Relay Unit 490 2 × 2.3 A Blinds Controller
2-Channel Blinds Controller (490)
The 2-Channel Blinds Controller is a DALI-compatible interface unit that allows control of blinds and curtains in a DIGIDIM 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 relay-state indicator LEDs are illuminated when the respective relay is closed.
Note: This unit does not contain a DALI power supply. Therefore, one must be present elsewhere in the system.
Connection details DALI Supply wiring Load wiring
Key Features
- Up/Down mode operates in a ‘Break before Make’ manner to prevent motor damage.
- Relays are internally isolated permitting separate mains phases to be used for each control channel.
- All DALI functions are programmed with either DIGIDIM Toolbox or Designer software.
- DIN-rail mounted and only 88 mm wide.
Installation Notes
- The blinds controller is for use with motors up to 550 W.
- The external mains supply to the unit must be protected. It is recommended that a 6 A MCB is used.
- All cabling must be 230 V mains rated.
Technical Data
Relay load
|
Motor load:
|
550 W max.
|
Connections
|
DALI:
|
Standard DIGIDIM removable terminal block 0.5 mm² – 1.5 mm² solid or stranded
|
Mains:
|
Up to 4 mm² solid core or up to 2.5 mm² strandedNote: If equipment is used in an electrically noisy environment, the DALI cable should be screened and connected to the earth.
|
Power
|
Mains supply:
|
220 VAC – 240 VAC, 50 Hz – 60 Hz
|
DALI consumption:
|
2 mA
|
Mechanical data
|
Dimensions:
|
88 mm × 90 mm × 58 mm
|
Housing:
|
DIN-rail case 88 mm wide
|
Weight:
|
300 g
|
Mounting:
|
DIN rail (installation in switchgear/controlgear cabinet)
|
IP code:
|
IP30 (IP00 at terminals)
|
Operating and storage conditions
|
Ambient temperature:
|
0 °C to +40 °C
|
Relative humidity:
|
Max. 90 %, noncondensing
|
Storage temperature:
|
−10 °C to +70 °C
|
Conformity and standards
|
Emission:
|
EN 55015
|
Immunity:
|
EN 61547
|
Safety:
|
EN 61347-2-11
|
Isolation:
|
4 kV
|
Environment:
|
Complies with WEEE and RoHS directives.
|