GE GEK-106465A - Manual (Page 29)

HARDWARE
28 CIO Remote CAN Digital I/O Module GEK-106465A
INTERNAL STATE V 52/a V 52/b SUPERVISION
52 open ON ON OK
52 closed ON OFF OK
TRIP OFF OFF Ok if t < 0.5 s
TRIP with 52 open OFF ON OK
Status of Involved Elements Inputs to F650 Decision
CIRCUIT
STATUS
OUTPUT
STATUS
(F35-F36)
BREAKER
STATUS
OPERAND
CONTACT
INPUT_00_10
(Va_COIL2)
V 52/a (15-16)
OPERAND
CONTACT
INPUT_00_11
(Vb_COIL2)
V 52/b (17-18)
OPERAND
CONTACT
INPUT_00_15
(SUP_COIL2)
Healthy Open 52 closed ON OFF ON
Healthy Open 52 open ON ON ON
Healthy Closed 52 closed OFF OFF ON (if t < 500 ms)
OFF (if t > 500 ms)
Healthy Closed 52 open OFF ON ON (if t < 500 ms)
OFF (if t > 500 ms)
Defective Open 52 closed OFF OFF OFF (500 ms delay)
Defective Open 52 open OFF OFF OFF (500 ms delay)
Defective Closed 52 closed OFF OFF OFF (500 ms delay)
Defective Closed 52 open OFF OFF OFF (500 ms delay)
There is a possibility to monitor the trip circuit continuity not only via its auxiliary contact 52/a, but also with auxiliary
contact 52/b. This avoids the need to install a resistance in parallel with auxiliary 52/a. The correct connection is
shown on FIGURE 3-12.
The circuit works in a similar way to the one described in the previous section, but it uses both supervision inputs 15-
16 and 17-18.
The advantage in this case is that circuit supervision with 52 open is more complete, as input V 52/b is used through
contact 52/b, (that is closed when the breaker is open).
We must point out that in this scheme, the tripping contact, shown in the example as the CIO trip relay, can be the
one in the relay (terminals 35 and 36), or be provided by another protection or by the parallel of several protections.
This provides high flexibility in the use of this circuit.
The battery voltage can also be monitored, by using one of the standard digital inputs.