General Precautions - Sulzer ABS CA 441 Installationshandbuch

1.5.3 CA 443
Book_81307110_CA44x.indb 71 Book_81307110_CA44x.indb 71
O produto é usado para medir consumo de corrente, desvios de fases e tensão de alimentação de
uma bomba ou uma estação completa.
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 off all phase related alarms and dry run detection in PC 441 and ensure PC 441 firmware 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
Tabela 9. Valores nominais do CA 443
Entrada
Tensão 30 - 300Vac ± 5,0Vac
0 - 5 A ± 0,1Aca desvio de fase
Corrente
0 - 90° ± 1,5°
Tabela 10. Conexões na parte inferior
Dir.
Signal
#
Sensor 1
6
←
Sensor 2
7
←
Sensor 3
8 ←
GND
9 ←
←
a Sensor 4
10
←
b GND
11
←
a Sensor 5
12
← b GND
13
← a Sensor 6
14
←
b GND
15
Tabela 11. CA 443 LED indicators from PC 441 firmware 1.42
LED Indication Mains monitor (0 or 1)
1 Phase 1 Voltage missing
2 Phase 2 Voltage missing
3 Phase 3 Voltage missing
4 Warning Alarm wrong phase order
Alarm phase missing
Pending high voltage
Pending low voltage
Pending unbalanced voltage
Pending high freq.
Pending low freq.
Range Comentário
Para valores maiores, usar
transformador de tensão
Usar sempre transformador de
corrente
Description
Tensão de entrada em CA L1
Tensão de entrada em CA L2
Tensão de entrada em CA L3
Tensão de entrada de referência
Entrada do transformador de
corrente 1
Entrada do transformador de
corrente 2
Entrada do transformador de
corrente 3
Pump monitor (1-4)
Voltage missing
Voltage missing
Voltage missing
Alarm phase current missing
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CA 443
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31/03/2022 10:36:47 31/03/2022 10:36:47