Error art
Description
FAULT DISPLAY
The red FAULT DISPLAY indicator lights, if a error message is indicated at the amplifier's front
LC-Display.
THERMAL WARNING The power amplifier is protected against thermal overload and will reduce the output power if
the internal temperature exceeds a fixed threshold value (please refer to the owner‘s manual
for more details). In this case the THERMAL WARNING indicator lights red.
With the THERMAL HEADROOM parameter in IRIS-Net the threshold for the THERMAL
WARNING indication can be changed to get the warning indication already at lower
temperatures, meaning before the amplifier reduces the output power. The THERMAL
HEADROOM can be adjusted from 0 to 30 °C which means a temperature warning indication
could be configured up to 30 °C before reduction.
NETWORK
This indicator shows whether communication at the CAN bus interface is normal (green) or
when a problem exists (red). The power amp automatically detects whether commands from a
PC or another central control unit are missing and signals the problem via the Communication
Flag.
PROTECT /
REDUCTION
When the red PROTECT / REDUCTION indicator lights, one of the internal protections (thermal
overload, short-circuit, Back-EMF, HF at the output, etc.) has been activated. The differentiated
protections concept of the power amp results in several protection circuits being activated one
after another, which ensures that under normal circumstances the power amplifier will stay in
the safe and stabile opera- ting range.
PROTECTION MUTE
When the red PROTECT MUTE indicator lights, the signal path gets switched off. The amplifier
needs to be switched off to prevent power amplifier and connected speaker systems from
being damaged, this is indicated by the PROTECT and MUTE-LEDs being lit simultaneously.
SHORTED / LOAD LO This indicator lights red when the measured impedance value of the corresponding power amp
output falls below a pre-set minimum or when it is shorted. Setting the minimum value is
possible in the Load dialog.
OPEN / LOAD HI
This indicator lights red when the measured impedance value of the corresponding power amp
output exceeds a pre-set maximum or when cable interruption is detected. Setting the
maximum value is possible in the Load dialog.
IRIS-Net
REMOTE AMPLIFIER | en 218
Bosch Security Systems B.V.
User Manual
2017.05 | 3.20 | F.01U.119.956
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