7-60
Operating Modes
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Sequential Block Processing
Description of Basic Function
Note:
First of all the same basic rules as to single block processing
(see that section) apply to sequential block processing. In
addition to mere positioning block functions with defined
positioning blocks and block acceptance, there also is a
defined block transition to be parameterized.
A positioning block with sequential block is selected and activated in the
usual way, only the first block of the sequential block chain being
selected. The sequential block is the block with the next higher block
number. A sequential block can also have a sequential block so that after
a start block up to 63 sequential blocks can be set.
Note:
The potential sequential block of the last valid block is block 0.
There are two basically different modes for block advance that can be
subdivided:
1. Mode:
position-dependent block advance
•
block transition with old positioning velocity
•
block transition with new positioning velocity
•
block transition with intermediate stop
2. Mode:
switch-signal-dependent block advance
Position-Dependent Block Advance
With position-dependent block advance, switching to the sequential block
is carried out at the target position of the start block.
There are three different types of block transition:
a) Block transition with old positioning velocity (mode 1)
•
P-0-4019, Positioning block mode
= 11h
→
absolute block with sequential block
•
P-0-4019, Positioning block mode
= 12h
→
relative block with sequential block
•
P-0-4019, Positioning block mode
= 14h
→
infinite block in positive direction with sequential block
•
P-0-4019, Positioning block mode
= 18h
→
infinite block in negative direction with sequential block
In this mode the target position of the start block is run through at the
velocity of the start block. Then the positioning velocity is switched to that
of the sequential block.
With relative and absolute positioning blocks with block advance, the
drive moves in the direction of the target position. As soon as the target
position is passed, the drive switches to the next travel block n+1.
With infinite positioning blocks, the drive moves in positive or negative
direction. As soon as the target position is passed, the drive switches to
Selecting and Activating a
Sequential Block
Conditions to Advance in
Sequential Block Mode
Parameter Setting
Definition
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of
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