81307118N
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9
1.5.3 CA 443
Dit product dient om het stroomverbruik, de faseafwijking en de spannings ingang voor een pomp of
een compleet station te meten.
If pump is operated from a frequency converter, special precautions are required.
The high electric noise level can distort electrical readings, especially phase timing readings are
sensitive to switch transients from frequency converter.
Turn o all phase related alarms and dry run detection in PC 441 and ensure PC 441 rmware ver-
sion is V.1.42 or later
Normal current transformers operate from 45-60 Hz and must be placed on mains line input to
frequency converter.
Use only mains phase (voltage) missing alarm for pump protection (blocking).
To avoid conducted electrical noise in cabinet, follow best practices and manufacturer EMC compli-
ance recommendation when installing frequency converters. Use shielded cables. Ensure mains
and motor cables are separated from signal cables in cabinet.
General precautions:
If CA 443 for P1 also is used for mains monitoring, L1, L2 and L3 voltage inputs must be connected
before pump circuit breaker
Tabel 9. CA 443 gegevens
Ingang Bereik Commentaar
Spanning 30 - 300 V ac ± 5.0 V ac Gebruik een spanningsom-
vormer bij hogere voltages
Stroom 0 - 5 A ± 0.1 A ac fasewissel
0 - 90 gr ± 1.5 gr
Gebruik altijd een transforma-
tor
Tabel 10. Verbindingen onderzijde
#Dir. Signal Description
6←Sensor 1 AC spanningsingang L1
7←Sensor 2 AC spanningsingang L2
8←Sensor 3 AC spanningsingang L3
9←GND Spanning referentie ingang
10 ←a Sensor 4
Stroom transformator ingang 1
11 ←b GND
12 ←a Sensor 5
Stroom transformator ingang 2
13 ←b GND
14 ←a Sensor 6
Stroom transformator ingang 3
15 ←b GND
Tabel 11. CA 443 LED indicators from PC 441 rmware 1.42
LED Indication Mains monitor (0 or 1) Pump monitor (1-4)
1 Phase 1 Voltage missing Voltage missing
2 Phase 2 Voltage missing Voltage missing
3 Phase 3 Voltage missing Voltage missing
4Warning Alarm wrong phase order
Alarm phase missing
Pending high voltage
Pending low voltage
Pending unbalanced voltage
Pending high freq.
Pending low freq.
Alarm phase current missing
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
CA 443