Helvar
Helvar 490 DIGIDIM Blinds Controller
Order code: helvar-490
The 2-Channel Blinds Controller is a DALI-compatible interface unit that allows control of blinds and curtains in a DALI lighting control system. The blinds controller is a DIN-rail mounted unit that provides two independent control channels, each with two single-pole, volt- free contacts for switching up to 550 W up/down or power direction motors from a DIGIDIM system.
The unit has a status LED, a physical selection switch and relay-state indicators. The status LED provides status and a fault indication. The physical selection switch is used to identify the device during system configuration. The relaystate indicator LEDs are illuminated when the respective relay is closed.
Key Features
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Up/Down mode operates in a ‘BreakbeforeMake’ manner to prevent motor damage.
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Relays are internally isolated permitting separate mains phases to be used for each control channel.
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DIN-rail mounted and only 88mm wide
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Number of channels: 2
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Max load / channel (A): 2.3