
4. SERVO FUNCTION DETAILS B-65150E/04
− 222 −
DOS prompt > SD INIT[Enter]
o (Origin of position)
F9 (System setting)
0 (CH0)
2[Enter] (TCMD)
639.84375[Enter] (A)
F10 (Return to main menu.)
NOTE) See Sec. 4.19 for explanations about how to use the SD
software.
In addition, the analog voltage from the check board can be
observed using an oscilloscope. In output conversion, 2.5 V
corresponds to 360 degrees.
4) Run the linear motor using a JOG operation for example, and
observe the behavior of the activating phase (AMR) before, at the
moment, and after phase Z is captured. (See Figs. 4.14.1 (a) and
(b).)
The activating phase changes to 0 (or 360) degrees at the moment
phase Z is captured. Measure the value just before it changes, and
let this value be A.
5) Set the AMR offset parameter with A (or A − 360).
NOTE) The valid data range for the parameter is between −45 and
+45. If A gets out of the valid data range, it is necessary to
re-adjust the mounting position of the scale. When A is
measured in analog voltage form, the voltage range for A is
between 0 and 0.3 V and between 2.2 and 2.5 V.
6) Observe the activating phase (AMR) by following step 4) again,
and make sure that the activating phase changes continuously at
the rising portion of phase Z.
Reset the parameter set at step 3) to 0.
7) Switch the power off and on again. Now parameter setting is
completed.
Fig. 4.14.1 (a) If the offset is set with a positive
number
Fig. 4.14.1 (b) If the offset is set with a negative
number
0.3 V (45
°
) or lower 2.2 V (315
°
) or higher
A
Phase Z
A
Phase Z