ABB Zenith ZTX Series, Руководство по эксплуатации, техническому обслуживанию и установке

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1
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3.5 LED functionality in HMI
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Fig. 3.6 LEDs in ZTX, open transition I - II.
I - II
Lamp
test
l
ON
Off
load
test
ll
ON
Auto
Alarm reset
On
load
test
Bypass
time
delay
Generator
stop delay
4 min
30 s
ΔU 20% / Δf 10%
0
1 2
3 4
5 10
15 20
30
S1 Failure
delay [s]
S1 Return
delay [min]
O Position
delay
4 s
0 s
O
OFF
Manual
retransfer
Auto
config
Priority
In-phase
monitor
AUTO
!
S1 S2
LOAD
l ll
LED Indication Description
Power led
Lamp
test
l
Off
load
test
ll
Auto
Alarm reset
On
load
test
Bypass
time
delay
Generator
stop delay
4 min
30 s
ΔU 10% / Δf 5%
ΔU 15% / Δf 10%
ΔU 20% / Δf 10%
0
1 2
3 4
5 10
15 20
30
S1 Failure
delay [s]
S1 Return
delay [min]
Manual
retransfer
On
Priority
No priority
In-phase
monitor
On
AUTO
!
S1 S2
LOAD
l ll
O
ON, fixed light
nnnn
Power supply and communication present
2 quick flashes/1s Power supply present, communication
absent between switch and the HMI
OFF
nnnn
No power available for HMI.
S1 and S2 leds
Off
load
test
ll
ON
Auto
Alarm reset
On
load
test
Bypass
time
delay
4 min
30 s 4
5 10
15 20
30
S1 Return
delay [min]
4 s
0 s
O
OFF
Manual
retransfer
Auto
config
Priority In-phase
monitor
AUTO
!
LOAD
l ll
S1 S2
ON, fixed light
nnnn
S1 or / and S2 is present and within user
defined limits
2 quick flashes/1s
nn nn n nn
Undervoltage
Flash/1 s, 90%/10 %
nn n
Invalid frequency
Flash/1 s, 10%/90 %
n nn
Unbalance
5 flashes/1 s, 50%/50 % Overvoltage
Flash/2 s, 50%/50%
nn nn
Incorrect phase sequence
Flash/4 s, 50%/50 %
nnnn nnnn
Phase missing
Flash/1 s, 50%/50 %
n n
Generator stop delay ongoing
OFF No voltage
At the top of ZTX 30-1200 A, 200-480 Vac ATS, there is a set of LEDs intended to
model the state of the transfer switch sources, position, alarms, and mode. A
considerable amount of information can be deciphered from the LED states. See
the tables below for more information.