
Manual 37139C
UMT 1 - Measuring Transducer
© Woodward
Page 19/62
LEDs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
NOTE
If neither of the "Wye" and "Delta" LEDs is illuminated, the first line of the display indicates the wire
current values.
1
"Wye"
Color: Yellow
Indication of the wye voltages
If this LED is illuminated, the values indicated on the display are the wye
(star) voltages (phase-neutral).
2
"Delta"
Color: Yellow
Indication of the delta voltages
If this LED is illuminated, the values indicated on the display are the delta
voltages (phase-phase).
3
"Operation "
Color: Green
Operation
This LED is illuminated constantly when the control unit is in the Automatic
mode. If this LED is flashing, the control is in the configuration mode.
4
"Alarm"
Color: Red
Alarm
This LED illuminates if an alarm condition has occurred.