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Command Descriptions
293
* 6
FOLEN
Active
Following has been enabled with the
FOLEN
command.
* 7
Master is Moving
The specified master is currently in motion.
8
Master Dir Neg
The current master direction is negative. (bit must be cleared to allow
Following move in preset mode–
MCØ
).
Bits 5-8 indicate the status required for Following motion (i.e., a master must be
assigned, Following must be enabled, the master must be moving, and for many
features, the master direction must be positive).
Unless the master is a commanded position of another axis, it is likely that minor
vibration of the master will cause bits 7-8 to toggle on and off, even if the master is
nominally “at rest”. These bits are meant primarily as a quick diagnosis for the absence
of master motion, or master motion in the wrong direction. Many features require
positive master counting to work properly.
9
OK to Shift
Conditions are valid to issue shift commands (
FSHFD
or
FSHFC
).
10
Shifting now
A shift move is in progress.
11
Shift is Continuous
An
FSHFC
-based shift move is in progress.
12
Shift Dir is Neg
The direction of the shift move in progress is negative.
Bits 9-12 indicate the shift status of the follower. Shifting is super-imposed motion, but if
viewed alone, can have its own status. In other words, bits 10-12 describe only the
shifting portion of motion.
13
Master Cyc Trig Pend
A master cycle restart is pending the occurrence of the specified trigger.
14
Mas Cyc Len Given
A non-zero master cycle length has been specified with the
FMCLEN
command.
15
Master Cyc Pos Neg
The current master cycle position (
PMAS
) is negative. This could be
caused by a negative initial master cycle position (
FMCP
), or if the master
is moving in the negative direction.
16
Master Cyc Num > 0
The master position (
PMAS
) has exceeded the master cycle length
(
FMCLEN
) at least once, causing the master cycle number (
NMCY
) to
increment.
Bits 13-16 indicate the status of master cycle counting. If a Following application is
taking advantage of master cycle counting, these bits provide a quick summary of some
important master cycle information.
17
Mas Pos Prediction On
Master position prediction has been enabled (
FPPEN
).
18
Mas Filtering On
A non-zero value for master position filtering (
FFILT
) is in effect.
19 RESERVED
20 RESERVED
Bits 17-18 indicate the status of master position measurement features.
21 RESERVED
22 RESERVED
23
OK to do
FGADV
move
OK to do Geared Advance move (master assigned with
FOLMAS
,
Following enabled with
FOLEN
, and follower axis is either not moving, or
moving at constant ratio in continuous mode).
24
FGADV
move underway
Geared Advance move profile is in progress.
Bits 23-24 indicate the status of geared advance features.
25 RESERVED
26
FMAXA
/
FMAXV
limited
The present Following move profile is being limited by
FMAXA
or
FMAXV
.
27-32 RESERVED
* All these conditions must be true before Following motion will occur.
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