Ricoh FV-L500B1 manual Edge Preset Trigger Mode NonReset

3.3.2Edge Preset Trigger Mode (NonReset)

Camera mode	Normal mode			Trigger mode				*Note. 1	Normal mode
						Automatically switch to the normal
						mode if the pulse width of the
						trigger signal is more than
Trigger signal							500 mseconds.
(Rising edge)
					*Note. 2
		Next VD		Next VD		Next VD
Internal VD
			*Note. 3
			Exposure
CCD exposure			time

Video out

FVAL

*Note. 4

Note 1: The camera does NOT switch to normal mode when the long exposure mode is selected. This timing chart shows when the long exposure mode selected.

Note 2: The internal VD signal does not reset by the trigger signal.

The video output signal is sent out at the next internal VD timing.

Note 3: The exposure time is preset by the camera setting communication as “shutter speed”.

Note 4: The FVAL signal does not output when the exposure by the trigger signal does not exists.

3.3.3Exposure Timing

Trigger signal

30CLK

Exposure time

SUB

SG

Filtering *Note.1

T1'

Exposure time: T1' = Preset electronic shutter

Notes: The trigger signal equal to or shorter than 30 CLK is removed by the filtering system. Input trigger signal has to be more than 31 CLK pulse width.

The exposure starts198 CLK after the rising edge of the trigger signal.

FVL500B1	19/31
User’s Guide Rev. 1.01