L2275
Emax UL
58/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
C
B
A
14.4.4.3
State of power circuit breaker auxiliary inputs
CB StatuS:
x x x x x
Status of the power circuit breaker. The possible states are: Open - Closed – Error*
CB Springs: y y y y y
State of spring charging. The possible states are: Charged – Discharged
CB Pos.:
z z z z z
Position of the power circuit breaker. The possible states are: Conn. – Isol.
Test YO/YC: k k k
See par. 14.4.5
* The display of "Error" indicates a condition of incongruence (both the CB-Open and CB-Closed inputs are in the same logical state)
14.4.5 Control functions
CB Status :
x x x x x
See par. 14.4.4.3
CB Springs:
y y y y y
See par. 14.4.4.3
CB Pos. :
z z z z z
See par. 14.4.4.3
Test YO/YC:
k k k
Control function for opening and closing the power circuit breaker by means of coils YC and YO.
• To open the power circuit breaker, select YO and then press the TEST pushbutton on the front of the PR112/PD-A
• To close the power circuit breaker select YC and then press the TEST pushbutton on the front of the PR112/PD-A
14.4.6 User interface
Caption of the front of the PR112/PD-A unit (integration of the caption relative to the PR112/P-A version):
Ref.
Description
A
“µP fault” LED relative to operation of the µProcessor dialogue unit.
B
“NETWORK” LED linked to the state of communication activities (Tx) on external bus.
C
Identification label for trip unit according to ANSI/UL Standards
