Table of Contents
Advertisement
Fig. 9-12 Allowable Range Relative Position for the External Pulse
Correction
Backlash compensation
Functions
(see "Backlash compensation" in Section 9.7.2)
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
Stepper motor rotation without a specified setpoint value likewise triggers
a "Rotation monitoring" error in response to the NIX edges caused by the
unwanted rotation. This occurs whenever the preceding target position
falls within the range outside the allowable window for the NIX edges. If
an unwanted rotation occurs outside the allowable window, there is no
way of identifying whether oscillation on a NIX edge position caused by
malfunction generated the error, or whether complete motor revolutions
are involved.
Rotation monitoring is automatically discontinued whenever the synchro-
nization mark is passed over in the "Reference point approach" operating
mode, and the function "Retrigger reference point approach" is executed.
–45
B
NIX
A
+45
X
– Permissible range for NIX
A
– Following error trigger point on rotation + (after 1 rev. + 45 )
B
– Following error trigger point on rotation – (after 1 rev. + 45 )
NIX – Zero pulse external
– (NIX center is synchronization point for rotation monitoring)
Description of Functions
X
9-83
Advertisement
Table of Contents
