User`s manual

Configuration
GFK-1742A Chapter 4 Configuration 4-15
4
not open until after the
%Q Enable Drive
command is set to zero. An error code indicating which
limit is tripped is reported to the %AI
Axis Error Code
. At this point, only one DSM314 action is
allowed: the appropriate %Q
Jog
and %Q
Clear Error
bits may be used simultaneously to back
away from the Limit Switch. The %Q
Clear Error
bit must be maintained ON to Jog off the limit
switch. The user may also manually move the disabled axis off the limit switch. After the alarm is
cleared, normal operation may resume.
Caution
Force D/A commands ignore the limit switches and should be used with
caution.
5.03 Drive Ready Input.
Enables or disables the Drive Ready input for Analog Servos. This
configuration item is ignored for a Digital Servo or Auxiliary axis,. If the Drive Ready input is
enabled, the Drive Ready faceplate input signal (IN4) must be turned on (set to 0v)
within 1
second
after the
Enable Drive
%Q bit is turned on. If the Drive Ready faceplate input is turned off
while the
Drive Enabled
%I bit is on, error code C0h will be reported and the axis will stop. The
Drive Ready Input configuration should be set to Disabled for Analog Servos which do not provide
a compatible Drive Ready output signal.
5.04 High Position Limit.
(User Units). When moving in the positive direction, the Actual Position
will roll over to the low limit when this value is reached.
The Position Limits can be used for
continuous rotary applications when the Software End of Travel configuration is set to
Disabled.
The High Position Limit should always be set one User Unit smaller than the desired
cycle. For example, a 360
°
machine would have a High Position Limit setting of 359. At the next
count past 359, the count would roll over to the value set in the Low Position Limit parameter (0 in
this example).
For proper operation, the rollover modulus (High Position Limit - Low
Position Limit +1) must always be greater than the distance traveled by the axis in one
position loop sample time (normally 2 ms).
See Appendix C for considerations when using an
absolute mode encoder. Default: 8,388,607.
5.05 Low Position Limit.
Low Pos Limit (User Units). When moving in the negative direction, the
Actual Position will roll over to the high limit when this value is reached. .
The Position Limits
can be used for continuous rotary applications when the Software End of Travel
configuration is set to Disabled. For proper operation, the rollover modulus (High Position
Limit - Low Position Limit +1) must always be greater than the distance traveled by the axis
in one position loop sample time (normally 2 ms).
See Appendix C for considerations when
using an absolute mode encoder. Default: -8,388,608.
5.06 High Software EOT Limit.
High Software End of Travel Limit (User Units). If the limit is
enabled and the DSM314 is programmed to go to a position greater than the High Software EOT
value, an error will result and the DSM314 will not allow axis motion
.
If the Follower control loop
is enabled, the High Software EOT Limit is ignored for slave axis motion resulting from master
axis commands. The limit only applies to slave axis motion resulting from internally generated jog
and motion program commands.
The limit is always ignored for
Move at Velocity
%AQ
commands
. Default: +8,388,607.
In Analog or Digital Servo modes,
the High Software EOT limit is used only when the
Software
End of Travel
configuration is set to Enabled. If the High Software EOT Limit is enabled and its