User Manual California Instruments
CSW Series 179
Number Message String Cause Remedy
22
"Waveform harmonics
limit"
Harmonic contents of
user defined wave
shape is too high and
could damage
amplifier output
stage.
Reduce harmonic content or reduce
fundamental frequency programmed.
24
“Output Relay must be
closed”
Attempt to change
voltage range while
output relay is closed.
Open output relay first, then change
range.
25
“Overvoltage
Protection Trip”
Over voltage trip limit
exceeded.
Check for inductive kickbacks or
overshoot on eut.
26
“Peak Current
Protection Trip”
Peak current exceeds
trip limit.
Reduce load or increase trip level.
29
“DC component
exceed limit”
Waveform selected
has too much DC
content to be
supported on AC
coupled voltage
range.
Use AC waveform without DC offset
only or select DC coupled voltage
range. (Applies to MX with –HV
models only).
30 “Dc Bus Fault
Amplifier DC bus
lower than required to
support the output
load
AC Line input too low.
Table 9-1: Error Messages.
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