameters that define homing and
parameters that specify conditions for executing homing.
Parameters That Define Homing
The following three parameters specify the homing method, homing direction, and startup /
INPOSITION signal status.
Parameter That Specifies the Homing Method
Specify the homing method with PnB31 = n.X.
Parameter That Specifies the Homing Direction
Specify whether to perform homing in the forward or in the reverse direction with PnB32 =
n.X.
Always perform homing before you start program table operation. If you perform program
table operation without performing homing, positions cannot be managed so correct posi-
tioning may not be possible.
Unexpected machine operation, failure, or personal injury may occur.
Parameter Meaning When Enabled
Classifica-
tion
PnB31
n.
0
[default set-
ting]
The position when power is turned ON is the origin.
If the /HOME signal turns ON, an Illegal Homing
Command Error (E5DE) will occur.
After restart Setup
n.
1
The /DEC signal and encoder phase C are used for
homing.
n.2 Only the /DEC signal is used for homing.
n.3 Only the encoder phase C is used for homing.
n.4 Pressing homing is performed.
n.
5
The /DEC signal and encoder phase C are used for
homing. When the /DEC signal is detected, the hom-
ing direction is reversed.
Parameter Meaning When Enabled
Classifica-
tion
PnB32
n.0
[default set-
ting]
Perform homing in the forward direction.
Immediately Setup
n.1 Perform homing in the reverse direction.
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