Instruction manual

156
Operation
during a speed change, you can change the reaction speed
to SLOW, which will reduce these effects.
Note: The minimum ramp duration time for the slow
setting is twice as long as for the fast setting. If
you need a short ramp duration, use to the fast
setting.
To set the ICU-1 reaction speed:
• Turn the ICU-1 power off.
• Turn the ICU-1 power back on while holding down the
– OPEN button to set the ICU-1 to the fast reaction speed,
or the
– CLOSE button to set the ICU-1 to the slow reaction speed.
• The green SET F-STOP and NON LINEAR LEDs will
blink alternatingly for about 2 seconds in rapid
succession if a fast reaction speed is set, and in slow
succession if a slow reaction speed is set.
The last reaction speed set in the ICU-1 will remain in
memory even if the ICU-1 is turned off.
Note: Lens motors with a serial number smaller than
1190 will always use the fast reaction speed,
disregarding of the reaction speed setting on
the ICU-1.
Note: Some older ICU-1 models do not have the
capability to change the reaction speed. They will
always use the fast reaction speed. The ICU-1
can change reaction speeds from software version
V0210 on. Older units can be upgraded by
your local ARRI service center.
Note: When using the SLOW setting, the minimum
ramp times must be doubled – please see the
following chapter on calculating the ramp time.