Emerson 2000IW - Table 4.3 Ultrasonic Power Troubleshooting

54 1019567 REV. 03
* Fretting corrosion refers to a black, crusty build-up, resulting from friction between metal parts, that appears
on the Converter-Booster-Horn Stack mating surfaces. Refer to 6.1.1 Reconditioning the Stack (Converter,
Booster and Horn).
No ultrasonic power generated when you
press TEST; no overload alarm (Error 18
IW, Error 19 IW+) displayed.
Unplugged harness
between Ultrasonic
Power Supply module
and Controller Board.
Chapter 3:
Schematics
Converter is not
installed.
Faulty or missing
converter; replace or
install converter.
2000 IW/IW+
Operating Manual
Make sure all
connections on
Controller module are
secure.
Chapter 3:
Schematics
Chapter 5:
Assembly/
Disassembly
Check Keypad;
replace if faulty.
Ultrasonic power delivered to horn; no
indication appears on POWER
BARGRAPH.
Check harness P22;
repair if faulty.
Chapter 3:
Schematics;
Chapter 4:
Troubleshooting;
and Chapter 5:
Assembly/
Disassembly
Overload alarm (Error 18 IW, Error 19
IW+) appears on display: (a) during the
weld cycle; or (b) when you press TEST.
Check Converter-
Booster-Horn Stack
mating surfaces for
fretting corrosion.*
Chapter 6: Repair
Tune the welder
Check for loose or
faulty horn or booster;
tighten or replace as
needed.
2000 IW/IW+
Operating Manual
Check for loose or
faulty horn or booster
setscrew (stud);
tighten or replace as
needed.
Check converter;
replace if faulty.
Table 4.3 Ultrasonic Power Troubleshooting
Problem Cause/Solution Refer to