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4. SYSTEM STARTUP
4.5.5 Axis No. assignment
With Axis No. assignment, the axis No. (on the position board) can be assigned by the axis No. on the servo
amplifier.
(1) When Axis No. assignment is invalid
When Axis No. assignment is invalid, correspondence between the axis No. on a position board and the
axis No. on a servo amplifier is shown in the following table.
(a) When SSCNET communication method is SSCNET
/H
Servo amplifier
axis No.
Line 1
d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 d16 d17 d18 d19 d20
Axis
No.
0.88ms 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
0.44ms 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 - - - -
0.22ms 1 2 3 4 5 6 7 8 - - - - - - - - - - - -
Servo amplifier
axis No.
Line 2
d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 d16 d17 d18 d19 d20
Axis
No.
0.88ms 21 22 23 24 25 26 27 28 29 30 31 32 - - - - - - - -
0.44ms - -- - - ---------- - - - --
0.22ms - -- - - ---------- - - - --
(2) When Axis No. assignment is valid
When Axis No. assignment is valid, the axis Nos. 1 to 32 (on the position board) can be assigned by the
servo amplifier axis Nos. d1 to d20 arbitrarily.
To assign the axis Nos., set the following parameters.
POINT
• To set servo amplifier axis Nos., use the axis No. assignment (parameter
No.0203).
Valid servo amplifier axis Nos. differ depending on the control cycle. Up to 20
axes can be set.
Control cycle SSCNET /H
0.88ms 1 to 20
0.44ms 1 to 16
0.22ms 1 to 8
(a) System parameter
Parameter
No.
Abbreviation Name Function
0002 *SYSOP2 System option 2
0
Axis No. assignment selection
Set 1 when validating axis No.
assignment. When axis No.
assignment is invalid, axis No. is
automatically assigned.
0: Invalid
1: Valid
00