User Guide
CONNECTION OF SWITCH-CONTROL
Switch-Control operates by connecting the mains voltage to the DALI input terminals. Therefore please ensure that all the
components connected in this line are mains rated and protected according to all applicable safety requirements. The support of
DALI operation is disabled for the time of Switch-Control operation and re-enabled with a mains reset.
The maximum number of drivers & switches per circuit and the maximum wire lengths are presented in the table below. Ensure
all drivers and other loads are connected to the same mains phase.
Switch-Control
Switch-Control 2
Maximum number of
LED drivers per circuit
30
60
Maximum wire length
25 meters *
Driver technology does not
restrict the wire length
Maximum number of
switches per circuit
Limited by total wire length *
(see above)
Driver technology does not
restrict the number of switches
*The maximum wire length from the switch to the driver in Switch-Control is 25 m. The wire length can be extended to 200 m by
connecting a capacitor (1 μF, min. 275 VAC RMS and X2 rated, according to IEC 60384-14) across the Switch-Control input.
SWITCH-CONTROL 2
Helvar Switch-Control 2 brings technological updates to the original Switch-Control. While the functional logic and principles stay
the same, Switch-Control 2 allows theoretically unlimited installation wiring length. In addition, the amount of controllable drivers
is increased to as high as up to 60 drivers, ensuring even more flexible use of Helvar drivers in any installation.
SWITCH-CONTROL
& SWITCH-CONTROL 2
FOR LED DRIVERS
Switch-Control is a protocol for controlling the
light with a mains rated retrievable switch.
UG22 001 1B 05.12.2018
