Sulzer CA 441 Guia De Instalacion página 9

1.5.2 CA 442
1.5.2.1 Vibration
Book_81307110_CA44x.indb 9 Book_81307110_CA44x.indb 9
The product is for indicating temperature and prevent overheating of pumps.
If pump is operated from a motor drive or frequency converter, special precautions are
required.
The high electric noise level can distort electrical readings and in extension jeopardize functionality.
To avoid conducted electrical noise, follow best practices and manufacturer EMC compliance
recommendations when installing frequency converters. Use shielded cables and 50 cm separation
between power and signal cables. Ensure that the cables are also separated from each other in
cabinets.
Table 7. CA 442 ratings
Input
Opt mA in 4.0 - 20.0 mA
Pt100 -20 - +180ºC (-4 - +356ºF)
PTC 0 - 10 kohm
If one module of CA 442 is used for all pumps, Sensor 1 = Pump 1, Sensor 2 = Pump 2 etc. In case
of one CA 442 module for each pump, follow the table 8 below.
Table 8a. Configuration of the temperature input on CA 442 ID 1-4
# Signal
Dir.
6 ← Sensor 1
7 ← GND
8 ← Sensor 2
9 ← GND
←
10 Sensor 3
←
11 GND
←
12 Sensor 4
←
13 GND
14 ← 0 V
15 Analogue mA in Analogue input (4 - 20 mA)
←
* The properties of the inputs of T1 and T4 are shared. T1 and T4 are using
same alarm number (see Modbus register manual for more information) and T1
and T4 can have separate type of sensors (T1 can be connected to PTC and
T4 Pt100 or vv.).
Terminal 14 and 15 are a 4-20 mA analogue input for vibration sensor. The input is only active in
CA 442 ID 1-4.
If the sensor has own power supply:
15 mA In
14 0V
Range
± 0.5 mA
± 2ºC / ± 4ºF
Description
Temp. sensor 1:
T1 Stator*
Temp. sensor 2:
T2 Upper bearing
Temp. sensor 3:
T3 Lower bearing
Temp. sensor 4:
T4 Stator*
Reference vibration sensor
Vibration sensor
+
External Sensor
With own power
-
supply, 4-20 mA
9
Comment
CA 442
EN
05/04/2022 12:13:28 05/04/2022 12:13:28