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User Guide
SWITCH-CONTROL
& SWITCH-CONTROL 2
FOR LED DRIVERS
Switch-Control is a protocol for controlling the
light with a mains rated retrievable switch.
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.
Maximum number of
LED drivers per circuit
Maximum wire length
Maximum number of
switches per circuit
*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
30
25 meters *
Limited by total wire length *
(see above)
Switch-Control 2
60
Driver technology does not
restrict the wire length
Driver technology does not
restrict the number of switches
UG22 001 1B 05.12.2018
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Summary of Contents for HELVAR SWITCH-CONTROL
- Page 1 *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.
- Page 2 Switch-Control is released. The Switch-Control fade is using DALI commands UP and DOWN with a fixed fade rate of 5 sec from min level to max level. RESET OF SWITCH-CONTROL Due to differences in the cable-inductances of individual luminaires the intensity of the various drivers might occasionally go out of sequence with time.
- Page 3 APPLICATION CONSIDERATIONS • Cable length in a Switch-Control 2 installation is not restricted by the driver technology, but it must be always ensured that the actual installation fulfills the relevant national legislation regulations regarding short-circuit current to ensure proper fuse or MCB operation in case of a fault condition.
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