Scanlab RTC6 PCIe Board - Scanner Delays; Jump Delay

RTC6 boards
Doc. Rev. 1.0.21 en-US
7 Basic Functions for Scan Head Control and Laser Control
147
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7.2.2 Scanner Delays
There are three different types of Scanner Delays:
• Jump Delays (optionally: variable)
• Mark Delays
• Polygon Delays (optionally: variable)
After each Jump Command and Mark Command, the
RTC6 PCIe Board inserts one of these Scanner Delays
before the next command is executed (unless
otherwise specified).
These Scanner Delays are defined by
set_scanner_delays. Their unit is 10 µs each.
Jump Delay
The Jump Delay is specified by set_scanner_delays
with the Jump parameter.
A typical course for a single Jump Command and the
belonging Jump Delay is shown in Figure 35.
The total time for a jump is made up of the jump time
and the duration of the Jump Delay.
The duration of the Jump Delay should suit the
dynamic properties of the scan head (Tracking Error,
tuning) and the jump speed set.
35
Scan head control during a Jump Command with a constant Jump Delay.
The laser remains off.
Position
Laser
0
1
Time
Jump command
Tracking
error
Real positionSet position
(Microsteps)
Jump delayJump time
Total time for the jump
Time