Front Panel; Operation Indicators - ABB SPAU 341 C User Manual

Front panel

Operation
indicators
Indicators for the measured voltage U
phase currents Im and voltage difference U
Indicator for reference voltage U
Indicator for bandwidth ∆U
Indicator for time delay T1
Indicator for time delay T2
Indicator for overcurrent blocking I>/I
Indicator for undervoltage blocking U</U
Indicator for overvoltage detection U>/U
Indicator for compensating parameter U
Indicator for compensating parameter U
Indicator for parallel operation
Indicator for manual operation
Fig. 2. Front panel of the automatic voltage regulating module SPCU 1D50.
When the voltage regulating module delivers a
raise or lower pulse, the yellow LED indicator
OUT in the bottom right corner of the front
panel is lit, and remains so as long as the pulse
is active. When the voltage U
range defined by ∆U
, either the lower or the
s
raise delay counter is on. If U
Indicator Segment Explanation
raise
lower
Fig. 3. Start indications of the delay counter, when U
,
m
d
s
s
n
n
n
r
x
is outside the
m
> ∆U
(upper
m s
Starts flashing, when the time delay of the raise pulse is running
Starts flashing, when the time delay of the lower pulse is running
Device symbol
U
U I U
IRF
Indicator of the self-supervision
m m d
system
Digital display
RESET
/
U U
s n
STEP
Display step push-button/
∆ [ ]
U U
%
s n
Reset push-button
[ ]
T1 s
PROGRAM
[ ]
T2 s
Program push-button
I / I
>
n
/
U
< U
AUT / MAN
n
AUT/MAN push-button
/
U U
>
n
U
LDC
r
PARALLEL
U
LDC
x
Parallel operation push-button
PARALLEL
MAN
Operation indicator
OUT
Type designation of the
SPCU 1D50
regulator module
limit), the bottom segment of the leftmost digit
starts flashing to indicate a lower pulse to come
after the set time delay. If U
limit), the top segment of the leftmost digit starts
flashing to indicate a raise pulse to come after
the set time delay.
is selected to be presented.
m
< ∆U
(lower
m s
7