Omron CJ1W-MA - REV 10-2008, Operation Manual

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Origin Search Operation Section 8-2
is shorter than the communications cycle, the PCU is unable to detect the
input signals, and operations cannot be performed normally.
When using a G-series incremental encoder, only the encoder type setting in
the Axis Parameters is required (the Pn00B setting in Servo Parameters is
disabled when an incremental encoder is used).
When using a W-series incremental encoder, only the encoder type setting in
the Axis Parameters is required (the Pn002.2 setting in Servo Parameters is
disabled when an incremental encoder is used).
An absolute encoder cannot be used with a SMARTSTEP Junior Servo Drive,
and Pn002.2 is not supported. Use the Servo Drive as if the axis parameters
are set for an incremental encoder.
Origin Input Signal Parameters
d = 1860 hex + (Axis No.
−
1)
×
14 hex
Use this parameter to select the origin input signal to be used with origin
search. When external latch signals 1 to 3 are used as the origin input signal,
the external latch signal used must be allocated in the Servo Drive's external
input allocations.
When using a SMARTSTEP Junior Servo Drive, only the Z phase or the exter-
nal latch signal 1 input can be set for the origin input signal.
Axis Parameter
Area
Encoder type
G-series Servo Parameter Pn00B (Operation Switch when
Using Absolute Encoder)
0: Use as an absolute
encoder.
2: Use as an absolute
encoder but ignore abso-
lute multi-turn counter over-
flow alarm
1: Use as an incremental
encoder.
0: Incremental
encoder Do not set this combination. This setting is used when
using an absolute encoder as
an incremental encoder.
1: Absolute encoder This setting is used when
using an absolute encoder as
an absolute encoder. Do not set this combination.
Axis Parameter
Area
Encoder type
W-series Servo Parameter Pn002.2
(Operation switch when using absolute encoder)
0: Use as absolute encoder. 1: Use as incremental
encoder.
0: Incremental
encoder Do not set this combination. This setting is used when
using an absolute encoder as
an incremental encoder.
1: Absolute encoder This setting is used when
using an absolute encoder as
an absolute encoder. Do not set this combination.
PCU's
address
Contents Setting
Bits 15 to 08 Bits 07 to 00
d Origin input sig-
nal selection Interrupt input
signal selection Origin input signal selection
00: Phase Z (default setting)
01: External latch signal 1 input
02: External latch signal 2 input
03: External latch signal 3 input