
5.I/O SIGNALS B-63494EN/02
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The timing chart of signals related to MCC off Test mode is shown
below.
RQT
0
1
OPT
0
1
0
1
MCF1
0
1
0
1
SMC1
SMC2
Test No.
DGN379 1 2 3 4 0
0
1
CAUTION
1 While the MCC off test processing is in progress, avoid bringing the test mode
signal (OPT) to 0.
2 If multi-path control is carried out, run an MCC off test on individual paths
independently.
3 If different paths under multi-path control share the MCC, avoid carrying out an
MCC off test on those paths simultaneously. Never run the MCC off test
simultaneously on tool posts 1 and 2 under 1-CPU 2-path control or on tool posts 2
and 3 under 2-CPU 3-path control.
4 If the MCC off test processing is in progress on one of different paths sharing the
MCC under multi-path control, the remaining paths sharing the MCC should ignore
a VRDY OFF alarm by using the following: all-axis VRDY OFF alarm ignore signal
(IGNVRY <066#0>) or axial VRDY OFF alarm ignore signals (IGNVRY1 to
IGNVRY8 <G192>).
5 MCF2 via the FSSB under 1-CPU 2-path control is tested by the MCC off test on
tool post 1 and is not tested by the MCC off test on tool post 2. MCF2 via the FSSB
connected to tool posts 2 and 3 under 2-CPU 3-path control is tested by the MCC
off test on tool post 2 and is not tested by the MCC off test on tool post 3.
6 If MCC off test mode is set (OPT = 1) with SMC1 = SMC2 = 1 unchanged, the test
number (DGN379) is set to 0.
WARNING
While the MCC off test processing is in progress, the MCC-on enable signal (MCF)
goes high and low to turn on and off the MCC. Carry out the MCC off test in such a
state that the turning on or off of the MCC will not cause a problem.