BECKWITH ELECTRIC M?3311A, Инструкция

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M‑3311A Instruction Book
6–50
BM Breaker Monitoring
VOLTAGE INPUTS: None
CURRENT INPUTS: As Described
TEST SETTINGS: Pickup P kAmps (kA
2
)* (0 to 50,000)
Delay D Cycles (0.1 to 4095.9)
Timing Method (
I
T or
I
2
T)
Preset Accumulators
Phase A, B, or C kAmp (kA
2
) Cycles* (0 to 50,000)
Programmed Outputs Z OUT (1 to 8)
Expanded I/O (9 to 16)
Blocking Inputs (1 to 6)
Expanded I/O (7 to 8)
Output Initiate (1 to 8)
Expanded I/O (9 to 16)
Input Initiate (1 to 6)
Expanded I/O (7 to 8)
* kA/kA cycles or kA 2 /kA 2 cycles is dependent on the Timing Method that is selected.
Test Setup:
1. Determine the Breaker Monitoring Function settings to be tested (Input Initiate or Output Initiate).
2. Enter the Breaker Monitoring Function settings to be tested utilizing either the HMI or IPScom
®
Communications Software.
3. Connect current inputs to
I
A
terminals 38 and 39,
I
B
terminals 40 and 41, and
I
C
terminals 42 and
43.
Accumulator Test
:
1. Apply a current value that considers Timing Method and Pickup Setting to current input
I
A
.
2. Place a jumper between the designated input or output contact selected as initiate.
3. Utilizing either the HMI (Breaker Monitoring/Breaker Acc. Status) or IPScom Communications
Software (Monitor/Metering II), verify that the Accumulator Status value for Phase A increments
in D cycles

1 cycles or

1%.
4. Remove the jumper placed in Step 2.
5. Decrease applied
I
A
current to 0 amps.
6. If desired, repeat test for
I
B
and
I
C
.