It is installed in RWA control panels to secure line monitoring. For signal transmission from an external fire alarm system, the smoke detector input can be used. This requires a potential-free contact between the BMA and the BMZ module.
BMA-ON function By actuating the potential-free contact in the BMZ, a trip (EMERGENCY OPEN) of the SHE group is generated. All SHE actuators open automatically. The ventilation buttons are now out of operation.
BMA-ZU function BMA-Zu "is also possible. By actuating the potential-free contact in the BMZ, a release (EMERGENCY CLOSE) of the SHE group is generated. All SHE actuators will automatically CLOSE. The ventilation buttons are now out of operation. The SHE buttons have priority over the BMZ.