
B--65245EN/02
3. PERIPHERAL EQUIPMENT CONTROLHANDLING
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(1) The PMC on the host NC sets the function code, command data 1, and
command data 2, then sends the ST signal to the servo amplifier unit.
Upon receipt of the data, the servo amplifier unit returns the operation
completion signal OPC 1 to the host NC, and also outputs the
unclamp command signal to the host NC.
(2) When unclamp completion notification is sent from the host NC, the
servo amplifier unit returns the operation completion signal OPC 2
to the host NC, and starts movement to the position corresponding to
a specified point number.
(3) Upon completion of the movement, the servo amplifier unit returns
the operation completion signal OPC 3 to the host NC, and also
outputs the clamp command signal to the host NC.
(4) When clamp completion notification is sent from the host NC, the
servo amplifier unit returns response data (point number or
coordinates) and the operation completion signal OPC 4, and is
placed in the start enabled state.
(5) If an alarm is issued while the servo amplifier unit is executing an
instruction, the AL signal is output. So, the PMC on the host NC is
to perform processing such as alarm indication. In this case, the
number of alarms and alarm numbers can be included i n the response
data by setting the DSAL signal [Subsection 2.3.13.(9)] to 1.
Supplementary information
1) The unclamp/clamp command signal and state signal are used for
communication with the host NC.
2) Whether the unclamp/clamp state signal is to be checked is specified
by setting bit 2 (IGCP) of parameter No. 003. When IGCP is set such
that no check is perform ed, the operation completion signal OPC 2
and operation completion signal OPC 3 are not output.
3) Use parameter No. 167 to set the period between the servo amplifier
unit being turned on and the unclamp command signal being output.
Use parameter No. 168 to set the period between the clamp command
signal being output and t he servo amplifier unit being turned off.
4) The ST signal can be accepted in the start enabled state only.
5) The start enabled state is that state in which the STL signal is off.