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commands:unlock

Command:UNLOCK (UL)

For CRISP or ZS
Tiger Syntax
Shortcut UL
Format [Addr#]UL [X=LED_Intensity] [Y=Update_Skip] [Z=Rel_LK_knob_spd][F=focus_index]
Type Card-Addressed
Remembered Using [Addr#]SS Z
MS2000 and RM2000 Syntax
Shortcut UL
Format UL [X=LED_Intensity] [Y=Update_Skip] [Z=Rel_LK_knob_spd][F=focus_index]
Remembered Using SS Z

Without arguments, this command unlocks the servo from the focus system and returns control to encoder feedback from the Z-axis drive. The focus error offset is not changed.

The LED_Intensity may be set from 0 to 100 (%) of full power using the X argument. Default is 99.

Update_Skip is used to reduce the update rate of the CRISP system to the motor drive system. Default is zero. Increase Update_Skip to improve stability when using piezo Z-axis drive systems and higher loop gain settings.

Rel_LK_knob_spd (default 2) controls the sensitivity of the control focus knob when the system is locked. This will vary depending on the calibration factor that the system finds, so don’t be alarmed if you find large sensitivity differences with conditions.

To select active Z-focus axis: If the controller can handle more than one Z-axis focus device, you can specify the focus_index to select which one is active for the CRISP, TRACKING or ZS functions. Specify as a 0-indexed number; find the axis index from the letter using Z2B command or else parse the output of the BU X command and figure out what number in order the axis letter is). Save the parameter change (SS Z) and reset the controller.

For TRACKING
Shortcut UL
Format UL [X=focus_enable ] [Y= z_cal_value ] [Z=closeness ] [F=focus_index]
Remembered Using SS Z

Without arguments, this command unlocks the servo from the focus system and returns control to encoder feedback from the Z-axis drive. The focus error offset is not changed.

focus_enable: X=0 autofocus off; X=1 autofocus on.

z_cal_value: is the gain constant for the focus servo.

closeness: is a relative value describing the precision of XY centering before Z focus tracking is activated. closeness should be set to roughly the acceptable xerr2 + yerr2, where xerr and yerr are typical “well tracked” errors numbers seen on the controller LCD display.

To select active Z-focus axis: If the controller can handle more than one Z-axis focus device, you can specify the focus_index to select which one is active for the CRISP, TRACKING or ZS functions. Save the parameter change (SS Z) and reset the controller.

commands/unlock.txt · Last modified: 2018/06/04 22:00 by jon