Users manual
NR2316-OG
Revision #:
E
Date:
5/4/18
Page #:
9 of 50
www.novuspower.com
2.3 Channel Status
The Channel Status can be determined by reading the actual RMS value on the
output of each stage. This is compared to a threshold limit that is set by the user as
a percentage variation from a saved value. The default variation value is set at
±
55% percent from the current state of the amplifier, and is user programmable in
5% increments from
±
10% to
±
60%.
The range of acceptable Channel Amplitude can be narrowed around a connected
balanced line, such that a Channel Status below the Alert Threshold indicates a
shorted line, while a Channel Status above the Alert Threshold window indicates
a potential disconnected cable.
The threshold value at which a channel alert is triggered can be programmed on
the Alert Threshold screen, or programmed via the RS232 port. Once set, the unit
would continue to monitor each channel and a deviation beyond the set limits
would be reported as a failure on the front panel and via RS232.
The Channel Status feature can quickly detect a cabling failure. Any change in
the load impedance will change the output voltage with respect to the divider
formed by the output impedance of the amplifier and the load impedance. Failing
cables and connectors can be detected early.
The current threshold limits are displayed in addition to the actual measured
value. These values reflect the percentage threshold defined in the Alert
Threshold settings. If the output value is too low to give a valid reading. The
display will read “LOW.”
The status is displayed on the front panel and is accessible over the RS232 serial
bus via DB9. Channel Statuses can be cycled into view or can remain on a single
channel. This feature can be accessed via the NEXT button, by advancing to the
Channel Status screen. To cycle through channels in sequence, press the
SELECT button.