User manual, Check synchroscope CSQ-3
4189340263L (UK)
3.1 LEDs
The CSQ-3 has the following LEDs on the fronts showing different operating
information.
LEDs on primary front (normal mode):
LED
Colour Function
Circle
Red
The lit LED in the circle shows the phase difference between
GEN and BUSBAR
SYNC.
Green All preset sync. parameters are OK, and the output relay is
activated
ϕ
OK
Yellow The phase difference between GEN and BUSBAR is within
the preset window
U
GEN
TOO HIGH
Red
The voltage difference between GEN and BUSBAR is outside
the preset range. U
GEN
is too high
U
GEN
TOO LOW
Red
The voltage difference between GEN and BUSBAR is outside
the preset range. U
GEN
is too low
LEDs on secondary front (setting mode):
LED
Colour Function
Circle
Red
Parts of the circle are used as scales for the different settings
∆ϕ
Yellow Shows that the
∆ϕ
scale is active
t
d
Yellow Shows that the t
d
scale is active
Please notice that t
d
only becomes active with t
R
set to
∞
t
R
Yellow Shows that the t
R
scale is active
∆
U
Yellow Shows that the
∆
U scale is active
U
bus
Yellow Shows that the U
bus
scale (dead bus) is active
For further information about the settings, please see appendix 1.
