Mounting and electrical connection

DANGER!
Electric shock when live parts are touched.

Electric shocks can be fatal.

  1. Always disconnect device before carrying out work on it. To do so, switch off all corresponding circuit breakers, secure them against being switched on again and check that there is no voltage. Cover up any adjacent live parts.

Mount device

  1. Mount device on DIN rail.

Connect device

Control cable: appropriate type, cross-section and routing for the specifications for 230 V cables. DALI and mains voltage wires can be run together in a cable, e.g. NYM 5x1.5 mm². The connected DALI subscribers may be operated on different phases.

  1. The DALI control voltage is a functional extra-low voltage (FELV). When installing, perform the installation in such a way that when an area is disconnected, the lines carrying both the DALI and also the mains voltage are disconnected.
  1. If multiple circuit breakers supply dangerous voltages to the device or load, couple the circuit breakers or label them with a warning to ensure tripping.
  1. DALI participants from some manufacturers have expanded functions and can e.g. be controlled via mains voltage on the DALI connection. When existing DALI installations are refitted, remove all corresponding operator controls.
  1. Attach the cover cap to the bus cable connection as protection against hazardous voltages.

If the indicator (8) shows Er (error), an installation fault occurred that causes mains voltage to reach the DALI cable. In this case disconnect the device and the DALI devices from mains voltage and disconnect bus voltage. Correct installation.

DALI gateway connection example, 2fold
  1. Connect device as shown in the connection example Connection

The mains voltage supply can also be provided by the DC voltage of an emergency lighting system.

The DALI systems are supplied with power exclusively via the DALI Gateway. The connection of an additional power supply to one of the DALI systems is not permitted.

The gateway provides a maximum bus current of 250 mA for each DALI system connection. For this reason, it is not permissible to connect another DALI power supply to the controlled DALI systems.

The DALI power supply integrated in the gateway is short-circuit-proof. The gateway detects short-circuits on the DALI cable, as may occur in the case of an installation error. As soon as a short circuit is identified with the mains the gateway switches off the DALI system voltage. In these cases, a short-circuit status can optionally be sent out on the KNX. The gateway checks at intervals of approx. 10 s whether an identified short circuit is still present. If the short circuit has been eliminated, the gateway automatically switches the DALI system voltage back on and continues to operate in normal mode.

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