B–65195EN/01
3. START-UP PROCEDURE
START-UP PROCEDURE
23
motor to make one turn, or a value obtained by dividing the
number by an integer.
(Example of setting)
α pulse coder, semi–closed (detection in 1 µm units)
Ball screw lead
Number of nec-
essary position
pulses
Reference
counter
Grid width
10mm/rev 10000pulses/rev 10000 10mm
20 20000 20000 20
30 30000 30000 30
11. Switch the NC off and on again.
This completes servo parameter initialization.
If a servo alarm related to pulse coders occurs for an axis for
which a servo motor or amplifier is not connected, specify the
following parameter.
b7 b6 b5 b4 b3 b2 b1 b0
1953
8X09
SERD
2009
SERD(b0) The serial feedback dummy function is:
0:Not used
1:Used
12. When you are going to use an α pulse coder as an absolute pulse
coder, use the following procedure.
The procedure for setting absolute position communication using
the α pulse coder is somewhat different from the procedure using
serial pulse coder A.
1. Set the following parameter, and switch the CNC off.
– Series 15, 16, 18, 20, 21
b7 b6 b5 b4 b3 b2 b1 b0
1815 APCX
Bit 5 (APCX)
0:Does not perform as absolute position pulsecoder.
1:Performs absolute position as communication pulsecoder.
– Series 0–C
b7 b6 b5 b4 b3 b2 b1 b0
21 APC8 APC7 APC4 APCZ APCY APCX
STPX to 8
0:Does not perform absolute position communication for the
X–, Y–, Z–, 4–, 7–, or 8–axis.
1:Performs absolute position communication for the X–, Y–,
Z–, 4–, 7–, or 8–axis.
2. After making sure that the battery for the pulse coder is
connected, switch the NC on.