
9.TOTAL CONNECTION DIAGRAM I/O Link B-65322EN/02
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9.2.15 Details of Cable K21 (Internal DI Connection)
9.2.15.1 Signals
The βi SVM has five DI signals. For the connection of the
emergency stop signal, see Subsection 9.2.10, "Details of Cable K8"
and Subsection 9.2.8, "Details of Cable K6". The other four DI
signals are explained below.
(1) *+OT:
A + overtravel signal input.
When this signal is set to "logic 0", movement in the positive
direction is disabled.
Use of this signal can be suppressed by parameter setting.
(2) *-OT:
A - overtravel signal input.
When this signal is set to "logic 0", movement in the negative
direction is disabled.
Use of this signal can be suppressed by parameter setting.
(3) *RILK (*DEC):
An interlock signal input (*RILK) or a reference position return
deceleration signal input (*DEC). One of these functions is
selected by parameter setting. When the interlock signal input
(*RILK) is selected, setting this signal to "logic 0" decelerates
then stops axis movement operation. Setting this signal to
"logic 1" resumes the operation. When the reference position
return deceleration signal input (*DEC) is selected, setting this
signal to "logic 0" decelerates the feedrate, then feed operation
continues at a constant low feedrate. If the signal is then set to
"logic 1", the feed operation stops as an electrical grid position is
encountered.
(4) HDI:
Skip signal input.
The currently executed block is skipped at the rising edge or
falling edge of this signal. Whether to use the rising edge or
falling edge of the signal is determined by parameter setting.