Emerson DCX S - Table 8.16 Troubleshooting Ultrasonic Power Problems

100-412-183 REV. 13 131
8.6.3 Ultrasonic Power Problems
Table 8.16 Troubleshooting Ultrasonic Power Problems
Problem Check Solution
Ultrasonic power delivered
to horn; no indication on
bar graph.
Check connector cables,
replace if failed.
Replace defective
cables.
Test power supply.
See
7.7 Ultrasonics Test
Procedure.
No ultrasonic power
generated when Test key
pressed; no Alarm indicator.
Failed or missing stack. Replace.
RF cable unplugged or failed;
replace if failed.
Plug in or replace.
Test power supply (see 7.7
Ultrasonics Test Procedure).
If defective, send unit
for repair.
Unable to adjust amplitude
using the front panel
keypad.
Register setting configured to
“External Amplitude Control”
Reset if required, See
7.4 Configuring the
Power Supply Registers.
Unable to remote control.
User I/O cable Repair or replace.
Customer’s switching device
Test/inspect/repair/
replace.