Uniblitz VincentAssociates VED24, Instructions Manual, Page: 17 / 35

VED24 User Manual 16
Operator Controls
VED24 Front Operator Controls
Please Refer to Figure 3.
1.
POWER LED indicator.
A green LED indicating that DC power is being provided to the unit.
2. DRIVER LED indicator.
A green LED indicating when the internal shutter driver circuit input has an active signal
present.
3. SYNC LED indicator.
Indicates the status of Solid State Synchronization output. This green LED is illuminated
when shutter's electronic SYNC sensor is activated. This LED functions only if the shutter
used is equipped with the Solid State Synchronization system.
4. N.O./N.C
.
Toggle switch.
The N.O./N.C. switch acts to invert the shutter operation. The position of this switch
determines shutter status BEFORE a trigger signal is received by
VED24 . In the N.C.
position the shutter will be triggered open by an input pulse signal. In the N.O. position the
shutter will be triggered closed.
5. PULSE INPUT BNC.
Allows control of the shutter’s exposure and frequency from a TTL signal source. The pulse
duration determines the shutter exposure interval. The frequency of the signal presented to this
input determines the frequency of shutter exposures. This input is active low.
6.
FUNCTION Switches: Four edge actuated piano-DIP slide switches.
a.
Switch 1 is used to select the LOCAL or REMOTE status of the controller. The LOCAL
(up) control disables COM PORT (USB) communication; the BNC PULSE INPUT and
N.O./N.C. switch are enabled. The REMOTE (down) enables the COM PORT (USB)
communication; the BNC PULSE INPUT and N.O./N.C. switch are disabled.
b.
Switch 2 is used to select the voltage level provided to the internal shutter driver.
Standard +10.7VDC is provided in the (up) position, +18VDC is provided in the (down)
position. The chart in Table #2 indicates the voltage level for the particular shutter used.
c.
Switch 3 allows the user to select between bi-stable (up) and uni-stable (down) modes.
The chart in Table #2 indicates the voltage level for the particular shutter used.
d.
Switch 4 allows selection of the PULSE SET as indicated in Table #3. Pulse set #1 is
selected with this switch in the (up) position. Pulse set #2 is selected with this switch in
the (down) position. See Table #3
for a summary of the timing selections available.
7.
PULSE DURATION Rotary Switch:
Rotation of the 8-position octal rotary switch (labeled 0 to 7) selects the duration of the drive
pulses to the shutter. These timing selection values are determined by the setting of
FUNCTION SWITCHES #3 and #4. See Table #3 for a listing of timing selections
available. This will allow a total of 16 timing selections for bi-stable shutters and 16
selections for uni-stable shutters. A total of 32 timing selections are available.