Hacousto Holland bv
Industrieweg 87
2651BC Berkel & Rodenrijs
4Evac SW6 / SW6-LITE INSTALLATION and USER
GUIDE V04
Author:
TC
Page 16 of 26
Output fault:
Output faults are detected only for lines, where EOL monitoring is enabled in settings, provided
that calibration has been performed successfully. If a line is not calibrated, then it will not report
any faults (SW6 has no reference load value).
a) Short circuit – low 20 kHz impedance fault
If an output line is detected as shorted, it will be automatically disconnected from channel A or B.
Shorted line will be moved to internal surveillance bus, where it will be still under constant
surveillance, without affecting other lines. Shorted line will generate fault status and short
indication.
Short circuit is detected whenever load measurement at 20 kHz:
•
Falls below the calibrated reference value, minus the impedance tolerance threshold, or
•
Falls below approximately 15 Ohm (@ 20 kHz), which is the absolute minimum impedance
required for correct measurement.
b) Open circuit / speakers missing / EOL missing – high 20 kHz impedance fault
If an output is detected as open, the line will enter open fault status and indication. Further, open
line will behave as a healthy line and will be routed to input A or B, depending on the zone
activation.
Open is detected whenever load measurement at 20 kHz:
•
Gets above the calibrated reference value, minus the impedance tolerance threshold, or
•
Gets above approximately 10 kOhm (@ 20 kHz).
5.3.
24V DC input
4E-SW6 is normally powered via L-Net cable. Single L-Net port of Compact / Impact Controller
delivers maximum 500 mA, thus for reliable operation maximum 2 pieces of 4E-SW6 may be
powered over single L-Net port (see power consumption in specification sheet).
If you need to connect more than 2x SW6 modules to the same L-Net bus, then you need to
provide additional 24V DC power line via the power connector on all SW6 modules connected to
the same L-Net bus.
DC power input is doubled (two parallel connectors), for easy daisy-chaining multiple units from
power source.