Selecting The Shutter Position (Open/Close); Shutter Movement Errors: Causes And Solutions; Error Detection And Recovery; Table 4-1. Filter Switching Times (In Milliseconds) - Sutter Instrument LAMBDA 10-B Operation Manual

38
Speed Setting
0*
1
2
3
4
5
6
7
* NOTE: Speed 0 should be used only with 4-position filter wheels
(LB10-WHS4, LB10-WHS4IQ, or LB10-WHS4E).

4.9 Selecting the Shutter Position (Open/Close)

Press the SHUTR key on the 10-B controller keypad to manually toggle the shutter to its
open or closed position.

4.10 Shutter Movement Errors: Causes and Solutions

SMART
The LAMBDA
Smart
Shutter's overall design that contributes to its superior performance is the acceleration
and deceleration profiles that are pre-programmed into the microprocessor commanding the
motor. There is a separate profile for each mode of operation. The motor commands
produced from these profiles result in smooth and efficient
Movement Errors After Successive Moves. The
for each selectable type of action. It is possible, however, to produce movement failures by
combining multiple actions with short intervals between the actions. As each action ends
there may be a small, brief oscillation about the new blade location. This may carry-over
from the end of one move to the beginning of the next when the delay between moves is
slight. This can occur even when the delay between moves is less than 50 msec. It is possible,
then, to experience movement errors after changing only the delay interval between moves.
If you are making moves with a short delay interval and errors are produced, it might be
desirable to adjust the interval to obtain the most secure result. Experiment with small
changes in the delay to find the best value and then keep the delay at that value. If you do
see errors in movement, try using a long time interval (1 second) between moves to test
whether the length of the interval is contributing to the error rate.

4.11 Error Detection and Recovery

The LAMBDA 10-B contains two sensor systems that are used to monitor the actual position
of the filter wheel. After the controller sends the step sequence for a move to a new filter
position, it compares the output of these sensors with the expected position. If there is no

Table 4-1. Filter Switching Times (in milliseconds).

Number of Filter Positions Moved
1 2
31 51
40 65
44 75
50 88
60 108
68 123
124 235
230 440
SHUTTER is optimized for the fast shutter action. One element of the
LAMBDA 10-B OPERATION MANUAL – REV. 1.20Q (20230227)
3 4
74 95
95 120
105 136
127 165
156 205
178 235
350 460
1100 1100
Smart
Shutter movements.
Smart
Shutter operates with great reliability
5
115
148
168
205
250
290
580
1100