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8-44 Operating Modes
ECODRIVE03 SGP-01VRS
see section: "Operating Mode: Velocity Control"
see section: "Current Controller"
Note:
If the master axis encoder is not homed then zero pulse
detection is automatically activated. As soon as the zero pulse
is generated, there is a position jump to the value P-0-0087,
Offset position feedback value 3. The resulting velocity
jump is suppressed.
8.13 Operating mode: phase synchronization with virtual
master axis
In machining processes that need absolute phase synchronization, e.g.,
printing, punching or perforating in printing machines, then the position
relevant to the master axis is established in operating mode phase
synchronization.
The drive synchronizes in this mode to one of the master axis positions
set by the control (virtual) (P-0-0053).
The structure of the phase synchronization mode with virtual master axis
is illustrated below:
Command value prep.
Phase synchronization
Master axis
position
Position
control
Position
command value
Fig 8-43:
Velocity
control
Velocity command
value
Current control
M
Torque/power
command value
Virtual phase synchronization block diagram
Pertinent Parameters
• S-0-0048, Position command value additional
• S-0-0236, Master drive 1 revs.
• S-0-0237, Slave drive 1 revs.
• P-0-0053, Master drive position
• P-0-0108, Master drive polarity
• P-0-0156, Master drive gear input revolutions
• P-0-0157, Master drive gear output revolutions
• P-0-0159, Slave drive feed travel
Command value preparation with phase synchronization with virtual
master axis
In phase synchronization mode with a virtual master axis the position
command value is generated by adding the synchronous position command
value (XSynch) and S-0-0048, Position command value additional.
S-0-0047, Position command value =
XSynch + S-0-0048, Position command value additional
XSynch: synchronous position command value
Fig. 8-44:
Generating the position command value
DOK-ECODR3-SGP-01VRS**-FKB1-EN-P