
15. PMC CONTROL FUNCTION
B–63523EN–1/03
1812
(5) External pulse synchronization – third manual handle
(EC0g to EC6g: 0Fh)
(6) Speed command (EC0g to EC6g: 10h)
[Classification] Output signal
[Function] When this signal is set to “0”, control axis selection signals EAX1 to
EAX8 can be changed.
This signal is set to “1” in the following cases:
(1) When the tool is moving along a PMC–controlled axis
(2) When a block is being read into a buffer
(3) When the servo–off signal ESOFg is set to “1”
When this signal is set to “1”, control axis selection signals EAX1 to
EAX8 cannot be changed. Any attempt to change these signals results in
the output of P/S alarm No. 139.
If an attempt to change signals EAX1 to EAX8 is made when servo–off
signal ESOFg is “1”, P/S alarm No. 139 occurs and cannot be released
simply by setting reset signal ECLRg to “1”. In such a case, restore
signals EAX1 to EAX8 or set servo–off signal ESOFg to “0” before
setting reset signal ECLRg to “1”.
When a command is issued for any of the four paths with PMC axis
control, signal *EAXSL is set to “1” to disable axis selection. Thus,
changing signals EAX1 to EAX8 results in the output of P/S alarm No.
139. For paths for which commands are not issued, however, axis
selection is enabled if bit 5 (DSL) of parameter No. 8004 is set
accordingly.
[Classification] Output signal
[Function] This signal is set to “1” when the corresponding PMC–controlled axis is
in the in–position state.
When the tool is decelerated, in–position check is performed to disable
the next command until the tool enters the in–position area. The
in–position check, however, can be skipped using bit 6 (NCI) of
parameter No. 8004 to reduce the cycle time.
NOTE
When the axis is fed at a very low speed, the in –position
signal might turn to “1”.
18 Control axis selection
status signal *EAXSL
19 In–position signal
EINPg