User`s manual

5-4 Motion Mate™ DSM314 for Series 90™-30 PLCs User's Manual – January 2001 GFK-1742A
5
1.04 Configurable %I Status Bits
.
These inputs indicate the state of configurable CTL bits
CTL01-CTL08 and CTL13-CTL16. The default CTL bit assignments report the level of external
input devices connected to faceplate signals. All CTL bits may be tested during the execution of
motion program
Wait
and
Conditional Jump
commands. CTL bits can also be used to trigger the
follower ramp enable / disable functions. The CTL bit assignments are selected through
configuration. Consult Chapters 4 and 14 for additional information. Default CTL01-CTL08 and
CTL13-CTL16 assignments are shown in Table 5-2.
Table 5-2. Defaults for Configurable %I Status Bits
Bit
Name
Signal
Name
Signal Use
Input
Type
Faceplate
Connector
Pin
Digital
Servo
TB Pin
Analog
Servo /
Aux Axis
TB Pin
CTL01 IN9_A
Servo Axis 1 (+) Overtravel 24v A-16 6 16
CTL02 IN10_A
Servo Axis 1 (-) Overtravel 24v A-34 14 34
CTL03 IN11_A
Servo Axis 1 Home Switch 24v A-17 7 17
CTL04 IN1_A
Servo Axis 1 Strobe 1 Level 5v A-1,19 1,9 9
CTL05 IN9_B
Servo Axis 2 (+) Overtravel 24v B-16 6 16
CTL06 IN10_B
Servo Axis 2 (-) Overtravel 24v B-34 14 34
CTL07 IN11_B
Servo Axis 2 Home Switch 24v B-17 7 17
CTL08 IN1_B
Servo Axis 2 Strobe 1 Level 5v B-1,19 1,9 9
CTL13 IN9_C
Servo Axis 3 (+) Overtravel 24v C-16 NA 16
CTL14 IN10_C
Servo Axis 3 (-) Overtravel 24v C-34 NA 34
CTL15 IN11_C
Servo Axis 3 Home Switch 24v C-17 NA 17
CTL16 IN5_C
Servo Axis 3 Strobe 1 Level 5v C-9 NA 9
1.05 Axis OK.
The
Axis OK
status bit is ON when the DSM314 is ready to receive commands and
control a servo. An error condition that stops the servo will turn
Axis OK
OFF.
When
Axis OK
is OFF, no commands other than the
Clear Error
%Q bit will be accepted by the axis.
1.06 Position Valid
.
For a Servo Axis, the
Position Valid
status bit indicates that a
Set Position
command or successful completion of a
Find Home
cycle has initialized the position value in the
Actual Position
% AI status word. For a Servo Axis,
Position Valid
must be ON in order to
execute a motion program.
For an Auxiliary Axis, the
Position Valid
status bit indicates that an
Aux Encoder Set Position
command or successful completion of a Find Home cycle has initialized the position value in the
Actual Position
% AI status word. For an Aux Axis,
Position Valid
is
not
required to be ON in
order to execute a motion program.
If the DSM314 is configured to use an absolute feedback digital encoder (GE Fanuc
α
or
β
Series
servo with optional encoder battery),
Position Valid
is automatically set whenever the digital
encoder reports a valid absolute position. See Appendix C for details of operation when absolute
mode digital encoders are used.