Start And Operation Indicators; Combined Power Supply And I/O Module - ABB SPAJ 131 C User Manual And Technical Description

Start and
operation
indicators
Combined power
supply and I/O
module
= 1A f n = 50Hz
I 5A
n
60Hz
SPAJ 131 C
80...265V ~ –
U
18...80V –
SPCJ 3C3
REGISTERS
0 0 0 0
1 /
I I
n
2 ( > )
n I
3 n ( > > ) SGR
I
4 > [ ]
t / t %
5 t t > > [ % ]
/
0 1
RS 421 Ser.No.
1. Either overcurrent stage has its own opera-
tion indicator (I> and I>>), located in the
right bottom corner of the front plate of the
relay module. Yellow light indicates that the
concerned stage has started and red light that
the stage has operated (tripped).
With the SG2 software switchgroup the start
and trip indicators can be given a latching
function, which means that the LEDs and the
output relay remain lit, although the signal
that caused operation returns to normal. The
indicators are reset with the RESET push-
button. An unreset indicator does not affect
the operation of the relay.
The combined power supply and I/O module
(U2) is located behind the system front panel of
the protection relay and can be withdrawn from
the relay case after removal of the system front
panel. The power supply and I/O module incor-
porates a power unit, four output relays, the
control circuits of the output relays and the
electronic circuitry of the external control in-
put.
The power unit is transformer connected, that
is, the primary circuit and the secondary circuits
are galvanically isolated. The primary circuit is
protected by a slow 1 A fuse F1, placed on the
PC board of the module. When the power
source operates properly, the green U
on the front panel is lit.
B
I >
I >>
2
I I I
IRF
L1 L2 L3
5
STEP 1.5
I >
aux STEP
I
n
0.5 2.5
0.5
t [ ]
> s
SG1
k
1
0.05 1.0
2
3
4
5
13
6
7
I
>>
20 8
1 I
n
0
1
2
2.5
3
4
RESET
5
6 0.5
7
8
t [ ]
>> s
0.04 1.0
I I
> >>
SPCJ 3C3
LED
aux
2. The yellow LEDs (I
L1
black part of the front plate indicate, when lit,
that the value of the concerned phase current
is being displayed.
3. The red IRF indicator of the self-supervision
system indicates, when lit, that a permanent
internal relay fault has been detected. The
fault code appearing on the display once a
fault has been detected should be recorded
and notified when service is ordered.
4. The green U LED on the front panel is lit
aux
when the power supply module operates prop-
erly.
5. The LED indicator below a setting knob
indicates, when lit, that the setting value is
being displayed.
6. The LED of the SG1 switchgroup indicates,
when lit, that the checksum of the switch-
group is being displayed.
The start and operation indicators, the function
of the SG2 software switchgroup and the func-
tions of the LED indicators during setting are
described more detailed in the relay module
manual for the three-phase overcurrent relay
module SPCJ 3C3.
The power supply and I/O module is available
in two versions which have different input volt-
age ranges:
- type SPTU 240S1 U
aux
- type SPTU 48S1 U
aux
The input voltage range of the power supply and
I/O module incorporated in the relay on deliv-
ery is marked on the system front panel of the
relay.
, I , I ) on the upper
L2 L3
= 80...265 V ac/dc
= 18...80 V dc
7