Watlow SDA Card Shorted Solid State Relay Detector Manual de usuario descargar pdf (Pagina 2)

To Heater

TB1

2 1

(See below for wiring.)

Load

Line

Fuse

Load Number of Passes of Load Wire

Current Through Current Transformer

2 to 3 Amps 5

3 to 4 Amps 4

4 to 5 Amps 3

5 to 10 Amps 2

10 to 40 Amps 1

Load

Semiconductor

Fuse

AC Line

Voltage

Input

Signal

- +

Input

- +

Output

DC Input

Solid State Relay

2 1

120 V~ (ac)

To Alarm

or Contactor

Customer Supplied Relay

(Philips ECG PIY 1055 or equivalent)

TB1

SDA Board

08-5386

Current

Transformer

30A to 20mA

Figure 3 - SDA Card Wiring

Table 1 - Application of 16-0231 Current Transformer

Figure 2 - Three Dimensional View of Wiring

NOTE: The triac connection

between connector TB1 pins

1 and 2 is closed when a

shorted SSR condition is

detected. This output is rated

24 to 240V~ (ac), 300mA @

25°C, 125mA @ 80°C.

1 2

SDA Card 1
- + 2

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Watlow SDA Card Shorted Solid State Relay Detector Manual de usuario Pagina 2

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