Fronius TRANSTIG 330 - PWM 3 D Circuit Board LED Checklist; Transient Protection and PWM LEDs; Mains Voltage and Phase Fault LEDs

58
Fig. 52 LED checklist for pc-b PWM 3D.
WARNING: Setting-dials not figuring above may only be adjusted by Fronius personnel!
TRANSIENT PROTECTION
LED indicator only lights up
when overvoltage protection
is activated
LED indicator for
PWM start-up
DES. VALUE FOR WELDING CURRENT
The higher the desired values,
the brighter the LED indicators.
LED indicator lights up if there are
MAINS OVERVOLTAGES
of > 15%
LED indicator lights up if there are
MAINS OVERVOLTAGES
of > 44%, or if a phase fails
This LED indicator lights up for
approx. 10 secs. if there has been
a mains over/undervoltage of +/- 10%
indicated on either of the other LED's
LED +5V / +15V
Must always be lit up
when the machine is ON