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MPH-02, MPB-02, MPD-02
Failure of Switch Signal for
Block Advance
v
velocity
profile
P-0-4026,
Positioning block
selection
P-0-4051,
Positioning block
acknowledgment
cam 1:
P-0-4057,
Pos. block, input
linked blocks (bit 0)
Drive HALT (AH):
S-0-0134,
Master control
word (bit 13)
end position reached:
P-0-4061,
Positioning block
status word (bit 4)
positioning block
acceptance:
P-0-4060 (bit 0)
S-0-0419,
Positioning command
acknowledge
positioning inputs valid
positioning acknowledgment outputs show negated status
of positioning inputs
after valid block acceptance, positioning acknowledgment outputs
show non-inverted status of positioning inputs
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
If the start block of a switch-signal-dependent sequential block is an
absolute or relative positioning block, the drive positions at target position
if the switch signal for block advance is not received. The drive thus only
generates the message "end position reached" after the sequential block
chain is completed. If a switch signal is then applied, the drive will carry
out the sequential block.
positioning block 02
positioning block 01
02
t
R
Fig. 7-40:
Example: switch-signal-dependent block advance (behavior with
failure of switch signal)
Note:
According to master
acceptance takes place by toggling bit 0 in S-0-0346 or by a 0-
1 edge of bit 0 in P-0-4060.
Operating Modes
S-0-0124,
Standstill
window
target position
block 2
02
t
DK000036v01_en.fh7
communication, positioning block
7-67
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