
15. WAVEFORM DIAGNOSTIC FUNCTION
811
NOTE1 Data items for which ***** is displayed cannot be set.
NOTE2 To change the sampling axes, enter new axis names then press
the [SELECT] soft key. Pressing the [SLELCT] soft key without en-
tering an axis name results in no sampling axis being set.
NOTE3 If the sampling axes are changed during data sampling, data sam-
pling is stopped. In this case, press the [START] soft key to restart
data sampling for the new sampling axes.
NOTE4 Initially, no sampling axis is set.
NOTE5 When the sixth–type sampling data is spindle load meter data
(PRM3121 = 1), set the axis name S.
D Storage data parameters
(1) Storage stop condition
100: Stops data storage upon the issue of a servo alarm.
101: Stops data storage upon the issue of a servo alarm or the detection
of the rising edge of the trigger signal.
102: Stops data storage upon the issue of a servo alarm or the
detection of the falling edge of the trigger signal.
The maximum stored data width is 32760 ms. If the storage stop condition
is not satisfied within 32760 ms, data is overwritten, starting with the oldest
data.
PRM3120 can be used to delay data storage being stopped by a
specified period (ms), after the issue of a servo alarm.
(2) Trigger: Set the PMC address and bit for the signal used to trigger the
stopping of data storage, when 101 or 102 is set for the stop condition.
Example) G0007.2: ST signal
(3) Data type: The following table lists the types of data for which a
waveform can be displayed.
Data type
Description Units
POS ERROR Servo error (8 ms) for the
n–th axis
Pulses
(detection units)
MOTION CMD Pulse distribution for the
n–th axis
Pulses
(input increments)
CURRENT (%) Torque for the n–th axis % (relative to maximum
current)
SPEED (RPM) Actual speed for the n–th
axis
min
–1
TORQUE CMD Command current for the
n–th axis
% (relative to maximum
current)
HEAT SIMLT Thermal simulation data
for the n–th axis
(when the PRM3121 is
set to 0.)
%
(OVC alarm ratio)
LOAD METER Load meter for the n–th
spindle
(when the PRM3121 is
set to 1.)
% (relative to maximum
output)
NOTE With PRM3121, choose whether the sixth–type sampling data is
thermal simulation data or spindle load meter data. When spindle
load meter is selected, the spindle data of the first axis is stored with
each path.