
1.AXIS CONTROL B-63323EN-1/03
- 198 -
If it is difficult to read the torque difference absolute value from
the Servo Tune screen, the following steps can be used to observe
the torque difference absolute value with an oscilloscope.
4 Set parameter Nos. 1726 and 1774 with 0 and 178 respectively.
5 Connect the check board to CH7 and set the rotary switch on the
check board to 1 to observe the channel.
6 A conversion formula for the observed value is 1 V = 410 (set
threshold setting). Read the maximum value during normal
operation, and set the parameter to a value incorporating a margin.
- Enabling/disabling alarm detection
Alarm detection is enabled when the time specified in the parameter
elapses after the servo ready signal SA <F000#6> becomes 1. It is
disabled when the input signal NSYNCA (G158.3) becomes 1.
[Timing chart]
SA<F000#6> 1
0
Alarm detection
Enabled
Disabled
Value set in parameter No. 1842
(512 ms if the parameter has not been specified)
If the servo ready signal SA <F000#6> is 0, torque difference alarm
detection is not performed.
NOTE
A servo axis number combination for master and
slave axes must be, for example, (1, 2) or (3, 4), in
which the master axis is assigned an odd number and
the slave axis is assigned the even number that is
one greater than the master axis.