User`s manual

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Using Your VS-510C as a Wireless TTL Slave
Groups: With the VS-510C’s wireless system, you can assign remote ash units to any one of three groups (A,
B, or C) and set the mode and power ratio for each group.
Channels: Master and slave ash units exchange data through channels. On the VS-510C, four channels (1, 2,
3, 4) are available. You can select the channel you prefer for communication between the master and remote
ash units. You can use this option to prevent your remote units from being triggered by the master unit of
another photographer working with the same type of system nearby.
Setting the remote TTL ash units: To set a VS-510C ash unit to function as an automatic TTL slave, follow
these steps:
1. Make sure the master ash or controller on your camera is on and set to automatic TTL mode.
2. Select the appropriate group and channel on the master unit. Consult the master’s manual to nd out how
to set it.
3. Make sure that the slave mode switch on the VS-510C is set to the Off position.
4. Press the Mode button repeatedly to cycle through the mode options on the LCD. After the manual modes,
the following slave TTL (STTL) modes will be displayed: 1A, 1B, 1C, 2A, 2B, 2C, 3A, 3B, 3C, 4A, 4B, 4C.